We present a unified library for MQ sensors, this library allows to read MQ signals easily from Arduino, Genuino, ESP8266, ESP-32 boards whose references are MQ2, MQ3, MQ4, MQ5, MQ6, MQ7, MQ8, MQ9, MQ131, MQ135, MQ136, MQ303A, MQ309A.
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how to use MQ2 to detect smoke. as the A and B value not given. #48
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JerryLoveCat closed 3 years ago
@JerryLoveCat how did you find these values?