RPI3上使用java控制Bluetooth

技术经验 • dingxiao • 阅读数:2440 • 2018年7月16日 15:37

RPI3上使用java控制Bluetooth

RPI3上使用java控制Bluetooth一直是自己想实现的功能，今天在外媒java bluetooth终于让我找到了方法，现将操作过程简单记录下。RPI3使用最新debian镜像（20170302）作为操作系统，并在3.5TFT上运行系统程序。

### 1.Step 1: Enable Bluetooth on the Raspberry Pi 3 ###

  sudo apt-get update
  sudo apt-get dist-upgrade
  sudo apt-get install piclone geany usb-modeswitch pi-bluetooth
  sudo apt-get install python-pigpio python3-pigpio

2.Step 2: turn on bluetooth control mode

  sudo bluetoothctl
  agent on
  default-agent

3.Step 3: 安装Android蓝牙应用BlueTerm，与PI3进行蓝牙BLE通讯

  scan on
  You will see the MAC Addresses of nearby devices
  Discovery started
  [NEW] Controller XX:YY:ZZ:AA:BB:CC #Your Pi's MAC Address
  [NEW] Device DD:EE:FF:GG:HH:II #Your Android's MAC Address
  To pair the phone, replace MAC Address with your own
  pair DD:EE:FF:GG:HH:II
  [agent] Confirm passkey 123456 (yes/no): yes
  [CHG] Device DD:EE:FF:GG:HH:II Modalias: bluetooth:xxxx
  [CHG] Device DD:EE:FF:GG:HH:II UUIDs
  <bunch of numbers>
  [CHG] Device DD:EE:FF:GG:HH:II Paired: Yes
  Pairing successful
  [CHG] Device DD:EE:FF:GG:HH:II Connected: No
  [CHG] Device DD:EE:FF:GG:HH:II Trusted: Yes

4.Step 4: Sending and Receiving Serial Data

  sudo nano /etc/systemd/system/dbus-org.bluez.service
  ExecStart=/usr/lib/bluetooth/bluetoothd -C
  ExecStartPost=/usr/bin/sdptool add SP
  sudo rfcomm watch hci0

5.Step 5: 通过命令连接到rfcomm0观察RPI3蓝牙BLE接收到的数据

  cat /dev/rfcomm0

   ！！！需要注意的是java测试代码必须连接手机APP，并在“sudo rfcomm watch hci0”“cat /dev/rfcomm0”和指令执行之后运行。


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