June 28, 2022 by AFZAL REHMANI
In today’s tutorial, we will go over a step-by-step procedure on how to design a simple Laser Tripwire Security Alarm
A laser tripwire security alarm is a simple security system that can detect the movement of any intruding person or object passing through the beam of a laser & triggers an alarm accordingly. The red line laser actually triggers a latching switch, that can be connected to any external load/security device such as a loudspeaker alarm, floodlight, or CCTV cameras.
Laser tripwire alarms have become a staple for home security systems & mandate their presence in every security detail for any place. So, in today’s tutorial, we will go over a step-by-step procedure on how to design a simple Laser Tripwire Security Alarm using an LDR & a NE555 timer IC.
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