This is a custom-made CNC pendant for use with my CNC mill + lathe setups. I use bCNC running on a laptop to communicate with the CNC controllers on my machines via USB.

The pendant has two modes:

• Bluetooth: Communicates with a basic CNC controller board (like those which often come with a CNC 3018) using a Bluetooth HC-05 which directly sends GCode commands via serial
• WiFi: Utilizes the bCNC web pendant to receive HTTP requests containing GCode commands.

BoM:

• LILYGO T-Display (ESP32 dev board w/ color LCD + LiPo battery charging)
• 19mm Latching E-stop Button
• 3.7V 1800mAh 103450 LiPo Rechargeable Battery
• 100PPR 6 Terminal Hand Wheel Pulse Encoder
• 4x Cherry MX Switches
• 4x X-keys Keycaps (Customizable Keycaps)
• HC-05 Bluetooth Module (Optional: If using BLE mode with a compatible CNC controller)
• 6x M3x20mm machine screws
• 6x M3 nuts

For more information on the firmware which runs on this device see here:
https://github.com/jpoles1/CNC-Pendant-Firmware