The Gas Sensor MQ-2 is a compact and versatile sensor module designed for detecting various gases such as LPG, propane, methane, alcohol, hydrogen, and smoke. It utilizes a small sensing element combined with a heating coil and an analog-to-digital converter to detect the presence of target gases. The module provides reliable gas detection in a wide range of applications, including gas leakage detection systems, industrial safety, and fire detection. It offers a cost-effective solution for monitoring and alerting against hazardous gas concentrations
Gas Sensor Detector Module MQ 2
SKU: 135
₹170.00 Regular Price
₹130.00Sale Price
Specification
- Gas Detection: LPG, propane, methane, alcohol, hydrogen, smoke, etc.
- Sensing Element: Semiconductor gas sensor
- Operating Voltage: Typically 5V DC
- Heater Resistance: 31 Ω ± 3 Ω at room temperature
- Load Resistance: Adjustable via potentiometer
- Dimensions: Compact size, varies depending on the module
Usage
- Power Supply: Connect the VCC pin of the module to the 5V pin of the microcontroller or power supply.
- Ground: Connect the GND pin of the module to the ground (GND) pin of the microcontroller or power supply.
- Analog Output: Connect the AOUT pin of the module to an analog input pin of the microcontroller or ADC (Analog-to-Digital Converter) module.
- Digital Output: Connect the DOUT pin of the module to a digital input pin of the microcontroller for digital gas detection output.
- Heater Control: Connect the HOUT pin of the module to a digital output pin of the microcontroller to control the heating element (optional).
- Load Resistance Adjustment: Adjust the potentiometer on the module to set the load resistance for optimal sensitivity.
- Coding: Write the microcontroller code to read the analog or digital gas detection values from the module and perform appropriate actions or display the readings.
- Calibration: Perform calibration as per the sensor's specifications and the target gas being detected (refer to the datasheet or documentation).
- Testing: Expose the gas sensor to the target gas and observe the readings or trigger actions based on the gas concentration.