MQ-135 Air Quality

The MQ-135 Air Quality is a board I/O module in the LabWired part catalog. Its catalog type is mq-135. 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/D0 gas level host-driven (same class as mq-2/mq-6).

Key facts

Category	Board I/O modules
Catalog type	mq-135
Interface	GPIO
Supply range	4.5–5.5 V
Pins	4
Datasheet	Winsen MQ135 air quality gas sensor manual

What LabWired simulates

MQ-135 Air Quality pinout

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

How to simulate the MQ-135 Air Quality in LabWired

1. Open the Playground at app.labwired.com and place an MCU board.
2. Add the MQ-135 Air Quality (catalog type mq-135).
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.

Related Board I/O modules

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• MAX98357 I2S Amp GPIO · Pins only, by design
• PIR Sensor GPIO · Pins only, by design
• Matrix keypad GPIO · Built from the datasheet
• Push Button GPIO · Built from the datasheet
• LED GPIO · Pins only, by design
• Rain Sensor GPIO · Pins only, by design
• L9110S Dual H-Bridge Motor Driver GPIO · Pins only, by design

All Board I/O modules · All parts

Modelled from Winsen MQ135 air quality gas sensor manual.