{"id":29506561,"url":"https://github.com/libdriver/pcf8575","last_synced_at":"2026-05-19T09:09:22.643Z","repository":{"id":304359399,"uuid":"1018360189","full_name":"libdriver/pcf8575","owner":"libdriver","description":"PCF8575 full-featured driver library for general-purpose MCU and Linux.","archived":false,"fork":false,"pushed_at":"2025-10-26T01:42:20.000Z","size":5166,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-10-26T03:28:06.615Z","etag":null,"topics":["c","full-featured-driver","io-expansion","linux","mcu","pcf8575"],"latest_commit_sha":null,"homepage":"https://www.libdriver.com","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/libdriver.png","metadata":{"files":{"readme":"README.md","changelog":"CHANGELOG.md","contributing":"CONTRIBUTING.md","funding":null,"license":"LICENSE","code_of_conduct":"CODE_OF_CONDUCT.md","threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":"SECURITY.md","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":"2025-07-12T05:18:05.000Z","updated_at":"2025-10-26T01:41:59.000Z","dependencies_parsed_at":"2025-10-26T03:20:03.446Z","dependency_job_id":"46a812f6-a435-4201-a542-f68f095c7488","html_url":"https://github.com/libdriver/pcf8575","commit_stats":null,"previous_names":["libdriver/pcf8575"],"tags_count":3,"template":false,"template_full_name":null,"purl":"pkg:github/libdriver/pcf8575","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fpcf8575","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fpcf8575/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fpcf8575/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fpcf8575/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/libdriver","download_url":"https://codeload.github.com/libdriver/pcf8575/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fpcf8575/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":33209586,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-05-19T07:54:09.561Z","status":"ssl_error","status_checked_at":"2026-05-19T07:54:08.508Z","response_time":58,"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":["c","full-featured-driver","io-expansion","linux","mcu","pcf8575"],"created_at":"2025-07-16T02:02:17.705Z","updated_at":"2026-05-19T09:09:22.638Z","avatar_url":"https://github.com/libdriver.png","language":"C","funding_links":[],"categories":[],"sub_categories":[],"readme":"[English](/README.md) | [ 简体中文](/README_zh-Hans.md) | [繁體中文](/README_zh-Hant.md) | [日本語](/README_ja.md) | [Deutsch](/README_de.md) | [한국어](/README_ko.md)\n\n\u003cdiv align=center\u003e\n\u003cimg src=\"/doc/image/logo.svg\" width=\"400\" height=\"150\"/\u003e\n\u003c/div\u003e\n\n## LibDriver PCF8575\n\n[![MISRA](https://img.shields.io/badge/misra-compliant-brightgreen.svg)](/misra/README.md) [![API](https://img.shields.io/badge/api-reference-blue.svg)](https://www.libdriver.com/docs/pcf8575/index.html) [![License](https://img.shields.io/badge/license-MIT-brightgreen.svg)](/LICENSE)\n\nThis 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 2.5V to 5.5V VCC operation.The PCF8575 device provides general-purpose remote I/O expansion for most microcontroller families by way of the I2C interface [serial clock (SCL), serial data (SDA)].The device features a 16-bit quasi-bidirectional input/output (I/O) port (P07–P00, P17–P10), including latched outputs with high-current drive capability for directly driving LEDs. Each quasi-bidirectional I/O can be used as an input or output without the use of a data-direction control signal. At power on, the I/Os are high. In this mode, only a current source to VCC is active.\n\nLibDriver PCF8575 is a full-featured driver for PCF8575, launched by LibDriver.It provides I/O writing, I/O reading and additional features. LibDriver is MISRA compliant.\n\n### Table of Contents\n\n  - [Instruction](#Instruction)\n  - [Install](#Install)\n  - [Usage](#Usage)\n    - [example basic](#example-basic)\n  - [Document](#Document)\n  - [Contributing](#Contributing)\n  - [License](#License)\n  - [Contact Us](#Contact-Us)\n\n### Instruction\n\n/src includes LibDriver PCF8575 source files.\n\n/interface includes LibDriver PCF8575 IIC platform independent template.\n\n/test includes LibDriver PCF8575 driver test code and this code can test the chip necessary function simply.\n\n/example includes LibDriver PCF8575 sample code.\n\n/doc includes LibDriver PCF8575 offline document.\n\n/datasheet includes PCF8575 datasheet.\n\n/project includes the common Linux and MCU development board sample code. All projects use the shell script to debug the driver and the detail instruction can be found in each project's README.md.\n\n/misra includes the LibDriver MISRA code scanning results.\n\n### Install\n\nReference /interface IIC platform independent template and finish your platform IIC driver.\n\nAdd the /src directory, the interface driver for your platform, and your own drivers to your project, if you want to use the default example drivers, add the /example directory to your project.\n\n### Usage\n\nYou can refer to the examples in the /example directory to complete your own driver. If you want to use the default programming examples, here's how to use them.\n\n#### example basic\n\n```C\n#include \"driver_pcf8575_basic.h\"\n\nuint8_t res;\npcf8575_pin_level_t level;\n\n/* basic init */\nres = pcf8575_basic_init(PCF8575_ADDRESS_A000);\nif (res != 0)\n{\n    return 1;\n}\n\n...\n\n/* read pin */\nres = pcf8575_basic_read(PCF8575_PIN_00, (pcf8575_pin_level_t *)\u0026level);\nif (res != 0)\n{\n    (void)pcf8575_basic_deinit();\n\n    return 1;\n}\n\n/* write pin */\nres = pcf8575_basic_write(PCF8575_PIN_00, PCF8575_PIN_LEVEL_HIGH);\nif (res != 0)\n{\n    (void)pcf8575_basic_deinit();\n\n    return 1;\n}\n\n...\n\n(void)pcf8575_basic_deinit();\n\nreturn 0;\n```\n\n### Document\n\nOnline documents: [https://www.libdriver.com/docs/pcf8575/index.html](https://www.libdriver.com/docs/pcf8575/index.html).\n\nOffline documents: /doc/html/index.html.\n\n### Contributing\n\nPlease refer to CONTRIBUTING.md.\n\n### License\n\nCopyright (c) 2015 - present LibDriver All rights reserved\n\n\n\nThe MIT License (MIT) \n\n\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\n\nof this software and associated documentation files (the \"Software\"), to deal\n\nin the Software without restriction, including without limitation the rights\n\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n\ncopies of the Software, and to permit persons to whom the Software is\n\nfurnished to do so, subject to the following conditions: \n\n\n\nThe above copyright notice and this permission notice shall be included in all\n\ncopies or substantial portions of the Software. \n\n\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n\nSOFTWARE. \n\n### Contact Us\n\nPlease send an e-mail to lishifenging@outlook.com.","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flibdriver%2Fpcf8575","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flibdriver%2Fpcf8575","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flibdriver%2Fpcf8575/lists"}