Atmel describes how to control an AVR chip from an Android device.
This document introduces the Android Open Accessory Protocol for Atmel® microcontrollers. The library and examples are included in the Atmel AVR® Software Framework (ASF) to provide the customer with a quick and easy way to get started with developing an Android accessory. The existing demos are described in the Atmel AVR32848: Android Accessory Demo.
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