Ozone Sensor MQ131 Breakout with Qwiic
The MQ131-H is the high concentration version of the MQ131 ozone sensor, designed for detecting ozone (O₃) levels in the 10 - 1000 ppm range. This sensor offers good sensitivity to O₃ and operates on the semiconductor detection principle, making it ideal for industrial and environmental applications.
The sensitivity and selectivity of the MQ131 sensor enable it to effectively detect and measure ozone levels, making it a valuable tool for applications such as air quality monitoring, ozone generators, and ozone leakage detection systems. By integrating the MQ131 sensor with appropriate electronic circuits and microcontrollers like Dasduino, you can create systems that enable real-time monitoring of ozone concentration and trigger alerts when dangerous levels are detected.
The breakout board provides digital and analog readings via the Qwiic system, allowing smooth integration with platforms that support this interface. Sensor data is easily accessible through Qwiic.
Product usage tips:
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When gas is detected, the LED will light up. It will remain off if no gas is detected.
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The board includes four mounting holes for easy installation.
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Comes with three male headers for UPDI programming the onboard ATTINY, which is not required for normal usage
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- Detects: ozone (O3)
- Voltage: 3V3
- Output: digital
- ATTiny404 microcontroller onboard
- qwiic connectors
- Dimensions: 54 x 22 mm / 2.1 x 0.9 inch
Interface
| Interface | I2C |
|---|---|
| Qwiic Compatible | Yes |
| I2C Address Default | 0x30 |
| I2C Address Changeable | Yes |
| Breadboard Compatible | Yes |
Measurement
| Measurement Types | Gas |
|---|
Power
| Supply Voltage Min V | 3.3 |
|---|---|
| Supply Voltage Max V | 3.3 |
| Logic Level | 3V3 Only |
Other
| Ic Part Number | MQ131 |
|---|---|
| Mcu Part Number | ATTINY404 |
Plug into any Soldered Dasduino or microcontroller with an easyC cable — no soldering required.
Add the Soldered library for your language (below).
Open the get-started example and read your first value.