Let's Make Robots!
I thought it was time to tell a little about the application I'm working on these days. Though very far from finished, it's starting to look like something bit by … Read more

Accelerometer.. Which to buy?

I wanna get an accelerometer for my bot.

Look maaa', no tools! :D Well, that's not entirely true, but it isn't far off. I have constructed this robot with a minimum of tools (and materials) , for the … Read more

Inverse kinematics

Been trying to understand inverse kinematics for programming my quadruped Crap-Crab. I started out by reading Wikipedia's version, which lost me completely (WTF?). But then I found the explanation by this guy and it turns out, as I thought to begin with, that it's simply a matter of applied trigonometry.

Here is exactly what I need in a nutshell:

Some years ago I made this software oscilloscope and shared it on this site. Then a couple of years passed without me logging on, and in the meantime the link to … Read more

Servo problems!

I'm having a lot of problems with the servos I'm using to build a quadruped robot. I should start by mentioning that I bought the servos from Dagu like 4 years ago, BUT most of them had never even been unpacked until recently.

The problems are the following:

Tiny swarm robots


Is this cool or what?

Just had to share it :)

Homemade digital compass

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


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