Sawtooth organ
By Ben Everard. Posted
This article was originally published as part of HackSpace magazine, which has since been incorporated into Raspberry Pi Official Magazine.
Electronic music is a fascinating hobby. You learn an awful lot, you spend a fortune on components and, in the end, you get a small box that makes a wobbly noise that’s barely different from all the other circuits you’ve spent hours putting together.

Jokes aside, the learning curve for homemade analogue synths can be incredibly intimidating. So this circuit, which is priced at $9.99 on Tindie, is an inviting breath of fresh air. It’s a sawtooth organ, which uses just a handful of components to make notes when the user presses a stylus onto a keyboard. That’s it, and the simplicity means that anyone with a soldering iron will be able to put it together and bash out simple tunes
Program a robot arm, with Raspberry Pi and Python code
Ben is the Editor of HackSpace magazine. When not wrangling words, he enjoys cycling, gardening, and attempting to identify wild mushrooms.
Subscribe to Raspberry Pi Official Magazine
Save up to 37% off the cover price and get a FREE Raspberry Pi Pico 2 W with a subscription to Raspberry Pi Official Magazine.
More articles
Cyberdeck
We can’t imagine the looks you’d get using this machine on your daily commute, but apparently the maker of this wonderful machine does just that.
Read more →
Programming station
Spot the microcontroller: we can see an Arduino Uno, Arduino Nano, a pair of ESP32 boards, and a Raspberry Pi Pico, all waiting to be played with.
Read more →
Solder fume extractor
This device has adjustable fan speeds and light levels, courtesy of Raspberry Pi Pico.
Read more →