Flammable Gas Sensor MQ9 (Analog/Digital)
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.
EGP90.00
Features
- Support both the output digital value and the output analog value.
- Good sensitivity to CO/Combustible Gas.
- High sensitivity to Methane, Propane, and CO.
- Long life and low cost
- Pin Connection: GND: Ground, Dout: digital output, Aout: analog output Vcc: 5V
- Simple drive circuit.
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Using a MQ sensor and detecting the gas is quite easy. You can either use the digital pin or the analog pin to accomplish this. Simply power the module with 5V and you should notice the power LED on the module to glow and when no gas is detected the output LED will remain turned off meaning the digital output pin will be 0V.
