{"id":25015564,"url":"https://github.com/hkzlab/atnox","last_synced_at":"2026-01-11T02:57:01.684Z","repository":{"id":41240815,"uuid":"302721062","full_name":"hkzlab/ATnoX","owner":"hkzlab","description":"ATX to AT/XT/Amiga power supply adapter","archived":false,"fork":false,"pushed_at":"2023-12-09T08:42:31.000Z","size":16246,"stargazers_count":18,"open_issues_count":1,"forks_count":1,"subscribers_count":7,"default_branch":"master","last_synced_at":"2025-02-05T08:36:48.417Z","etag":null,"topics":["adapter","amiga","at","atx","powersupply","retrocomputing","xt"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":false,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"cc-by-sa-4.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/hkzlab.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE.txt","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}},"created_at":"2020-10-09T18:19:16.000Z","updated_at":"2024-11-24T16:19:08.000Z","dependencies_parsed_at":"2023-12-09T09:39:43.112Z","dependency_job_id":null,"html_url":"https://github.com/hkzlab/ATnoX","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hkzlab%2FATnoX","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hkzlab%2FATnoX/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hkzlab%2FATnoX/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/hkzlab%2FATnoX/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/hkzlab","download_url":"https://codeload.github.com/hkzlab/ATnoX/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":246285653,"owners_count":20752947,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","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":["adapter","amiga","at","atx","powersupply","retrocomputing","xt"],"created_at":"2025-02-05T08:30:30.592Z","updated_at":"2026-01-11T02:57:01.668Z","avatar_url":"https://github.com/hkzlab.png","language":null,"funding_links":[],"categories":[],"sub_categories":[],"readme":"# ATnoX\n\n## Introduction\n\nThe ATnoX was born out of the necessity for me to have a small adapter adapter I could use to fit AT/XT motherboards into modern cases, powering them with ATX power supplies and turning them on with a momentary switch (the standard power on button present in computer cases built in the last 20+ years).\n\nThe [ATX2AT](https://x86.fr/atx2at-smart-converter/) is a wonderful device (I own several of them), but I prefer to use it to test my boards and then fall back onto a cheaper alternative I can close inside a case without it feeling like a waste.\n\nIn fact, the output connector uses the same pinout as the ATX2AT, but as I still had a free pin available, I decided to include a **TICK generator**: a 50/60hz square wave signal required by some big-box Amigas to turn on.\n\n![Rev. 3.2 PCB](pics/rev3.2_pcb.png)\n\n## Pinout\n\n14 pin connector, front view.\n\n```text\n                ____\n.----.----.----|----|----.----.----.\n| 14 | 13 | 12 | 11 | 10 |  9 |  8 |\n|----+----+----+----+----+----+----|\n|  7 |  6 |  5 |  4 |  3 |  2 |  1 |\n'----'----'----'----'----'----'----'\n```\n\n1. +12V\n2. +5V\n3. +5V\n4. GND\n5. GND\n6. TICK (50/60Hz depending on X1)\n7. -5V\n8. +12V\n9. +5V\n10. +5V\n11. GND\n12. GND\n13. Power OK signal\n14. -12V\n\n## Component list\n\n**TODO**\n\n## Features\n\n- -5v onboard generation via a 7905 regulator\n- Momentary button power-on support\n- Header for power led in case the motherboard lacks it\n- Power on button included on board for bench testing\n- Optional amiga Tick generator\n- 4 Layer board (middle layers are +5v and GND)\n\n## Credits\n\n- logic-4000 libraries taken from [alexisvl/kicad-schlib](https://github.com/alexisvl/kicad-schlib)\n- ATX power-on circuit taken from [skiselev/isa8_backplane](https://github.com/skiselev/isa8_backplane)\n- Amiga Tick generator taken from [Aminet](http://aminet.net/package/docs/hard/Mix_and_Tick)\n- Thanks to [@A-Small-Mice](https://github.com/A-Small-Mice) for the printable case\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhkzlab%2Fatnox","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fhkzlab%2Fatnox","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fhkzlab%2Fatnox/lists"}