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Security alarm for Gas/Smoke without Microcontroller

Hello friends, today in this video i have shown how to make a simple gas/smoke alarm with MQ2 sensor without using any Microcontroller.

Components required for this project:-

MQ 2 gas/smoke sensor
Bc547 transistor
100 ohm resistor
1K resistor
6v buzzer
led any color
3.7v battery
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Видео Security alarm for Gas/Smoke without Microcontroller канала Tech Ideas
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8 февраля 2019 г. 17:01:20
00:03:09
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