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	Electronic Letter Box Project Circuit The circuit which is explained below is been employed as an Electronic Letter Box. When letter drop by someone into the letter box then the LED attached at the output stops blinking Add to Reading List Document Date: 2014-02-17 03:45:54 Open Document File Size: 255,96 KB Share Result on Facebook

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Electronic Letter Box Project Circuit The circuit which is explained below is been employed as an Electronic Letter Box. When letter drop by someone into the letter box then the LED attached at the output stops blinking Add to Reading List