ESP8266LUA脚本语言开发:外设篇串口

local mytimer1 = tmr.create() 

function TimeFunction1()
    uart.write(0, "hello 8266")
end

mytimer1:register(1000, 1, TimeFunction1)

mytimer1:start()

local UsartReceiveData="";
local UsartReceiveDataCopy="";
local UsartReceiveFlage=false;
local UsartIdleCnt = 0;


local TimerMs = tmr.create() 

TimerMs:register(1,1,function()

    if  UsartReceiveFlage == true  then
        UsartIdleCnt = UsartIdleCnt +1;
        if  UsartIdleCnt > 10 then
            UsartIdleCnt = 0;
            UsartReceiveFlage = false
            UsartReceiveDataCopy = UsartReceiveData;
            UsartReceiveData = "";
        end
    end

    if  UsartReceiveDataCopy ~= nil  then
        uart.write(0,UsartReceiveDataCopy)  
        UsartReceiveDataCopy = nil
    end
end)
TimerMs:start()



uart.setup(0, 115200, 8, uart.PARITY_NONE, uart.STOPBITS_1)
uart.on("data",0,function(data)
    UsartReceiveData = UsartReceiveData..data;
    UsartReceiveFlage = true;
    UsartIdleCnt = 0;
end, 0)

local T = tmr.create()
T:register(3000, 0, function() 
    if  file.open("uart.lua", "r") then 
        file.close(); 
        dofile("uart.lua")
    end 
end)
T:start();