This is utility that running on a Android device to read the temperature and humidity from a USB sensor. Please visit http://www.dogratian.com:8080/products for more detail about the sensor. How to compile? 1) Install the QT (5.2 or higher) 2) Open the project with the installed QT Creator. 3) Config the "Build Settings" as "Android for armeabi-v7a (Release)". 4) Build then Deploy it to your Android Phone. You may found more detail on Qt Project website (http://qt-project.org/doc/qt-5/android-support.html) Android requirement As the program used "UsbManager", a Android API 12 (3.1 Honeycomb) or higher is needed.