continuous ratation servo and pic18f voltage question

whiz100

I've been using a parallax continuous rotation servo with a pic18f. I had it working for weeks but i discovered something about my power supply which was wrong. I changed the power supply and it os no longer working. I'm trying to workout if I've damaged the servo (and a bunch of other stuff) or now I have the power working correctly the circuit is just bad design.
I'm new to this stuff so I don't know what I'm doing - it's bit of trial and error.

the pic is on a 3.3v circuit and the servo is on a 6v circuit. the question is can i send the pwm on 3.3v or do I need to use a 6v pwm?

thanks
Peter

W9GFO

I use a 3.3v signal to control servos all the time. Make sure that the grounds are tied together, the ground of the servo should share the ground with the Pic18.

Rich H

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The Simple Servo Tester, a kit from Gadget Gangster.

whiz100

thank's I think i've fried it.