[MQ-2 datasheet] UsageVCC - 5V GND - GND S - Analog pin0 Example codeint sensorValue; void setup() { Serial.begin(9600); // sets the serial port to 9600 } void loop() { sensorValue = analogRead(0); // read analog input pin 0 Serial.println(sensorValue, DEC); // prints the...
its reading as an analog voltage. The sensor can measure concentrations of flammable gas of 300 to 10,000 ppm.The sensor can operate at temperatures from -20 to 50°C and consumes less than 150 mA at 5 V. Please read theMQ2 datasheet(184k pdf) for more information about the sensor. ...
However, the results from the ppm value shows that MQ-6 is more sensitive compared to MQ-2 gas sensor, demonstrating a significant difference in terms of returned ppm values. Additionally, the results from the data revealed that the optimal distance for the placement of both sensors is 20 cm...
The main sensor component of the Ozone 2 click is theMQ131ozone (O3) gas sensor fromWinsen Sensor, which uses the SnO2 (tin-oxide) alloy, which decreases its resistance while exposed to the O3gas. The greater the O3concentration is, the more conductive this material becomes. This can be ...