diff --git a/API.html b/API.html index d767fc1c..b9d4b5b9 100644 --- a/API.html +++ b/API.html @@ -1014,11 +1014,78 @@ body .markdown-body page-break-after: avoid; } } -API

nodeMcu API Instruction

+API

nodeMcu API Instruction

version 0.9.2 build 2014-11-18

change log:

2014-11-18

+bug fixed: net.socket:connect() has no effect.

+

2014-11-18

bug fixed: as a tcp server, the connection can’t closed with :close().

tcp server: inactive connection will closed by server in 30s (previously 180s).

add a test api node.input() to put lua chunk into lua interpretor, multi-line supported.

@@ -1094,8 +1161,9 @@ key is triged only when key is released

Returns

nil

Example

-
    node.restart();
-
+
    node.restart();
+
+

See also

-

@@ -1111,8 +1179,9 @@ key is triged only when key is released

Returns

nil

Example

-
    node.dsleep(us);
-
+
    node.dsleep(us);
+
+

See also

-

@@ -1127,8 +1196,9 @@ key is triged only when key is released

Returns

number:chip ID

Example

-
    id = node.chipid();
-
+
    id = node.chipid();
+
+

See also

-

@@ -1143,8 +1213,9 @@ key is triged only when key is released

Returns

number: system heap size left in bytes

Example

-
    heap_size = node.heap();
-
+
    heap_size = node.heap();
+
+

See also

-

@@ -1161,8 +1232,9 @@ Default function: long: change LED blinking rate, short: reset chip

Returns

nil

Example

-
    node.key("long", function(){print('hello world')})
-
+
    node.key("long", function(){print('hello world')})
+
+

See also

-

@@ -1178,9 +1250,10 @@ High: LED off time. Unit: milliseconds, time resolution: 80~100ms

Returns

nil

Example

-
    -- turn led on forever.
-    node.led(0);
-
+
    -- turn led on forever.
+    node.led(0);
+
+

See also

-

@@ -1196,9 +1269,10 @@ same as pcall(loadstring(str)) but support multi seperated line.

Returns

nil

Example

-
    -- never use node.input() in console. no effect.
-    sk:on("receive", function(conn, payload) node.input(payload) end)
-
+
    -- never use node.input() in console. no effect.
+    sk:on("receive", function(conn, payload) node.input(payload) end)
+
+

See also

-

@@ -1214,13 +1288,14 @@ serial_debug: 1 output also show in serial. 0: no serial output.

Returns

nil

Example

-
    function tonet(str)
-      sk:send(str)
-      -- print(str) WRONG!!! never ever print something in this function
-      -- because this will cause a recursive function call!!!
-    end
-    node.ouput(tonet, 1)  -- serial also get the lua output.
-
+
    function tonet(str)
+      sk:send(str)
+      -- print(str) WRONG!!! never ever print something in this function
+      -- because this will cause a recursive function call!!!
+    end
+    node.ouput(tonet, 1)  -- serial also get the lua output.
+
+

See also

-

@@ -1236,9 +1311,10 @@ serial_debug: 1 output also show in serial. 0: no serial output.

Returns

nil

Example

-
    -- remove "foo.lua" from file system.
-    file.remove("foo.lua")
-
+
    -- remove "foo.lua" from file system.
+    file.remove("foo.lua")
+
+

See also

- file.open()

@@ -1261,11 +1337,12 @@ mode:

Returns

nil

Example

-
    -- open 'init.lua', print the first line.
-    file.open("init.lua", "r")
-    print(file.readline())
-    file.close()
-
+
    -- open 'init.lua', print the first line.
+    file.open("init.lua", "r")
+    print(file.readline())
+    file.close()
+
+

See also

- file.close()

@@ -1281,11 +1358,12 @@ mode:

Returns

nil

Example

-
    -- open 'init.lua', print the first line.
-    file.open("init.lua", "r")
-    print(file.readline())
-    file.close()
-
+
    -- open 'init.lua', print the first line.
+    file.open("init.lua", "r")
+    print(file.readline())
+    file.close()
+
+

See also

- file.open()

@@ -1302,11 +1380,12 @@ mode:

file content in string, line by line, include EOL(‘\n’)

return nil when EOF.

Example

-
    -- print the first line of 'init.lua'
-    file.open("init.lua", "r")
-    print(file.readline())
-    file.close()
-
+
    -- print the first line of 'init.lua'
+    file.open("init.lua", "r")
+    print(file.readline())
+    file.close()
+
+

See also

- file.open()

@@ -1323,12 +1402,13 @@ return nil when EOF.

true: write ok.
nil: there is error

Example

-
    -- open 'init.lua' in 'a+' mode
-    file.open("init.lua", "a+")
-    -- write 'foo bar' to the end of the file
-    file.writeline('foo bar')
-    file.close()
-
+
    -- open 'init.lua' in 'a+' mode
+    file.open("init.lua", "a+")
+    -- write 'foo bar' to the end of the file
+    file.writeline('foo bar')
+    file.close()
+
+

See also

- file.open()

@@ -1345,12 +1425,13 @@ nil: there is error

true: write ok.
nil: there is error

Example

-
    -- open 'init.lua' in 'a+' mode
-    file.open("init.lua", "a+")
-    -- write 'foo bar' to the end of the file
-    file.write('foo bar')
-    file.close()
-
+
    -- open 'init.lua' in 'a+' mode
+    file.open("init.lua", "a+")
+    -- write 'foo bar' to the end of the file
+    file.write('foo bar')
+    file.close()
+
+

See also

- file.open()

@@ -1366,13 +1447,14 @@ nil: there is error

Returns

nil

Example

-
    -- open 'init.lua' in 'a+' mode
-    file.open("init.lua", "a+")
-    -- write 'foo bar' to the end of the file
-    file.write('foo bar')
-    file.flush()
-    file.close()
-
+
    -- open 'init.lua' in 'a+' mode
+    file.open("init.lua", "a+")
+    -- write 'foo bar' to the end of the file
+    file.write('foo bar')
+    file.flush()
+    file.close()
+
+

See also

- file.open()

@@ -1393,15 +1475,16 @@ offset: default 0

success: returns the final file position

fail: returns nil

Example

-
    -- open 'init.lua' in 'a+' mode
-    file.open("init.lua", "a+")
-    -- write 'foo bar' to the end of the file
-    file.write('foo bar')
-    file.flush()
-    file.seek("set")
-    print(file.readline())
-    file.close()
-
+
    -- open 'init.lua' in 'a+' mode
+    file.open("init.lua", "a+")
+    -- write 'foo bar' to the end of the file
+    file.write('foo bar')
+    file.flush()
+    file.seek("set")
+    print(file.readline())
+    file.close()
+
+

See also

- file.open()

@@ -1417,11 +1500,12 @@ fail: returns nil

Returns

a lua table which contains the {file name: file size} pairs

Example

-
    l = file.list();
-    for k,v in l do
-      print("name:"..k..", size:"..v)
-    end
-
+
    l = file.list();
+    for k,v in l do
+      print("name:"..k..", size:"..v)
+    end
+
+

See also

- file.remove()

@@ -1439,8 +1523,9 @@ fail: returns nil

Returns

current mode after setup

Example

-
    wifi.setmode(wifi.STATION)
-
+
    wifi.setmode(wifi.STATION)
+
+

See also

- wifi.getmode()

@@ -1455,8 +1540,9 @@ fail: returns nil

Returns

wifi operation mode

Example

-
    print(wifi.getmode())
-
+
    print(wifi.getmode())
+
+

See also

- wifi.setmode()

@@ -1472,8 +1558,9 @@ succeed_callback: callback function called after configuration, which is called

Returns

nil

Example

-
    wifi.startsmart(6, cb())
-
+
    wifi.startsmart(6, cb())
+
+

See also

- wifi.stopsmart()

@@ -1488,8 +1575,9 @@ succeed_callback: callback function called after configuration, which is called

Returns

nil

Example

-
    wifi.stopsmart()
-
+
    wifi.stopsmart()
+
+

See also

- wifi.startsmart()

@@ -1506,8 +1594,9 @@ password: string which is less than 64 bytes.

Returns

nil

Example

-
    wifi.sta.config("myssid","mypassword")
-
+
    wifi.sta.config("myssid","mypassword")
+
+

See also

- wifi.sta.connect()

@@ -1523,8 +1612,9 @@ password: string which is less than 64 bytes.

Returns

nil

Example

-
    wifi.sta.connect()
-
+
    wifi.sta.connect()
+
+

See also

- wifi.sta.disconnect()

@@ -1540,8 +1630,9 @@ password: string which is less than 64 bytes.

Returns

nil

Example

-
    wifi.sta.disconnect()
-
+
    wifi.sta.disconnect()
+
+

See also

- wifi.sta.config()

@@ -1557,8 +1648,9 @@ password: string which is less than 64 bytes.

Returns

nil

Example

-
    wifi.sta.autoconnect()
-
+
    wifi.sta.autoconnect()
+
+

See also

- wifi.sta.config()

@@ -1575,9 +1667,10 @@ password: string which is less than 64 bytes.

Returns

ip address in string, for example:”192.168.0.111”

Example

-
    -- print current ip
-    print(wifi.sta.getip())
-
+
    -- print current ip
+    print(wifi.sta.getip())
+
+

See also

- wifi.sta.getmac()

@@ -1592,9 +1685,10 @@ password: string which is less than 64 bytes.

Returns

mac address in string, for example:”18-33-44-FE-55-BB”

Example

-
    -- print current mac address
-    print(wifi.sta.getmac())
-
+
    -- print current mac address
+    print(wifi.sta.getmac())
+
+

See also

- wifi.sta.getip()

@@ -1608,17 +1702,19 @@ password: string which is less than 64 bytes.

Parameters

cfg: lua table to setup ap.

Example:

-
     cfg={}
-     cfg.ssid="myssid"
-     cfg.pwd="mypwd"
-     wifi.ap.setconfig(cfg)
-
+
     cfg={}
+     cfg.ssid="myssid"
+     cfg.pwd="mypwd"
+     wifi.ap.setconfig(cfg)
+
+

Returns

nil

Example

-
    wifi.ap.config(ssid, 'password')
-
+
    wifi.ap.config(ssid, 'password')
+
+

See also

-

@@ -1633,8 +1729,9 @@ password: string which is less than 64 bytes.

Returns

ip address in string, for example:”192.168.0.111”

Example

-
    wifi.ap.getip()
-
+
    wifi.ap.getip()
+
+

See also

- wifi.ap.getmac()

@@ -1649,8 +1746,9 @@ password: string which is less than 64 bytes.

Returns

mac address in string, for example:”1A-33-44-FE-55-BB”

Example

-
    wifi.ap.getmac()
-
+
    wifi.ap.getmac()
+
+

See also

- wifi.ap.getip()

@@ -1666,9 +1764,10 @@ password: string which is less than 64 bytes.

Returns

nil

Example

-
    -- delay 100us
-    tmr.delay(100)
-
+
    -- delay 100us
+    tmr.delay(100)
+
+

See also

- tmr.now()

@@ -1683,9 +1782,10 @@ password: string which is less than 64 bytes.

Returns

uint32: value of counter

Example

-
    -- print current value of counter
-    print(tmr.now())
-
+
    -- print current value of counter
+    print(tmr.now())
+
+

See also

- tmr.delay()

@@ -1702,9 +1802,10 @@ function do(): callback function for alarm timed out

Returns

nil

Example

-
    -- print "hello world" every 1000ms
-    tmr.alarm(1000, 1, function() print("hello world") end )
-
+
    -- print "hello world" every 1000ms
+    tmr.alarm(1000, 1, function() print("hello world") end )
+
+

See also

- tmr.now()

@@ -1720,14 +1821,15 @@ function do(): callback function for alarm timed out

Returns

nil

Example

-
    -- print "hello world" every 1000ms
-    tmr.alarm(1000, 1, function() print("hello world") end )
+
    -- print "hello world" every 1000ms
+    tmr.alarm(1000, 1, function() print("hello world") end )
 
-    -- something else
+    -- something else
+
+    -- stop alarm
+    tmr.stop()
+

 
-    -- stop alarm
-    tmr.stop()
-

See also

- tmr.now()

@@ -1746,10 +1848,10 @@ mode: gpio.OUTPUT or gpio.INPUT, or gpio.INT(interrupt mode)

Returns

nil

Example

-
    -- set gpio 0 as output.
-    gpio.mode(0, gpio.OUTPUT)
+
    -- set gpio 0 as output.
+    gpio.mode(0, gpio.OUTPUT)
+

 
-

See also

- gpio.read()

@@ -1764,9 +1866,10 @@ mode: gpio.OUTPUT or gpio.INPUT, or gpio.INT(interrupt mode)

Returns

number:0 - low, 1 - high

Example

-
    -- read value of gpio 0.
-    gpio.read(0)
-
+
    -- read value of gpio 0.
+    gpio.read(0)
+
+

See also

- gpio.mode()

@@ -1782,11 +1885,12 @@ level: gpio.HIGH or gpio.LOW

Returns

nil

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)
-
+
    -- 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()

@@ -1804,19 +1908,19 @@ function(level): callback function when triggered. The gpio level is the param.

Returns

nil

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)
+
    -- 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()

@@ -1835,9 +1939,10 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

Example

-
    -- set pin index 0 as pwm output, frequency is 100Hz, duty cycle is 50-50.
-    pwm.setup(0, 100, 50)
-
+
    -- set pin index 0 as pwm output, frequency is 100Hz, duty cycle is 50-50.
+    pwm.setup(0, 100, 50)
+
+

See also

- pwm.start()

@@ -1852,8 +1957,9 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

Example

-
    pwm.close(0)
-
+
    pwm.close(0)
+
+

See also

- pwm.start()

@@ -1868,8 +1974,9 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

Example

-
    pwm.start(0)
-
+
    pwm.start(0)
+
+

See also

- pwm.stop()

@@ -1884,8 +1991,9 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

Example

-
    pwm.stop(0)
-
+
    pwm.stop(0)
+
+

See also

- pwm.start()

@@ -1902,8 +2010,9 @@ clock: 1~500, pwm frequency.

Returns

nil

Example

-
    pwm.setclock(0, 100)
-
+
    pwm.setclock(0, 100)
+
+

See also

- pwm.getclock()

@@ -1918,8 +2027,9 @@ clock: 1~500, pwm frequency.

Returns

number:pwm frequency of pin

Example

-
    print(pwm.getclock(0))
-
+
    print(pwm.getclock(0))
+
+

See also

- pwm.setclock()

@@ -1935,8 +2045,9 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

Example

-
    pwm.setduty(0, 50)
-
+
    pwm.setduty(0, 50)
+
+

See also

- pwm.getduty()

@@ -1951,24 +2062,24 @@ duty: 0~100, pwm duty cycle in percentage

Returns

nil

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.
+
    -- 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()

@@ -1987,8 +2098,9 @@ secure: true or false, true for safe link, false for ordinary link

Returns

net.server sub module

Example

-
    net.createServer(net.TCP, true)
-
+
    net.createServer(net.TCP, true)
+
+

See also

- net.createConnection()

@@ -2004,8 +2116,9 @@ secure: true or false, true for safe link, false for ordinary link

Returns

net.server sub module

Example

-
    net.createConnection(net.UDP, false)
-
+
    net.createConnection(net.UDP, false)
+
+

See also

- net.createServer()

@@ -2023,14 +2136,15 @@ function(net.socket): callback function, pass to Caller function as param if a c

Returns

nil

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)
-
+
    -- 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()

@@ -2045,11 +2159,12 @@ function(net.socket): callback function, pass to Caller function as param if a c

Returns

nil

Example

-
    -- create a server
-    sv=net.createServer(net.TCP, false)
-    -- close server
-    sv:close()
-
+
    -- create a server
+    sv=net.createServer(net.TCP, false)
+    -- close server
+    sv:close()
+
+

See also

- net.createServer()

@@ -2093,11 +2208,12 @@ If event is”receive”, the second param is received data in string.

Returns

nil

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")
-
+
    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()

@@ -2194,8 +2310,9 @@ data: data can be numbers, string or lua table.

Returns

nil

Example

-
    i2c.write(0, "hello", "world")
-
+
    i2c.write(0, "hello", "world")
+
+

See also

- i2c.read()

@@ -2211,31 +2328,31 @@ len: data length

Returns

string:data received.

Example

-
    id=0
-    sda=1
-    scl=0
+
    id=0
+    sda=1
+    scl=0
 
-    -- initialize i2c, set pin1 as sda, set pin0 as scl
-    i2c.setup(id,sda,scl,i2c.SLOW)
+    -- 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
+    -- 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))
+    -- get content of register 0xAA of device 0x77
+    reg = read_reg(0x77, 0xAA)
+    pirnt(string.byte(reg))
+

 
-

See also

- i2c.write()

\ No newline at end of file