{"id":34933886,"url":"https://github.com/libdriver/stcc4","last_synced_at":"2026-04-22T00:32:27.490Z","repository":{"id":320822490,"uuid":"1074587904","full_name":"libdriver/stcc4","owner":"libdriver","description":"STCC4 full-featured driver library for general-purpose MCU and Linux.","archived":false,"fork":false,"pushed_at":"2025-10-26T04:09:58.000Z","size":3434,"stargazers_count":1,"open_issues_count":0,"forks_count":0,"subscribers_count":0,"default_branch":"main","last_synced_at":"2025-10-26T06:09:54.106Z","etag":null,"topics":["c","co2","full-featured-driver","humidity","iic","linux","mcu","stcc4","temperature"],"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":"2025-10-12T04:44:09.000Z","updated_at":"2025-10-26T04:09:28.000Z","dependencies_parsed_at":"2025-10-26T06:09:56.741Z","dependency_job_id":"9c5b54b4-d67c-4ebe-9428-aa71d4d4b648","html_url":"https://github.com/libdriver/stcc4","commit_stats":null,"previous_names":["libdriver/stcc4"],"tags_count":2,"template":false,"template_full_name":null,"purl":"pkg:github/libdriver/stcc4","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fstcc4","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fstcc4/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fstcc4/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fstcc4/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/libdriver","download_url":"https://codeload.github.com/libdriver/stcc4/tar.gz/refs/heads/main","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fstcc4/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":32115837,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-04-22T00:31:26.853Z","status":"ssl_error","status_checked_at":"2026-04-22T00:30:22.894Z","response_time":128,"last_error":"SSL_connect returned=1 errno=0 peeraddr=140.82.121.6:443 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":["c","co2","full-featured-driver","humidity","iic","linux","mcu","stcc4","temperature"],"created_at":"2025-12-26T17:58:32.311Z","updated_at":"2026-04-22T00:32:27.483Z","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 STCC4\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/stcc4/index.html) [![License](https://img.shields.io/badge/license-MIT-brightgreen.svg)](/LICENSE)\n\nThe STCC4 is Sensirion’s next generation miniature CO2 sensor for indoor air quality applications. Based on the thermal conductivity sensing principle and Sensirion’s CMOSens® technology, the STCC4 enables monitoring of CO2 gas concentration in ambient indoor air conditions at an unmatched cost-effectiveness and form factor. SMD assembly as well as tape \u0026 reel packaging allows cost- and space-effective integration of the STCC4 for high-volume applications. The STCC4 is 100% factory-calibrated and enables automatic on-board compensation of the CO2 output for humidity and temperature through an external SHT4x sensor.\n\nLibDriver STCC4 is a full-featured driver for STCC4, launched by LibDriver.It provides CO2 reading, temperature reading, humidity 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    - [example shot](#example-shot)\n  - [Document](#Document)\n  - [Contributing](#Contributing)\n  - [License](#License)\n  - [Contact Us](#Contact-Us)\n\n### Instruction\n\n/src includes LibDriver STCC4 source files.\n\n/interface includes LibDriver STCC4 IIC platform independent template.\n\n/test includes LibDriver STCC4 driver test code and this code can test the chip necessary function simply.\n\n/example includes LibDriver STCC4 sample code.\n\n/doc includes LibDriver STCC4 offline document.\n\n/datasheet includes STCC4 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_stcc4_basic.h\"\n\nuint8_t res;\nuint32_t i;\nuint32_t times = 3;\nint16_t co2_ppm;\nfloat temperature;\nfloat humidity;\n\n/* basic init */\nres = stcc4_basic_init(STCC4_ADDRESS_0);\nif (res != 0)\n{\n    return 1;\n}\n\n...\n    \n/* loop */\nfor (i = 0; i \u003c times; i++)\n{\n    /* delay 5000ms */\n    stcc4_interface_delay_ms(5000);\n\n    /* read data */\n    res = stcc4_basic_read((int16_t *)\u0026co2_ppm, (float *)\u0026temperature, (float *)\u0026humidity);\n    if (res != 0)\n    {\n        (void)stcc4_basic_deinit();\n\n        return 1;\n    }\n\n    /* output */\n    stcc4_interface_debug_print(\"stcc4: %d/%d.\\n\", (uint32_t)(i + 1), (uint32_t)times);\n    stcc4_interface_debug_print(\"stcc4: co2 is %02dppm.\\n\", co2_ppm);\n    stcc4_interface_debug_print(\"stcc4: temperature is %0.2fC.\\n\", temperature);\n    stcc4_interface_debug_print(\"stcc4: humidity is %0.2f%%.\\n\", humidity);\n    \n    ...\n}\n\n...\n    \n/* basic deinit */\n(void)stcc4_basic_deinit();\n\nreturn 0;\n```\n#### example shot\n\n```C\n#include \"driver_stcc4_shot.h\"\n\nuint8_t res;\nuint32_t i;\nuint32_t times = 3;\nint16_t co2_ppm;\nfloat temperature;\nfloat humidity;\n\n/* shot init */\nres = stcc4_shot_init(STCC4_ADDRESS_0);\nif (res != 0)\n{\n    return 1;\n}\n\n...\n    \n/* loop */\nfor (i = 0; i \u003c times; i++)\n{\n    /* delay 5000ms */\n    stcc4_interface_delay_ms(5000);\n\n    /* read data */\n    res = stcc4_shot_read((int16_t *)\u0026co2_ppm, (float *)\u0026temperature, (float *)\u0026humidity);\n    if (res != 0)\n    {\n        (void)stcc4_shot_deinit();\n\n        return 1;\n    }\n\n    /* output */\n    stcc4_interface_debug_print(\"stcc4: %d/%d.\\n\", (uint32_t)(i + 1), (uint32_t)times);\n    stcc4_interface_debug_print(\"stcc4: co2 is %02dppm.\\n\", co2_ppm);\n    stcc4_interface_debug_print(\"stcc4: temperature is %0.2fC.\\n\", temperature);\n    stcc4_interface_debug_print(\"stcc4: humidity is %0.2f%%.\\n\", humidity);\n    \n    ...\n}\n\n...\n    \n/* shot deinit */\n(void)stcc4_shot_deinit();\n\nreturn 0;\n```\n### Document\n\nOnline documents: [https://www.libdriver.com/docs/stcc4/index.html](https://www.libdriver.com/docs/stcc4/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%2Fstcc4","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flibdriver%2Fstcc4","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flibdriver%2Fstcc4/lists"}