This app uses spark cores to simulate sensors that would be placed on public parking spots. TruPark reads these sensors to determine if parking spots are open or taken. This app is developed in web as well as native Android and iOS.
Android repository: https://github.com/Camirwin/TruPark
iOS repository: https://github.com/Snwspeckle/trupark-ios
Web repository: https://github.com/nainapjj/trupark-web