IDUINO for maker’s life User Manual For MQ-2 Smoke Gas Detector Sensor Module For Arduino (ME084) www.openplatform.
IDUINO for maker’s life Description: MQ-2 gas sensor sensitive material used in the clean air low conductivity tin oxide (SnO2). When there is the environment in which the combustible gas sensor, conductivity sensor with increasing concentration of combustible gases in air increases. Using a simple circuit to convert the change in conductivity of the gas concentration corresponding to the output signal.
IDUINO for maker’s life PinOut Pin Vcc Gnd D0 Description Power supply 5V/DC Ground Digital Output pin Example In this example, we use the digital output pin D13 to sense the change of environment gas concentration. When the gas concentration arrive at some level, the buzzer is ring. Wire connection as below: Vcc-------------5V Gnd-------------Gnd D0--------------A0 ********Code Begin********* const int sensorPin= 0; const int buzzerPin= 13; int smoke_level; void setup() { Serial.
