I was thinking about gifting my young niece and nephew their own tiny synths for Xmas. I’m looking for any quick to assemble - possibly Nano [because they are cheap on Tayda] based plans.
I found this recently this tutorial, and wondered if any of you know of any other similarly well documented [been around for a few years], quick to build all-in-one designs that I could assemble in a weekend.
I have made the Jan osterman mini pops drum machine and the solina string synth which are real easy builds (many links in this site)
The mini or nano pop or O2 build gives you a very cool drum machine and the Jean Michelle Jarre Oxygen vibe.
I’ve built the solina strings… that code, while it has some brilliant optimisations to get it to even work, it has issues with aliasing and glitches, particularly is the higher octaves.
Sadly the author was not able to contribute constructively in multiple online communities and has since removed his code and presence from the internet. Just think people should be aware of its history…
Too late right now, unless you have some flux caps charged up, but a few years ago I got the Arduino Minty synth and I have started to make a somewhat handier one more children safe potentiometers and pushbuttons.
It uses more or less just the ATmega 628 chip and a few extra passive components, but I’m sure it can be adopted (hardware) to use the Nano (which, I find more fun than the Uno, but that’s another story).
I looked up Mintysynth on GitHub and apparently there’s a third party PCB design available for those wanting to build one. New filenames and some trivial annotations are in Spanish, but all the rest is in the original English. It seems to use more conventional potentiometers and so on, so an easier build for the hobbyist now the kits are no longer available.
It also is built around a Nano, has two more LEDs, and is larger than an Altoids tin. In all of that it’s similar to something I’d started drawing up. They omit the header/jumper that lets you choose pin 3, 6, or 9 for the PWM output — presumably because they aren’t interested in running alternate software. I was thinking of adding a DIN MIDI out jack, and I put the four LEDs close together to facilitate using the Glitch-Storm software. Just an idea I was toying with, don’t know if I’ll pursue it.