#include <BluetoothSerial.h>
BluetoothSerial BT;

void setup() {
Serial.begin(115200);
BT.begin("Test030");//請改名
pinMode(15, OUTPUT); //綠色LED
pinMode(2, OUTPUT); //黃色LED
pinMode(4, OUTPUT); //紅色LED
}

void loop() {
//檢查序列內是否有資料
while (Serial.available()) {
//讀取序列資料
String Sdata = Serial.readString();
//傳輸給藍芽
BT.print(Sdata);
}

//檢查藍芽內是否有資料
while (BT.available()) {
//讀取藍芽資料
String BTdata = BT.readString();
//顯示在序列視窗
Serial.println(BTdata);
//檢查藍芽資料及相對的指令
//接收到"1"：開綠燈
if (BTdata == "1") { digitalWrite(15, HIGH); }
//接收到"2"：關綠燈
if (BTdata == "2") { digitalWrite(15, LOW); }
//接收到"3"：開黃燈
if (BTdata == "3") { digitalWrite(2, HIGH); }
//接收到"4"：關黃燈
if (BTdata == "4") { digitalWrite(2, LOW); }
//接收到"5"：開紅燈
if (BTdata == "5") { digitalWrite(4, HIGH); }
//接收到"6"：關紅燈
if (BTdata == "6") { digitalWrite(4, LOW); }
}
delay(1);
}