Hello everyone, my first post so I hope I do it right.
I am building a 2 wheeled, 1 caster, robot base. For the drive I am using the gears and motors out of a Mattel Jeep at 12V DC. These are controlled by a Solarbotics L298, which I am in turn controlling with an Arduino, that will one day be controlled by an Apple IIGS motherboard.
The question I have is what would be the best/cheapest way to measure the rotation of the 2 8" lawn mower wheels. I need to compare the rotation with the Arduino because the 2 DC motors do not run at exactly the same speed. The wheels have a little wobble in them that I can't seem to remedy, but still works great.
I am including a video to answer (hopefully) all questions.