Originally published at Ohnitsch Cartoons. You can comment here or there.

While trying to create a circuit that detects whether water is flowing through a pipe by measuring the vibration with a piezoelectric sensor, just to see what happens I taped the sensor around my finger and - to my surprise - got values that were a very noise-free ( Read more... )

This is a little afternoon-project I did today! It’s a 2-axis mount for my webcam that allows it to be rotated 180° in each direction from anywhere in the world!
I used 2 cheap servos, random Lego parts and an Arduino Chris gave me last year. I wrote a little Program in java that acts as a server and forwards commands to the microcontroller and a ( Read more... )