So, I've been tinkering around (as I do) with some old toys that have these proprietary little servos in them. They have 5 wires (2 motor, 3 pot) and no controller board. The servos work, and I've been able to play around with them a little bit with an hbridge (L293D) and pot. I'd like to be able to attach these guys with the standard 3-wire connector like you find on most RC servos. So, I'd like to make a little control board for each one, but I have no idea where to start. I've been internetting for weeks, and I've only found schematics for generating PWM, but not consuming it and adding logic to control the servo. I can control them with my arduino, but I'd like to find more of a "hardware" solution, as it might be nice to hook them up to one of those lovely 16-channel servo shields. So, any information would be most helpful.
Relevant info: The servo consists of a 3v motor and a 5k pot.
zoomkat:
May not be easy. The below has some info on what is in an analog hobby servo internal controller.
Awesome! That's a great place to start! Great things are never easy! Thanks!
Robin2:
Regular servos are so cheap - is it worth the time it would take?
Oh, I understand that they are cheap, and my time is not. The plastic housings for the servo are proprietary, so I have a better chance of making a controller than I do of 3D printing a new housing that can take the parts of an RC servo.
I would use a PID feedback library on board the Arduino controlling the thing but if you want it to be more "hardware" then pull the circuit board out of another servo.
