Yara approached sparkpluck in 2019 to work on the development of Yaralrix. I am under an NDA for the project, below is an excerpt from Yara’s press release:

The YaraIrix system includes a free-to-download-app (for Android & iOS), which uses the smartphone camera to determine Nitrogen demands of different crops in early growth stages. For later growth stages, the app is supplemented by two hardware options (a smartphone clip and a Bluetooth N-Tester).

I am credited as an inventor on the patent for the project. View the patent on the European Patent Register

Find out more about Yaralrix from Yara’s press release