Centering turning

[hullingerbr]

Hello. I was wondering if it was possible to make it so that when you let go of the joystick, the motor returns to a pre-set position. Any help?

[Brandon_L]

Joystick: Get axis then if whatever axis=0 set motor to your speed. If you can't get it from that I could make an example.

EDIT: I don't have a robot or a cRIO in front of me so this would be pretty vauge but this is the idea:

[Alan Anderson]

Originally Posted by hullingerbr

Hello. I was wondering if it was possible to make it so that when you let go of the joystick, the motor returns to a pre-set position. Any help?

That's too large a topic to answer quickly in a forum like this. Do a web search (or even just a Chief Delphi search) for "position PID". You'll need an absolute position sensor on whatever your motor is controlling; quadrature encoders alone won't be enough.

[airnate]

We use potentiometers attached to the steering axis to give us feedback on the current steering angle. From this we can actuate the motors to steer to a specific angle.