12-15-2017, 09:52 AM
(12-14-2017, 07:32 AM)Dunkles Wrote:(12-12-2017, 07:42 PM)kresty Wrote: I'm not sure if there are specifics for a Treadwell. I, personally, would hook up two "scooter" motors running @ 12 volts, one to each track. Presumably they would need to be geared down a little. Since I used chains on Artoo's feet, I might do that. How big at Treadwell's wheels? Similar gear ratio might be appropriate.
I'd use a cheap transmitter that can do V-tail, and hook it to a couple Pololu simple motor controllers. IIRC the motor controllers have a regulator, so you could use one (not both) to power the receiver (to bump it down from 12V). Or you could use a separate receiver.
We have a wiki page about R/C http://www.rebeldroids.net/wiki/index.php?title=R/C and R/C for tank drives http://www.rebeldroids.net/wiki/index.ph...=Turnigy9X
thank you very much for this response! this is the most information about the treadwell i've ever gotten, but i still have a few questions. would i hook up 2 pololu controllers together, with them both connecting to a v tail transmitter, then have a receiver connected to 12v batteries and the two motors (which would probably be geared down with a 4/1 gearbox ) and have the batteries connected to the motors as well? i'm sorry for all the questions, i have no problem building things, i'm relatively good, but i am absolutely clueless with wiring and electronics, i thank you very much for your help again. thanks for all responses
-Dunkles
A receiver for an R/C toy expects 5V or 6V, so you can't hook them up to a 12V battery directly. R/C cars use a "BEC" (Battery Eliminator Circuit - which converts the motor's battery to 5 or 6 volts for the receiver. (Way back when they use to have a separate receiver battery).
Robots tend to have different motor controllers, so they'd need a voltage regulator to go from 12V to 5V - sometimes those can be built-in, sometimes they're separate components. 12V +/- wires goes in from the battery, and 5V +/- wires go out to the receiver - https://www.pololu.com/category/131/step...regulators has a big list, you'd want at least 12V in and 5V out.
Then, separately, 12V + and - go to the motor controllers (you'll need two controllers for two motors, or a dual controller that powers two motors), and then the two wires to the motor itself from the controller. The motor controller probably needs to be able to handle 4+ amps. https://www.pololu.com/category/94/polol...ontrollers the 18v7 would probably work (two of them)