Use APKPure App
Get DYOR old version APK for Android
This is a simple remote control front-end for DYOR Robot
DYOR is an educational robot based on Arduino.
This App has been developed in App Inventor 2 as part of a MOOC:
https://www.edx.org/es/course/disena-fabrica-y-programa-tu-propio-robot
You can get more info also at:
http://dyor.roboticafacil.es