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Google Android Open Accessory Development Kit / ADK Boards

Sam Biddle


With the Google announcement of its Android Open Accessory Development Kit (ADK) at Google I/O 2011, Google joined Apple in the game of allowing mobile apps to interface with accessories. The Android Open Accessory will give hardware developers, a new API and an open accessory development boards to work with. This will allow external USB hardware (an Android USB accessory) to interact with an Android-powered device in a special “accessory” mode. When an Android-powered powered device is in accessory mode, the connected accessory acts as the USB host (powers the bus and enumerates devices) and Android-powered device acts as the device.


The reference ADK boards will be available for software and hardware developers or even anyone interested in things electronic to develop accessories that will work with apps. This USB accessory is based on the popular Arduino Mega2560 and Circuits@Home USB Host Shield designs, since it communicates to the phone in its “accessory” mode. Developers can get the custom library / firmware with software to work with to make it run and test with shield. The programming language is based on Wiring and is very like C/C++.

ADK Challenge –

The challenge on the Google’s ADK FR-4 double-sided boards is keeping the white consistent along the big panels. The 6 different legends and colors becomes a challenge not only to ensure spacing and straightness but to make sure that white color doesn’t show through and the Google brand colors stands out.

Media Related –

Google’s Android ambitions go beyond mobile (San Jose Mercury News).

About Cirexx International

Founded in 1980, Cirexx International, Inc. is an electronic solutions company offering PCB Design, PCB Fabrication and PCB Assembly of high-reliability Printed Circuit Boards, RF/Microwave Circuit Boards, Flexible Printed Circuits and Rigid-Flex Circuit Boards. Recognized as a time-technology leader, the company offers a genuine Quick Turn service and provides a one stop shop and all in-house solution known as Seamless Integration. Cirexx has expertise fabricating high layer count Printed Circuit Boards using a variety of substrates including a wide array of high-frequency RF-based materials in mixed (hybrid) constructions. Cirexx delivers unsurpassed quality and support to a large array of customers in the high-reliability markets of defense/aerospace, industrial, and medical instrumentation.

written by
Sam Biddle
Market Strategy & Development


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