Circuits for Hobbyists - a Collection of Schematics to Build

More Circuits:

DIY Sous Vide Cooker

This DIY sous vide cooker was made by my friend Markus. He built it for about 1/10 of the price of the commercial cookers. And it made some really good chicken =) [youtube] A sous vide cooker is a machine for cooking food using a temperature controlled bath. You can take whatever you want […]

Digital Stopwatch Circuit

This digital stopwatch circuit is a circuit I built for testing some 7-segment displays. It consists of four displays that I control using a microcontroller. The microcontroller counts and makes sure the correct LED segments on each display is lit up. Check out the video below to see how I built it.

Timer Project with Gong

This is a timer project I recently made. I am really into productivity techniques and I think using the Pomodoro technique is a nice way of working when you need to be productive. You work hard for 25 minutes, then take a 5 minute break. Also, I have found that the sound of a gong […]

Radar Circuit Examples

There are so many cool things you can make with mini radar circuits. I thought I’d share some examples from my time in the radar business. Then end with a few examples of where you can get a hold of a radar circuit. Just to be clear: A radar is a sensor that uses electromagnetic […]