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Tuesday, April 12, 2011

Easy, Reversible Motor Control for Arduino (or any Microcontroller)

I just did another Instructable - Easy, Reversible Motor Control for Arduino (or any Microcontroller) (wow - that's a mouthful...).

It is the result of my effort to come up with something less annoying to construct than an H-Bridge - using just locally available parts in the process (under $9 at Radio Shack!).

If you order components online - you can get the cost down around $4 each. Pretty good considering it can handle 5 amps.

I find documenting projects online highly satisfying. It lets me set aside worthwhile projects that I've gotten bored with - without feeling I'm abandoning them.

This particular Instructable is hypothetically a subcomponent of an upcoming homebrew CNC system.

Stay tuned...


  1. Disculpa.. Queria preguntarte: ¿Como hisicistes el programa que le pasastes al modulo arduino? es mi unica duda o si me podrias decir cual es si es que quieres claro

  2. Hi,

    Thank you...can you post the arduino source code please... i seam to have a problem with my relay.... it vibrates very fast and not sure why

    1. Sample code is here:

      You might have the enable and direction pins mixed up.

      Good luck!