Beginning Android ADK With Arduino by Mario Böhmer

Author:Mario Böhmer [Böhmer, Mario]
Language: eng
Format: epub, mobi
Tags: Computers, General, Programming, Software Development & Engineering, Technology & Engineering, Robotics
ISBN: 9781430241973
Publisher: Apress
Published: 2012-03-26T04:00:00+00:00

Project 7: Sensing Light Intensity with a Photoresistor

This chapter's project should provide you with a way to easily sense changes in the lighting of your surroundings. You will measure the voltage changes resulting from the intensity of exposure to light of a photoresistor on an analog input pin of your ADK board. The resulting converted digital value will be sent to the Android device to adjust the screen brightness of the Android device according to the surrounding light conditions. Most Android devices have such a sensor already built in to do exactly that, but this project should help you to understand how your device operates and how you can influence its light settings yourself.

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