Showing posts with label Circuit Diagram of. Show all posts
Showing posts with label Circuit Diagram of. Show all posts

Circuit Diagram of door bell

Doorbell Circuit

The electronic doorbell in this article is the most simplest among the advance projects in this website. There are many other benefits of the project doorbell. The circuit for the electronic doorbell here will help realize whether the visitor is in front door or in back door. More about there is two LED indicatorwith different colours which provide visual indication to check if anyone had come nor not in your absence.your absence.

PART LIST
Transistors T1,T2,T5     BC148B
T3,T4     BC158B
T6     AC128
Diodes D1,D2,D3,D4     1N4001
D5     GREEN LED
D6     RED LED
Capacitors C1,C2,C3     0.01 μF