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YouTubeTeknoTrek
Laser Security System using BC547 Transistor and LDR #security #diy
In this video, I’ve built a simple laser security alarm using a BC547 transistor, LDR, buzzer, and a 3.7V battery. When the laser beam is interrupted or blocked, the buzzer instantly turns ON, activating the alarm system. This is an easy DIY electronics project for beginners to understand how LDR sensors and transistors work together. Perfect ...
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This is one of the BEST lineups of new Fast Food in a while and it is SUPERSIZED with some great new releases and some collabs I'm gonna need immediately! We're getting a new Hot Ones collab at Jack in the Box, Burger King 'Crowns' are back, Sonic going all in on summer, Cinnabon bringing the cotton candy, Whataburger new chicken sandwich, Jersey Mike's has a fan favorite returning, McDonald's is about to go all in on the World Cup, Chipotle testing CRISPY chicken, and Krispy Kreme teaming up wi
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