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Product description: Unit MQ-5 - flammable gas sensor - M5Stack U199
The MQ-5 Unit is a compact combustible gas detection module based on the MQ-5 semiconductor sensor and an integrated STM32G030F6P6 microcontroller. Designed to detect the presence of gases such as LPG, methane, and propane , it is an effective component of security, environmental monitoring, and automation systems. The module communicates with a host device via an I2C interface , providing not only measurement data but also diagnostic information such as reference voltage, sensor voltage, raw ADC values (12-bit and 8-bit), firmware version, and integrated thermistor temperature. This gives the user complete control over the sensor's operation and the ability to precisely analyze data.
Unit MQ-5 - flammable gas sensor - M5Stack U199. 
Unit MQ-5 is a compact flammable gas detection module based on the MQ-5 semiconductor sensor and the integrated STM32G030F6P6 microcontroller.Special features
- MQ-5 sensor for detecting flammable gases
- Built-in STM32G030F6P6 microcontroller
- I2C communication with the ability to change the address
- Reading reference voltage, sensor voltage, and raw ADC data
- Two heating modes: continuous and intermittent (configurable)
- Integrated thermistor for temperature monitoring
- Standard MQ sensor connector - compatible with other MQ sensors
- Support for Arduino and UiFlow2 environments
Practical applications
The MQ-5 unit is ideal for gas leak detection systems in smart homes, air quality monitoring systems, and industrial applications requiring constant monitoring of flammable substances. Thanks to its flexible operating modes, it can also be used in mobile and battery-powered projects.
Sensor technical specifications
- Microcontroller: STM32G030F6P6, 32-bit ARM Cortex-M0+
- Sensor: MQ-5 (combustible gases)
- Detected gases: LPG, methane, propane
- Detection range: 300 ppm to 10,000 ppm (methane, propane)
- Communication interface: I2C (default address 0x11, configurable)
- Heating modes: continuous and intermittent
- Recommended warm-up time (continuous mode): 20 s
- Power consumption:
- Off mode: DC 5.02 V @ 6.88 mA
- continuous heating mode: DC 5.05 V @ 188.89 mA
- Dimensions: 64 x 24 x 25 mm
- Weight: 19.3 g
Contents of the set
- 1X M5Stack Unit MQ-5
- 1X HY2.0-4P Grove Cable (20cm)
It is designed to detect the presence of gases such as LPG, methane or propane.Useful links |
