Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: frodonr on March 05, 2012, 12:09:17 PM

Title: Help two control 2 wheel chair motors
Post by: frodonr on March 05, 2012, 12:09:17 PM

Hello there, I'm lookin for some help! I'm makin an rc car driven by 2 wheel chair motors and powered by 2 - 12v car batteries that drives like a tank. I know i need two build two H-bridges one for each motor. The problem I'm havin is that i dont know what i can use to control them would a normal rc and transmitter and receiver be ok? If any one could help would be grate, a list of parts (cheap would be grate) or another way of doin this would be cool!

Title: Re: Help two control 2 wheel chair motors
Post by: Mastermime on March 05, 2012, 12:15:10 PM

You could use a Sabertooth motor driver such as the 2x25. http://www.dimensionengineering.com/Sabertooth2X25.htm (http://www.dimensionengineering.com/Sabertooth2X25.htm)

Sabertooths motor drivers have an RC mode that can be used with a normal transmitter and receiver.

Title: Re: Help two control 2 wheel chair motors
Post by: frodonr on March 05, 2012, 12:49:40 PM

Thanks for that but $124 is alot, is there any other way? With this would i need two buid the two H-bridges? Thanks for gettin back so quick.

Title: Re: Help two control 2 wheel chair motors
Post by: joe61 on March 05, 2012, 03:29:53 PM

Take a look at http://www.pololu.com/catalog/category/10. (http://www.pololu.com/catalog/category/10.) Depending on how much current you'll be dealing with one of them may work for you.

Joe

Title: Re: Help two control 2 wheel chair motors
Post by: robotcoder on March 05, 2012, 11:39:55 PM

I am building a tracked RC robot similar to what you described and I am using the 2x25 Sabertooth. It is really easy to setup with the RC receiver.  It is worth the money.