{"id":37211660,"url":"https://github.com/angiglesias/pca9957","last_synced_at":"2026-01-15T00:06:07.063Z","repository":{"id":57658153,"uuid":"466862899","full_name":"angiglesias/pca9957","owner":"angiglesias","description":"periph.io inspired driver for led stripes based on PCA9957","archived":false,"fork":false,"pushed_at":"2022-03-07T00:28:43.000Z","size":13,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"main","last_synced_at":"2024-06-20T18:32:44.558Z","etag":null,"topics":["go","golang","pca9957","periphio"],"latest_commit_sha":null,"homepage":"","language":"Go","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/angiglesias.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}},"created_at":"2022-03-06T21:38:12.000Z","updated_at":"2022-03-07T00:25:48.000Z","dependencies_parsed_at":"2022-08-25T17:01:33.590Z","dependency_job_id":null,"html_url":"https://github.com/angiglesias/pca9957","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"purl":"pkg:github/angiglesias/pca9957","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/angiglesias%2Fpca9957","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/angiglesias%2Fpca9957/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/angiglesias%2Fpca9957/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/angiglesias%2Fpca9957/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/angiglesias","download_url":"https://codeload.github.com/angiglesias/pca9957/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/angiglesias%2Fpca9957/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28439612,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-01-14T22:37:52.437Z","status":"ssl_error","status_checked_at":"2026-01-14T22:37:31.496Z","response_time":107,"last_error":"SSL_read: 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":["go","golang","pca9957","periphio"],"created_at":"2026-01-15T00:06:06.279Z","updated_at":"2026-01-15T00:06:07.036Z","avatar_url":"https://github.com/angiglesias.png","language":"Go","funding_links":[],"categories":[],"sub_categories":[],"readme":"# Periph.io compatible SPI driver for PCA9957 led controller\n\nNXP PCA9957 device driver to work with [periph.io](https://periph.io/)\n\n[![PkgGoDev](https://pkg.go.dev/badge/github.com/angiglesias/pca9957)](https://pkg.go.dev/github.com/angiglesias/pca9957)\n\n## Driver summary\n\nThe PCA9957 is a 24-channel SPI bus constant current programmable LED driver.\n\nThis device supports daisy chaining of multiple drivers to build composed led stripes. Driver will expose\nthe daisy chained stripes as a row of pixels as done in existing [nrzled](https://pkg.go.dev/periph.io/x/devices/v3/nrzled) driver.\n\n## Limitations\n\n* Driver is currently only compatible with RGB strips (max 8 pixels, asigning 3 channels per pixel)\n* Driver asumes pixels in BGR configuration (in each pixel, lower channel for blue, higher channel for red and mid for green)\n    * ie, for the first pixel of the stripe, channel zero would be blue, channel one would green and channel two would be red\n* Driver models led stripe as one line of pixels (containing a maximun of eight color pixels)\n\n## Datasheet\n\n* [PCA9957](https://www.nxp.com/docs/en/data-sheet/PCA9957DS.pdf)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fangiglesias%2Fpca9957","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fangiglesias%2Fpca9957","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fangiglesias%2Fpca9957/lists"}