Hello! I am pretty new with Pixhawk and MissionPlanner and I need to set up communication between Sabertooth 2x25 with Pixhawk (I need to work with rover). I read some of discussions here but I couldn't find anything that would help me. 


Is there a possibility to change PWM frequency on main out channels through MissionPlanner - for steering and throttle (but without Taranis radio). 


Also I need to ask is the PWM level 3.3 V fixed?


I hope someone could help me with this. Thank you.

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