Data Sheet
AlphaBot 2 User Manual     
44 
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After  restarted  the  RPi,  enter  the  command  hciconfig  (similar  to  the  command 
ifconfig) to check the Bluetooth service.   
If the Bluetooth has been working, you will see the device hci0 displayed on the 
screen. When the Bluetooth does not work, no Bluetooth device can be identified.   
Note:  If  the  line  dtoverlay=pi3-miniuart-bt  exists  in  the  file  /boot/config.txt,  it 
should be commented out.   
5)  Connect to Bluetooth device 
Input the  following command to enter the  Bluetooth control interface  (you can 
input the command help to check the command list after entered the interface). 
sudo bluetoothctl 










