{"id":16146126,"url":"https://github.com/libdriver/sgp41","last_synced_at":"2025-03-18T18:30:52.876Z","repository":{"id":189436979,"uuid":"680574508","full_name":"libdriver/sgp41","owner":"libdriver","description":"SGP41 full function driver library for general MCU and Linux.","archived":false,"fork":false,"pushed_at":"2025-03-15T12:23:24.000Z","size":3398,"stargazers_count":13,"open_issues_count":0,"forks_count":7,"subscribers_count":4,"default_branch":"main","last_synced_at":"2025-03-15T13:25:49.030Z","etag":null,"topics":["full-function-driver","iic","linux","mcu","nox","sgp41","voc"],"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}},"created_at":"2023-08-19T17:28:20.000Z","updated_at":"2025-03-15T12:23:04.000Z","dependencies_parsed_at":"2023-08-20T04:23:48.463Z","dependency_job_id":"9c405646-c0c9-4a18-b1e0-23f238d86e96","html_url":"https://github.com/libdriver/sgp41","commit_stats":null,"previous_names":["hepingood/sgp41","libdriver/sgp41"],"tags_count":7,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fsgp41","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fsgp41/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fsgp41/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/libdriver%2Fsgp41/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/libdriver","download_url":"https://codeload.github.com/libdriver/sgp41/tar.gz/refs/heads/main","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":244281027,"owners_count":20427782,"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":["full-function-driver","iic","linux","mcu","nox","sgp41","voc"],"created_at":"2024-10-10T00:18:59.506Z","updated_at":"2025-03-18T18:30:52.870Z","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 SGP41\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/sgp41/index.html) [![License](https://img.shields.io/badge/license-MIT-brightgreen.svg)](/LICENSE)\n\nThe SGP41 is a digital gas sensor designed for easy integration into air purifier s or demand controlled ventilation systems. Sensirion’s CMOSens ® technology offers a complete , easy to use sensor system on a single chip featuring a digital I 2 C interface and temperature controlled micro hotplates, providing one VOC and one NO x based indoor air quality signal . Both sensing element and Gas Index Algorithm feature an unmatched robustness against contaminating gases present in real world applications enabling a unique long term stability as well as low drift. The very small 2.44 x 2.44 x 0.85 mm 3 DFN package enables applications in limited spaces. Sensirion’s state of the art production process guarantees high reproducibility and reliability. Tape and reel packaging together with suitability for standard SMD assembly processes make the SGP41 predestined for high volume applications.\n\nLibDriver SGP41 is a full function driver of SGP41 launched by LibDriver.It provides VOC, NOX reading, temperature and humidity correction and other functions. 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    - [LibDriver](#LibDriver)\n    - [Gas Index Algorithm](#Gas-Index-Algorithm)\n  - [Contact Us](#Contact-Us)\n\n### Instruction\n\n/src includes LibDriver SGP41 source files.\n\n/interface includes LibDriver SGP41 IIC platform independent template.\n\n/test includes LibDriver SGP41 driver test code and this code can test the chip necessary function simply.\n\n/example includes LibDriver SGP41 sample code.\n\n/doc includes LibDriver SGP41 offline document.\n\n/datasheet includes SGP41 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_sgp41_basic.h\"\n\nuint8_t res;\nuint32_t i;\nuint16_t id[3];\nint32_t voc_gas_index;\nint32_t nox_gas_index;\nuint32_t times = 3;\nfloat rh = 50.0f;\nfloat temp = 25.0f;\n\n/* init */\nres = sgp41_basic_init();\nif (res != 0)\n{\n    return 1;\n}\n\n...\n    \n/* loop */\nfor (i = 0; i \u003c times; i++)\n{\n    /* delay 1000ms */\n    sgp41_interface_delay_ms(1000);\n\n    /* read data */\n    res = sgp41_basic_read(temp, rh, \u0026voc_gas_index, \u0026nox_gas_index);\n    if (res != 0)\n    {\n        (void)sgp41_basic_deinit();\n\n        return 1;\n    }\n\n    /* output */\n    sgp41_interface_debug_print(\"sgp41: %d/%d.\\n\", (uint32_t)(i + 1), (uint32_t)times);\n    sgp41_interface_debug_print(\"sgp41: voc gas index is %d.\\n\", voc_gas_index);\n    sgp41_interface_debug_print(\"sgp41: nox gas index is %d.\\n\", nox_gas_index);\n    \n    ...\n}\n\n...\n\n/* loop */\nfor (i = 0; i \u003c times; i++)\n{\n    /* delay 1000ms */\n    sgp41_interface_delay_ms(1000);\n\n    /* read data */\n    res = sgp41_basic_read_without_compensation(\u0026voc_gas_index, \u0026nox_gas_index);\n    if (res != 0)\n    {\n        (void)sgp41_basic_deinit();\n\n        return 1;\n    }\n\n    /* output */\n    sgp41_interface_debug_print(\"sgp41: %d/%d.\\n\", (uint32_t)(i + 1), (uint32_t)times);\n    sgp41_interface_debug_print(\"sgp41: voc gas index is %d.\\n\", voc_gas_index);\n    sgp41_interface_debug_print(\"sgp41: nox gas index is %d.\\n\", nox_gas_index);\n    \n    ...\n}\n\n...\n    \n/* get serial id */\nres = sgp41_basic_get_serial_id(id);\nif (res != 0)\n{\n    (void)sgp41_basic_deinit();\n\n    return 1;\n}\n\n/* output */\nsgp41_interface_debug_print(\"sgp41: serial id 0x%04X 0x%04X 0x%04X.\\n\", (uint16_t)(id[0]), (uint16_t)(id[1]), (uint16_t)(id[2]));\n\n...\n    \n/* deinit */\n(void)sgp41_basic_deinit();\n\nreturn 0;\n```\n\n### Document\n\nOnline documents: [https://www.libdriver.com/docs/sgp41/index.html](https://www.libdriver.com/docs/sgp41/index.html).\n\nOffline documents: /doc/html/index.html.\n\n### Contributing\n\nPlease refer to CONTRIBUTING.md.\n\n### License\n\n#### LibDriver\n\nAll original driver source code in this repository is Copyright (c) 2015 - present LibDriver. This source code is licensed under the MIT License (MIT)  as below.\n\n\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#### Gas Index Algorithm\n\nThe gas index algorithm source code(driver_sgp40_algorithm.c and driver_sgp40_algorithm.h) in this repository is Copyright (c) 2022, Sensirion AG . This source code is licensed under the BSD 3 - Clause License as below.\n\n\n\nCopyright (c) 2022, Sensirion AG All rights reserved.\n\n\n\nBSD 3 - Clause License\n\n\n\nRedistribution and use in source and binary forms, with or without\n\nmodification, are permitted provided that the following conditions are met:\n\n1. Redistributions of source code must retain the above copyright notice, this\n\n   list of conditions and the following disclaimer.\n\n2. Redistributions in binary form must reproduce the above copyright notice,\n\n   this list of conditions and the following disclaimer in the documentation\n\n   and/or other materials provided with the distribution.\n\n3. Neither the name of the copyright holder nor the names of its\n\n   contributors may be used to endorse or promote products derived from\n\n   this software without specific prior written permission.\n\n   \n\nTHIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n\nAND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n\nIMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n\nDISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE\n\nFOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL\n\nDAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR\n\nSERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER\n\nCAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,\n\nOR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n\nOF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\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%2Fsgp41","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Flibdriver%2Fsgp41","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Flibdriver%2Fsgp41/lists"}