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Various simple electronics projects for beginners

Various simple electronics projects circuits diagrams for hobbyist and beginners . Simple circuits, mini projects with diagrams and description from many electronics categories.

Single button electronic lock circuit diagram electronic project

A very simple electronic lock that uses a single button to enter the code can be designed using electronic scheme in the figure below.

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Circuit Diagram: 
Single button electronic lock circuit diagram part 1
Single button electronic lock circuit diagram part 2

Piezo warning buzzer electronic project

A piezo warning buzzer electronic project can that be used for various applications requiring warning system can be built using electronic scheme in the figure below.

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Circuit Diagram: 
Piezo warning buzzer electronic project circuit diagram

Electronic lock circuit using LS7220 integrated circuit

This simple electronic lock circuit diagram uses few electronic components and LS7220 integrated circuit.

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Circuit Diagram: 
electronic lock circuit using LS7220 integrated circuit

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