Hello friends, hope all will be well, today I will tell you about how to make a key switch system, because many people want to keep their room and computer private, for that this key switch system will prove to be very beneficial.
Using This Components –
-
5v Relay – https://amzn.to/3goDVJu
-
9v Battery – https://amzn.to/3wlU3nM
-
Key Switch & Key – https://amzn.to/3w8wkWn
-
Bulb – near electric shop
-
Connector pin and bulb holder – Near electric shop
This is its Circuit Diagram –
