我正在尝试通过 ESP8266 12E NODE MCU 开发套件的串行端口将数据发送到 arduino 串行端口。
我很难找到使用的语法示例,我尝试通过 arduino 使用 serial.print() 发送数据,它可以工作,但我不确定如何在 Lua 中完成此操作。
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我可以得到 SSID 和密码表单 arduino
初始化文件
SSID = "XXXX"
Password = "XXXX"
wifi.setmode(wifi.STATION)
wifi.sta.config(SSID,Password) -- Replace with your AP Name and security key.
wifi.sta.connect()
tmr.alarm(1, 1000, 1, function()
if wifi.sta.getip()== nil then
print("Obtaining IP...")
else
tmr.stop(1)
print("Got IP. "..wifi.sta.getip())
dofile("LED_on_off.lua")
end
end)
LED_ON_OFF LUA
print(wifi.sta.getip())
led2 = 4
gpio.mode(led1, gpio.OUTPUT)
gpio.mode(led2, gpio.OUTPUT)
srv=net.createServer(net.TCP)
srv:listen(80,function(conn)
conn:on("receive", function(client,request)
local buf = "";
local _, _, method, path, vars = string.find(request, "([A-Z]+) (.+)?(.+) HTTP");
if(method == nil)then
_, _, method, path = string.find(request, "([A-Z]+) (.+) HTTP");
end
local _GET = {}
if (vars ~= nil)then
for k, v in string.gmatch(vars, "(%w+)=(%w+)&*") do
_GET[k] = v
end
end
buf = buf.."<h1> ESP8266 Web Server</h1>";
buf = buf.."<p>GPIO2 <a href=\"?pin=ON2\"><button>ON</button></a> <a href=\"?pin=OFF2\"><button>OFF</button></a></p>";
local _on,_off = "",""
if(_GET.pin == "OFF2")then
gpio.write(led2, gpio.HIGH);
elseif(_GET.pin == "ON2")then
**********Here i would like to send data ot arduini that pin is swithced oN ************
gpio.write(led2, gpio.LOW);
end
client:send(buf);
client:close();
collectgarbage();
end)
end)