... sensors, touch sensors, digital joystick SF-DFR0166 Accessory Demo Shield compatible with google ADK, with relays, temperature sensors, light ... sensors, digital joystick, RGB three-color lightsAccessory Demo Shield of Google to create Google ADK accessories compatible DFRduino ... 3.4 or Android 3.1 devices on the system interaction.Technical Specifications2 relay3-way steering controlAn external power ...