Erratic Thrusters


#1

Ive been away from my OpenROV for sometime, but now coming back to it. Ive updated to the latest code, and flashed the Arduino.
But i seem to get erratic movement on the thrusters, e.g. pressing ‘up arrow’ (to move forward) only one thruster spins…then when I try again the both spin, another example in the vertical thruster sometimes only works in one direction?
The OpenROV was built fully assembled so I dont expect any problems from that side, I have changed the thusters to BlueROV ones (the BlueROV OpenROV kit). I have read about calibrating the ESCs but I dont understand how to do that on a 2.8 version as the ESCs are soldered onto the main board.

Any help, much appreciated.

Thanks, James


#2

Hello James,

My problem is very close, the Left thruster who work nice, but the two other do not want move! i just have a “beep” from the ESC.

I do not understand to calibrate ESC … is soldered !


#3

I have heard of the thrusters “sticking” when they have not been used for a while. You might want to go into the diagnostics section of the cockpit and run them individually. As I understand it, the -1 and +1 settings are full power level 5 and may break it free to spin better. The other item is to check for a bad connection on your wiring.

I also have heard that the Blue ROV thrusters may draw too much power through the OpenROV board if you run them at full power for too long. Hope this helps!