Friday, 14 August 2015

Laser Alarm

09:34  Telli k  No comments

To make this simple alarm not even need more time. Yes we should have an NPN transistor that I have chosen them BC547, a rsistor100k and a consumable that you should inform you of any cases dagger .But I also used a plate with two transistors to pass on the issue of sound stood is you can even witho...
By: electronici

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from Instructables: exploring - technology - robots http://ift.tt/1JXpczw

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