5. 傳送資料出去

#include <SoftwareSerial.h>

#define TX 3 //ESP8266 TX接3

#define RX 2 //ESP8266 RX接2

#define SSID " " //這裡填入你家AP的SSID

#define PASSWORD " " //這裡填入你家AP的密碼

#define Rec "192.168.0.106" //這裡填入你要連線的目標IP

SoftwareSerial esp8266(TX,RX);

#define DEBUG true

void setup() {

Serial.begin(9600); //start hardware serial port

esp8266.begin(9600); //start soft serial port

pinMode(13,OUTPUT); //連線指示燈

String cmd="AT+CWJAP=\"";

cmd+=SSID;

cmd+="\",\"";

cmd+=PASSWORD;

cmd+="\"";

cmd+="\r\n";

sendData("AT+RST\r\n",2000,DEBUG); //重啟ESP8266

sendData("AT+CWMODE=1\r\n",100,DEBUG); // 設定為STA模式

sendData(cmd,10000,DEBUG); // 取得連線(視AP連線效能作調整，預設7000毫秒)

sendData("AT+CIFSR\r\n",100,DEBUG); // 獲得IP

sendData("AT+CIPMUX=1\r\n",100,DEBUG); // 開啟多除連接模式

sendData("AT+CIPSERVER=1,8080\r\n",100,DEBUG); // 設定連接埠為8080

}

void loop() {

digitalWrite(13,1); //當ESP8266 連上AP，自動亮燈

String cipStart="AT+CIPSTART=0,\"TCP\",\"";

cipStart += Rec;

cipStart += "\",8080";

cipStart +="\r\n";

sendData(cipStart,10000,DEBUG); //延遲時間800毫秒可以自行調整

String Command = "/?X=A"; //這裡填入你要傳送的指令或數據

String cipSend = "AT+CIPSEND=0,";

cipSend +=Command.length();

cipSend +="\r\n";

sendData(cipSend,200,DEBUG);

sendData(Command,10000,DEBUG);

delay(5000);

}

String sendData(String command, const int timeout, boolean debug) {

String response="";

esp8266.print(command); // send the read character to the esp8266

long int time=millis();

do{

while(esp8266.available()) {

// The esp has data so display its output to the serial window

char c=esp8266.read(); // read the next character.

response += c;

}

if(response.charAt(response.length()-2)=='O'&&response.charAt(response.length()-1)=='K'){

time=0;

}

}while ((time+timeout) > millis());

if (debug) {Serial.print(response);}

return response;

}