I’m thunderstruck by this project.

I love these things, have used some from Pololu with PID/potentiometer feedback to servo big gearmotors, to turn the steering rack on a car. RC-style PPM is a decent protocol for this…it’s refreshed a lot so occasional noise isn’t a problem, works over long distances, and anything can generate it.

Hmmm…
I’m with dmitryg, looks like it’s just an ESC
Would be better if it had a potentiometer input for position feedback, then it could be used as a custom sized servo.
Cool that he made his own ESC, but you can buy a readymade 30amp ESC for under $10USD

Wow, this isn’t even open source…
and look he’s selling a kit

This would be a passable “hack” had he documented the build and provided code but really this is just free advertising for his product.

20usd for a closed source kit of an esc controller without reverse…

ARE YOU KIDDING ME ?

Here… for 30USD you got a 60Amp forward 30Amp back, from tamiya no less

http://www.rcmart.com/catalog/rc-brushed-tamiya-45041-teu104bk-p-29775.html?cPath=293_51

And here on way esc starting 10USD for 12Amps http://www.rc-fever.com/index.php?keyword=esc&main_page=advanced_search_result&search_in_description=0

Thanks Amnon I’ve been wanting to do that for a while!

Surely if you want something like this you can simply take the circuitboard from a servo and keep the potentiometer so for manual fine tuning, or put a couple of resistors in it’s place.

That’s what I’ve done when I once turned a wired toy car into an RC toy car, use a circuitboard from a useless servo (stripped gears) as an ESC for the small motor already in the toy car – something I’m planning on doing to my Hitari K.I.T.T. because it drives like crap and needs an upgrade to a proper proportional control.

This is something I have been waiting for. I am building a large robot, the motors are 35 to 40 Amps at 12 Volts. I wonder or I could drive a large H-Bridge from the output of the RCDC, Currently I am using the circuit boards of servos.