Motor controller

Community General Discussions
1

I am looking for a basic bi-diretional dual motor controller with a very low price. It must be compadable with a standard breadboard and an arduino. I am looking at controlling a tamiya twin motor (1.5-3v, stall voltage in 2000 mA). By the way,  I am looking making an h-bridge but I have no idea how to make one :(

2

L293D

L293D is the chip you need. Hit ebay, you can get it from Shenzhen for $2, free shipping.

3

Heres a project with your gearbox, L293D and Arduino all togethe

Its a popular combination, here is my take, there are lots of others that might be closer to what you want.

Part 1

http://rcarduino.blogspot.com/2012/05/rc-arduino-robot.html

Part 2

http://rcarduino.blogspot.com/2012/05/interfacing-rc-channels-to-l293d-motor.html

Duane B

rcarduino.blogspot.com

4

With a stall current of 2A

he may need the SN754410 instead. My question is, how do you power a 3v motor with a motor driver that requires at least 4.5v for the motor voltage?

5

Another solution

Actually there is another solution. You can swap out the motors for a better one that draws significantly lower current and run heaps smoother.
http://www.pololu.com/catalog/product/1117
While a more expensive solution. I found it was worth it.