Description 3.3V & 5V inputs as well as 5V Vbus pads need to be bridged USB Host Shield for Arduino UNO MEGA 2560 Support the Google Android ADK Compatible with Arduino Uno 328, Arduino Mega 1280 ...

An Android phone on which you can develop code. This means you have enabled USB debugging and have your IDE setup to compile code. An Arduino board: like Arduino UNO. A USB Host Shield.

Revision 2.0 of USB Host Library for Arduino. Contribute to felis/USB_Host_Shield_2.0 development by creating an account on GitHub.

The USB Host chip allows for seamless communication between the Arduino board and Android devices, enabling a wide range of applications from home automation to robotics.

A photocell and TMP36 temperature sensor are connected to the Arduino, then with a bit of code and USB host magic, the Android app shows the temp and amount ambient light present in the room.