MQ-3 SENSOR WITHOUT ARDUINO
Hi in this video i will show you how to use MQ-3 sensor without arduino
components needed
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1)mq-3 sensor - https://amzn.to/3BtsOby
2)1k resistor -2
3)10k resistor
4)bc557 transistor or any pnp transistor
5)buzzer
6)5mm led
7)10uf capacitor
8)pcb
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