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Long-Range Burglar Alarm Using Laser Torch

Long-Range Burglar Alarm Using Laser Torch

7

4

3

6

2

1

5

8

IC1

7555

+

C1

100μ

10V

R3

220Ω

T1

SK100

LASER

TORCH

GND

+3V

C3

0.01μ

C2

0.01μ

R1

22K

R2

2.7K

Long-Range Burglar Alarm Using Laser Torch

3
0
0
publish time: 2020-09-18
Circuit Everyday

Since the anti-theft alarm of the laser torch usually only works in the dark, this remote photoelectric alarm can work during the day and can also warn you of intruder compounds in a large area. The alarm includes a laser transmitter and receiver unit, which should be installed on the opposite pillar of the entrance door. Once someone enters and interrupts the laser beam, the beam falls on the receiver, and the buzzer in the circuit sounds an alarm.

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