# Trying to control servo grabber on ROV

**URL:** https://discuss.bluerobotics.com/t/trying-to-control-servo-grabber-on-rov/22254
**Category:** General Discussion
**Created:** [January 9, 2026, 4:04pm UTC](https://discuss.bluerobotics.com/t/trying-to-control-servo-grabber-on-rov/22254 "2026-01-09T16:04:57Z")
**Posts on this page:** 1
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### Author: ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/13297_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)
#### Post date: [January 9, 2026, 5:51pm UTC](https://discuss.bluerobotics.com/t/trying-to-control-servo-grabber-on-rov/22254/2 "2026-01-09T17:51:08Z")

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Hi @daveycleaning -  
Assuming you’re using the latest version of ArduSub, you don’t actually want to set the servoFunction to gripper, but Actuator1. You then map Actuator 1 functions to the desired buttons in Cockpit.  
See this [thread](https://discuss.bluerobotics.com/t/ardusub-4-5-5-more-intuitive-output-mapping-and-broken-grippers/21533) for more info.

A big update to the BlueROV2 guides to transition away from QGC to Cockpit and BlueOS is coming!

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