org.bluez.Error.Failed

# rfkill unblock bluetooth
# hciconfig hci0 up

References :
蓝牙设备上电提示Failed to set power on: org.bluez.Error.Blocked - pengrui18的专栏 - CSDN博客

ImportError: No module named 'btlewrap'

# pip3 install btlewrap

fatal error: bluetooth/bluetooth.h: No such file or directory

sudo apt-get install libbluetooth-dev

References :
c - Where is the bluetooth/bluetooth.h located in Linux? - Stack Overflow

debian auto pair bluetooth mouse

檢視接收器是否存在

$ hcitool dev

掃描藍牙裝置 (裝置可能需按着 connect 按鍵三秒以上) 

$ hcitool scan

手動連結

# hidd --connect aa:bb:cc:dd:ee:ff

自動連結  

與藍牙裝置連線 (repair：重新建立裝置) (default PIN code might be '0000')

# bluez-simple-agent hci0 aa:bb:cc:dd:ee:ff [repair]

加入信任裝置

# bluez-test-device trusted aa:bb:cc:dd:ee:ff yes

Reference :
Ubuntu 12.04 persistent bluetooth pairing