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Watch the video first.
I wanted to make a Synth that resembles the great "Atari Punk Synth" from the 1980s. APS usually was based on 556 dual timer IC but in this version, I have used an ATmega328PU on a minimal config and some pots in order to replicate the so-called "Sound Synthesizer."
First, I designed the base body in Fusion360 and 3D printed it on my Ender 3.
Then I just put everything together like a jigsaw puzzle.
Thanks UTSOURCE.net to offer electronic components for this project!
you can check UTSOURCE.net, they deal in all kinds of electronic components, for example, Arduino board, Atmega328PU, and many more.
The main part of the heart of this project is the Mozzi Library here's the link for downloading it. http://sensorium.github.io/Mozzi/
After installing it, I uploaded the sketch based on this library to my minimal Arduino Uno PCB which is basically a breakout board for ATmega328PU
PCB was provided by JLCPCB
originally I made the circuit for a different thing but I end up using it instead of using a dot circuit board.
Results were good but the sound is not loud because I have connected the speaker directly with digital pin 9.
(Will be adding an OPAMP circuit in this in future.)
which is this-
check out its video-