Soil and CO2 geeks unite!
We finally got hands on a bunch of sponsored direct from factory CO2 sensors, the newest from Sensirions high-end stuffs…
It’s all part of our research within UROŠ, which has started during the last weeks. More about UROŠ - Ubiquitous Rural Open Science Hardware in this forum.
Sofar we received 15 breakout boards with the SCD41, and hopefully we get another whole batch of the pure sensors, so we can design our own “branded” circuit board (even before it’s being release or shipped by adaftruit and seeed etc.)
The sensor prize is in the range of 50 USD, so it’s kinda cheaper than most others… but more expensive than the popular MH-Z19 from the chinese manufacturer Winsen.
First measurements in my smokey forest house show faster reaction times and the included humidity sensor is also practical. The library is super complete, and allows more in-depth interaction with the sensor, calibrations, altitude correction, etc… precision is guaranteed from 0 - 5000 ppm, but it can read values up to 40’000 ppm. Also the I2C should allow to add many sensors to the same microcontroller, unlike the winsen which was a serial comm.
So it’s use in greenhouse or fermentation monitoring should be possible. The small footprint might bring some other application ideas for Open Science Hardware aswell, beyond the standard use case for indoor air quality monitoring.
