Using the Command Line
Pairing a device:
1 Enter bluetoothctl to open Bluetooth control
discoverable on pairable on agent on (is already on) default-agent scan on
2 Wait for a message to appear showing the first Pi has been found:
[NEW] Device 12:23:34:45:56:67 devicename
3 Type pair with the mac address of the first Pi:
pair 12:23:34:45:56:67
4 Enter a PIN
4 On the first Raspberry Pi again:
Link to device RFCOMM0
Following the following webpage
https://www.raspberrypi.org/forums/viewtopic.php?t=154651
Install the Bluetooth service (needed only once)
1) sudo apt-get install bluetooth bluez blueman
bluetooth.service - Bluetooth service
Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled)
Active: active (running) since Fri 2016-07-15 21:44:38 UTC;- Bind the device
- sudo rfcomm bind 0 xx:yy:zz:59:09:FF
Read and write script
https://www.instructables.com/id/Read-and-write-from-serial-port-with-Raspberry-Pi/
#! /usr/bin/python
import serial
bluetoothSerial = serial.Serial( "/dev/rfcomm0", baudrate=9600 )
while 1:
x=bluetoothSerial.readline()
print x