Introduction: Burglar Alarm With IR Sensor

It is simple burglar alarm using ir sensor .

when any thing come near ir led & photo diode ,ir ray reflect and relay on then buzzer active

video on youtube

Step 1: You Need to Make This Project

Picture of You Need to Make This Project

IR proximity sensor

single channel relay module (5v)

small breadboard


old mobile phone battery or any other battery( 3.7v)

jumper wire

cabinet box ( I use soap case )

Step 2: Connection

Picture of Connection

keep ir module in digital mode.

connect ir module out to relay in pin

vcc to vcc & gnd to gnd .

now connect buzzer to relay & gnd

now supply with battery via bread board

Step 3: Fit to a Cabinet

Picture of Fit to a Cabinet

fit all components in a small case.I use small soap case

now test it & enjoy


About This Instructable




Bio: please visit my youtube channel Technoreview85 for more DIY project.I make new project regularly link--
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