{"id":18147492,"url":"https://github.com/thestaticturtle/fourtypiny","last_synced_at":"2026-01-28T08:38:51.966Z","repository":{"id":71808939,"uuid":"364072655","full_name":"TheStaticTurtle/FourtyPiny","owner":"TheStaticTurtle","description":"This project is a simple i2c 40 pin GPIO expander module based on the PCA9505 or the PCA9506.","archived":false,"fork":false,"pushed_at":"2021-05-03T22:33:39.000Z","size":1350,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2025-10-10T13:16:18.837Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":null,"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/TheStaticTurtle.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}},"created_at":"2021-05-03T22:04:35.000Z","updated_at":"2021-05-03T22:33:41.000Z","dependencies_parsed_at":"2023-07-01T22:33:30.391Z","dependency_job_id":null,"html_url":"https://github.com/TheStaticTurtle/FourtyPiny","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/TheStaticTurtle/FourtyPiny","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/TheStaticTurtle%2FFourtyPiny","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/TheStaticTurtle%2FFourtyPiny/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/TheStaticTurtle%2FFourtyPiny/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/TheStaticTurtle%2FFourtyPiny/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/TheStaticTurtle","download_url":"https://codeload.github.com/TheStaticTurtle/FourtyPiny/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/TheStaticTurtle%2FFourtyPiny/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28842868,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-28T07:39:25.367Z","status":"ssl_error","status_checked_at":"2026-01-28T07:39:24.487Z","response_time":57,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.5:443 state=error: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"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":[],"created_at":"2024-11-01T22:06:43.652Z","updated_at":"2026-01-28T08:38:51.961Z","avatar_url":"https://github.com/TheStaticTurtle.png","language":null,"readme":"# FourtyPiny\nThis project is a simple i2c 40 pin GPIO expander module based on the PCA9505 or the PCA9506.\n\n\u003cimg src=\"https://user-images.githubusercontent.com/17061996/116939281-61ab6500-ac6c-11eb-8e89-9911f779173d.png\" height=\"200\"/\u003e\n\nThe module is designed for daisychaining to support up to 8 modules giving a total of 320 GPIO, if you want to go further you might be able to use an other i2c port or an i2c switch giving pretty much infinite IO\n\n## Hardware\nIt was designed under EasyEDA.\n\nThe module doesn't include pullups so be sure which chip you use, the PCA9505 has pullups the PCA9506 does not!\n\nAll images (pcb or schematic) are exported at 2x scale. All major format are here: easyeda, altium, image. Unfortunatly easyeda can't export to the kicad format yet but the files here should be enought\n\n## Software\nMultiple libraries exist for this chip:\nLanguage | Link\n---------|------\nArduino Library | https://github.com/tofuman0/PCA9505_06\nCircuitpython class |  https://github.com/TheStaticTurtle/CircuitPython_PCA9505\n","funding_links":[],"categories":[],"sub_categories":[],"project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fthestaticturtle%2Ffourtypiny","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fthestaticturtle%2Ffourtypiny","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fthestaticturtle%2Ffourtypiny/lists"}