{"id":27148865,"url":"https://github.com/fortinsylvain/halloweenizer","last_synced_at":"2026-08-12T01:02:18.424Z","repository":{"id":284447630,"uuid":"954976845","full_name":"fortinsylvain/Halloweenizer","owner":"fortinsylvain","description":"RaspberryPi Pico Midi and DMX512 controller","archived":false,"fork":false,"pushed_at":"2025-10-21T03:14:26.000Z","size":1691,"stargazers_count":2,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-10-21T05:29:40.467Z","etag":null,"topics":["cinematic-effects","dmx512","halloween","midi","midi-controller","raspberry-pi-pico","raspberry-pi-pico-2","roland-s330","rp2040","sampler","sound-effects","synthesizer","visual-effects"],"latest_commit_sha":null,"homepage":"","language":"C","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/fortinsylvain.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":null,"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,"notice":null,"maintainers":null,"copyright":null,"agents":null,"dco":null,"cla":null}},"created_at":"2025-03-25T23:04:08.000Z","updated_at":"2025-10-21T03:14:30.000Z","dependencies_parsed_at":null,"dependency_job_id":"761eced1-8365-4cc2-9d20-ca2fc20fe65f","html_url":"https://github.com/fortinsylvain/Halloweenizer","commit_stats":null,"previous_names":["fortinsylvain/halloweenizer"],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/fortinsylvain/Halloweenizer","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fortinsylvain%2FHalloweenizer","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fortinsylvain%2FHalloweenizer/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fortinsylvain%2FHalloweenizer/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fortinsylvain%2FHalloweenizer/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/fortinsylvain","download_url":"https://codeload.github.com/fortinsylvain/Halloweenizer/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/fortinsylvain%2FHalloweenizer/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":36543910,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-08-06T04:43:03.162Z","status":"online","status_checked_at":"2026-08-11T02:00:06.871Z","response_time":99,"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":["cinematic-effects","dmx512","halloween","midi","midi-controller","raspberry-pi-pico","raspberry-pi-pico-2","roland-s330","rp2040","sampler","sound-effects","synthesizer","visual-effects"],"created_at":"2025-04-08T12:34:36.729Z","updated_at":"2026-08-12T01:02:18.371Z","avatar_url":"https://github.com/fortinsylvain.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Halloweenizer\n## RaspberryPi Pico MIDI and DMX512 Controller\n\nThis project uses a Raspberry Pi Pico to control both MIDI and DMX512, creating a synchronized audiovisual experience for Halloween.\n\n## 🎵 MIDI Integration  \n\nThe Pico sends MIDI output to a Roland S-330 digital sampler, which plays eerie sounds, special effects, and haunting organ chords. These sounds, amplified through speakers, set the perfect spooky atmosphere.\n![](Roland_S-330.jpg)\n\n## 💡 DMX512 Lighting Control \nThe DMX512 output drives two RGB projectors, programmed to create dramatic lighting effects, including simulated thunderstorms and eerie color shifts to enhance the ambiance.\n![](projector_DMX512_front.jpg)\n![](projector_DMX512_back.jpg)\n\n## 🛠️ Build \u0026 Implementation \n### Schematic (Hand-drawn draft)\nA wall-mounted 5 V power supply provides power to the VSYS input of the Raspberry Pi pico and the other components. A MC3487 Quadruple Differential Line Driver chip converts the 3.3V GPIO output into a differential pair, which is then connected to a female XLR connector. Another GPIO pin controls two 2N2222 NPN transistors connected in cascade to drive the MIDI connector.\n![](schematic.jpg)\n\nThe project is currently assembled on a breadboard:\n![](BreadBoard.jpg)\n\nA permanent build is not planned at the moment, but the setup works well for its purpose.\n\n## 🎃 Spooky Fun\nThis project was a blast to build, generating both frighteningly fun effects for kids and a satisfying challenge for the programmer!\n\n## ⚠️ Warning\nThis project significantly boosts visibility, so be prepared to hand out plenty of candy to visitors!\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffortinsylvain%2Fhalloweenizer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ffortinsylvain%2Fhalloweenizer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ffortinsylvain%2Fhalloweenizer/lists"}