Bleow you have the .apk and .aia files for my Android app to control this robot. Each button will send a number from 1 to 12 and when we release the button we send a 0. The slider will send values from 13 to 255. We can map those values in the reeiver code. To install this app to your smartphone, copy it to the phone first. Enable unknown app to be able to install to your device (froms ettings). Then open the app folder and install the app.