Android rocked the physical computing landscape last spring when it announced the Android Open Accessory Development Kit (ADK), an Arduino-based platform that combines the brains and connectivity of the Android with Arduino’s wealth of open source wares for controlling physical devices. The ADK presents almost limitless potential for projects.

Now the ADK TinkerKit unleashes this potential with the new Arduino Mega ADK (also sold separately for $85), which interfaces with an Android device via a USB host, and a multitude of modules such as LEDs, relays, joysticks, potentiometers, touch and temperature sensors, and many more. One caveat: the documentation on how to work with this technology, which bridges the Arduino and Android environments, is still sparse, and working with this kit is not for the faint of heart.