I bought the motors and escs from bluerobotics some time ago and built a bathymetric survey boat. Everything works fine, but the only problem is that I have never been able to reverse in manual mode with the remote control. I checked the pixhawk parameters on SERVO1 and SERVO3 and they are correctly MIN=1100, TRIM=1500 and MAX=1900. The remote control, with the stick all the way down sends 1100, halfway 1500 and at maximum 1900. The problem is that with 1100 (stick all the way down) the motors are stopped, they are not all the way back. With the stick halfway (1500 the value sent), the motors power is at 50% and with the stick all the way forward we are at maximum forward. Theoretically the ESCs do not need to be calibrated… what can I do to activate reverse?
Hi @PaoloN -
Have you checked the box in QGround Control for “allow negative thrust” as mentioned in the setup guide for the BlueBoat?
If that doesn’t do the trick, I’d doubt that your ESCs work in reverse!
Thanx! But I have not such command… I can’t see the ‘joystick’ setup in my configuration…
Hi @PaoloN -
Are you running the recommended version of QGround Control, 4.2.8?
Are you running the latest stable version of ArduRover for your USV? And does it use BlueOS?
Hi @PaoloN,
this thread is a couple of months old already, but on the chance you are still checking in:
You seem to be using a good old RC and not a Joystick. I ran in the exact same problem when I integrated an RC into our BlueBoat and calibrated the RC input in QGC. It seems you have to set additional parameters in Ardurover for use with the RC.
Ironically, I found the solution that worked for us in the PX4 forum! (Perhaps parameters for Ardurover and PX4 have the same name in this case?) The Ardupilot Forum has a similar thread, but the solution is laid out less clearly. As recommended in the PX4 forum thread, I only had to set RC3_TRIM to the midway point (typically 1500).
I don’t know how you have set up your RC, so be careful if you try this. The way I have configured our BlueBoat, RC3_ parameters are the ones that affect the throttle, as they should.