MirrorSave
/
nodemcu-firmware
mirror of https://github.com/nodemcu/nodemcu-firmware.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
nodemcu-firmware/nodemcu_api_cn.html

2291 lines
122 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html><html><head><meta charset="utf-8"><style>body {
width: 45em;
border: 1px solid #ddd;
outline: 1300px solid #fff;
margin: 16px auto;
}
body .markdown-body
{
padding: 30px;
}
@font-face {
font-family: fontawesome-mini;
src: url(data:font/woff;charset=utf-8;base64,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) format('woff');
}
@font-face {
font-family: octicons-anchor;
src: url(data:font/woff;charset=utf-8;base64,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) format('woff');
}
.markdown-body {
font-family: sans-serif;
-ms-text-size-adjust: 100%;
-webkit-text-size-adjust: 100%;
color: #333333;
overflow: hidden;
font-family: "Helvetica Neue", Helvetica, "Segoe UI", Arial, freesans, sans-serif;
font-size: 16px;
line-height: 1.6;
word-wrap: break-word;
}
.markdown-body a {
background: transparent;
}
.markdown-body a:active,
.markdown-body a:hover {
outline: 0;
}
.markdown-body b,
.markdown-body strong {
font-weight: bold;
}
.markdown-body mark {
background: #ff0;
color: #000;
font-style: italic;
font-weight: bold;
}
.markdown-body sub,
.markdown-body sup {
font-size: 75%;
line-height: 0;
position: relative;
vertical-align: baseline;
}
.markdown-body sup {
top: -0.5em;
}
.markdown-body sub {
bottom: -0.25em;
}
.markdown-body h1 {
font-size: 2em;
margin: 0.67em 0;
}
.markdown-body img {
border: 0;
}
.markdown-body hr {
-moz-box-sizing: content-box;
box-sizing: content-box;
height: 0;
}
.markdown-body pre {
overflow: auto;
}
.markdown-body code,
.markdown-body kbd,
.markdown-body pre,
.markdown-body samp {
font-family: monospace, monospace;
font-size: 1em;
}
.markdown-body input {
color: inherit;
font: inherit;
margin: 0;
}
.markdown-body html input[disabled] {
cursor: default;
}
.markdown-body input {
line-height: normal;
}
.markdown-body input[type="checkbox"] {
box-sizing: border-box;
padding: 0;
}
.markdown-body table {
border-collapse: collapse;
border-spacing: 0;
}
.markdown-body td,
.markdown-body th {
padding: 0;
}
.markdown-body .codehilitetable {
border: 0;
border-spacing: 0;
}
.markdown-body .codehilitetable tr {
border: 0;
}
.markdown-body .codehilitetable pre,
.markdown-body .codehilitetable div.codehilite {
margin: 0;
}
.markdown-body .linenos,
.markdown-body .code,
.markdown-body .codehilitetable td {
border: 0;
padding: 0;
}
.markdown-body td:not(.linenos) .linenodiv {
padding: 0 !important;
}
.markdown-body .code {
width: 100%;
}
.markdown-body .linenos div pre,
.markdown-body .linenodiv pre,
.markdown-body .linenodiv {
border: 0;
-webkit-border-radius: 0;
-moz-border-radius: 0;
border-radius: 0;
-webkit-border-top-left-radius: 3px;
-webkit-border-bottom-left-radius: 3px;
-moz-border-radius-topleft: 3px;
-moz-border-radius-bottomleft: 3px;
border-top-left-radius: 3px;
border-bottom-left-radius: 3px;
}
.markdown-body .code div pre,
.markdown-body .code div {
border: 0;
-webkit-border-radius: 0;
-moz-border-radius: 0;
border-radius: 0;
-webkit-border-top-right-radius: 3px;
-webkit-border-bottom-right-radius: 3px;
-moz-border-radius-topright: 3px;
-moz-border-radius-bottomright: 3px;
border-top-right-radius: 3px;
border-bottom-right-radius: 3px;
}
.markdown-body * {
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.markdown-body input {
font: 13px Helvetica, arial, freesans, clean, sans-serif, "Segoe UI Emoji", "Segoe UI Symbol";
line-height: 1.4;
}
.markdown-body a {
color: #4183c4;
text-decoration: none;
}
.markdown-body a:hover,
.markdown-body a:focus,
.markdown-body a:active {
text-decoration: underline;
}
.markdown-body hr {
height: 0;
margin: 15px 0;
overflow: hidden;
background: transparent;
border: 0;
border-bottom: 1px solid #ddd;
}
.markdown-body hr:before,
.markdown-body hr:after {
display: table;
content: " ";
}
.markdown-body hr:after {
clear: both;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
margin-top: 15px;
margin-bottom: 15px;
line-height: 1.1;
}
.markdown-body h1 {
font-size: 30px;
}
.markdown-body h2 {
font-size: 21px;
}
.markdown-body h3 {
font-size: 16px;
}
.markdown-body h4 {
font-size: 14px;
}
.markdown-body h5 {
font-size: 12px;
}
.markdown-body h6 {
font-size: 11px;
}
.markdown-body blockquote {
margin: 0;
}
.markdown-body ul,
.markdown-body ol {
padding: 0;
margin-top: 0;
margin-bottom: 0;
}
.markdown-body ol ol,
.markdown-body ul ol {
list-style-type: lower-roman;
}
.markdown-body ul ul ol,
.markdown-body ul ol ol,
.markdown-body ol ul ol,
.markdown-body ol ol ol {
list-style-type: lower-alpha;
}
.markdown-body dd {
margin-left: 0;
}
.markdown-body code,
.markdown-body pre,
.markdown-body samp {
font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
font-size: 12px;
}
.markdown-body pre {
margin-top: 0;
margin-bottom: 0;
}
.markdown-body kbd {
background-color: #e7e7e7;
background-image: -moz-linear-gradient(#fefefe, #e7e7e7);
background-image: -webkit-linear-gradient(#fefefe, #e7e7e7);
background-image: linear-gradient(#fefefe, #e7e7e7);
background-repeat: repeat-x;
border-radius: 2px;
border: 1px solid #cfcfcf;
color: #000;
padding: 3px 5px;
line-height: 10px;
font: 11px Consolas, "Liberation Mono", Menlo, Courier, monospace;
display: inline-block;
}
.markdown-body>*:first-child {
margin-top: 0 !important;
}
.markdown-body>*:last-child {
margin-bottom: 0 !important;
}
.markdown-body .headeranchor-link {
position: absolute;
top: 0;
bottom: 0;
left: 0;
display: block;
padding-right: 6px;
padding-left: 30px;
margin-left: -30px;
}
.markdown-body .headeranchor-link:focus {
outline: none;
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.markdown-body h5,
.markdown-body h6 {
position: relative;
margin-top: 1em;
margin-bottom: 16px;
font-weight: bold;
line-height: 1.4;
}
.markdown-body h1 .headeranchor,
.markdown-body h2 .headeranchor,
.markdown-body h3 .headeranchor,
.markdown-body h4 .headeranchor,
.markdown-body h5 .headeranchor,
.markdown-body h6 .headeranchor {
display: none;
color: #000;
vertical-align: middle;
}
.markdown-body h1:hover .headeranchor-link,
.markdown-body h2:hover .headeranchor-link,
.markdown-body h3:hover .headeranchor-link,
.markdown-body h4:hover .headeranchor-link,
.markdown-body h5:hover .headeranchor-link,
.markdown-body h6:hover .headeranchor-link {
height: 1em;
padding-left: 8px;
margin-left: -30px;
line-height: 1;
text-decoration: none;
}
.markdown-body h1:hover .headeranchor-link .headeranchor,
.markdown-body h2:hover .headeranchor-link .headeranchor,
.markdown-body h3:hover .headeranchor-link .headeranchor,
.markdown-body h4:hover .headeranchor-link .headeranchor,
.markdown-body h5:hover .headeranchor-link .headeranchor,
.markdown-body h6:hover .headeranchor-link .headeranchor {
display: inline-block;
}
.markdown-body h1 {
padding-bottom: 0.3em;
font-size: 2.25em;
line-height: 1.2;
border-bottom: 1px solid #eee;
}
.markdown-body h2 {
padding-bottom: 0.3em;
font-size: 1.75em;
line-height: 1.225;
border-bottom: 1px solid #eee;
}
.markdown-body h3 {
font-size: 1.5em;
line-height: 1.43;
}
.markdown-body h4 {
font-size: 1.25em;
}
.markdown-body h5 {
font-size: 1em;
}
.markdown-body h6 {
font-size: 1em;
color: #777;
}
.markdown-body p,
.markdown-body blockquote,
.markdown-body ul,
.markdown-body ol,
.markdown-body dl,
.markdown-body table,
.markdown-body pre,
.markdown-body .admonition {
margin-top: 0;
margin-bottom: 16px;
}
.markdown-body hr {
height: 4px;
padding: 0;
margin: 16px 0;
background-color: #e7e7e7;
border: 0 none;
}
.markdown-body ul,
.markdown-body ol {
padding-left: 2em;
}
.markdown-body ul ul,
.markdown-body ul ol,
.markdown-body ol ol,
.markdown-body ol ul {
margin-top: 0;
margin-bottom: 0;
}
.markdown-body li>p {
margin-top: 16px;
}
.markdown-body dl {
padding: 0;
}
.markdown-body dl dt {
padding: 0;
margin-top: 16px;
font-size: 1em;
font-style: italic;
font-weight: bold;
}
.markdown-body dl dd {
padding: 0 16px;
margin-bottom: 16px;
}
.markdown-body blockquote {
padding: 0 15px;
color: #777;
border-left: 4px solid #ddd;
}
.markdown-body blockquote>:first-child {
margin-top: 0;
}
.markdown-body blockquote>:last-child {
margin-bottom: 0;
}
.markdown-body table {
display: block;
width: 100%;
overflow: auto;
word-break: normal;
word-break: keep-all;
}
.markdown-body table th {
font-weight: bold;
}
.markdown-body table th,
.markdown-body table td {
padding: 6px 13px;
border: 1px solid #ddd;
}
.markdown-body table tr {
background-color: #fff;
border-top: 1px solid #ccc;
}
.markdown-body table tr:nth-child(2n) {
background-color: #f8f8f8;
}
.markdown-body img {
max-width: 100%;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
.markdown-body code,
.markdown-body samp {
padding: 0;
padding-top: 0.2em;
padding-bottom: 0.2em;
margin: 0;
font-size: 85%;
background-color: rgba(0,0,0,0.04);
border-radius: 3px;
}
.markdown-body code:before,
.markdown-body code:after {
letter-spacing: -0.2em;
content: "\00a0";
}
.markdown-body pre>code {
padding: 0;
margin: 0;
font-size: 100%;
word-break: normal;
white-space: pre;
background: transparent;
border: 0;
}
.markdown-body .codehilite {
margin-bottom: 16px;
}
.markdown-body .codehilite pre,
.markdown-body pre {
padding: 16px;
overflow: auto;
font-size: 85%;
line-height: 1.45;
background-color: #f7f7f7;
border-radius: 3px;
}
.markdown-body .codehilite pre {
margin-bottom: 0;
word-break: normal;
}
.markdown-body pre {
word-wrap: normal;
}
.markdown-body pre code {
display: inline;
max-width: initial;
padding: 0;
margin: 0;
overflow: initial;
line-height: inherit;
word-wrap: normal;
background-color: transparent;
border: 0;
}
.markdown-body pre code:before,
.markdown-body pre code:after {
content: normal;
}
/* Admonition */
.markdown-body .admonition {
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
position: relative;
border-radius: 3px;
border: 1px solid #e0e0e0;
border-left: 6px solid #333;
padding: 10px 10px 10px 30px;
}
.markdown-body .admonition table {
color: #333;
}
.markdown-body .admonition p {
padding: 0;
}
.markdown-body .admonition-title {
font-weight: bold;
margin: 0;
}
.markdown-body .admonition>.admonition-title {
color: #333;
}
.markdown-body .attention>.admonition-title {
color: #a6d796;
}
.markdown-body .caution>.admonition-title {
color: #d7a796;
}
.markdown-body .hint>.admonition-title {
color: #96c6d7;
}
.markdown-body .danger>.admonition-title {
color: #c25f77;
}
.markdown-body .question>.admonition-title {
color: #96a6d7;
}
.markdown-body .note>.admonition-title {
color: #d7c896;
}
.markdown-body .admonition:before,
.markdown-body .attention:before,
.markdown-body .caution:before,
.markdown-body .hint:before,
.markdown-body .danger:before,
.markdown-body .question:before,
.markdown-body .note:before {
font: normal normal 16px fontawesome-mini;
-moz-osx-font-smoothing: grayscale;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
line-height: 1.5;
color: #333;
position: absolute;
left: 0;
top: 0;
padding-top: 10px;
padding-left: 10px;
}
.markdown-body .admonition:before {
content: "\f056\00a0";
color: 333;
}
.markdown-body .attention:before {
content: "\f058\00a0";
color: #a6d796;
}
.markdown-body .caution:before {
content: "\f06a\00a0";
color: #d7a796;
}
.markdown-body .hint:before {
content: "\f05a\00a0";
color: #96c6d7;
}
.markdown-body .danger:before {
content: "\f057\00a0";
color: #c25f77;
}
.markdown-body .question:before {
content: "\f059\00a0";
color: #96a6d7;
}
.markdown-body .note:before {
content: "\f040\00a0";
color: #d7c896;
}
.markdown-body .admonition::after {
content: normal;
}
.markdown-body .attention {
border-left: 6px solid #a6d796;
}
.markdown-body .caution {
border-left: 6px solid #d7a796;
}
.markdown-body .hint {
border-left: 6px solid #96c6d7;
}
.markdown-body .danger {
border-left: 6px solid #c25f77;
}
.markdown-body .question {
border-left: 6px solid #96a6d7;
}
.markdown-body .note {
border-left: 6px solid #d7c896;
}
.markdown-body .admonition>*:first-child {
margin-top: 0 !important;
}
.markdown-body .admonition>*:last-child {
margin-bottom: 0 !important;
}
/* progress bar*/
.markdown-body .progress {
display: block;
width: 300px;
margin: 10px 0;
height: 24px;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
background-color: #ededed;
position: relative;
box-shadow: inset -1px 1px 3px rgba(0, 0, 0, .1);
}
.markdown-body .progress-label {
position: absolute;
text-align: center;
font-weight: bold;
width: 100%; margin: 0;
line-height: 24px;
color: #333;
text-shadow: 1px 1px 0 #fefefe, -1px -1px 0 #fefefe, -1px 1px 0 #fefefe, 1px -1px 0 #fefefe, 0 1px 0 #fefefe, 0 -1px 0 #fefefe, 1px 0 0 #fefefe, -1px 0 0 #fefefe, 1px 1px 2px #000;
-webkit-font-smoothing: antialiased !important;
white-space: nowrap;
overflow: hidden;
}
.markdown-body .progress-bar {
height: 24px;
float: left;
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
background-color: #96c6d7;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, .5), inset 0 -1px 0 rgba(0, 0, 0, .1);
background-size: 30px 30px;
background-image: -webkit-linear-gradient(
135deg, rgba(255, 255, 255, .4) 27%,
transparent 27%,
transparent 52%, rgba(255, 255, 255, .4) 52%,
rgba(255, 255, 255, .4) 77%,
transparent 77%, transparent
);
background-image: -moz-linear-gradient(
135deg,
rgba(255, 255, 255, .4) 27%, transparent 27%,
transparent 52%, rgba(255, 255, 255, .4) 52%,
rgba(255, 255, 255, .4) 77%, transparent 77%,
transparent
);
background-image: -ms-linear-gradient(
135deg,
rgba(255, 255, 255, .4) 27%, transparent 27%,
transparent 52%, rgba(255, 255, 255, .4) 52%,
rgba(255, 255, 255, .4) 77%, transparent 77%,
transparent
);
background-image: -o-linear-gradient(
135deg,
rgba(255, 255, 255, .4) 27%, transparent 27%,
transparent 52%, rgba(255, 255, 255, .4) 52%,
rgba(255, 255, 255, .4) 77%, transparent 77%,
transparent
);
background-image: linear-gradient(
135deg,
rgba(255, 255, 255, .4) 27%, transparent 27%,
transparent 52%, rgba(255, 255, 255, .4) 52%,
rgba(255, 255, 255, .4) 77%, transparent 77%,
transparent
);
}
.markdown-body .progress-100plus .progress-bar {
background-color: #a6d796;
}
.markdown-body .progress-80plus .progress-bar {
background-color: #c6d796;
}
.markdown-body .progress-60plus .progress-bar {
background-color: #d7c896;
}
.markdown-body .progress-40plus .progress-bar {
background-color: #d7a796;
}
.markdown-body .progress-20plus .progress-bar {
background-color: #d796a6;
}
.markdown-body .progress-0plus .progress-bar {
background-color: #c25f77;
}
.markdown-body .candystripe-animate .progress-bar{
-webkit-animation: animate-stripes 3s linear infinite;
-moz-animation: animate-stripes 3s linear infinite;
animation: animate-stripes 3s linear infinite;
}
@-webkit-keyframes animate-stripes {
0% {
background-position: 0 0;
}
100% {
background-position: 60px 0;
}
}
@-moz-keyframes animate-stripes {
0% {
background-position: 0 0;
}
100% {
background-position: 60px 0;
}
}
@keyframes animate-stripes {
0% {
background-position: 0 0;
}
100% {
background-position: 60px 0;
}
}
.markdown-body .gloss .progress-bar {
box-shadow:
inset 0 4px 12px rgba(255, 255, 255, .7),
inset 0 -12px 0 rgba(0, 0, 0, .05);
}
/* Multimarkdown Critic Blocks */
.markdown-body .critic_mark {
background: #ff0;
}
.markdown-body .critic_delete {
color: #c82829;
text-decoration: line-through;
}
.markdown-body .critic_insert {
color: #718c00 ;
text-decoration: underline;
}
.markdown-body .critic_comment {
color: #8e908c;
font-style: italic;
}
.markdown-body .headeranchor {
font: normal normal 16px octicons-anchor;
line-height: 1;
display: inline-block;
text-decoration: none;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.headeranchor:before {
content: '\f05c';
}
.markdown-body .task-list-item {
list-style-type: none;
}
.markdown-body .task-list-item+.task-list-item {
margin-top: 3px;
}
.markdown-body .task-list-item input {
margin: 0 4px 0.25em -20px;
vertical-align: middle;
}
/* Media */
@media only screen and (min-width: 480px) {
.markdown-body {
font-size:14px;
}
}
@media only screen and (min-width: 768px) {
.markdown-body {
font-size:16px;
}
}
@media print {
.markdown-body * {
background: transparent !important;
color: black !important;
filter:none !important;
-ms-filter: none !important;
}
.markdown-body {
font-size:12pt;
max-width:100%;
outline:none;
border: 0;
}
.markdown-body a,
.markdown-body a:visited {
text-decoration: underline;
}
.markdown-body .headeranchor-link {
display: none;
}
.markdown-body a[href]:after {
content: " (" attr(href) ")";
}
.markdown-body abbr[title]:after {
content: " (" attr(title) ")";
}
.markdown-body .ir a:after,
.markdown-body a[href^="javascript:"]:after,
.markdown-body a[href^="#"]:after {
content: "";
}
.markdown-body pre {
white-space: pre;
white-space: pre-wrap;
word-wrap: break-word;
}
.markdown-body pre,
.markdown-body blockquote {
border: 1px solid #999;
padding-right: 1em;
page-break-inside: avoid;
}
.markdown-body .progress,
.markdown-body .progress-bar {
-moz-box-shadow: none;
-webkit-box-shadow: none;
box-shadow: none;
}
.markdown-body .progress {
border: 1px solid #ddd;
}
.markdown-body .progress-bar {
height: 22px;
border-right: 1px solid #ddd;
}
.markdown-body tr,
.markdown-body img {
page-break-inside: avoid;
}
.markdown-body img {
max-width: 100% !important;
}
.markdown-body p,
.markdown-body h2,
.markdown-body h3 {
orphans: 3;
widows: 3;
}
.markdown-body h2,
.markdown-body h3 {
page-break-after: avoid;
}
}
</style><title>nodemcu_api_cn</title></head><body><article class="markdown-body"><h1 id="nodemcu-api"><strong>nodeMcu API说明</strong></h1>
<p><a href="https://github.com/funshine/nodemcu-firmware/wiki/nodemcu_api_en">English Version</a></p>
<h3 id="092-build-2014-11-19"><a name="user-content-092-build-2014-11-19" href="#092-build-2014-11-19" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>版本 0.9.2 build 2014-11-19</h3>
<p><a id="change_log"></a></p>
<h3 id="_1"><a name="user-content-_1" href="#_1" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>变更日志:</h3>
<p>2014-11-19<br /><br />
增加adc模块，adc.read(0)读取adc的值。<br /><br />
wifi模块增加wifi.sta.getap() 函数，用于获取ap列表。</p>
<p>2014-11-18<br /><br />
修正tcp服务器不能使用:close()函数关闭tcp连接的问题。<br /><br />
tcp服务器: 服务器将关闭30s内未使用的闲置的连接。（修正前为180s）<br /><br />
增加了函数node.input()用来向lua解释器输入lua代码段, 支持多行输入。<br /><br />
增加了函数node.ouput(function)用来将串口输出重定向于回调函数。<br /><br />
file.readline()函数返回值包含了EOL&rsquo;\n&rsquo;, 当读到EOF时，返回nil。</p>
<p>2014-11-12<br /><br />
全功能版本固件<br /></p>
<p>2014-11-11<br /><br />
文件模块中增加了file.seek()函数。<br /><br />
最多支持6个PWM输出。<br /></p>
<p>2014-11-10<br /><br />
log模块更名为file模块<br /><br />
文件操作支持多次读写。<br /><br />
当前仅支持打开一个文件进行操作。<br /></p>
<p>2014-11-5<br /><br />
node模块中删除了log函数。<br /><br />
增加了log模块。<br /><br />
修改wifi模块的函数。<br /><br />
修改了node.key长按与短按的默认回调函数。<br /><br />
只有当按钮被松开后，key才会被触发。<br /></p>
<h3 id="flash"><a name="user-content-flash" href="#flash" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>flash 错误</h3>
<p>注意：有些模块在烧写之后启动，串口输出 ERROR in flash_read: r=。。。<br /><br />
这是因为模块原来的flash内部没有擦除。<br /><br />
可使用blank512k.bin，<br /><br />
内容为全0xFF，从0x00000开始烧入。<br /><br />
烧入之后可以正常运行。</p>
<h1 id="_2"><a name="user-content-_2" href="#_2" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>概述</h1>
<ul>
<li>快速、自动连接无线路由器</li>
<li>基于Lua 5.1.4，使用者需了解最简单的Lua语法</li>
<li>采用事件驱动的编程模型</li>
<li>内置file, timer, pwm, i2c, net, gpio, wifi模块</li>
<li>串口波特率:9600-8N1</li>
<li>对模块的引脚进行编号；gpio，i2c，pwm等模块需要使用引脚编号进行索引</li>
<li>目前的编号对应表格:</li>
</ul>
<table>
<tr>
<th scope="col">IO index</th><th scope="col">ESP8266 pin</th><th scope="col">IO index</th><th scope="col">ESP8266 pin</th>
</tr>
<tr>
<td>0</td><td>GPIO12</td><td>8</td><td>GPIO0</td>
</tr>
<tr>
<td>1</td><td>GPIO13</td><td>9</td><td>GPIO2</td>
</tr>
<tr>
<td>2</td><td>GPIO14</td><td>10</td><td>GPIO4</td>
</tr>
<tr>
<td>3</td><td>GPIO15</td><td>11</td><td>GPIO5</td>
</tr>
<tr>
<td>4</td><td>GPIO3</td><td></td><td></td>
</tr>
<tr>
<td>5</td><td>GPIO1</td><td></td><td></td>
</tr>
<tr>
<td>6</td><td>GPIO9</td><td></td><td></td>
</tr>
<tr>
<td>7</td><td>GPIO10</td<td></td><td></td>
</tr>
</table>
<h1 id="_3"><a name="user-content-_3" href="#_3" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>固件烧写</h1>
<h3 id="_4"><a name="user-content-_4" href="#_4" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>地址</h3>
<p>nodemcu_512k.bin: 0x00000<br /></p>
<h1 id="node"><a name="user-content-node" href="#node" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node模块</h1>
<p><a id="nm_restart"></a></p>
<h2 id="noderestart"><a name="user-content-noderestart" href="#noderestart" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.restart()</h2>
<h4 id="_5"><a name="user-content-_5" href="#_5" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>重新启动</p>
<h4 id="_6"><a name="user-content-_6" href="#_6" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.restart()</p>
<h4 id="_7"><a name="user-content-_7" href="#_7" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_8"><a name="user-content-_8" href="#_8" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_9"><a name="user-content-_9" href="#_9" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> node.restart();
</code></pre>
<h4 id="_10"><a name="user-content-_10" href="#_10" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_dsleep"></a></p>
<h2 id="nodedsleep"><a name="user-content-nodedsleep" href="#nodedsleep" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.dsleep()</h2>
<h4 id="_11"><a name="user-content-_11" href="#_11" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>进入睡眠模式，计时时间之后唤醒<br /></p>
<h4 id="_12"><a name="user-content-_12" href="#_12" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.dsleep(us)<br /><br />
<strong>-注意:</strong> 如需使用此功能，需要将esp8266的PIN32(RST)和PIN8(XPD_DCDC)短接。</p>
<h4 id="_13"><a name="user-content-_13" href="#_13" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>us: 睡眠时间，单位：us</p>
<h4 id="_14"><a name="user-content-_14" href="#_14" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_15"><a name="user-content-_15" href="#_15" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> node.dsleep(us);
</code></pre>
<h4 id="_16"><a name="user-content-_16" href="#_16" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_chipid"></a></p>
<h2 id="nodechipid"><a name="user-content-nodechipid" href="#nodechipid" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.chipid()</h2>
<h4 id="_17"><a name="user-content-_17" href="#_17" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>返回芯片ID</p>
<h4 id="_18"><a name="user-content-_18" href="#_18" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.chipid()</p>
<h4 id="_19"><a name="user-content-_19" href="#_19" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_20"><a name="user-content-_20" href="#_20" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>number:芯片ID</p>
<h4 id="_21"><a name="user-content-_21" href="#_21" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> id = node.chipid();
</code></pre>
<h4 id="_22"><a name="user-content-_22" href="#_22" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_heap"></a></p>
<h2 id="nodeheap"><a name="user-content-nodeheap" href="#nodeheap" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.heap()</h2>
<h4 id="_23"><a name="user-content-_23" href="#_23" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>返回当前系统剩余内存大小，单位：字节</p>
<h4 id="_24"><a name="user-content-_24" href="#_24" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.heap()</p>
<h4 id="_25"><a name="user-content-_25" href="#_25" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_26"><a name="user-content-_26" href="#_26" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>number: 系统剩余内存字节数</p>
<h4 id="_27"><a name="user-content-_27" href="#_27" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> heap_size = node.heap();
</code></pre>
<h4 id="_28"><a name="user-content-_28" href="#_28" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_key"></a></p>
<h2 id="nodekey"><a name="user-content-nodekey" href="#nodekey" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.key()</h2>
<h4 id="_29"><a name="user-content-_29" href="#_29" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>定义按键的功能函数, 按键与GPIO16相连。</p>
<h4 id="_30"><a name="user-content-_30" href="#_30" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.key(type, function())</p>
<h4 id="_31"><a name="user-content-_31" href="#_31" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>type: type取字符串&rdquo;long&rdquo;或者&rdquo;short&rdquo;. long:按下按键持续3s以上, short: 短按按键(时间短于3s)<br /><br />
function(): 用户自定义的按键回调函数。 如果为nil, 则取消用户定义的回调函数。<br /><br />
默认函数：long：改变LED闪烁频率，short：重新启动。</p>
<h4 id="_32"><a name="user-content-_32" href="#_32" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_33"><a name="user-content-_33" href="#_33" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> node.key(&quot;long&quot;, function(){print('hello world')})
</code></pre>
<h4 id="_34"><a name="user-content-_34" href="#_34" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_led"></a></p>
<h2 id="nodeled"><a name="user-content-nodeled" href="#nodeled" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.led()</h2>
<h4 id="_35"><a name="user-content-_35" href="#_35" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置LED的亮/暗时间, LED连接到GPIO16, 与node.key()复用。</p>
<h4 id="_36"><a name="user-content-_36" href="#_36" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.led(low, high)</p>
<h4 id="_37"><a name="user-content-_37" href="#_37" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>Low: LED关闭时间，如设置为0，则LED处于常亮状态。单位：毫秒，时间分辨率：80~100ms<br /><br />
High: LED打开时间，单位：毫秒，时间分辨率：80~100ms</p>
<h4 id="_38"><a name="user-content-_38" href="#_38" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_39"><a name="user-content-_39" href="#_39" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- LED常亮.
node.led(0);
</code></pre>
<h4 id="_40"><a name="user-content-_40" href="#_40" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_input"></a></p>
<h2 id="nodeinput"><a name="user-content-nodeinput" href="#nodeinput" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.input()</h2>
<h4 id="_41"><a name="user-content-_41" href="#_41" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>接收字符串并将字符串传入lua解释器。<br /><br />
功能同pcall(loadstring(str))，增加了支持多行输入的功能。</p>
<h4 id="_42"><a name="user-content-_42" href="#_42" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.input(str)</p>
<h4 id="_43"><a name="user-content-_43" href="#_43" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>str: Lua代码段</p>
<h4 id="_44"><a name="user-content-_44" href="#_44" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_45"><a name="user-content-_45" href="#_45" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 注意：该函数不支持在命令行中使用。
sk:on(&quot;receive&quot;, function(conn, payload) node.input(payload) end)
</code></pre>
<h4 id="_46"><a name="user-content-_46" href="#_46" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="nm_output"></a></p>
<h2 id="nodeoutput"><a name="user-content-nodeoutput" href="#nodeoutput" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>node.output()</h2>
<h4 id="_47"><a name="user-content-_47" href="#_47" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>将lua解释器输出重定向于回调函数。</p>
<h4 id="_48"><a name="user-content-_48" href="#_48" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>node.output(function(str), serial_debug)</p>
<h4 id="_49"><a name="user-content-_49" href="#_49" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>function(str): 接收lua解释器输出的str作为输入，可以将该输出通过socket发送。<br /><br />
serial_debug: 1：将输出送至串口； 0：输出不送至串口</p>
<h4 id="_50"><a name="user-content-_50" href="#_50" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_51"><a name="user-content-_51" href="#_51" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> function tonet(str)
sk:send(str)
-- print(str) 错误!!! 千万不要在此函数中再使用print函数
-- 因为这样会导致函数的嵌套调用！！
end
node.ouput(tonet, 1) -- serial also get the lua output.
</code></pre>
<h4 id="_52"><a name="user-content-_52" href="#_52" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<h1 id="file"><a name="user-content-file" href="#file" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file 模块</h1>
<p><a id="fl_remove"></a></p>
<h2 id="fileremove"><a name="user-content-fileremove" href="#fileremove" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.remove()</h2>
<h4 id="_53"><a name="user-content-_53" href="#_53" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>删除文件。</p>
<h4 id="_54"><a name="user-content-_54" href="#_54" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.remove(filename)</p>
<h4 id="_55"><a name="user-content-_55" href="#_55" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>filename: 需要删除的文件。</p>
<h4 id="_56"><a name="user-content-_56" href="#_56" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_57"><a name="user-content-_57" href="#_57" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 删除foo.lua文件
file.remove(&quot;foo.lua&quot;)
</code></pre>
<h4 id="_58"><a name="user-content-_58" href="#_58" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_close">file.close()</a></p>
<p><a id="fl_open"></a></p>
<h2 id="fileopen"><a name="user-content-fileopen" href="#fileopen" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.open()</h2>
<h4 id="_59"><a name="user-content-_59" href="#_59" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>打开文件。</p>
<h4 id="_60"><a name="user-content-_60" href="#_60" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.open(filename, mode)</p>
<h4 id="_61"><a name="user-content-_61" href="#_61" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>filename: 需要打开的文件，不支持文件夹。<br /><br />
mode:<br /><br />
&ldquo;r&rdquo;: read mode (the default)<br /><br />
&ldquo;w&rdquo;: write mode<br /><br />
&ldquo;a&rdquo;: append mode<br /><br />
&ldquo;r+&rdquo;: update mode, 文件内的数据保留<br /><br />
&ldquo;w+&rdquo;: update mode, 文件内的数据清除<br /><br />
&ldquo;a+&rdquo;: append update mode, 文件内的数据保留，要写入的数据仅能增加在文件最后。</p>
<h4 id="_62"><a name="user-content-_62" href="#_62" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_63"><a name="user-content-_63" href="#_63" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 打开'init.lua'，并打印文件的第一行。
file.open(&quot;init.lua&quot;, &quot;r&quot;)
print(file.readline())
file.close()
</code></pre>
<h4 id="_64"><a name="user-content-_64" href="#_64" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_close">file.close()</a><br /><br />
<strong>-</strong> <a href="#fl_readline">file.readline()</a></p>
<p><a id="fl_close"></a></p>
<h2 id="fileclose"><a name="user-content-fileclose" href="#fileclose" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.close()</h2>
<h4 id="_65"><a name="user-content-_65" href="#_65" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>关闭文件。</p>
<h4 id="_66"><a name="user-content-_66" href="#_66" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.close()</p>
<h4 id="_67"><a name="user-content-_67" href="#_67" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_68"><a name="user-content-_68" href="#_68" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_69"><a name="user-content-_69" href="#_69" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 打开'init.lua'，并打印文件的第一行，然后关闭文件。
file.open(&quot;init.lua&quot;, &quot;r&quot;)
print(file.readline())
file.close()
</code></pre>
<h4 id="_70"><a name="user-content-_70" href="#_70" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_readline">file.readline()</a></p>
<p><a id="fl_readline"></a></p>
<h2 id="filereadline"><a name="user-content-filereadline" href="#filereadline" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.readline()</h2>
<h4 id="_71"><a name="user-content-_71" href="#_71" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>读取文件的一行。</p>
<h4 id="_72"><a name="user-content-_72" href="#_72" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.readline()</p>
<h4 id="_73"><a name="user-content-_73" href="#_73" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_74"><a name="user-content-_74" href="#_74" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>逐行返回文件内容。返回值末尾包含EOL(&lsquo;\n&rsquo;)<br /><br />
如果读到EOF返回nil。</p>
<h4 id="_75"><a name="user-content-_75" href="#_75" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 打开'init.lua'，读取并打印文件的第一行，然后关闭文件。
file.open(&quot;init.lua&quot;, &quot;r&quot;)
print(file.readline())
file.close()
</code></pre>
<h4 id="_76"><a name="user-content-_76" href="#_76" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_close">file.close()</a></p>
<p><a id="fl_writeline"></a></p>
<h2 id="filewriteline"><a name="user-content-filewriteline" href="#filewriteline" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.writeline()</h2>
<h4 id="_77"><a name="user-content-_77" href="#_77" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>向文件写入一行，行末尾增加&rsquo;\n&rsquo;。</p>
<h4 id="_78"><a name="user-content-_78" href="#_78" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.writeline(string)</p>
<h4 id="_79"><a name="user-content-_79" href="#_79" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>string: 需要写入的字符串</p>
<h4 id="_80"><a name="user-content-_80" href="#_80" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>true: 写入成功<br /><br />
nil: 写入失败</p>
<h4 id="_81"><a name="user-content-_81" href="#_81" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 以'a+'的模式打开'init.lua'
file.open(&quot;init.lua&quot;, &quot;a+&quot;)
-- 将'foo bar'写到文件的末尾
file.writeline('foo bar')
file.close()
</code></pre>
<h4 id="_82"><a name="user-content-_82" href="#_82" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_write">file.write()</a></p>
<p><a id="fl_write"></a></p>
<h2 id="filewrite"><a name="user-content-filewrite" href="#filewrite" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.write()</h2>
<h4 id="_83"><a name="user-content-_83" href="#_83" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>向文件写入字符串。</p>
<h4 id="_84"><a name="user-content-_84" href="#_84" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.write(string)</p>
<h4 id="_85"><a name="user-content-_85" href="#_85" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>string: 需要写入的字符串</p>
<h4 id="_86"><a name="user-content-_86" href="#_86" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>true: 写入成功<br /><br />
nil: 写入失败</p>
<h4 id="_87"><a name="user-content-_87" href="#_87" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 以'a+'的模式打开'init.lua'
file.open(&quot;init.lua&quot;, &quot;a+&quot;)
-- 将'foo bar'写到文件的末尾
file.writeline('foo bar')
file.close()
</code></pre>
<h4 id="_88"><a name="user-content-_88" href="#_88" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_writeline">file.writeline()</a></p>
<p><a id="fl_flush"></a></p>
<h2 id="fileflush"><a name="user-content-fileflush" href="#fileflush" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.flush()</h2>
<h4 id="_89"><a name="user-content-_89" href="#_89" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>清空缓存写入文件。</p>
<h4 id="_90"><a name="user-content-_90" href="#_90" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.flush()</p>
<h4 id="_91"><a name="user-content-_91" href="#_91" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_92"><a name="user-content-_92" href="#_92" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_93"><a name="user-content-_93" href="#_93" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 以'a+'的模式打开'init.lua'
file.open(&quot;init.lua&quot;, &quot;a+&quot;)
-- 将'foo bar'写到文件的末尾
file.write('foo bar')
file.flush()
file.close()
</code></pre>
<h4 id="_94"><a name="user-content-_94" href="#_94" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_writeline">file.writeline()</a></p>
<p><a id="fl_seek"></a></p>
<h2 id="fileseek"><a name="user-content-fileseek" href="#fileseek" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.seek()</h2>
<h4 id="_95"><a name="user-content-_95" href="#_95" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置或者读取文件的读写位置，位置等于whence加上offset的值。</p>
<h4 id="_96"><a name="user-content-_96" href="#_96" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.seek(whence, offset)</p>
<h4 id="_97"><a name="user-content-_97" href="#_97" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>whence:<br /><br />
&ldquo;set&rdquo;: base is position 0 (beginning of the file);<br /><br />
&ldquo;cur&rdquo;: base is current position;(default value)<br /><br />
&ldquo;end&rdquo;: base is end of file;<br /><br />
offset: default 0</p>
<h4 id="_98"><a name="user-content-_98" href="#_98" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>成功: 返回当前的文件读写位置<br /><br />
失败: 返回nil</p>
<h4 id="_99"><a name="user-content-_99" href="#_99" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 以'a+'的模式打开'init.lua'
file.open(&quot;init.lua&quot;, &quot;a+&quot;)
-- 将'foo bar'写到文件的末尾
file.write('foo bar')
file.flush()
--将文件读写位置设置在文件开始
file.seek(&quot;set&quot;)
--读取并打印文件的第一行
print(file.readline())
file.close()
</code></pre>
<h4 id="_100"><a name="user-content-_100" href="#_100" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_open">file.open()</a><br /><br />
<strong>-</strong> <a href="#fl_writeline">file.writeline()</a></p>
<p><a id="fl_list"></a></p>
<h2 id="filelist"><a name="user-content-filelist" href="#filelist" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>file.list()</h2>
<h4 id="_101"><a name="user-content-_101" href="#_101" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>显示所有文件。</p>
<h4 id="_102"><a name="user-content-_102" href="#_102" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>file.list()</p>
<h4 id="_103"><a name="user-content-_103" href="#_103" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_104"><a name="user-content-_104" href="#_104" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>返回包含{文件名：文件大小}的lua table</p>
<h4 id="_105"><a name="user-content-_105" href="#_105" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> l = file.list();
for k,v in pairs(l) do
print(&quot;name:&quot;..k..&quot;, size:&quot;..v)
end
</code></pre>
<h4 id="_106"><a name="user-content-_106" href="#_106" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#fl_remove">file.remove()</a></p>
<h1 id="wifi"><a name="user-content-wifi" href="#wifi" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi模块</h1>
<h2 id="_107"><a name="user-content-_107" href="#_107" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>常量</h2>
<p>wifi.STATION, wifi.SOFTAP, wifi.STATIONAP</p>
<p><a id="wf_setmode"></a></p>
<h2 id="wifisetmodemode"><a name="user-content-wifisetmodemode" href="#wifisetmodemode" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.setmode(mode)</h2>
<h4 id="_108"><a name="user-content-_108" href="#_108" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置wifi的工作模式。</p>
<h4 id="_109"><a name="user-content-_109" href="#_109" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.setmode(mode)</p>
<h4 id="_110"><a name="user-content-_110" href="#_110" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>mode: 取值为：wifi.STATION, wifi.SOFTAP or wifi.STATIONAP</p>
<h4 id="_111"><a name="user-content-_111" href="#_111" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>返回设置之后的mode值</p>
<h4 id="_112"><a name="user-content-_112" href="#_112" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.setmode(wifi.STATION)
</code></pre>
<h4 id="_113"><a name="user-content-_113" href="#_113" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wf_getmode">wifi.getmode()</a></p>
<p><a id="wf_getmode"></a></p>
<h2 id="wifigetmodemode"><a name="user-content-wifigetmodemode" href="#wifigetmodemode" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.getmode(mode)</h2>
<h4 id="_114"><a name="user-content-_114" href="#_114" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>获取wifi的工作模式。</p>
<h4 id="_115"><a name="user-content-_115" href="#_115" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.getmode()</p>
<h4 id="_116"><a name="user-content-_116" href="#_116" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_117"><a name="user-content-_117" href="#_117" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>返回wifi的工作模式</p>
<h4 id="_118"><a name="user-content-_118" href="#_118" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> print(wifi.getmode())
</code></pre>
<h4 id="_119"><a name="user-content-_119" href="#_119" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wf_setmode">wifi.setmode()</a></p>
<p><a id="wf_startsmart"></a></p>
<h2 id="wifistartsmart"><a name="user-content-wifistartsmart" href="#wifistartsmart" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.startsmart()</h2>
<h4 id="_120"><a name="user-content-_120" href="#_120" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>开始自动配置，如果配置成功自动设置ssid和密码。</p>
<h4 id="_121"><a name="user-content-_121" href="#_121" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.startsmart(channel, function succeed_callback())</p>
<h4 id="_122"><a name="user-content-_122" href="#_122" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>channel: 1~13, 启动寻找的初始频段，如果为nil默认值为6频段。每个频段搜寻20s。<br /><br />
succeed_callback: 配置成功的回调函数，配置成功并连接至AP后调用此函数。</p>
<h4 id="_123"><a name="user-content-_123" href="#_123" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_124"><a name="user-content-_124" href="#_124" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.startsmart(6, cb())
</code></pre>
<h4 id="_125"><a name="user-content-_125" href="#_125" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wf_stopsmart">wifi.stopsmart()</a></p>
<p><a id="wf_stopsmart"></a></p>
<h2 id="wifistopsmart"><a name="user-content-wifistopsmart" href="#wifistopsmart" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.stopsmart()</h2>
<h4 id="_126"><a name="user-content-_126" href="#_126" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>停止配置。</p>
<h4 id="_127"><a name="user-content-_127" href="#_127" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.stopsmart()</p>
<h4 id="_128"><a name="user-content-_128" href="#_128" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_129"><a name="user-content-_129" href="#_129" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_130"><a name="user-content-_130" href="#_130" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.stopsmart()
</code></pre>
<h4 id="_131"><a name="user-content-_131" href="#_131" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wf_startsmart">wifi.startsmart()</a></p>
<h1 id="wifista"><a name="user-content-wifista" href="#wifista" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta 子模块</h1>
<p><a id="ws_config"></a></p>
<h2 id="wifistaconfig"><a name="user-content-wifistaconfig" href="#wifistaconfig" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.config()</h2>
<h4 id="_132"><a name="user-content-_132" href="#_132" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置station模式下的ssid和password。</p>
<h4 id="_133"><a name="user-content-_133" href="#_133" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.config(ssid, password)</p>
<h4 id="_134"><a name="user-content-_134" href="#_134" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>ssid: 字符串，长度小于32字节。<br /><br />
password: 字符串，长度小于64字节。</p>
<h4 id="_135"><a name="user-content-_135" href="#_135" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_136"><a name="user-content-_136" href="#_136" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.sta.config(&quot;myssid&quot;,&quot;mypassword&quot;)
</code></pre>
<h4 id="_137"><a name="user-content-_137" href="#_137" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_connect">wifi.sta.connect()</a><br /><br />
<strong>-</strong> <a href="#ws_disconnect">wifi.sta.disconnect()</a></p>
<p><a id="ws_connect"></a></p>
<h2 id="wifistaconnect"><a name="user-content-wifistaconnect" href="#wifistaconnect" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.connect()</h2>
<h4 id="_138"><a name="user-content-_138" href="#_138" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>station模式下连接AP。</p>
<h4 id="_139"><a name="user-content-_139" href="#_139" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.connect()</p>
<h4 id="_140"><a name="user-content-_140" href="#_140" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_141"><a name="user-content-_141" href="#_141" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_142"><a name="user-content-_142" href="#_142" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.sta.connect()
</code></pre>
<h4 id="_143"><a name="user-content-_143" href="#_143" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_disconnect">wifi.sta.disconnect()</a><br /><br />
<strong>-</strong> <a href="#ws_config">wifi.sta.config()</a></p>
<p><a id="ws_disconnect"></a></p>
<h2 id="wifistadisconnect"><a name="user-content-wifistadisconnect" href="#wifistadisconnect" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.disconnect()</h2>
<h4 id="_144"><a name="user-content-_144" href="#_144" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>station模式下与AP断开连接。</p>
<h4 id="_145"><a name="user-content-_145" href="#_145" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.disconnect()</p>
<h4 id="_146"><a name="user-content-_146" href="#_146" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_147"><a name="user-content-_147" href="#_147" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_148"><a name="user-content-_148" href="#_148" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.sta.disconnect()
</code></pre>
<h4 id="_149"><a name="user-content-_149" href="#_149" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_config">wifi.sta.config()</a><br /><br />
<strong>-</strong> <a href="#ws_connect">wifi.sta.connect()</a></p>
<p><a id="ws_autoconnect"></a></p>
<h2 id="wifistaautoconnect"><a name="user-content-wifistaautoconnect" href="#wifistaautoconnect" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.autoconnect()</h2>
<h4 id="_150"><a name="user-content-_150" href="#_150" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>station模式下自动连接。</p>
<h4 id="_151"><a name="user-content-_151" href="#_151" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.autoconnect(auto)</p>
<h4 id="_152"><a name="user-content-_152" href="#_152" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>auto: 0：取消自动连接，1：使能自动连接。</p>
<h4 id="_153"><a name="user-content-_153" href="#_153" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_154"><a name="user-content-_154" href="#_154" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.sta.autoconnect()
</code></pre>
<h4 id="_155"><a name="user-content-_155" href="#_155" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_config">wifi.sta.config()</a><br /><br />
<strong>-</strong> <a href="#ws_connect">wifi.sta.connect()</a><br /><br />
<strong>-</strong> <a href="#ws_disconnect">wifi.sta.disconnect()</a></p>
<p><a id="ws_getip"></a></p>
<h2 id="wifistagetip"><a name="user-content-wifistagetip" href="#wifistagetip" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.getip()</h2>
<h4 id="_156"><a name="user-content-_156" href="#_156" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>station模式下获取ip</p>
<h4 id="_157"><a name="user-content-_157" href="#_157" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.getip()</p>
<h4 id="_158"><a name="user-content-_158" href="#_158" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_159"><a name="user-content-_159" href="#_159" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>ip地址字符串，如:&rdquo;192.168.0.111&rdquo;</p>
<h4 id="_160"><a name="user-content-_160" href="#_160" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- print current ip
print(wifi.sta.getip())
</code></pre>
<h4 id="_161"><a name="user-content-_161" href="#_161" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_getmac">wifi.sta.getmac()</a></p>
<p><a id="ws_getmac"></a></p>
<h2 id="wifistagetmac"><a name="user-content-wifistagetmac" href="#wifistagetmac" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.getmac()</h2>
<h4 id="_162"><a name="user-content-_162" href="#_162" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>station模式下获取mac地址。</p>
<h4 id="_163"><a name="user-content-_163" href="#_163" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.getmac()</p>
<h4 id="_164"><a name="user-content-_164" href="#_164" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_165"><a name="user-content-_165" href="#_165" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>mac地址字符串，如:&rdquo;18-33-44-FE-55-BB&rdquo;</p>
<h4 id="_166"><a name="user-content-_166" href="#_166" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 打印当前的mac地址
print(wifi.sta.getmac())
</code></pre>
<h4 id="_167"><a name="user-content-_167" href="#_167" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_getip">wifi.sta.getip()</a></p>
<p><a id="ws_getap"></a></p>
<h2 id="wifistagetap"><a name="user-content-wifistagetap" href="#wifistagetap" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.sta.getap()</h2>
<h4 id="_168"><a name="user-content-_168" href="#_168" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>扫描并列出ap，结果以一个lua table为参数传递给回调函数。</p>
<h4 id="_169"><a name="user-content-_169" href="#_169" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.sta.getap(function(table))</p>
<h4 id="_170"><a name="user-content-_170" href="#_170" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>function(table): 当扫描结束时，调用此回调函数<br /><br />
扫描结果是一个lua table，key为ap的ssid，value为其他信息，格式：authmode,rssi,bssid,channel</p>
<h4 id="_171"><a name="user-content-_171" href="#_171" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_172"><a name="user-content-_172" href="#_172" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- print ap list
function listap(t)
for k,v in pairs(t) do
print(k..&quot; : &quot;..v)
end
end
wifi.sta.getap(listap)
</code></pre>
<h4 id="_173"><a name="user-content-_173" href="#_173" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ws_getip">wifi.sta.getip()</a></p>
<h1 id="wifiap"><a name="user-content-wifiap" href="#wifiap" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.ap 子模块</h1>
<p><a id="wa_config"></a></p>
<h2 id="wifiapconfig"><a name="user-content-wifiapconfig" href="#wifiapconfig" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.ap.config()</h2>
<h4 id="_174"><a name="user-content-_174" href="#_174" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置ap模式下的ssid和password</p>
<h4 id="_175"><a name="user-content-_175" href="#_175" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.ap.config(cfg)</p>
<h4 id="_176"><a name="user-content-_176" href="#_176" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>cfg: 设置AP的lua table</p>
<h4 id="_177"><a name="user-content-_177" href="#_177" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例:</h4>
<pre><code class="lua"> cfg={}
cfg.ssid=&quot;myssid&quot;
cfg.pwd=&quot;mypwd&quot;
wifi.ap.setconfig(cfg)
</code></pre>
<h4 id="_178"><a name="user-content-_178" href="#_178" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_179"><a name="user-content-_179" href="#_179" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.ap.config(ssid, 'password')
</code></pre>
<h4 id="_180"><a name="user-content-_180" href="#_180" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p>
<p><a id="wa_getip"></a></p>
<h2 id="wifiapgetip"><a name="user-content-wifiapgetip" href="#wifiapgetip" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.ap.getip()</h2>
<h4 id="_181"><a name="user-content-_181" href="#_181" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>ap模式下获取ip</p>
<h4 id="_182"><a name="user-content-_182" href="#_182" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.ap.getip()</p>
<h4 id="_183"><a name="user-content-_183" href="#_183" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_184"><a name="user-content-_184" href="#_184" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>ip地址字符串，如:&rdquo;192.168.0.111&rdquo;</p>
<h4 id="_185"><a name="user-content-_185" href="#_185" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.ap.getip()
</code></pre>
<h4 id="_186"><a name="user-content-_186" href="#_186" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wa_getmac">wifi.ap.getmac()</a></p>
<p><a id="wa_getmac"></a></p>
<h2 id="wifiapgetmac"><a name="user-content-wifiapgetmac" href="#wifiapgetmac" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>wifi.ap.getmac()</h2>
<h4 id="_187"><a name="user-content-_187" href="#_187" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>ap模式下获取mac地址。</p>
<h4 id="_188"><a name="user-content-_188" href="#_188" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>wifi.ap.getmac()</p>
<h4 id="_189"><a name="user-content-_189" href="#_189" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_190"><a name="user-content-_190" href="#_190" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>mac地址字符串，如:&rdquo;1A-33-44-FE-55-BB&rdquo;</p>
<h4 id="_191"><a name="user-content-_191" href="#_191" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> wifi.ap.getmac()
</code></pre>
<h4 id="_192"><a name="user-content-_192" href="#_192" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#wa_getip">wifi.ap.getip()</a></p>
<h1 id="timer"><a name="user-content-timer" href="#timer" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>timer 模块</h1>
<p><a id="tm_delay"></a></p>
<h2 id="tmrdelay"><a name="user-content-tmrdelay" href="#tmrdelay" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>tmr.delay()</h2>
<h4 id="_193"><a name="user-content-_193" href="#_193" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>延迟us微秒。</p>
<h4 id="_194"><a name="user-content-_194" href="#_194" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>tmr.dealy(us)</p>
<h4 id="_195"><a name="user-content-_195" href="#_195" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>us: 延迟时间，单位：微秒</p>
<h4 id="_196"><a name="user-content-_196" href="#_196" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_197"><a name="user-content-_197" href="#_197" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- delay 100us
tmr.delay(100)
</code></pre>
<h4 id="_198"><a name="user-content-_198" href="#_198" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#tm_now">tmr.now()</a></p>
<p><a id="tm_now"></a></p>
<h2 id="tmrnow"><a name="user-content-tmrnow" href="#tmrnow" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>tmr.now()</h2>
<h4 id="_199"><a name="user-content-_199" href="#_199" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>返回系统计数器的当前值，uint32，单位：us。</p>
<h4 id="_200"><a name="user-content-_200" href="#_200" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>tmr.now()</p>
<h4 id="_201"><a name="user-content-_201" href="#_201" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_202"><a name="user-content-_202" href="#_202" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>uint32: value of counter</p>
<h4 id="_203"><a name="user-content-_203" href="#_203" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 打印计数器的当前值。
print(tmr.now())
</code></pre>
<h4 id="_204"><a name="user-content-_204" href="#_204" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#tm_delay">tmr.delay()</a></p>
<p><a id="tm_alarm"></a></p>
<h2 id="tmralarm"><a name="user-content-tmralarm" href="#tmralarm" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>tmr.alarm()</h2>
<h4 id="_205"><a name="user-content-_205" href="#_205" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>闹钟函数。<br /><br />
<strong>-注意:</strong> 只能允许存在一个闹钟，如果在调用tmr.stop()之前重复调用tmr.alarm()，以最后一次设置的为准，此前定义的闹钟都将失效。</p>
<h4 id="_206"><a name="user-content-_206" href="#_206" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>tmr.alarm(interval, repeat, function do())</p>
<h4 id="_207"><a name="user-content-_207" href="#_207" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>Interval: 定时时间，单位：毫秒。<br /><br />
repeat: 0：一次性闹钟；1：重复闹钟。<br /><br />
function do(): 定时器到时回调函数。</p>
<h4 id="_208"><a name="user-content-_208" href="#_208" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_209"><a name="user-content-_209" href="#_209" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 每1000ms输出一个hello world
tmr.alarm(1000, 1, function() print(&quot;hello world&quot;) end )
</code></pre>
<h4 id="_210"><a name="user-content-_210" href="#_210" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#tm_now">tmr.now()</a></p>
<p><a id="tm_stop"></a></p>
<h2 id="tmrstop"><a name="user-content-tmrstop" href="#tmrstop" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>tmr.stop()</h2>
<h4 id="_211"><a name="user-content-_211" href="#_211" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>停止闹钟功能。<br /></p>
<h4 id="_212"><a name="user-content-_212" href="#_212" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>tmr.stop()</p>
<h4 id="_213"><a name="user-content-_213" href="#_213" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil.</p>
<h4 id="_214"><a name="user-content-_214" href="#_214" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_215"><a name="user-content-_215" href="#_215" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 每隔1000ms打印hello world
tmr.alarm(1000, 1, function() print(&quot;hello world&quot;) end )
-- 其它代码
-- 停止闹钟
tmr.stop()
</code></pre>
<h4 id="_216"><a name="user-content-_216" href="#_216" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#tm_now">tmr.now()</a></p>
<h1 id="gpio"><a name="user-content-gpio" href="#gpio" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>GPIO 模块</h1>
<h2 id="_217"><a name="user-content-_217" href="#_217" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>常量</h2>
<p>gpio.OUTPUT, gpio.INPUT, gpio.INT, gpio.HIGH, gpio.LOW</p>
<p><a id="io_mode"></a></p>
<h2 id="gpiomode"><a name="user-content-gpiomode" href="#gpiomode" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>gpio.mode()</h2>
<h4 id="_218"><a name="user-content-_218" href="#_218" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>将pin初始化为GPIO并设置输入输出模式。</p>
<h4 id="_219"><a name="user-content-_219" href="#_219" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>gpio.mode(pin, mode)</p>
<h4 id="_220"><a name="user-content-_220" href="#_220" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
mode: 取值为：gpio.OUTPUT or gpio.INPUT, or gpio.INT(中断模式)</p>
<h4 id="_221"><a name="user-content-_221" href="#_221" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_222"><a name="user-content-_222" href="#_222" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 将GPIO0设置为输出模式
gpio.mode(0, gpio.OUTPUT)
</code></pre>
<h4 id="_223"><a name="user-content-_223" href="#_223" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#io_read">gpio.read()</a></p>
<p><a id="io_read"></a></p>
<h2 id="gpioread"><a name="user-content-gpioread" href="#gpioread" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>gpio.read()</h2>
<h4 id="_224"><a name="user-content-_224" href="#_224" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>读取管脚电平高低。</p>
<h4 id="_225"><a name="user-content-_225" href="#_225" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>gpio.read(pin)</p>
<h4 id="_226"><a name="user-content-_226" href="#_226" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_227"><a name="user-content-_227" href="#_227" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>number:0：低电平, 1：高电平。</p>
<h4 id="_228"><a name="user-content-_228" href="#_228" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 读取GPIO0的电平
gpio.read(0)
</code></pre>
<h4 id="_229"><a name="user-content-_229" href="#_229" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#io_mode">gpio.mode()</a></p>
<p><a id="io_write"></a></p>
<h2 id="gpiowrite"><a name="user-content-gpiowrite" href="#gpiowrite" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>gpio.write()</h2>
<h4 id="_230"><a name="user-content-_230" href="#_230" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置管脚电平</p>
<h4 id="_231"><a name="user-content-_231" href="#_231" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>gpio.write(pin)</p>
<h4 id="_232"><a name="user-content-_232" href="#_232" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
level: gpio.HIGH or gpio.LOW</p>
<h4 id="_233"><a name="user-content-_233" href="#_233" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_234"><a name="user-content-_234" href="#_234" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 设置GPIP1为输出模式，并将输出电平设置为高
pin=1
gpio.mode(pin, gpio.OUTPUT)
gpio.write(pin, gpio.HIGH)
</code></pre>
<h4 id="_235"><a name="user-content-_235" href="#_235" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#io_mode">gpio.mode()</a><br /><br />
<strong>-</strong> <a href="#io_read">gpio.read()</a></p>
<p><a id="io_trig"></a></p>
<h2 id="gpiotrig"><a name="user-content-gpiotrig" href="#gpiotrig" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>gpio.trig()</h2>
<h4 id="_236"><a name="user-content-_236" href="#_236" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置管脚中断模式的回调函数。</p>
<h4 id="_237"><a name="user-content-_237" href="#_237" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>gpio.trig(pin, type, function(level))</p>
<h4 id="_238"><a name="user-content-_238" href="#_238" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
type: 取值为&rdquo;up&rdquo;, &ldquo;down&rdquo;, &ldquo;both&rdquo;, &ldquo;low&rdquo;, &ldquo;high&rdquo;, 分别代表上升沿、下降沿、双边沿、低电平、高电平触发方式。<br /><br />
function(level): 中断触发的回调函数，GPIO的电平作为输入参数。如果此处没有定义函数，则使用之前定义的回调函数。</p>
<h4 id="_239"><a name="user-content-_239" href="#_239" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_240"><a name="user-content-_240" href="#_240" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 使用GPIO0检测输入脉冲宽度
pulse0 = 0
du = 0
gpio.mode(0,gpio.INT)
function pin0cb(level)
du = tmr.now() – pulse0
print(du)
pulse0 = tmr.now()
if level == 1 then gpio.trig(0, &quot;down &quot;) else gpio.trig(0, &quot;up &quot;) end
end
gpio.trig(0, &quot;down &quot;,pin0cb)
</code></pre>
<h4 id="_241"><a name="user-content-_241" href="#_241" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#io_mode">gpio.mode()</a><br /><br />
<strong>-</strong> <a href="#io_write">gpio.write()</a></p>
<h1 id="pwm"><a name="user-content-pwm" href="#pwm" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>PWM模块</h1>
<p><a id="pw_setup"></a></p>
<h2 id="pwmsetup"><a name="user-content-pwmsetup" href="#pwmsetup" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.setup()</h2>
<h4 id="_242"><a name="user-content-_242" href="#_242" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置管脚为pwm模式，最多支持6个pwm。</p>
<h4 id="_243"><a name="user-content-_243" href="#_243" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.setup(pin, clock, duty)</p>
<h4 id="_244"><a name="user-content-_244" href="#_244" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
clock: 1~500, pwm频率<br /><br />
duty: 0~100, pwm占空比，百分比表示。</p>
<h4 id="_245"><a name="user-content-_245" href="#_245" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_246"><a name="user-content-_246" href="#_246" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 将管脚0设置为pwm输出模式，频率100Hz，占空比50-50
pwm.setup(0, 100, 50)
</code></pre>
<h4 id="_247"><a name="user-content-_247" href="#_247" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_start">pwm.start()</a></p>
<p><a id="pw_close"></a></p>
<h2 id="pwmclose"><a name="user-content-pwmclose" href="#pwmclose" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.close()</h2>
<h4 id="_248"><a name="user-content-_248" href="#_248" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>退出pwm模式。</p>
<h4 id="_249"><a name="user-content-_249" href="#_249" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.close(pin)</p>
<h4 id="_250"><a name="user-content-_250" href="#_250" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_251"><a name="user-content-_251" href="#_251" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_252"><a name="user-content-_252" href="#_252" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> pwm.close(0)
</code></pre>
<h4 id="_253"><a name="user-content-_253" href="#_253" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_start">pwm.start()</a></p>
<p><a id="pw_start"></a></p>
<h2 id="pwmstart"><a name="user-content-pwmstart" href="#pwmstart" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.start()</h2>
<h4 id="_254"><a name="user-content-_254" href="#_254" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>pwm启动，可以在对应的GPIO检测到波形。</p>
<h4 id="_255"><a name="user-content-_255" href="#_255" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.start(pin)</p>
<h4 id="_256"><a name="user-content-_256" href="#_256" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_257"><a name="user-content-_257" href="#_257" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_258"><a name="user-content-_258" href="#_258" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> pwm.start(0)
</code></pre>
<h4 id="_259"><a name="user-content-_259" href="#_259" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_stop">pwm.stop()</a></p>
<p><a id="pw_stop"></a></p>
<h2 id="pwmstop"><a name="user-content-pwmstop" href="#pwmstop" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.stop()</h2>
<h4 id="_260"><a name="user-content-_260" href="#_260" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>暂停pwm输出波形。</p>
<h4 id="_261"><a name="user-content-_261" href="#_261" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.stop(pin)</p>
<h4 id="_262"><a name="user-content-_262" href="#_262" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_263"><a name="user-content-_263" href="#_263" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_264"><a name="user-content-_264" href="#_264" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> pwm.stop(0)
</code></pre>
<h4 id="_265"><a name="user-content-_265" href="#_265" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_start">pwm.start()</a></p>
<p><a id="pw_setclock"></a></p>
<h2 id="pwmsetclock"><a name="user-content-pwmsetclock" href="#pwmsetclock" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.setclock()</h2>
<h4 id="_266"><a name="user-content-_266" href="#_266" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置pwm的频率<br /><br />
<strong>-Note:</strong> 设置pwm频率将会同步改变其他pwm输出的频率，当前版本的所有pwm仅支持同一频率输出。</p>
<h4 id="_267"><a name="user-content-_267" href="#_267" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.setclock(pin, clock)</p>
<h4 id="_268"><a name="user-content-_268" href="#_268" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
clock: 1~500, pwm周期</p>
<h4 id="_269"><a name="user-content-_269" href="#_269" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_270"><a name="user-content-_270" href="#_270" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> pwm.setclock(0, 100)
</code></pre>
<h4 id="_271"><a name="user-content-_271" href="#_271" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_getclock">pwm.getclock()</a></p>
<p><a id="pw_getclock"></a></p>
<h2 id="pwmgetclock"><a name="user-content-pwmgetclock" href="#pwmgetclock" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.getclock()</h2>
<h4 id="_272"><a name="user-content-_272" href="#_272" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>获取pin的pwm工作频率</p>
<h4 id="_273"><a name="user-content-_273" href="#_273" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.getclock(pin)</p>
<h4 id="_274"><a name="user-content-_274" href="#_274" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_275"><a name="user-content-_275" href="#_275" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>number:pin的pwm工作频率</p>
<h4 id="_276"><a name="user-content-_276" href="#_276" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> print(pwm.getclock(0))
</code></pre>
<h4 id="_277"><a name="user-content-_277" href="#_277" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_setclock">pwm.setclock()</a></p>
<p><a id="pw_setduty"></a></p>
<h2 id="pwmsetduty"><a name="user-content-pwmsetduty" href="#pwmsetduty" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.setduty()</h2>
<h4 id="_278"><a name="user-content-_278" href="#_278" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置pin的占空比。</p>
<h4 id="_279"><a name="user-content-_279" href="#_279" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.setduty(pin, duty)</p>
<h4 id="_280"><a name="user-content-_280" href="#_280" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号<br /><br />
duty: 0~100, pwm的占空比，以百分数表示</p>
<h4 id="_281"><a name="user-content-_281" href="#_281" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_282"><a name="user-content-_282" href="#_282" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> pwm.setduty(0, 50)
</code></pre>
<h4 id="_283"><a name="user-content-_283" href="#_283" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_getduty">pwm.getduty()</a></p>
<p><a id="pw_getduty"></a></p>
<h2 id="pwmgetduty"><a name="user-content-pwmgetduty" href="#pwmgetduty" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>pwm.getduty()</h2>
<h4 id="_284"><a name="user-content-_284" href="#_284" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>获取pin的pwm占空比。</p>
<h4 id="_285"><a name="user-content-_285" href="#_285" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>pwm.getduty(pin)</p>
<h4 id="_286"><a name="user-content-_286" href="#_286" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>pin: 0~11, IO编号</p>
<h4 id="_287"><a name="user-content-_287" href="#_287" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_288"><a name="user-content-_288" href="#_288" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- D0 连接绿色led
-- D1 连接蓝色led
-- D2 连接红色led
pwm.setup(0,500,50)
pwm.setup(1,500,50)
pwm.setup(2,500,50)
pwm.start(0)
pwm.start(1)
pwm.start(2)
function led(r,g,b)
pwm.setduty(0,g)
pwm.setduty(1,b)
pwm.setduty(2,r)
end
led(50,0,0) -- led显示红色
led(0,0,50) -- led显示蓝色
</code></pre>
<h4 id="_289"><a name="user-content-_289" href="#_289" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#pw_setduty">pwm.setduty()</a></p>
<h1 id="net"><a name="user-content-net" href="#net" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>net 模块</h1>
<h2 id="_290"><a name="user-content-_290" href="#_290" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>常量</h2>
<p>net.TCP, net.UDP</p>
<p><a id="nt_createServer"></a></p>
<h2 id="netcreateserver"><a name="user-content-netcreateserver" href="#netcreateserver" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>net.createServer()</h2>
<h4 id="_291"><a name="user-content-_291" href="#_291" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>创建一个server。</p>
<h4 id="_292"><a name="user-content-_292" href="#_292" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>net.createServer(type, secure)</p>
<h4 id="_293"><a name="user-content-_293" href="#_293" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>type: 取值为：net.TCP 或者 net.UDP<br /><br />
secure: 设置为true或者false, true代表安全连接，false代表普通连接。</p>
<h4 id="_294"><a name="user-content-_294" href="#_294" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>net.server子模块</p>
<h4 id="_295"><a name="user-content-_295" href="#_295" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> net.createServer(net.TCP, true)
</code></pre>
<h4 id="_296"><a name="user-content-_296" href="#_296" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createConnection">net.createConnection()</a></p>
<p><a id="nt_createConnection"></a></p>
<h2 id="netcreateconnection"><a name="user-content-netcreateconnection" href="#netcreateconnection" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>net.createConnection()</h2>
<h4 id="_297"><a name="user-content-_297" href="#_297" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>创建一个client。</p>
<h4 id="_298"><a name="user-content-_298" href="#_298" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>net.createConnection(type, secure)</p>
<h4 id="_299"><a name="user-content-_299" href="#_299" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>type: 取值为：net.TCP 或者 net.UDP<br /><br />
secure: 设置为true或者false, true代表安全连接，false代表普通连接。</p>
<h4 id="_300"><a name="user-content-_300" href="#_300" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>net.server子模块</p>
<h4 id="_301"><a name="user-content-_301" href="#_301" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> net.createConnection(net.UDP, false)
</code></pre>
<h4 id="_302"><a name="user-content-_302" href="#_302" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<h1 id="netserver"><a name="user-content-netserver" href="#netserver" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>net.server 子模块</h1>
<p><a id="ns_listen"></a></p>
<h2 id="listen"><a name="user-content-listen" href="#listen" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>listen()</h2>
<h4 id="_303"><a name="user-content-_303" href="#_303" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>侦听指定ip地址的端口。</p>
<h4 id="_304"><a name="user-content-_304" href="#_304" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>net.server.listen(port,[ip],function(net.socket))</p>
<h4 id="_305"><a name="user-content-_305" href="#_305" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>port: 端口号<br /><br />
ip:ip地址字符串，可以省略<br /><br />
function(net.socket): 连接创建成功的回调函数，可以作为参数传给调用函数。</p>
<h4 id="_306"><a name="user-content-_306" href="#_306" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_307"><a name="user-content-_307" href="#_307" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 创建一个server
sv=net.createServer(net.TCP, false)
-- server侦听端口80，如果收到数据将数据打印至控制台，并向远端发送‘hello world’
sv:listen(80,function(c)
c:on(&quot;receive&quot;, function(sck, pl) print(pl) end)
c:send(&quot;hello world&quot;)
end)
</code></pre>
<h4 id="_308"><a name="user-content-_308" href="#_308" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<p><a id="ns_close"></a></p>
<h2 id="close"><a name="user-content-close" href="#close" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>close()</h2>
<h4 id="_309"><a name="user-content-_309" href="#_309" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>关闭server</p>
<h4 id="_310"><a name="user-content-_310" href="#_310" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>net.server.close()</p>
<h4 id="_311"><a name="user-content-_311" href="#_311" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_312"><a name="user-content-_312" href="#_312" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_313"><a name="user-content-_313" href="#_313" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> -- 创建server
sv=net.createServer(net.TCP, false)
-- 关闭server
sv:close()
</code></pre>
<h4 id="_314"><a name="user-content-_314" href="#_314" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<h1 id="netsocket"><a name="user-content-netsocket" href="#netsocket" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>net.socket 子模块</h1>
<p><a id="nk_connect"></a></p>
<h2 id="connect"><a name="user-content-connect" href="#connect" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>connect()</h2>
<h4 id="_315"><a name="user-content-_315" href="#_315" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>连接至远端。</p>
<h4 id="_316"><a name="user-content-_316" href="#_316" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>connect(port, ip)</p>
<h4 id="_317"><a name="user-content-_317" href="#_317" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>port: 端口号<br /><br />
ip: ip地址字符串</p>
<h4 id="_318"><a name="user-content-_318" href="#_318" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_319"><a name="user-content-_319" href="#_319" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nk_on">net.socket:on()</a></p>
<p><a id="nk_send"></a></p>
<h2 id="send"><a name="user-content-send" href="#send" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>send()</h2>
<h4 id="_320"><a name="user-content-_320" href="#_320" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>通过连接向远端发送数据。</p>
<h4 id="_321"><a name="user-content-_321" href="#_321" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>send(string, function(sent))</p>
<h4 id="_322"><a name="user-content-_322" href="#_322" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>string: 待发送的字符串<br /><br />
function(sent): 发送字符串后的回调函数。</p>
<h4 id="_323"><a name="user-content-_323" href="#_323" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_324"><a name="user-content-_324" href="#_324" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nk_on">net.socket:on()</a></p>
<p><a id="nk_on"></a></p>
<h2 id="on"><a name="user-content-on" href="#on" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>on()</h2>
<h4 id="_325"><a name="user-content-_325" href="#_325" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>向事件注册回调函数。</p>
<h4 id="_326"><a name="user-content-_326" href="#_326" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>on(event, function cb())</p>
<h4 id="_327"><a name="user-content-_327" href="#_327" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>event: 字符串，取值为: &ldquo;connection&rdquo;, &ldquo;reconnection&rdquo;, &ldquo;disconnection&rdquo;, &ldquo;receive&rdquo;, &ldquo;sent&rdquo;<br /><br />
function cb(net.socket, [string]): 回调函数。第一个参数是socket.<br /><br />
如果事件是&rdquo;receive&rdquo;, 第二个参数则为接收到的字符串。</p>
<h4 id="_328"><a name="user-content-_328" href="#_328" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_329"><a name="user-content-_329" href="#_329" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> sk=net.createConnection(net.TCP, false)
sk:on(&quot;receive&quot;, function(sck, c) print(c) end )
sk:connect(80,&quot;192.168.0.66&quot;)
sk:send(&quot;GET / HTTP/1.1\r\nHost: 192.168.0.66\r\nConnection: keep-alive\r\nAccept: */*\r\n\r\n&quot;)
</code></pre>
<h4 id="_330"><a name="user-content-_330" href="#_330" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<p><a id="nk_close"></a></p>
<h2 id="close_1"><a name="user-content-close_1" href="#close_1" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>close()</h2>
<h4 id="_331"><a name="user-content-_331" href="#_331" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>关闭socket。</p>
<h4 id="_332"><a name="user-content-_332" href="#_332" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>close()</p>
<h4 id="_333"><a name="user-content-_333" href="#_333" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>nil</p>
<h4 id="_334"><a name="user-content-_334" href="#_334" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_335"><a name="user-content-_335" href="#_335" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<p><a id="nk_dns"></a></p>
<h2 id="dns"><a name="user-content-dns" href="#dns" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>dns()</h2>
<h4 id="_336"><a name="user-content-_336" href="#_336" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>获取当前域的ip</p>
<h4 id="_337"><a name="user-content-_337" href="#_337" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>dns(domain, function(net.socket, ip))</p>
<h4 id="_338"><a name="user-content-_338" href="#_338" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>domain: 当前域的名称<br /><br />
function (net.socket, ip): 回调函数。第一个参数是socket，第二个参数是当前域的ip字符串。</p>
<h4 id="_339"><a name="user-content-_339" href="#_339" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_340"><a name="user-content-_340" href="#_340" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#nt_createServer">net.createServer()</a></p>
<h1 id="i2c"><a name="user-content-i2c" href="#i2c" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c模块</h1>
<h2 id="_341"><a name="user-content-_341" href="#_341" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>常量</h2>
<p>i2c.SLOW, i2c.TRANSMITTER, i2c. RECEIVER. FAST（400k）模式目前不支持。</p>
<p><a id="ic_setup"></a></p>
<h2 id="i2csetup"><a name="user-content-i2csetup" href="#i2csetup" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.setup()</h2>
<h4 id="_342"><a name="user-content-_342" href="#_342" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>初始化i2c。</p>
<h4 id="_343"><a name="user-content-_343" href="#_343" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.setup(id, pinSDA, pinSCL, speed)</p>
<h4 id="_344"><a name="user-content-_344" href="#_344" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id = 0<br /><br />
pinSDA: 0~11, IO编号<br /><br />
pinSCL: 0~11, IO编号<br /><br />
speed: i2c.SLOW</p>
<h4 id="_345"><a name="user-content-_345" href="#_345" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_346"><a name="user-content-_346" href="#_346" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_read">i2c.read()</a></p>
<p><a id="ic_start"></a></p>
<h2 id="i2cstart"><a name="user-content-i2cstart" href="#i2cstart" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.start()</h2>
<h4 id="_347"><a name="user-content-_347" href="#_347" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>启动i2c传输。</p>
<h4 id="_348"><a name="user-content-_348" href="#_348" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.start(id)</p>
<h4 id="_349"><a name="user-content-_349" href="#_349" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id = 0</p>
<h4 id="_350"><a name="user-content-_350" href="#_350" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_351"><a name="user-content-_351" href="#_351" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_read">i2c.read()</a></p>
<p><a id="ic_stop"></a></p>
<h2 id="i2cstop"><a name="user-content-i2cstop" href="#i2cstop" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.stop()</h2>
<h4 id="_352"><a name="user-content-_352" href="#_352" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>停止i2c传输。</p>
<h4 id="_353"><a name="user-content-_353" href="#_353" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.stop(id)</p>
<h4 id="_354"><a name="user-content-_354" href="#_354" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id = 0</p>
<h4 id="_355"><a name="user-content-_355" href="#_355" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_356"><a name="user-content-_356" href="#_356" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_read">i2c.read()</a></p>
<p><a id="ic_address"></a></p>
<h2 id="i2caddress"><a name="user-content-i2caddress" href="#i2caddress" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.address()</h2>
<h4 id="_357"><a name="user-content-_357" href="#_357" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>设置i2c地址以及读写模式。</p>
<h4 id="_358"><a name="user-content-_358" href="#_358" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.address(id, device_addr, direction)</p>
<h4 id="_359"><a name="user-content-_359" href="#_359" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id=0<br /><br />
device_addr: 设备地址。<br /><br />
direction: i2c.TRANSMITTER：写模式；i2c. RECEIVER：读模式。</p>
<h4 id="_360"><a name="user-content-_360" href="#_360" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_361"><a name="user-content-_361" href="#_361" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_read">i2c.read()</a></p>
<p><a id="ic_write"></a></p>
<h2 id="i2cwrite"><a name="user-content-i2cwrite" href="#i2cwrite" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.write()</h2>
<h4 id="_362"><a name="user-content-_362" href="#_362" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>向i2c写数据。数据可以是多个数字, 字符串或者lua table。</p>
<h4 id="_363"><a name="user-content-_363" href="#_363" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.write(id, data1, data2,&hellip;)</p>
<h4 id="_364"><a name="user-content-_364" href="#_364" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id=0<br /><br />
data: 数据可以是多个数字, 字符串或者lua table。</p>
<h4 id="_365"><a name="user-content-_365" href="#_365" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>nil</p>
<h4 id="_366"><a name="user-content-_366" href="#_366" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> i2c.write(0, &quot;hello&quot;, &quot;world&quot;)
</code></pre>
<h4 id="_367"><a name="user-content-_367" href="#_367" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_read">i2c.read()</a></p>
<p><a id="ic_read"></a></p>
<h2 id="i2cread"><a name="user-content-i2cread" href="#i2cread" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>i2c.read()</h2>
<h4 id="_368"><a name="user-content-_368" href="#_368" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>读取len个字节的数据。</p>
<h4 id="_369"><a name="user-content-_369" href="#_369" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>i2c.read(id, len)</p>
<h4 id="_370"><a name="user-content-_370" href="#_370" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id=0<br /><br />
len: 数据长度。</p>
<h4 id="_371"><a name="user-content-_371" href="#_371" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>string:接收到的数据。</p>
<h4 id="_372"><a name="user-content-_372" href="#_372" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>示例</h4>
<pre><code class="lua"> id=0
sda=1
scl=0
-- 初始化i2c, 将pin1设置为sda, 将pin0设置为scl
i2c.setup(id,sda,scl,i2c.SLOW)
-- 用户定义函数:读取地址dev_addr的寄存器reg_addr中的内容。
function read_reg(dev_addr, reg_addr)
i2c.start(id)
i2c.address(id, dev_addr ,i2c.TRANSMITTER)
i2c.write(id,reg_addr)
i2c.stop(id)
i2c.start(id)
i2c.address(id, dev_addr,i2c.RECEIVER)
c=i2c.read(id,1)
i2c.stop(id)
return c
end
-- 读取0x77的寄存器0xAA中的内容。
reg = read_reg(0x77, 0xAA)
pirnt(string.byte(reg))
</code></pre>
<h4 id="_373"><a name="user-content-_373" href="#_373" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href="#ic_write">i2c.write()</a></p>
<h1 id="adc"><a name="user-content-adc" href="#adc" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>adc 模块</h1>
<h2 id="_374"><a name="user-content-_374" href="#_374" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>常量</h2>
<p>无</p>
<p><a id="adc_read"></a></p>
<h2 id="adcread"><a name="user-content-adcread" href="#adcread" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>adc.read()</h2>
<h4 id="_375"><a name="user-content-_375" href="#_375" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>描述</h4>
<p>读取adc的值，esp8266只有一个10bit adc，id为0，最大值1024</p>
<h4 id="_376"><a name="user-content-_376" href="#_376" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>语法</h4>
<p>adc.read(id)</p>
<h4 id="_377"><a name="user-content-_377" href="#_377" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参数</h4>
<p>id = 0<br /></p>
<h4 id="_378"><a name="user-content-_378" href="#_378" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>返回值</h4>
<p>adc 值 10bit，最大1024.</p>
<h4 id="_379"><a name="user-content-_379" href="#_379" class="headeranchor-link" aria-hidden="true"><span class="headeranchor"></span></a>参见</h4>
<p><strong>-</strong> <a href=""></a></p></article></body></html>
Reference in New Issue View Git Blame Copy Permalink