https://www.cam.ac.uk/research/news/smartphone-screens-effective-sensors-for-soil-or-water-contamination
Researchers from the University of Cambridge have demonstrated how a typical touchscreen could be used to identify common ionic contaminants in soil or
water contaminationsmartphonescreenseffectivesensors
https://pycno.co/
Easy to use, professional weather stations and soil sensors. Data visualisation, crop analytics and predictions aggregated in one platform.
soil sensorsweather stationsagriculture