# Change Log SRF05 All notable changes to this project will be documented in this file. The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/). ## [0.1.4] - 2023-03-15 - add **uint32_t lastTime()** - changed return type **bool setCorrectionFactor()** - add experimental **get- setTriggerLength()** - redo **determineSpeedOfSound()** - update readme.md - update GitHub actions - update license 2023 - minor edits ## [0.1.3] - 2022-11-25 - Add RP2040 support to build-CI. - Add CHANGELOG.md - update readme.md - update **determineSpeedOfSound()** with default parameter = 1 meter - add mode constants - update unit test - move code from .h to .cpp ## [0.1.2] - 2021-12-28 - update library.json - update license - minor edits ## [0.1.1] - 2021-11-18 - update build-CI, - update readme.md - minor edits ## [0.1.0] - 2021-05-17 - initial version