How to make a laser light security alarm system. Know more creative |
Published March 21, 2020
Views 76.5K | Likes 1.03K | Comments 37
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How to make a Laser light security alarm system. i’m using BC 547 trinsistor, LDR, buzzer LED, 150 ohm,10k resistor . you can make it very easy hope you guys enjoy this video| do not forget to subscribe our channel : https://bit.ly/2ZrHW57 emil : [email protected] facebook page : https://bit.ly/2Uqutrg twit…
- Published
- March 21, 2020
- Made for kids
- No
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