This is an updated Version of the HIOT Project: by @stefankmitph find it here https://github.com/stefankmitph/hiot
Folowing updates for project to work with Android 3.4.2 minSdkVersion 16 compileSdkVersion 28 buildToolsVersion "28.0.3"
gradle version 3.4.2
gradle-wrapper properties : 5.1.1