Customer:
I have the MQ131 Ozone Sensor board (pn333124) with Qwiic connector. I need to verify the pinout - the datasheet link appears to be broken. I also want to run this board from a Raspberry Pi 4 B, but the example code available is for Arduino. Is there a way to make it work with the Pi?
Originally submitted via email support on 28 March 2026. Migrated to the forum for community visibility.
Soldered Support:
The datasheet PDF is available here: https://soldered.com/cdn/shop/files/Soldered-mq131-highconcentration-datasheet.pdf?v=15575250195843418814
The hardware repository for the sensor is here: GitHub - SolderedElectronics/Ozone-sensor-MQ131-breakout-hardware-design: Hardware design, BOM, gerbers and 3D files for Ozone-sensor-MQ131-breakout designed by Soldered Electronics. · GitHub
Currently we only have a library for the Arduino framework. However, the underlying code uses standard I2C commands to get data from the sensor, so you should be able to port it to Python. A Micropython port is planned for the near future.