Bringing Mayfly Data Logger to the UK and EU

At last year's Open Hardware Summit in Edinburgh, during a panel on environmental monitoring I came across a data logger I'd not come across before. Shannon Hicks at the Stroud Water Research Center introduced us to the Mayfly open-source data logger they developed as part of their EnviroDIY toolkit. What makes this data logger special is its support for commercial sensor probes. By using calibrated off-the-shelf probes there's no need for upfront sensor characterization and calibration. As someone who's spent more time than I'd like characterising the current-intensity curve of a homemade probe, the appeal of calibrated off-the-shelf sensors is obvious. The Mayfly has an add-on socket for accessories like 4G/LTE, WiFi/Bluetooth or an OLED display, and includes Grove ports, Qwiic/Stemma-QT ports, SD card sockets and a real-time clock powered by a coin cell battery. It can be powered using LiPo batteries and a solar panel, and can be programmed using the Arduino IDE or PlatformIO.…