arduino蓝牙通讯代码_arduino 联接蓝牙模块

硬件连接后，连上电脑ARDUINO IDE 并上传相关代码测试。代码片断为：

#include

SoftwareSerial BT(10, 11);

// creates a "virtual" serial port/UART

// connect BT module TX to D10

// connect BT module RX to D11

// connect BT Vcc to 5V, GND to GND

void setup()

{

// set digital pin to control as an output

pinMode(13, OUTPUT);

// set the data rate for the SoftwareSerial port

BT.begin(9600);

// Send test message to other device

BT.println("Hello from Arduino");

}

char a; // stores incoming character from other device

void loop()

{

if (BT.available())

// if text arrived in from BT serial...

{

a=(BT.read());

if (a=='1')

{

digitalWrite(13, HIGH);

BT.println("LED on");

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