Light control using ultrasonic sensor and relay module
Channel: CREATIVE ELECTRONICS - TO LEARN LOT OF CREATIVITY
Date: 2020-10-22

circuit :- 

you no need the circuit because of all pins in code only

Programming code:-
https://creativeelectronicsyt.blogspot.com/2021/08/how-to-light-control-using-ultrasonic.html

material used:-

1. arduino uno
2.ultrasonic sensor
3.relay module
4.bulb
5.Jumpers
6.plug
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