ARM®mbed OS入门开发物联网初步 Nucleo+mbed 与 HC-06 蓝牙模块通信

[复制链接]

anywill 提问时间：2016-10-24 08:54 /

本帖最后由 anywill 于 2017-12-6 20:52 编辑

ARM®mbed OS入门开发 Nucleo F401RE mbed 与 HC-06 蓝牙模块通信

首先,把nucleo固件更新到最新,

其次,必须装好虚拟串口驱动

蓝牙模块如下

Bluetooth HC-06	Nucleo ST F401RE
RXD	TX
TXD	RX

必须注意nucleo 默认的TX/Do and RX/D1 焊桥并没有连接,
大家参考此帖子连接即可

也可使用D10 and D2 pins . 此例程讲解通过手机和  PC terminal控制nucleo开发板小灯

#include "mbed.h"
Serial bt(D8,D2);//蓝牙在nucleo上的接口
Serial pc(USBTX,USBRX);//虚拟串口
DigitalOut myled(D13);//板载小灯
int main() {

bt.baud(9600);
//prints data on mobile

bt.printf("Connection Established");

//print data on pc terminal

pc.printf("Connection Established");
while(1) {
      //For reading and writing data from/to bluetooth HC-06
      //check if bluetooth is readable and execute commands to toggle LED
      if (bt.readable()) {
         char input_key=  bt.putc(bt.getc());
         //tutn on LED if "y" is entered
         if(input_key == 'y') {
            myled = 1;
            bt.printf("LED is ON");
         }
         //tutn on LED if "n" is entered

         if(input_key == 'n') {
            myled = 0;
            bt.printf("LED is OFF");
         }
      }
      //For reading and writing data from/to pc terminal

      //check if pc is readable and execute commands  to toggle LED
      if (pc.readable()) {
      char input_key=  pc.putc(pc.getc());
         if(input_key == 'y') {
            myled = 1;
            pc.printf("LED is ON");
         }

         if(input_key == 'n') {
            myled = 0;
            pc.printf("LED is OFF");
         }
      }
}

}
在安卓手机安装蓝牙串口助手Bluetooth SPP Manager app, 在PC安装串口调试软件HTerm software

手机与Bluetooth HC-06配对默认密码是1234
在HTerm 设置 COM port编号和 baud rate 为 9600 点击连接
在app输入Y/N点击发送即可控制LED