MQ-2 Gas Sensor

The MQ-2 Gas Sensor is a board I/O module in the LabWired part catalog. Its catalog type is mq-2. It connects to the MCU over GPIO. The catalog gives a supply range of 4.5–5.5 V. It has 4 pins. This part is its pins. There is no separate device model because the MCU’s own GPIO/PWM/ADC model already is the simulation.

From the catalog: A0 is an ADC level; gas concentration is host-driven via SimInput, not a chemical model.

Key facts

Category	Board I/O modules
Catalog type	mq-2
Interface	GPIO
Supply range	4.5–5.5 V
Pins	4
Datasheet	Winsen MQ-2 flammable gas sensor manual

What LabWired simulates

MQ-2 Gas Sensor pinout

• Power: VCC, GND
• GPIO: D0
• Other signals: A0

How to simulate the MQ-2 Gas Sensor in LabWired

1. Open the Playground at app.labwired.com and place an MCU board.
2. Add the MQ-2 Gas Sensor (catalog type mq-2).
3. Connect VCC and GND to the supply and ground of the board. Use a supply inside the catalog range of 4.5–5.5 V.
4. Connect D0 to a free GPIO pin.
5. Connect A0 as your circuit needs.
6. Run the firmware. It reads and drives these pins through the GPIO, PWM and ADC models of the MCU. The part has no separate device model.

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Modelled from Winsen MQ-2 flammable gas sensor manual.