MQ-4 Gas Sensor Arduino Tutorial: Wiring, PPM Code & Live Methane Test
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YouTubeJust Botond
MQ-4 Gas Sensor Arduino Tutorial: Wiring, PPM Code & Live Methane Test
MQ-4 gas sensor Arduino tutorial: full wiring, the code to calculate real PPM, and a live test with actual gas to prove it works. This DIY natural gas and methane leak detector costs about $5 in parts and runs on an Arduino Uno. I cover the burn-in period everyone skips, analog vs digital output, setting the trigger threshold, and adding a ...
3.9K viewsMar 31, 2025
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