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RP2350 GRBLHAL Control Board

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Connect handwheel

For the controller handwheel, only the handwheel from our store is supported.

 

It uses RS232 one-way serial communication and requires only 3 wires to work.

 

Handwheel Usage and Wiring

 

The red wire (5V) and black wire (GND) power the handwheel – connect them to any 5V and GND on the controller.

 

The green wire or the remaining wire connects to the MPG interface.

 

 

 

It is recommended to connect when the controller is powered off. Hot-plugging has a very small chance of damaging the SP3232 chip, which would cause the handwheel to stop working.

 

If you already have a handwheel, you can purchase the universal handwheel adapter board sold in our store.

 

Wire it the same way as your original handwheel – solder the axis selection, multiplier selection, and encoder A/B to the adapter board, then connect 5V, GND, and MPG to the control board as described above.

 

No need to disassemble or damage your original handwheel – simply solder the corresponding wires to this adapter board.

 

This essentially completes an adapter conversion.

 

 

 

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Updated on 2025年11月20日
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