MQ4 Methane Gas Sensor potentiometer Orange Pi 2G-IOT is for

Orange Pi 2G-IOT is for anyone who wants to start creating with technology – not just consuming it

Multipoint communication address control

module connected to the power automatically after connected to the network

- Terminal block connectors for motors and power

- for the negative power is ground)

MQ4 Methane Gas Sensor potentiometer Orange Pi 2G-IOT is forMQ 4 gas sensor sensitive material used in clean air conductivity is lower in tin titanium dioxide (SnO2). If the sensor is present in the environment in which the flammable gas, the sensor's conductivity increases with the concentration of flammable gases in the air increases. With a simple circuit, the change in conductivity of the gas concentration can be converted with the corresponding output signal. MQ 4 methane gas sensor for high sensitivity,