Laser Security Alarm Circuit
0:44
circuitdigest.com
Laser Security Alarm Circuit
In this circuit tutorial we are going to build a laser security alarm system which uses a laser light and a laser light detector circuit. It gets activated when someone crosses it.
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Tech on Instagram: "In 1997, a security camera installed inside a residential apartment complex in Phoenix, Arizona, recorded footage that at the time appeared entirely ordinary. According to later reports, the recordings remained archived for years without raising any concerns. In August 2014, a routine system review brought renewed attention to the footage after irregular patterns of behavior were identified. The individuals involved were later identified as Michael Thompson, then 41 years old
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Tech on Instagram: "In 1997, a security camera installed inside a residential apartment complex in Phoenix, Arizona, recorded footage that at the time appeared entirely ordinary. According to later reports, the recordings remained archived for years without raising any concerns. In August 2014, a routine system review brought renewed attention to the footage after irregular patterns of behavior were identified. The individuals involved were later identified as Michael Thompson, then 41 years old
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