# si7021 > A platform agnostic driver to interface with the Si7021 humidity and > temperature sensor. ## TODO - [X] measure and read humidity - [X] measure and read temperature - [ ] support HTU2xD(F) - [ ] support SHT2x - [X] measure humidity and read both humidity and temperature - [X] set humidity resolution - [X] set temperature resolution - [X] use checksum - [X] reset - [X] control heater - [X] read VDD status - [X] read serial number (contains device id) - [X] read firmware revision ## License Licensed under either of - Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0) - MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT) at your option. ### Contribution Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.