Saturday, April 24, 2010

SONAR

I've had a few electronic designs published lately -- but actually (shhh), I've designed nothing new in a year. With one single exception, that is -- a SONAR (= SOund NAvigation Ranging). This appears in next month's Everyday Practical Electronics (EPE) magazine. What makes the design special is that it uses only a dozen common components. While its range is only one metre/yard, this is still tremendously useful. It will detect a door opening, a car/automobile approaching a wall, a suitcase being moved, and so on. OBSERVATION: I have a Super Simple Sonar on this blog, except that this will not switch anything. The EPE design will switch on the city lights if desired.

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