https://github.com/danja/sound-machine
A testbed for trying out sound synthesis ideas built from off-the-shelf modules.
https://github.com/danja/sound-machine
arduino due esp32 experimental music sound synth testbed
Last synced: about 4 hours ago
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A testbed for trying out sound synthesis ideas built from off-the-shelf modules.
- Host: GitHub
- URL: https://github.com/danja/sound-machine
- Owner: danja
- License: mit
- Created: 2020-10-15T18:45:08.000Z (over 5 years ago)
- Default Branch: main
- Last Pushed: 2020-10-16T15:34:07.000Z (over 5 years ago)
- Last Synced: 2025-07-02T06:42:38.949Z (10 months ago)
- Topics: arduino, due, esp32, experimental, music, sound, synth, testbed
- Language: C++
- Homepage:
- Size: 6.51 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Sound Machine
A testbed for trying out sound synthesis ideas built from off-the-shelf modules.
## Hello World!
The current hardware. Hotglued to an A4 aluminium panel (with plastic standoffs).
Click image for YouTube video.
[](https://www.youtube.com/watch?v=Jbs1Wkpez20 "Sound Machine : Hello World!")
Right now my main focus is still on [Chatterbox](https://github.com/danja/chatterbox), but prompted by that I wanted to have a setup with more power and flexibility (Chatterbox has just an ESP32 with external DAC).
*Probably* the first bits I'll be playing with will be around delay lines and granular synthesis.
**PS. very soon after uploading the above, decided to add an Arduino Mega 2560.**
The software for this module I'm putting in a separate Github repo : [sound-machine-mega2560](https://github.com/danja/sound-machine-mega2560).
## Components
* Arduino Due : main audio processing
* Arduino Mega 2560 : user interface (keypad, display(s), rotary encoders)
* ESP32 : I/O (Wifi/Web, MIDI, Bluetooth)
* External stereo ADC (I2S)
* External stereo DAC (I2S)
* 4x4 Keypad (matrix)
* 20x4 LCD (I2C)
* Rotary Encoders
* External PSU
*I may well add a little TFT graphic display*
## Code
I'm using PlatformIO on VSCode (on Ubuntu). This seems **much** more convenient for larger projects than the Arduino IDE.
## Current Status
More frequent updates will appear in [notes.md](https://github.com/danja/sound-machine/blob/main/docs/notes.md)
**2020-10-16**
So far I've just hooked up the keypad and display to check they work (yes!).
Libs:
* https://github.com/Chris--A/Keypad
* https://gitlab.com/tandembyte/LCD_I2C
* see also : https://randomnerdtutorials.com/esp32-esp8266-i2c-lcd-arduino-ide/
## Design Notes
It may seem perverse using 3 fairly low-capability modules rather than, say, putting everything on a Raspberry Pi. The coding there would almost certainly be easier. But I reckon I can still keep the total cost down, I already have these modules (!) and also any finished machine doesn't necessarily have to use all the modules. It's also modular! The *blocks*, eg. Mega + UI components, could be used alongside a completely different system.
What's more this should be more fun!