# Questions about installing GroundControl on MacOS

**URL:** <https://forums.maslowcnc.com/t/questions-about-installing-groundcontrol-on-macos/2091>\
**Category:** Troubleshooting\
**Tags:** groundcontrol\
**Created:** [January 28, 2018, 12:27pm UTC](https://forums.maslowcnc.com/t/questions-about-installing-groundcontrol-on-macos/2091 "2018-01-28T12:27:18Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![blurfl](https://yyz1.discourse-cdn.com/flex031/user_avatar/forums.maslowcnc.com/blurfl/32/9_2.png) [@blurfl](https://forums.maslowcnc.com/u/blurfl)\
**Post date:** [January 28, 2018, 11:44pm UTC](https://forums.maslowcnc.com/t/questions-about-installing-groundcontrol-on-macos/2091/5 "2018-01-28T23:44:06Z")

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> [@drock](#):
>
> so nothing more to do

If you’ve got a spare Arduino Mega available, there’s a way to “play around” with GroundControl while you wait 😄for the kit…  
In the firmware look in the file ‘cnc\_cntrl\_v1/Config.h’ and uncomment the line  
// #define FAKE\_SERVO // Uncomment this line to cause the Firmware to mimic  
(it becomes:)  
#define FAKE\_SERVO // Uncomment this line to cause the Firmware to mimic

Upload to the Arduino Mega and you can tell GroundControl which port it’s connected to (quit Arduino first) and it will think there are motors attached to the Arduino. You can ‘drive around’ the screen or run a gcode cut file and watch the virtual router make virtual chips!

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