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with fully Arduino Cloud compatibility
simple to use AT command ie
the external circuit is simple(just plug in the switch and battery)
Arduino USB programming Cable (1)
Pixel Size: 3
Flammable Gas Sensor MQ9 (Analog/Digital) chassis with fully Arduino Cloud compatibilityIntroduction: MQ 9 gas sensor has high sensitity to Carbon Monoxide, Methane and LPG. The sensor could be used to detect different gases contains CO and combustible gases, it is with low cost and suitable for different application. The sensitivity of the sensor can be adjusted by using the potentiometer. Features Support both the output digital value and the output analog value. Good sensitivity to CO Combustible Gas. High sensitivity to Methane,
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