Notes:
LUNYEE Offline GRBL Controller works only with LUNYEE GRBL control boards. It may work with other GRBL controllers, but technical support is not provided for those uses.
Quick Start:
- Connect the Offline Controller to the Control Board using an 8-pin cable. The Offline Controller will power on once the Control Board has been powered up
- (Option) Connect PC by using USB cables to transfer g-code files into the Offline Controller.
- The diagram below illustrates the functions of the LCD screen:

The keys on the offline controller have the following functions:
Page | Key | Function |
---|---|---|
Main | Z+ (Press) | Switch Languages (English/Chinese) |
Main | Z+, Z- (Short Press) | Change Spindle Speed. (Adjust the PWM pulse frequency). Available only when spindle controlled by PWM in the control board. |
Main | Exist (Short Press) | Switch between max spindle speeds (1000/10000). |
Main | Y+ (Press) | Reset after triggered the limited switch |
Main | Y- (Press) | Back to origin |
File | X+/X- | Page Up/Page Down |