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Tag Archive 'direction'

Building a Motor Controller: Part 2 – Implementation

Posted in Projects on Jul 10th, 2010

Following on from Part 1, we’ve done our design and now it’s to put our prototype to the test, this will post won’t be as long as the design because all we need to do is test.

This is how our circuit looks to power 1 motor in 1 direction only.

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Building a Small Robot: Part 2 – Moving Forward

Posted in Arduino, Projects on May 18th, 2010

So we’ve got our parts and our motor controller so we are now ready to make this robot move forward, backwards and turn. I’m assuming you’ve put the wheels on the motors, mounted them to your design, used a gearbox if necessary and you do have a motor controller. Plus you also have the 9 volt battery and clip for Arduino.

In this part we will need:

  • Arduino Duemilanove ATmega328
  • 4 x NPN general transistors (e.g. PN100, PN2222)
  • 4 x 6.2K Ohm resistors (10K will do fine too)
  • Breadboard
  • Some wire

Example Schematic below

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