00:00First we will see this video and then we will talk about this gadget.
00:07This is a small gadget that looks simple, but it is a simple task.
00:11If this is a red laser light, then it will be a buzzer like this.
00:16This is a security alarm system, laser trip wire, or door alarm.
00:23If this is a laser light, LDR sensor, transistor, buzzer, and battery, this is an easy circuit.
00:30If you have a amazing electronic project, please like this video and subscribe to the channel.
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