• VCC 3,3V
• EN auf VCC
• GPIO15 auf GND

• Python 2.7
  • pip install pyserial
• https://github.com/4refr0nt/luatool

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• (main.lua) „c:\Python27\python.exe“ luatool.py –port COM7
• (init.lua) „c:\Python27\python.exe“ luatool.py –port COM7 –src init.lua –dest init.lua

init.lua

print('init.lua ver 1.2')
wifi.setmode(wifi.STATION)
print('set mode=STATION (mode='..wifi.getmode()..')')
print('MAC: ',wifi.sta.getmac())
print('chip: ',node.chipid())
print('heap: ',node.heap())
-- wifi config start
wifi.sta.config("SSID","PW")
-- wifi config end
 
--wenn alles getestet dofile hier aktivieren
--dofile("main.lua")

main.lua

tmr.alarm(0, 1000, 1, function()
   if wifi.sta.getip() == nil then
      print("Connecting to AP...")
   else
      tmr.stop(0)
      print('IP: ',wifi.sta.getip())      
      --Telnet Server
      telnet_Server()
   end
end)
 
--
-- setup a telnet server that hooks the sockets input
--  
function telnet_Server()
  inUse = false
 
  function listenFun(sock)   
    if inUse then
      sock:send("Already in use.\n")
      sock:close()
      return
    end
    inUse = true
 
    function s_output(str)
      if(sock ~=nil) then
      sock:send(str)
      end
    end
 
    node.output(s_output, 0)
 
    sock:on("receive",function(sock, input)
         node.input(input)
      end)
 
    sock:on("disconnection",function(sock)
        node.output(nil)
        inUse = false
        end)
 
    sock:send("Welcome to NodeMCU world.\n> ")
  end  
 
  telnetServer = net.createServer(net.TCP, 180)
  telnetServer:listen(23, listenFun) 
end

per Telnet verbinden auf Port 23

uart.setup(0,9600,8,0,1,0)
uart.write(0,string.char(0x1,0x2))
uart.on("data",0, function(data) print(data) end, 0)

• http://www.lua.org/pil/contents.html (Lua Hilfe)
• https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en (Api Hilfe)