How to control a DC motor to run in both directions

Step 3: Applications

When I learned to make this circuit (I think I was 9 years old) I made a simple, little car that could drive forwards and backwards.

Now all you newbies out there: go make some creative with this circuit and post some pictures of it.

Comments

[ricwip55]

Good clear instructable. This is a question rather than a comment: can this be 'scaled' or 'beefed' up to switch a 12v starter motor running off a car battery ? Much higher currents - I'm trying to build a boat trailer 'tractor' . Thank you.

[Artificial Intelligence]

 Sure, That would be possible. You'll just need a pretty heavy duty switch!

[profguy]

Thanks for the clear instructions! This has really helped me. I am building a robot for my son with some spare parts that I got for RC Tanks . We are trying to build this as cheaply as possible and this has really helped! Thank You.

[abhinavrana]

u have not mention the mechanism of seperate switch so plz do it .................

[neardood]

wow that is really simple! when I tried to do something like that I used heaps of diodes and sh1t like that but this works even better. Too bad I dont have a three-way switch like that on in my workshop anyway...

[Artificial Intelligence]

You could just use a 2 position switch and a separate switch to turn it on and off.