DC motors control

[joaocunha99]

I wanted to control DC motors (12V) with the MR-C3024 board.
Anyone know if it is possible and how can I assembly and programming RoboBasic.
Thanks.

[i-Bot]

There are 3 PWM outputs on the C3024 which could be used to drive motors at variable speed. You would need an external high current bridge driver to handle the voltage and current of your motor. The PWM outputs are only low current 5V outputs. A bidirectional bridge would normally use two PWM outputs per motor, but you could use a digital output as the direction to one half of the bridge and PWM to the other half.

[joaocunha99]

Thanks for the ideas.
I am familiar commands to servos and speed.
What is the digital control to control DC motors with a bridge H.
I've never used PWM on board. How to control speed and direction?

[i-Bot]

This gives some background to H bridges an their control of DC motors.
http://www.mcmanis.com/chuck/robotics/tutorial/h-bridge/index.html

There are commands in Robobasic to control the PWM outputs.

With higher voltages and currents it is possible to damage the C3024 if you are not careful. As an alternative there are some DC motor controllers that can be driven with a servo signal nd operate like a continuous rotation servo.

[joaocunha99]

The H bridge is made.

How to control the dc motors.
What are the codes to use?

Can anyone help.

Thanks.