diff --git a/README.md b/README.md index 1f32c6e6..d417e2d2 100644 --- a/README.md +++ b/README.md @@ -1,293 +1,1563 @@ -nodeMcu API说明 -======= -version 0.1 2014-10-11 - up -flash 错误 ----- - 注意：有些模块在烧写之后启动，串口输出 ERROR in flash_read: r=。。。 - 这是因为模块原来的flash内部没有擦除。 - 可使用blank.bin(4k)， - 重复烧入起始地址0x47000, 0x48000, 0x49000, 0x4a000扇区. - 或者生成一个512k大小的blank512k.bin, 内容为全0xFF，从0x00000开始烧入。 - 烧入之后可以正常运行。 +# **nodeMcu API Instruction** # + version 0.1 2014-10-11 + change log： + 2014-11-5 + delete log operation api from node module + add log module + modify wifi module api + modify node.key long_press and short_press default function + key is triged only when key is released + +# Summary +- Easy to access wireless router +- Based on Lua 5.1.4，Developer are supposed to have experience in Lua Program language. +- Try to use Event-Drive programming modal. +- In-side timer，pwm，i2c，net，gpio，wifi module. +- Serial Port BaudRate:74880 +- Re-indexing the 8266 pin，use the index to program gpio，i2c，pwm. +- Index vs Pin-number Table: + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
IO indexESP8266 pinIO indexESP8266 pin
0GPIO128GPIO0
1GPIO139GPIO2
2GPIO1410GPIO4
3GPIO1511GPIO5
4GPIO3
5GPIO1
6GPIO9
7GPIO10
+ + +#Firmware Program +Address +: eagle.app.v6.flash.bin: 0x00000 +: eagle.app.v6.irom0text.bin: 0x10000 +: esp_init_data_default.bin: 0x7c000 +: blank.bin: 0x7e000 + + +#node module + +## node.restart() +Description +: module restart. + +Syntax +: node.restart() + +Parameters +: null + +Returns +: null + +Example +: **** +``` + node.restart(); +``` + +See also +: **-** []() + + +## node.dsleep() +Description +: enter deep sleep mode for us micro seconds，restart when timed out + us: sleep time in micro second + +Syntax +: node.dsleep(us) + Note: This function can only be used in the condition of connecting esp8266 PIN32(rst) and PIN8(XPD_DCDC) together. + +Parameters +: us:sleep time in micro second + +Returns +: null + +Example +: **** +``` + node.dsleep(us); +``` + +See also +: **-** []() + + +## node.chipid() +Description +: return chip identifier + +Syntax +: node.chipid() + +Parameters +: null + +Returns +: number:chip identifier + +Example +: **** +``` + uint32 id = node.chipid(); +``` + +See also +: **-** []() + + +## node.heap() +Description +: return the available RAM size in bytes + +Syntax +: node.heap() + +Parameters +: null + +Returns +: number:system heap size left in bytes + +Example +: **** +``` + uint32 heap_size = node.heap(); +``` + +See also +: **-** []() + + +## node.key() +Description +: define button function. + +Syntax +: node.key(type, function()) + +Parameters +: type: type is either string ”long” or ”short”. long: press the button for 3 seconds, short: press shortly(less than 3 seconds) + function(): user defined function for button. If null, cancling the user defined function, function are initialized to default. + Default function: long：change LED blinking rate, short：reset chip + +Returns +: null + +Example +: +``` + node.key(long, function(){print('hello world')}) +``` + +See also +: **-** []() + + +## node.led() +Description +: setup the on/off time for led + +Syntax +: node.key(type, function()) + +Parameters +: Low: LED off time, 0 for LED keeps on. Unit: milliseconds, time resolution: 80~100ms + High: LED off time. Unit: milliseconds, time resolution: 80~100ms + +Returns +: null + +Example +: **** +``` + //turn led on forever. + node.led(0,null); +``` + +See also +: **-** []() + +#log module + +## log.format() +Description +: format flash for users. + +Syntax +: log.format() + +Parameters +: null + +Returns +: null + +Example +: **** +``` + //record log to init.lua. Call the file after system restart. + log.format() + log.startlog(“init.lua”, 1) + print(“hello world”) + log.stoplog() +``` + +See also +: **-** [log.startlog()](#lg_startlog) +: **-** [log.stoplog()](#lg_stoplog) + + +## log.startlog() +Description +: start to log input + +Syntax +: log.startlog(filename, noparse) + +Parameters +: filename: log file, directories are not supported + noparse: 1 for lua VM doesn’t parse input, 0 for lua VM parse input + +Returns +: null + +Example +: **** +``` + //record log to init.lua. Call the file after system restart. + log.format() + log.startlog(“init.lua”, 1) + print(“hello world”) + log.stoplog() + //At this point, the content of init.lua is “print(“hello world”)”. When system restart, print(“hello world”) are excuted. +``` + +See also +: **-** [log.format()](#lg_format) +: **-** [log.stoplog()](#lg_stoplog) + + +## log.stoplog() +Description +: stop log. + +Syntax +: log.stoplog() + +Parameters +: null + +Returns +: null + +Example +: **** +``` + //record log to init.lua. Call the file after system restart. + log.format() + log.startlog(“init.lua”, 1) + print(“hello world”) + log.stoplog() + //At this point, the content of init.lua is “print(“hello world”)”. When system restart, print(“hello world”) are excuted. +``` + +See also +: **-** [log.format()](#lg_format) +: **-** [log.startlog()](#lg_startlog) + + +## log.open() +Description +: open the log file + +Syntax +: log.open(filename) + +Parameters +: filename: log file, directories are not supported + +Returns +: null + +Example +: **** +``` + //print the first line of 'init.lua' + log.open(“init.lua”) + print(log.readline()) + log.close() +``` + +See also +: **-** [log.close()](#lg_close) +: **-** [log.readline()](#lg_readline) + + +## log.close() +Description +: close the log file which opened before + +Syntax +: log.close() + +Parameters +: null + +Returns +: null + +Example +: **** +``` + //print the first line of 'init.lua' + log.open(“init.lua”) + print(log.readline()) + log.close() +``` + +See also +: **-** [log.open()](#lg_open) +: **-** [log.readline()](#lg_readline) + + +## log.readline() +Description +: read log file which is opened before line by line. + +Syntax +: log.readline() + +Parameters +: null + +Returns +: log file content in string + +Example +: **** +``` + //print the first line of 'init.lua' + log.open(“init.lua”) + print(log.readline()) + log.close() +``` + +See also +: **-** [log.open()](#lg_open) +: **-** [log.close()](#lg_close) -概述 ------- - 支持一键配置 + +## log.list() +Description +: list all files. + +Syntax +: log.list() - 基于Lua 5.1.4，使用者需了解最简单的Lua语法。 +Parameters +: null - 采用事件驱动的编程模型。 +Returns +: null - 内置 timer，pwm，i2c，net，gpio，wifi module。 +Example +: **** +``` + log.list(); +``` - 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。 +See also +: **-** [log.format()](#lg_format) -###目前的编号对应表格： -||*h1*||*h2*||*h3*||*h4*|| -||1||2||3||4|| - IO索引编号 ESP8266实际IO IO索引编号 ESP8266实际IO - 0 GPIO12 8 GPIO0 - 1 GPIO13 9 GPIO2 - 2 GPIO14 10 GPIO4 - 3 GPIO15 11 GPIO5 - 4 GPIO3 - 5 GPIO1 - 6 GPIO9 - 7 GPIO10 +#wifi module +##CONSTANT +: wifi.STATION, wifi.SOFTAP, wifi.STATIONAP -###串口波特率 -9600 + +## wifi.setmode(mode) +Description +: set wifi working mode. -###固件烧写地址： +Syntax +: wifi.setmode(mode) - eagle.app.v6.flash.bin：0x00000 - eagle.app.v6.irom0text.bin：0x10000 - esp_init_data_default.bin：0x7c000 - blank.bin：0x7e000 +Parameters +: mode: value should be: wifi. STATION, wifi.SOFTAP or wifi.STATIONAP - 第一次使用建议将blank512k.bin烧写在地址0x00000 +Returns +: current mode after setup -node module ------- -node.restart() +Example +: **** +``` + wifi.setmode(wifi.STATION) +``` - 描述：重新启动 +See also +: **-** [wifi.getmode()](#wf_getmode) -node.dsleep( us ) - 描述：深度睡眠 us 微秒，时间到之后将重新启动 - us：时间，单位微秒 + +## wifi.getmode(mode) +Description +: get wifi working mode. -node.chipid() +Syntax +: wifi.getmode() - 描述：返回芯片id - 返回：number +Parameters +: null -node.heap() +Returns +: wifi working mode - 描述：返回可用内存 in bytes - 返回：系统heap剩余 +Example +: **** +``` + print(wifi.getmode()) +``` -node.format() +See also +: **-** [wifi.setmode()](#wf_setmode) - 描述：格式化用户flash区 -node.startlog( filename, noparse) + +## wifi.startsmart() +Description +: starts to auto configuration，if success set up ssid and pwd automatically . - 描述：开始记录输入 - filename：log所保存的文件名，不支持目录 - noparse：1表示lua虚拟机不对输入进行解析，0表示lua虚拟机对输入进行解析 +Syntax +: wifi.startsmart(channel, function succeed_callback()) -node.stoplog() +Parameters +: channel: 1~13，startup channel for searching, if null, default to 6. 20 seconds for each channel. + succeed_callback: callback function for success configuration, which is called after getting the password and the connection to AP. - 描述：结束log +Returns +: null -例子：录制log到init.lua文件，可以在系统启动之后自动调用该文件。 +Example +: **** +``` + wifi.startsmart(6, cb()) +``` - node.format() - node.startlog("init.lua", 1) - print("hello world") - node.stoplog() +See also +: **-** [wifi.stopsmart()](#wf_stopsmart) -此时，文件init.lua内部将含有内容，重启之后，系统执行print("hello world") -node.readlog( filename) + +## wifi.stopsmart() +Description +: stop the configuring process. - 描述：读取文件 - filename：log文件名，不支持目录 - 返回：读取的内容，字符串形式 +Syntax +: wifi.stopsmart() -node.list() +Parameters +: null - 描述：返回所有文件 - 返回：一个包含 <文件名：文件大小> pair 的map +Returns +: null -wifi module ------------ -[up](#upupup) +Example +: **** +``` + wifi.stopsmart() +``` -常量：wifi.STATION, wifi.SOFTAP, wifi.STATIONAP +See also +: **-** [wifi.startsmart()](#wf_startsmart) -wifi.setmode(mode) - 描述：设置wifi的工作模式 - mode：取值：wifi.STATION, wifi.SOFTAP或wifi.STATIONAP - 返回设置之后的当前mode +#wifi.sta module -wifi.getmode() + +## wifi.sta.config() +Description +: set ssid and password in station mode. - 描述：获取wifi的工作模式 - 返回：wifi.STATION, wifi.SOFTAP或wifi.STATIONAP +Syntax +: wifi.sta.config(ssid, password) -wifi.startconfig( channel, function succeed_callback ) +Parameters +: ssid: string which is less than 32 bytes. + password: string which is less than 64 bytes. - 描述：开始智能配置，若成功自动设置ssid和pwd并退出 - channel：1~13，起始搜索信道。若不指定，默认为6，每个信道搜索20秒 - succeed_callback：配置成功后的回调函数，将在获取密码正确并连接上ap之后调用 -wifi.stopconfig() +Returns +: null - 描述：中断智能配置 +Example +: **** +``` + wifi.sta.config("myssid","mypassword") +``` -wifi.station module ------------------ -wifi.station.setconfig(ssid, password) +See also +: **-** [wifi.sta.connect()](#ws_connect) - 描述：设置station模式下的ssid和password - ssid：字符串形式，长度小于32 - password：字符串形式，长度小于64 +: **-** [wifi.sta.disconnect()](#ws_disconnect) -wifi.station.connect() - 描述：station模式下连接至ap + +## wifi.sta.connect() +Description +: connect to AP in station mode. -wifi.station.disconnect() +Syntax +: wifi.sta.connect() - 描述：station模式下断开与ap的连接 +Parameters +: null -wifi.station.autoconnect(auto) - 描述：station模式下设置自动连接至ap - auto：0表示设置为不自动连，1表示设置为自动连接 +Returns +: null -wifi.station.getip() +Example +: **** +``` + wifi.sta.connect() +``` - 描述：station模式下获取ip - 返回：字符串形式的ip，如"192.168.0.2" +See also +: **-** [wifi.sta.disconnect()](#ws_disconnect) -wifi.station.getmac() +: **-** [wifi.sta.config()](#ws_config) - 描述：station模式下获取mac - 返回：字符串形式的mac，如"18-33-44-FE-55-BB" -wifi.ap module ---------------- -wifi.ap.setconfig(cfg) + +## wifi.sta.disconnect() +Description +: disconnect from AP in station mode. - 描述：设置station模式下的ssid和password - cfg：设置需要的map +Syntax +: wifi.sta.disconnect() -例子： +Parameters +: null - cfg={} - cfg.ssid="myssid" - cfg.pwd="mypwd" - wifi.ap.setconfig(cfg) -wifi.ap.getip() +Returns +: null - 描述：ap模式下获取ip - 返回：字符串形式的ip，如"192.168.0.2" +Example +: **** +``` + wifi.sta.disconnect() +``` -wifi.ap.getmac() +See also +: **-** [wifi.sta..config()](#ws_config) - 描述：ap模式下获取mac - 返回：字符串形式的mac，如"1A-33-44-FE-55-BB" +: **-** [wifi.sta.connect()](#ws_connect) -gpio module ------------ -常量：gpio.OUTPUT, gpio.INPUT, gpio.HIGH, gpio.LOW -gpio.mode( pin, mode) + +## wifi.sta.autoconnect() +Description +: auto connect to AP in station mode. - 描述：设置对应pin的输入输出模式，将该pin初始化为gpio模式。 - pin：0~11，IO索引编号 - mode：gpio.OUTPUT或者gpio.INPUT +Syntax +: wifi.sta.autoconnect(auto) -gpio.read(pin) +Parameters +: auto: 0 for disable auto connecting. 1 for enable auto connecting - 描述：读取对应pin的值 - pin：0~11，IO索引编号 - 返回：0表示低，1表示高 -gpio.write(pin, level) +Returns +: null - 描述：设置对应pin的值 - pin：0~11，IO索引编号 - level：gpio.HIGH或者gpio.LOW +Example +: **** +``` + wifi.sta.autoconnect() +``` -例子： +See also +: **-** [wifi.sta..config()](#ws_config) - pin=1 - gpio.mode(pin, gpio.OUTPUT) - gpio.write(pin, gpio.HIGH) +: **-** [wifi.sta.connect()](#ws_connect) -将索引1的pin设置为GPIO模式，并设置为高电平。 +: **-** [wifi.sta.disconnect()](#ws_disconnect) -net module ---------------- -常量：net.TCP, net.UDP -net.createServer(type) + +## wifi.sta.getip() +Description +: get ip address in station mode. - 描述：建立一个服务器 - type：net.TCP或 net.UDP - 返回：net.server子模块 +Syntax +: wifi.sta.getip() -net.createConnection(type) +Parameters +: null - 描述：建立一个客户端 - type：net.TCP或 net.UDP - 返回：net.socket子模块 -net.server module -------------- -listen(port,[ip],function(net.socket)) +Returns +: ip address in string, for example:"192.168.0.111" - 描述：监听某端口 - port：端口号 - ip：可忽略，ip字符串 - function(net.socket): 回调函数，当有连接建立的时候，作为参数传给回调函数。 +Example +: **** +``` + //print current ip + print(wifi.sta.getip()) +``` -例子： +See also +: **-** [wifi.sta..getmac()](#ws_getmac) - sv=net.createServer(net.TCP, false) - sv:listen(80,function(c) - c:on("receive", function(sck, pl) print(pl) end) - c:send("hello world") - end) -close() + +## wifi.sta.getmac() +Description +: get mac address in station mode. - 描述：关闭服务器 +Syntax +: wifi.sta.getmac() -net.socket module -------- -connect(port, ip) +Parameters +: null - 描述：连接到某ip和端口 - port：端口号 - ip：ip字符串 -send( string, function(sent) ) +Returns +: mac address in string, for example:"18-33-44-FE-55-BB" - 描述：向连接发送数据 - string：需要发送的数据字符串 +Example +: **** +``` + //print current mac address + print(wifi.sta.getmac()) +``` -on(event, function cb()) +See also +: **-** [wifi.sta..getip()](#ws_getip) - 描述：注册事件的回调函数 - event：字符串 - 可为："connection","reconnection","disconnection","receive","sent" - function cb(net.socket, [string])：回调函数。第一个参数为socket连接。 - 若event为"receive"， 第二个参数为接收到数据，字符串形式。 -例子： +#wifi.ap module - sk=net.createConnection(net.TCP, false) - sk:on("receive", function(sck, pl) print(pl) end ) - sk:connect(80,"115.239.210.27") - sk:send("GET / HTTP/1.1\r\nHost: 115.239.210.27\r\n - Connection: keep-alive\r\nAccept: */*\r\n\r\n") + +## wifi.ap.config() +Description +: set ssid and password in ap mode. -close() +Syntax +: wifi.ap.config(cfg) - 描述：关闭socket +Parameters +: cfg: lua table for setup ap. +: Example: +``` + cfg={} + cfg.ssid="myssid" + cfg.pwd="mypwd" + wifi.ap.setconfig(cfg) +``` -dns(domain, function cb(net.socket, ip) ) +Returns +: null + +Example +: **** +``` + wifi.ap.config(ssid, 'password') +``` + +See also +: <> + + +## wifi.ap.getip() +Description +: get ip in ap mode. + +Syntax +: wifi.ap.getip() + +Parameters +: null + +Returns +: ip address in string, for example:"192.168.0.111" + +Example +: **** +``` + wifi.ap.getip() +``` + +See also +: **-** [wifi.ap..getmac()](#wa_getmac) + + + +## wifi.ap.getmac() +Description +: get mac address in ap mode. + +Syntax +: wifi.ap.getmac() + +Parameters +: null + +Returns +: mac address in string, for example:"1A-33-44-FE-55-BB" + +Example +: **** +``` + wifi.ap.getmac() +``` + +See also +: **-** [wifi.ap.getip()](#wa_getip) + + +#timer module + +## tmr.delay() +Description +: delay us micro seconds. + +Syntax +: tmr.dealy(us) + +Parameters +: us: delay time in micro second + +Returns +: null + +Example +: **** +``` + //delay 100us + tmr.delay(100) +``` + +See also +: **-** [tmr.now()](#tm_now) + + + +## tmr.now() +Description +: return the current value of system counter: uint32, loopback, us. + +Syntax +: tmr.now() + +Parameters +: null + +Returns +: uint32: value of counter + +Example +: **** +``` + //print current value of counter + print(tmr.now()) +``` + +See also +: **-** [tmr.delay()](#tm_delay) + + + +## tmr.alarm() +Description +: alarm time. + +Syntax +: tmr.alarm(interval, repeat, function do()) + +Parameters +: Interval: alarm time, unit: millisecond; + repeat: 0 for one time alarm, 1 for repeat; + function do(): callback function for alarm timed out. + +Returns +: null + +Example +: **** +``` + //print "hello world" every 1000ms + tmr.alarm(1000, 1, function() print(“hello world”) end ) +``` + +See also +: **-** [tmr.now()](#tm_now) + + + +## tmr.stop() +Description +: stop alarm. +: Note: only one alarm is allowed, the previous one would be replaced if tmr.alarm() again before tmr.stop(). + +Syntax +: tmr.stop() + +Parameters +: null. + +Returns +: null + +Example +: **** +``` + //print "hello world" every 1000ms + tmr.alarm(1000, 1, function() print(“hello world”) end ) + + //something else + + //stop alarm + tmr.stop() +``` + +See also +: **-** [tmr.now()](#tm_now) + + +#GPIO module +##CONSTANT +: gpio.OUTPUT, gpio.INPUT, gpio.INT, gpio.HIGH, gpio.LOW + + + +## gpio.mode() +Description +: initialize pin to GPIO mode, set the pin in/out mode. + +Syntax +: gpio.mode(pin, mode) + +Parameters +: pin: 0~11，IO index + mode: gpio.OUTPUT or gpio.INPUT, or gpio.INT(interrupt mode) + +Returns +: null + +Example +: **** +``` + //set gpio 0 as output. + gpio.mode(0, gpio.OUTPUT) + +``` + +See also +: **-** [gpio.read()](#io_read) + + + +## gpio.read() +Description +: read pin value. + +Syntax +: gpio.read(pin) + +Parameters +: pin: 0~11，IO index + +Returns +: number:0 for low, 1 for high + +Example +: **** +``` + //read value of gpio 0. + gpio.read(0) +``` + +See also +: **-** [gpio.mode()](#io_mode) + + + +## gpio.write() +Description +: set pin value. + +Syntax +: gpio.write(pin) + +Parameters +: pin: 0~11，IO index +: level: gpio.HIGH or gpio.LOW + +Returns +: null + +Example +: **** +``` + //set pin index 1 to GPIO mode, and set the pin to high. + pin=1 + gpio.mode(pin, gpio.OUTPUT) + gpio.write(pin, gpio.HIGH) +``` + +See also +: **-** [gpio.mode()](#io_mode) + +: **-** [gpio.read()](#io_read) + + + +## gpio.trig() +Description +: set the interrupt callback function for pin. + +Syntax +: gpio.trig(pin, type, function(level)) + +Parameters +: pin: 0~11，IO index + type: ”up”, “down”, “both”, “low”, “high”, which represent rising edge, falling edge, both edge, low level, high level trig mode separately. + function(level): callback function when triggered. The gpio level is the param. + Use previous callback function if undefined here. + +Returns +: null + +Example +: **** +``` + //use pin 0 as the input pulse width counter + 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, "down ") else gpio.trig(0, "up ") end + end + gpio.trig(0, "down ",pin0cb) + +``` + +See also +: **-** [gpio.mode()](#io_mode) + +: **-** [gpio.write()](#io_write) + + +#PWM module + +## pwm.setup() +Description +: set pin to PWM mode. Only 3 pins can be set to PWM mode at the most. + +Syntax +: pwm.setup(pin, clock, duty) + +Parameters +: pin: 0~11，IO index + clock: 1~500，pwm frequency + duty: 0~100，pwm duty cycle in percentage + +Returns +: null + +Example +: **** +``` + //set pin index 0 as pwm output, frequency is 100Hz, duty cycle is 50-50.. + pwm.setup(0, 100, 50) +``` + +See also +: **-** [pwm.start()](#pw_start) + + + +## pwm.close() +Description +: quit PWM mode for specified pin. + +Syntax +: pwm.close(pin) + +Parameters +: pin: 0~11，IO index + +Returns +: null + +Example +: **** +``` + pwm.close(0) +``` + +See also +: **-** [pwm.start()](#pw_start) + + + +## pwm.start() +Description +: pwm starts, you can detect the waveform on the gpio. + +Syntax +: pwm.start(pin) + +Parameters +: pin: 0~11，IO index + +Returns +: null + +Example +: **** +``` + pwm.start(0) +``` + +See also +: **-** [pwm.stop()](#pw_stop) + + + +## pwm.stop() +Description +: pause the output of PWM waveform. + +Syntax +: pwm.stop(pin) + +Parameters +: pin: 0~11，IO index + +Returns +: null + +Example +: **** +``` + pwm.stop(0) +``` + +See also +: **-** [pwm.start()](#pw_start) + + + +## pwm.setclock() +Description +: set pwm frequency for pin. +: Note: setup pwm frequency will synchronously change others if there are any. Only one PWM frequency can be allowed for the system. + +Syntax +: pwm.setclock(pin, clock) + +Parameters +: pin: 0~11，IO index. + clock: 1~500, pwm frequency. + +Returns +: null + +Example +: **** +``` + pwm.setclock(0, 100) +``` + +See also +: **-** [pwm.getclock()](#pw_getclock) + + + +## pwm.getclock() +Description +: get pwm frequency of pin. + +Syntax +: pwm.getclock(pin) + +Parameters +: pin: 0~11，IO index. + +Returns +: number:pwm frequency of pin + +Example +: **** +``` + print(pwm.getclock(0)) +``` + +See also +: **-** [pwm.setclock()](#pw_setclock) + + + +## pwm.setduty() +Description +: set duty clycle for pin. + +Syntax +: pwm.setduty(pin, duty) + +Parameters +: pin: 0~11，IO index +: duty: 0~100，pwm duty cycle in percentage + +Returns +: null + +Example +: **** +``` + pwm.setduty(0, 50) +``` + +See also +: **-** [pwm.getduty()](#pw_getduty) + + + +## pwm.getduty() +Description +: get duty clycle for pin. + +Syntax +: pwm.getduty(pin) + +Parameters +: pin: 0~11，IO index + +Returns +: null + +Example +: **** +``` + //D0 is connected to green led + //D1 is connected to blue led + //D2 is connected to red 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) // set led to red + led(0,0,50) //set led to blue. + +``` + +See also +: **-** [pwm.setduty()](#pw_setduty) + + +#net module +##CONSTANT +: net.TCP, net.UDP + + +## net.createServer() +Description +: create a server. + +Syntax +: net.createServer(type, secure) + +Parameters +: type: net.TCP or net.UDP + secure: true or false, true for safe link, false for ordinary link + +Returns +: net.server sub module + +Example +: **** +``` + net.createServer(net.TCP, true) +``` + +See also +: **-** [net.createConnection()](#nt_createConnection) + + + +## net.createConnection() +Description +: create a client. + +Syntax +: net.createConnection(type, secure) + +Parameters +: type: net.TCP or net.UDP + secure: true or false, true for safe link, false for ordinary link + +Returns +: net.server sub module + +Example +: **** +``` + net.createConnection(net.UDP, false) +``` + +See also +: **-** [net.createServer()](#nt_createServer) + + +#net.server module + +## listen() +Description +: listen on port from [ip] address. + +Syntax +: net.server.listen(port,[ip],function(net.socket)) + +Parameters +: port: port number + ip:ip address string, can be omitted + function(net.socket): callback function, pass to Caller function as param if a connection is created successfully + +Returns +: null + +Example +: **** +``` + //create a server + sv=net.createServer(net.TCP, false) + //server listen on 80, if data received, print data to console, and send "hello world" to remote. + sv:listen(80,function(c) + c:on("receive", function(sck, pl) print(pl) end) + c:send("hello world") + end) +``` + +See also +: **-** [net.createServer()](#nt_createServer) + + + +## close() +Description +: close server. + +Syntax +: net.server.close() + +Parameters +: null + +Returns +: null + +Example +: **** +``` + //create a server + sv=net.createServer(net.TCP, false) + //close server + sv:close() +``` + +See also +: **-** [net.createServer()](#nt_createServer) + + +#net.socket module + +## connect() +Description +: connect to remote. + +Syntax +: connect(port, ip) + +Parameters +: port: port number + ip: ip address in string + +Returns +: null + +See also +: **-** [net.socket:on()](#nk_on) + + + +## send() +Description +: send data to remote via connection. + +Syntax +: send(string, function(sent)) + +Parameters +: string: data in string which will be sent to remote + function(sent): callback function for sending string + +Returns +: null + +See also +: **-** [net.socket:on()](#nk_on) + + + +## on() +Description +: register callback function for event. + +Syntax +: on(event, function cb()) + +Parameters +: event: string, which can be: "connection"，"reconnection"，"disconnection"，"receive"，"sent" + function cb(net.socket, [string]): callback function. The first param is the socket. + If event is”receive”， the second param is received data in string. + +Returns +: null + +Example +: **** +``` + sk=net.createConnection(net.TCP, false) + sk:on("receive", function(sck, c) print(c) end ) + sk:connect(80,"192.168.0.66") + sk:send("GET / HTTP/1.1\r\nHost: 192.168.0.66\r\nConnection: keep-alive\r\nAccept: */*\r\n\r\n") +``` + +See also +: **-** [net.createServer()](#nt_createServer) + + + +## close() +Description +: close socket. + +Syntax +: close() + +Parameters +: null + +Returns +: null + +See also +: **-** [net.createServer()](#nt_createServer) + + + +## dns() +Description +: get domain ip + +Syntax +: dns(domain, function(net.socket, ip)) + +Parameters +: domain: domain name. + function (net.socket, ip): callback function. The first param is the socket, the second param is the ip address in string. + +Returns +: null + +See also +: **-** [net.createServer()](#nt_createServer) + + +#i2c module +##CONSTANT +: i2c.SLOW, i2c.TRANSMITTER, i2c. RECEIVER. FAST（400k）is not supported for now. + + +## i2c.setup() +Description +: initialize i2c. + +Syntax +: i2c.setup(id, pinSDA, pinSCL, speed) + +Parameters +: id = 0 + pinSDA: 0~11，IO index + pinSCL: 0~11，IO index + speed: i2c.SLOW + +Returns +: null + +See also +: **-** [i2c.read()](#ic_read) + + + +## i2c.start() +Description +: start i2c transporting. + +Syntax +: i2c.start(id) + +Parameters +: id = 0 + +Returns +: null + +See also +: **-** [i2c.read()](#ic_read) + + + +## i2c.stop() +Description +: stop i2c transporting. + +Syntax +: i2c.stop(id) + +Parameters +: id = 0 + +Returns +: null + +See also +: **-** [i2c.read()](#ic_read) + + + +## i2c.address() +Description +: setup i2c address and read/write mode. + +Syntax +: i2c.address(id, device_addr, direction) + +Parameters +: id=0 + device_addr: device address. + direction: i2c.TRANSMITTER for writing mode , i2c. RECEIVER for reading mode + +Returns +: null + +See also +: **-** [i2c.read()](#ic_read) + + +## i2c.write() +Description +: write data to i2c, data can be multi numbers, string or lua table. + +Syntax +: i2c.write(id, data1, data2,...) + +Parameters +: id=0 + data: data can be numbers, string or lua table. + +Returns +: null + +Example +: **** +``` + i2c.write(0, "hello", "world") +``` + +See also +: **-** [i2c.read()](#ic_read) + + + +## i2c.read() +Description +: read data for len bytes. + +Syntax +: i2c.read(id, len) + +Parameters +: id=0 + len: data length + +Returns +: string:data received. + +Example +: **** +``` + id=0 + sda=1 + scl=0 + + //initialize i2c, set pin1 as sda, set pin0 as scl + i2c.setup(id,sda,scl,i2c.SLOW) + + //user defined function: read from reg_addr content of dev_addr + 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 + + //get content of register 0xAA of device 0x77 + reg = read_reg(0x77, 0xAA) + pirnt(string.byte(reg)) + +``` + +See also +: **-** [i2c.write()](#ic_write) - 描述：获取domain的ip - domain：字符串 - function cb(net.socket, ip)：回调函数。 - 第一个参数为socket连接本身， 第二个为获取的ip, 字符串形式。 diff --git a/README1.md b/README1.md new file mode 100644 index 00000000..649d7415 --- /dev/null +++ b/README1.md @@ -0,0 +1,292 @@ +nodeMcu API说明 +======= +version 0.1 2014-10-11 + up +flash 错误 +---- + 注意：有些模块在烧写之后启动，串口输出 ERROR in flash_read: r=。。。 + 这是因为模块原来的flash内部没有擦除。 + 可使用blank.bin(4k)， + 重复烧入起始地址0x47000, 0x48000, 0x49000, 0x4a000扇区. + 或者生成一个512k大小的blank512k.bin, 内容为全0xFF，从0x00000开始烧入。 + 烧入之后可以正常运行。 + +概述 +------ + 支持一键配置 + + 基于Lua 5.1.4，使用者需了解最简单的Lua语法。 + + 采用事件驱动的编程模型。 + + 内置 timer，pwm，i2c，net，gpio，wifi module。 + + 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。 + +###目前的编号对应表格： + + IO索引编号 ESP8266实际IO IO索引编号 ESP8266实际IO + 0 GPIO12 8 GPIO0 + 1 GPIO13 9 GPIO2 + 2 GPIO14 10 GPIO4 + 3 GPIO15 11 GPIO5 + 4 GPIO3 + 5 GPIO1 + 6 GPIO9 + 7 GPIO10 + +###串口波特率 +9600 + +###固件烧写地址： + + eagle.app.v6.flash.bin：0x00000 + eagle.app.v6.irom0text.bin：0x10000 + esp_init_data_default.bin：0x7c000 + blank.bin：0x7e000 + + 第一次使用建议将blank512k.bin烧写在地址0x00000 + +node module +------ +node.restart() + + 描述：重新启动 + +node.dsleep( us ) + + 描述：深度睡眠 us 微秒，时间到之后将重新启动 + us：时间，单位微秒 + +node.chipid() + + 描述：返回芯片id + 返回：number + +node.heap() + + 描述：返回可用内存 in bytes + 返回：系统heap剩余 + +node.format() + + 描述：格式化用户flash区 + +node.startlog( filename, noparse) + + 描述：开始记录输入 + filename：log所保存的文件名，不支持目录 + noparse：1表示lua虚拟机不对输入进行解析，0表示lua虚拟机对输入进行解析 + +node.stoplog() + + 描述：结束log + +例子：录制log到init.lua文件，可以在系统启动之后自动调用该文件。 + + node.format() + node.startlog("init.lua", 1) + print("hello world") + node.stoplog() + +此时，文件init.lua内部将含有内容，重启之后，系统执行print("hello world") + +node.readlog( filename) + + 描述：读取文件 + filename：log文件名，不支持目录 + 返回：读取的内容，字符串形式 + +node.list() + + 描述：返回所有文件 + 返回：一个包含 <文件名：文件大小> pair 的map + +wifi module +----------- +[up](#upupup) + +常量：wifi.STATION, wifi.SOFTAP, wifi.STATIONAP + +wifi.setmode(mode) + + 描述：设置wifi的工作模式 + mode：取值：wifi.STATION, wifi.SOFTAP或wifi.STATIONAP + 返回设置之后的当前mode + +wifi.getmode() + + 描述：获取wifi的工作模式 + 返回：wifi.STATION, wifi.SOFTAP或wifi.STATIONAP + +wifi.startconfig( channel, function succeed_callback ) + + 描述：开始智能配置，若成功自动设置ssid和pwd并退出 + channel：1~13，起始搜索信道。若不指定，默认为6，每个信道搜索20秒 + succeed_callback：配置成功后的回调函数，将在获取密码正确并连接上ap之后调用 + +wifi.stopconfig() + + 描述：中断智能配置 + +wifi.station module +----------------- +wifi.station.setconfig(ssid, password) + + 描述：设置station模式下的ssid和password + ssid：字符串形式，长度小于32 + password：字符串形式，长度小于64 + +wifi.station.connect() + + 描述：station模式下连接至ap + +wifi.station.disconnect() + + 描述：station模式下断开与ap的连接 + +wifi.station.autoconnect(auto) + + 描述：station模式下设置自动连接至ap + auto：0表示设置为不自动连，1表示设置为自动连接 + +wifi.station.getip() + + 描述：station模式下获取ip + 返回：字符串形式的ip，如"192.168.0.2" + +wifi.station.getmac() + + 描述：station模式下获取mac + 返回：字符串形式的mac，如"18-33-44-FE-55-BB" + +wifi.ap module +--------------- +wifi.ap.setconfig(cfg) + + 描述：设置station模式下的ssid和password + cfg：设置需要的map + +例子： + + cfg={} + cfg.ssid="myssid" + cfg.pwd="mypwd" + wifi.ap.setconfig(cfg) + +wifi.ap.getip() + + 描述：ap模式下获取ip + 返回：字符串形式的ip，如"192.168.0.2" + +wifi.ap.getmac() + + 描述：ap模式下获取mac + 返回：字符串形式的mac，如"1A-33-44-FE-55-BB" + +gpio module +----------- +常量：gpio.OUTPUT, gpio.INPUT, gpio.HIGH, gpio.LOW + +gpio.mode( pin, mode) + + 描述：设置对应pin的输入输出模式，将该pin初始化为gpio模式。 + pin：0~11，IO索引编号 + mode：gpio.OUTPUT或者gpio.INPUT + +gpio.read(pin) + + 描述：读取对应pin的值 + pin：0~11，IO索引编号 + 返回：0表示低，1表示高 + +gpio.write(pin, level) + + 描述：设置对应pin的值 + pin：0~11，IO索引编号 + level：gpio.HIGH或者gpio.LOW + +例子： + + pin=1 + gpio.mode(pin, gpio.OUTPUT) + gpio.write(pin, gpio.HIGH) + +将索引1的pin设置为GPIO模式，并设置为高电平。 + +net module +--------------- +常量：net.TCP, net.UDP + +net.createServer(type) + + 描述：建立一个服务器 + type：net.TCP或 net.UDP + 返回：net.server子模块 + +net.createConnection(type) + + 描述：建立一个客户端 + type：net.TCP或 net.UDP + 返回：net.socket子模块 + +net.server module +------------- +listen(port,[ip],function(net.socket)) + + 描述：监听某端口 + port：端口号 + ip：可忽略，ip字符串 + function(net.socket): 回调函数，当有连接建立的时候，作为参数传给回调函数。 + +例子： + + sv=net.createServer(net.TCP, false) + sv:listen(80,function(c) + c:on("receive", function(sck, pl) print(pl) end) + c:send("hello world") + end) + +close() + + 描述：关闭服务器 + +net.socket module +------- +connect(port, ip) + + 描述：连接到某ip和端口 + port：端口号 + ip：ip字符串 + +send( string, function(sent) ) + + 描述：向连接发送数据 + string：需要发送的数据字符串 + +on(event, function cb()) + + 描述：注册事件的回调函数 + event：字符串 + 可为："connection","reconnection","disconnection","receive","sent" + function cb(net.socket, [string])：回调函数。第一个参数为socket连接。 + 若event为"receive"， 第二个参数为接收到数据，字符串形式。 + +例子： + + sk=net.createConnection(net.TCP, false) + sk:on("receive", function(sck, pl) print(pl) end ) + sk:connect(80,"115.239.210.27") + sk:send("GET / HTTP/1.1\r\nHost: 115.239.210.27\r\n + Connection: keep-alive\r\nAccept: */*\r\n\r\n") + +close() + + 描述：关闭socket + +dns(domain, function cb(net.socket, ip) ) + + 描述：获取domain的ip + domain：字符串 + function cb(net.socket, ip)：回调函数。 + 第一个参数为socket连接本身， 第二个为获取的ip, 字符串形式。