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An electronic code lock circuit

2017-01-06 21:15  
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The article describes an electronic code lock circuit. The circuit is very simple, very helpful. This circuit is very basic to build. Opening a lock will be connected to K1 momentary switch for each load must be in the correct order. This circuitry is used in the sequence S1, S2, S3, S4. Are there any other circuit will reset switch is pressed, you will need to start again. It depends on how you connect the switch, you can use any 4 switch combination. If you understand this principle is not very thorough, it is recommended to understand this circuit an important component: 1N914 . 

Combination Lock

 


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