{"id":28904010,"url":"https://github.com/danja/sound-machine","last_synced_at":"2026-04-17T08:02:00.605Z","repository":{"id":139925660,"uuid":"304418876","full_name":"danja/sound-machine","owner":"danja","description":"A testbed for trying out sound synthesis ideas built from off-the-shelf modules.","archived":false,"fork":false,"pushed_at":"2020-10-16T15:34:07.000Z","size":6824,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-07-02T06:42:38.949Z","etag":null,"topics":["arduino","due","esp32","experimental","music","sound","synth","testbed"],"latest_commit_sha":null,"homepage":"","language":"C++","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/danja.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null,"zenodo":null}},"created_at":"2020-10-15T18:45:08.000Z","updated_at":"2020-10-16T15:34:09.000Z","dependencies_parsed_at":null,"dependency_job_id":"314b949c-80f1-4e35-b518-a9ae05614662","html_url":"https://github.com/danja/sound-machine","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/danja/sound-machine","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/danja%2Fsound-machine","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/danja%2Fsound-machine/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/danja%2Fsound-machine/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/danja%2Fsound-machine/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/danja","download_url":"https://codeload.github.com/danja/sound-machine/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/danja%2Fsound-machine/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":31920518,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-16T18:22:33.417Z","status":"online","status_checked_at":"2026-04-17T02:00:06.879Z","response_time":62,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["arduino","due","esp32","experimental","music","sound","synth","testbed"],"created_at":"2025-06-21T12:07:19.158Z","updated_at":"2026-04-17T08:02:00.578Z","avatar_url":"https://github.com/danja.png","language":"C++","readme":"# Sound Machine\n\nA testbed for trying out sound synthesis ideas built from off-the-shelf modules.\n\n## Hello World!\n\nThe current hardware. Hotglued to an A4 aluminium panel (with plastic standoffs).\n\nClick image for YouTube video.\n\n[![Sound Machine Hardware](https://github.com/danja/sound-machine/blob/main/docs/images/hardware_2020-10-16.jpeg?raw=true)](https://www.youtube.com/watch?v=Jbs1Wkpez20 \"Sound Machine : Hello World!\")\n\nRight 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).\n\n*Probably* the first bits I'll be playing with will be around delay lines and granular synthesis.\n\n**PS. very soon after uploading the above, decided to add an Arduino Mega 2560.**\n\nThe software for this module I'm putting in a separate Github repo : [sound-machine-mega2560](https://github.com/danja/sound-machine-mega2560).\n\n![Sound Machine Hardware](https://github.com/danja/sound-machine/blob/main/docs/images/hardware_2020-10-16-later.jpeg?raw=true)\n\n## Components\n\n* Arduino Due : main audio processing\n* Arduino Mega 2560 : user interface (keypad, display(s), rotary encoders)\n* ESP32 : I/O (Wifi/Web, MIDI, Bluetooth)\n* External stereo ADC (I2S)\n* External stereo DAC (I2S)\n* 4x4 Keypad (matrix)\n* 20x4 LCD (I2C)\n* Rotary Encoders\n* External PSU\n\n*I may well add a little TFT graphic display*\n\n## Code\n\nI'm using PlatformIO on VSCode (on Ubuntu). This seems **much** more convenient for larger projects than the Arduino IDE.\n\n## Current Status\n\nMore frequent updates will appear in [notes.md](https://github.com/danja/sound-machine/blob/main/docs/notes.md)\n\n**2020-10-16**\n\nSo far I've just hooked up the keypad and display to check they work (yes!). \nLibs:\n* https://github.com/Chris--A/Keypad\n* https://gitlab.com/tandembyte/LCD_I2C \n  * see also : https://randomnerdtutorials.com/esp32-esp8266-i2c-lcd-arduino-ide/\n\n## Design Notes\n\nIt 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. \nWhat's more this should be more fun! \n\n\n\n\n\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdanja%2Fsound-machine","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdanja%2Fsound-machine","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdanja%2Fsound-machine/lists"}