Let's Make Robots!

hall effect

Does your bedside table give light when you open it? In a discussion with a carpenter about his furnitures I asked about the usage of electronics in his creations. … Read more
This is Tilter, my rideable self balancing robot. I've been working on this here and there for a good few months now, with a total ban on other personal projects, … Read more

Homemade digital compass

Some time ago OddBot posted this circuit for a homemade digital compass based on hall effect sensors:

Compass_Schematic.jpg

Unfortunately CircuitBurn couldn't make it work. However I'm inclined to try again. A cheap DIY compass would be great.

So if anyone has ANY idea as to how this could be achieved let's hear it. It could be an improvement on OddBot's circuits or something completely different and wacky :D