Видео с ютуба Laser Sensor On Breadboard (Easy Tutorial)

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How to make Laser Security Alarm System on Breadboard at Home

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Laser Security System Using LDR and BC547 Transistor #security

How to make a Laser alarm security circuit on breadboard (Step by step tutorial)

How to make a "Laser Sensor" on a Breadboard.

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Breadboard connection

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