Customer:
I purchased several sensors including the MQ-135 with easyC connector. Since there were no libraries readily available, I tried communicating with it similar to the hall effect sensor (SKU 333081), but I cannot make sense of the data coming from the MQ-135. How can I get the CO2 data?
Originally submitted via email support on 8 January 2024. Migrated to the forum for community visibility.
Soldered Support:
The sensor is connected via easyC (I2C). If you have the easyC version of the MQ-135 board, use this library: GitHub - SolderedElectronics/Soldered-MQ-Gas-Sensor-Arduino-Library: Library for all MQ sensor Soldered Boards. · GitHub
Check out this advanced example for easyC of MQ-135: https://github.com/SolderedElectronics/Soldered-MQ-Gas-Sensor-Arduino-Library/blob/main/examples/easyC/MQ-135-ALL-easyC/MQ-135-ALL-easyC.ino
If you don’t have the easyC version of this sensor, check out the ‘native’ examples in the same library.
For help installing the library, see this article: https://soldered.com/learn/arduino-library/