Drive problem

Submitted by simonbugler@gma... on Wed, 12/20/2017 - 15:15

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Hi

I'm using the monsterSequence.py example in testMode

PerformDrive causes just two motors to turn - one left and one right

PerformSpin works as expected - all four motors spin correctly

Any ideas where to start troubleshooting?

Out of interest I connected a pihut(ps3 type) controller and ran monsterJoy and only two motors ran - and I only get forwards and reverse

piborg's picture

piborg

Wed, 12/20/2017 - 16:16

Last time someone had this kind of behaviour it turned out to be a mistake with the wiring between the ThunderBorg and the motors.

The ThunderBorg screw connections on a MonsterBorg should be as follows:

  • M1- is connected to the red wires on both right side motors
  • M1+ is connected to the black wires on both right side motors
  • GND is unconnected
  • V+ is unconnected
  • M2- is connected to the black wires on both left side motors
  • M2+ is connected to the red wires on both left side motors

If the PerformDrive function in the monsterSequence.py script is not working then all of the other scripts will have trouble as well.

simonbugler@gma...

Wed, 12/20/2017 - 17:04

Thanks!

I was worried about that but wanted to see if anything obvious before dismantling it :)

It was a couple of the black wires swapped around :( trouble with wiring at 1am! anyhow all sorted now - thank you

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