開發環境

ESP-01 wifi模組
LualLoader
NodeMCU

nodemcu_float_0.9.6-dev_20150704.bin
nodemcu_integer_0.9.6-dev_20150704.bin

將ESP-01刷寫過NodeMCU韌體之後，就可以用lua語言來玩wifi模組了：

NodeMCU韌體中的GPIO引腳定義如下：

使用GPIO2控制LED燈：

wifi.setmode(wifi.STATION)
wifi.sta.config("SSID","PWD")
print(wifi.sta.getip())

led = 4
gpio.mode(led, 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>LED <a href=\"?pin=ON\"><button>ON</button></a> <a href=\"?pin=OFF\"><button>OFF</button></a></p>";
        local _on,_off = "",""
		if(_GET.pin == "ON")then
              gpio.write(led, gpio.HIGH);
        elseif(_GET.pin == "OFF")then
              gpio.write(led, gpio.LOW);
        end
        client:send(buf);
        client:close();
        collectgarbage();
    end)
end)