IR MOTION SENSOR ALARM

by BHARATMOHANTY in Circuits > Sensors

663 Views, 4 Favorites, 0 Comments

IR MOTION SENSOR ALARM

hi in this tutorial i am going to show you how i made a ir motion sensor alarm.

1111.png

this is a simple transistor based circuit here i use two ir led and one ir photo diode.second ir led IS CONNECTED with buzzer parallel through a switch.

2222.png

this ir led creates a latch because of it our buzzer continuously on even after object is not available.

3333.png

as i mentioned if we want to stop alarm we need to reset it

with this switch.

4444.png

here is the circuit diagram for better understanding

5555.png

now we can test it. you can watch video to understand how it works.

THANKS