ESP8266使用详解--基于Lua脚本语言-阿里云开发者社区

ESP8266使用详解--基于Lua脚本语言

2017-02-16 3053

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简介： 这些天,,,,今天终于看到了希望,,,天道酬勤先说实现的功能...让ESP8266连接无线网,然后让它建立服务器,,我的客户端连接上以后,发给客户端发数据模块打印到串口,,往ESP8266串口里发数据自动转发给网口先看效果图,终于不需要单片机配置了程序源码我的init.

这些天,,,,今天终于看到了希望,,,天道酬勤

先说实现的功能...让ESP8266连接无线网,然后让它建立服务器,,我的客户端连接上以后,发给客户端发数据模块打印到串口,,往ESP8266串口里发数据自动转发给网口

先看效果图,终于不需要单片机配置了

程序源码

我的init.lua

lighton=0
pin=4
gpio.mode(pin,gpio.OUTPUT)
tmr.alarm(1,500,1,function()
  if lighton==0 then
      lighton=1
      gpio.write(pin,gpio.HIGH)
  else
      lighton=0
       gpio.write(pin,gpio.LOW)
  end
end)

dofile("conncet_wifi.lua")

我的 conncet_wifi.lua

uart.setup(0,9600,8,0,1,0)
wifi.setmode(wifi.STATIONAP)
wifi.sta.config("360","1234567890")
wifi.sta.connect()
tmr.alarm(2, 1000, 1, function()
     if wifi.sta.getip() == nil then
         print("Connecting...")
     else
         tmr.stop(2)
         print("Connected, IP is "..wifi.sta.getip())
     end
end)

srv=net.createServer(net.TCP,28800) 
srv:listen(8080,function(conn) 
--print("build success")
connect = conn
conn:on("receive",function(conn,payload) 
print(payload) 
--conn:send("<h1> Hello, NodeMcu.</h1>")
end) 
end)
 uart.on("data", 
      function(data) 
        connect:send(data)
    end, 0)

因为可能刷的固件不一样,如果出现下面的问题

修改为

APConfig={}
APConfig.ssid="ACLAY"
APConfig.pwd="wange903"

wifi.sta.config(APConfig)

如果想让多个客服端连接可参考这篇文章

51采集PCF8591数据通过ESP8266上传C#上位机

如果上面的代码有问题,,提示已经监听了端口不能重复监听,可以修改为下面的

ConnectCnt = 0
ConnectListenFlage=0
UsartUsFlage = 0
connect0Flage=0
connect1Flage=0
connect2Flage=0
connect3Flage=0
connect4Flage=0
tmr.alarm(3, 1000, 1, function()
                if ConnectListenFlage == 0 then
                ConnectListenFlage = 1
              
                srv:listen(8080,function(conn0) 
                UsartUsFlage = 1

                if ConnectCnt == 0 then
                   connect0 = conn0
                   connect0Flage =1
                   connect1Flage=0
                   if connect1 ~= nil then
                      connect1:close()
                   end
                   print("0-Connectd") 
                end
                if ConnectCnt == 1 then
                   connect1 = conn0 
                   connect1Flage=1
                   connect2Flage=0
                   if connect2 ~= nil then
                      connect2:close()
                   end
                   print("1-Connectd") 
                end
                if ConnectCnt == 2 then
                   connect2 = conn0
                   connect2Flage=1
                   connect3Flage=0
                   if connect3 ~= nil then
                      connect3:close()
                   end 
                   print("2-Connectd") 
                end
                if ConnectCnt == 3 then
                   connect3 = conn0 
                   connect3Flage=1
                   connect4Flage=0
                   if connect4 ~= nil then
                      connect4:close()
                   end
                   print("3-Connectd") 
                end
                if ConnectCnt == 4 then
                   connect4 = conn0
                   connect4Flage=1
                   connect0Flage=0
                   if connect0 ~= nil then
                      connect0:close()
                   end 
                   print("4-Connectd") 
                end
            
                conn0:on("receive",function(conn0,payload) 
                print(payload) end)
                ConnectCnt = ConnectCnt+1
                if ConnectCnt == 5 then
                   ConnectCnt = 0
                end
               
             end)
          end  
end)

uart.setup(0,9600,8,0,1,0)


tmr.alarm(4, 1000, 1, function()
    if UsartUsFlage == 1 then
       uart.on("data", 
       function(data) 
       if connect0 ~= nil then
          if connect0Flage == 1 then
             connect0:send(data)
          end
       end

       if connect1 ~= nil then
          if connect1Flage == 1 then
             connect1:send(data)
          end
         
       end

       if connect2 ~= nil then
          if connect2Flage == 1 then
             connect2:send(data)
          end
         
       end

       if connect3 ~= nil then
          if connect3Flage == 1 then
             connect3:send(data)
          end
         
       end

       if connect4 ~= nil then
          if connect4Flage == 1 then
             connect4:send(data)
          end
         
       end
       
       tmr.stop(4) 
       end, 0)
    end
end)

这两天测试程序还发现一个bug就是如果客户端断开了,应该检测一下哪个断开了,数据就不应该发向那个连接,,,否则就会报错,然后模块会复位重启

所以加上这段代码

conn0:on("disconnection",function(sck,c) 
                  --print(sck)
                  if sck == connect0 then connect0 = nil print("disconnect0") end if sck == connect1 then connect1 = nil print("disconnect1") end if sck == connect2 then connect2 = nil print("disconnect2") end if sck == connect3 then connect3 = nil print("disconnect3") end if sck == connect4 then connect4 = nil print("disconnect4") end end)

放一个全的

ConnectCnt = 0//连接计数
ConnectListenFlage=0//监听标志,只执行一次监听
UsartUsFlage = 0//允许串口数据发向网口 tmr.alarm(2, 1000, 1, function() if NetMode == 0 then//TCP Sever模式 if ConnectListenFlage == 0 then ConnectListenFlage = 1 srv:listen(ConnectPort,function(conn0) UsartUsFlage = 1 --print(conn0) if ConnectCnt == 0 then connect0 = conn0 if connect1 ~= nil then connect1:close() end connect1 = nil print("0-Connectd") end if ConnectCnt == 1 then connect1 = conn0 if connect2 ~= nil then connect2:close() end connect2 = nil print("1-Connectd") end if ConnectCnt == 2 then connect2 = conn0 if connect3 ~= nil then connect3:close() end connect3 = nil print("2-Connectd") end if ConnectCnt == 3 then connect3 = conn0 if connect4 ~= nil then connect4:close() end connect4 = nil print("3-Connectd") end if ConnectCnt == 4 then connect4 = conn0 if connect0 ~= nil then connect0:close() end connect0 = nil print("4-Connectd") end conn0:on("disconnection",function(sck,c) //断开连接函数 --print(sck) if sck == connect0 then connect0 = nil print("disconnect0") end if sck == connect1 then connect1 = nil print("disconnect1") end if sck == connect2 then connect2 = nil print("disconnect2") end if sck == connect3 then connect3 = nil print("disconnect3") end if sck == connect4 then connect4 = nil print("disconnect4") end end) conn0:on("receive",function(conn0,payload) uart.write(0,payload)end) --print(payload) end) ConnectCnt = ConnectCnt+1 if ConnectCnt == 5 then ConnectCnt = 0 end end) end end

串口函数里面

 if UsartUsFlage == 1 then
             if NetMode == 0 then if connect0 ~= nil then connect0:send(RevData) end if connect1 ~= nil then connect1:send(RevData) end if connect2 ~= nil then connect2:send(RevData) end if connect3 ~= nil then connect3:send(RevData) end if connect4 ~= nil then connect4:send(RevData) end end