Need Help: PX4 Pixhawk Mini 6C (Rover E1L) Setup for Boat – Not Working After Latest PX4 Update

PX4 Autopilot
1

Hello everyone,

I’m trying to set up a PX4 Pixhawk Mini 6C (Holybro) using the Rover E1L configuration for a boat, but I can’t get it to work correctly after updating to the latest PX4 firmware.

Here’s my hardware setup:

  • Flight Controller: PX4 Pixhawk Mini 6C (Holybro)

  • GPS: Holybro M9N

  • Radio System: Skydroid T10

  • 1 ESC for the main motor

  • 1 Servo for the rudder

  • 2 Extra Servos (optional) for future functions

My goal is to have the Pixhawk control the motor through the ESC and steer the rudder servo.
I’ve successfully uploaded the latest PX4 version and connected via QGroundControl, but:

  • I can’t get the outputs for throttle and steering to work properly

  • I’m unsure which MAIN/AUX outputs should be assigned for the motor and rudder

  • I don’t know the correct Rover parameter setup for a single-motor boat

  • The Skydroid T10 radio connection seems fine, but control inputs don’t move the servos

If anyone has experience with PX4 on boats or can share a working Rover/boat parameter setup, I would really appreciate your help.

Thanks in advance,
Dave

2

Make sure you’re using SYS_AUTOSTART 13000 (Rover Differential) or 13002 (Boat). On the Pixhawk 6C, throttle and steering usually map to MAIN1 (throttle) and MAIN2 (rudder). Also disable safety switch and arm — outputs won’t move while disarmed.