Turn on the machine with the power switch located at the front of the control unit.
Wait a few seconds for the Raspberry Pi to boot.
Minimize PlanetCNC’s window to see the Desktop (screenshot on the right).
Click the Bluetooth icon on the bottom right of the screen and choose “Add Device”.
Press the Bluetooth pairing button located at the back of the interface unit.
Your keypad should appear in the list of available devices.
Select your keypad and click “Pair”.
Make sure that your keypad is charged before following this procedure. You can use the micro-USB cable provided with your interface unit if it's not the case.
