newbie servo issues

Jared5755

I just got two continuous servos and a servo controller board from parallax. I've tried connecting the servos directly to my microcontroller (with their own power supply of course) and using a PWM command to make the servo move. No matter what the value is that I output, the servo always turns clockwise at the same speed. I know I don't have much information here, but I really don't know what to do next. I've tried adjusting the pot on the side of the servo, but that does nothing to it.

Thanks a lot,

Jared

dandreae

Please download the Robotics text and look in chapter 4 and it will explain how to control the·servos.· Here is a link for the download of the text:· http://www.parallax.com/detail.asp?product_id=28154·.· Are you using the Parallax Servo Controller or the servo sockets on the Board of Education?



Dave


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Dave Andreae

Tech Support
dandreae@parallax.com
Http://www.parallax.com



Post Edited (Dave Andreae (Parallax)) : 6/29/2005 6:57:29 PM GMT

Roger Ray

I had a similar problem a while back.· Make sure that your 9V Stamp power supply and your 6V servo power supply all have a common ground.· Otherwise exactly what you describe and other strangeness occurs.



Roger