Rover moves in reverse upon power up

[craigmmcconnell]

I have just constructed my A4WD1 and I programmed the test code from the tutorial (a4wd1tst1) onto it. As soon as I power up the robot, it begins moving in reverse at “10%”. I press the appropriate buttons to increase the throttle by 10% and then it sits still. I am brand new at robotics and programming so forgive me if this is a dumb question.

Is this a problem with the code or with the Sabertooth 2X10 R/C Motor Controller? How do I fix it?

Thanks

[fish-5]

@craig.m.mcconnell

I have just constructed my A4WD1 and I programmed the test code from the tutorial (a4wd1tst1) onto it. As soon as I power up the robot, it begins moving in reverse at “10%”. I press the appropriate buttons to increase the throttle by 10% and then it sits still. I am brand new at robotics and programming so forgive me if this is a dumb question.

Is this a problem with the code or with the Sabertooth 2X10 R/C Motor Controller? How do I fix it?

Thanks

Try turning the auto calibrate dip switch on, and see if you still have that problem. If you don’t, then the ‘center’ on your Sabertooth is slightly off.