Initializing Raspberry Pi

References

• http://blog.xcoda.net/82

• https://m.blog.naver.com/lovespreads/221179834970

• Raspberry pi setting OTG

• Bluetooth communication between raspberry pi and arduino

• Bluetooth pairing

Logs

Bluetooth manipulation on Raspberry Pi

$ sudo apt-get install bluetooth bluez bluez-tools
$ sudo pip3 install pybluez
$ sudo bluetoothctl

$ means a writable line in Bash(Terminal). type the commands just after $ signs.

Likewise, # means a writable line in "bluetooth" program. type the commands just after * signs.

[bluetooth]# agent on
Agent registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# scan on
Discovery started
[NEW] Device 00:18:E4:34:D1:C9 00-18-E4-34-D1-C9
[CHG] Device 00:18:E4:34:D1:C9 LegacyPairing: no
[CHG] Device 00:18:E4:34:D1:C9 Name: HC-06
[CHG] Device 00:18:E4:34:D1:C9 Alias: HC-06
[CHG] Device 00:18:E4:34:D1:C9 LegacyPairing: yes
[bluetooth]# pair 00:18:E4:34:D1:C9
Attempting to pair with 00:18:E4:34:D1:C9
[CHG] Device 00:18:E4:34:D1:C9 Connected: yes
Request PIN code
[agent] Enter PIN code: 1234
[CHG] Device 00:18:E4:34:D1:C9 UUIDs: 00001101-0000-1000-8000-00805f9b34fb
[CHG] Device 00:18:E4:34:D1:C9 ServicesResolved: yes
[CHG] Device 00:18:E4:34:D1:C9 Paired: yes
Pairing successful
[CHG] Device 00:18:E4:34:D1:C9 ServicesResolved: no
[CHG] Device 00:18:E4:34:D1:C9 Connected: no
[CHG] Device 00:18:E4:34:D1:C9 RSSI: -58
[bluetooth]# connect 00:18:E4:34:D1:C9
Attempting to connect to 00:18:E4:34:D1:C9
[CHG] Device 00:18:E4:34:D1:C9 Connected: yes
[CHG] Device 00:18:E4:34:D1:C9 ServicesResolved: yes
Failed to connect: org.bluez.Error.NotAvailable
[CHG] Device 00:18:E4:34:D1:C9 ServicesResolved: no
[CHG] Device 00:18:E4:34:D1:C9 Connected: no
[CHG] Device 00:18:E4:34:D1:C9 RSSI: -71
[CHG] Device EA:BB:3D:70:DF:5A RSSI: -83
[CHG] Device 00:18:E4:34:D1:C9 RSSI: -57
[bluetooth]# trust 00:18:E4:34:D1:C9
[CHG] Device 00:18:E4:34:D1:C9 Trusted: yes
Changing 00:18:E4:34:D1:C9 trust succeeded

$ sudo rfcomm bind 0 00:18:E4:34:D1:C9
$ echo "hi" > /dev/rfcomm0