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Trade-offs: 2-in-1 or 3-in-1 ambient light and proximity sensor

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re: Trade-offs: 2-in-1 or 3-in-1 ambient light and proximity sensor
agk   10/26/2012 11:53:33 AM
The author described briefly about the challenges involved in combining a light sensor with a LED.Like we know that combining a mic and a loud speaker in a audio system will bring a big howling sound due to acoustic feed back. Many techniques are adopted to reduce the same or totally to remove it. Similarly combining a light sensor with a LED also will produce a lot of light feed back.

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