DIY ELECTRONIC CODE LOCK | 4 DIGIT PASSWORD CIRCUIT
6:39
YouTubeHow To Technical
DIY ELECTRONIC CODE LOCK | 4 DIGIT PASSWORD CIRCUIT
Hi Friends ! In this electronics project, we will make an electronic code lock or a four digit password system. In this circuit, we are using a CD4017 CMOS decade counter IC to control the lock or unlock operation of the circuit. The four push buttons connected to pin nos. 2,3,4 and 7 of the IC represent a 4 digit password and must be pushed in ...
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