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Simple Electronic Lock Circuit Principle

2015-01-08 06:53  
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Here is about Simple  Electronic Lock Circuit principle introduction,there are six or more push switches. If  'unlock' you must press all the correct ones at the same time,but not press any of the cancel switches. Pressing just one cancel switch will prevent the circuit unlocking. When the circuit unlocks it actually just turns on an LED for about one second, but it is intended to be adapted to turn on a relay which could be used to switch on another circuit. Stripboard Layout:Simple Electronic Lock Circuit Principle Circuit diagram:

Simple Electronic Lock Circuit Principle