As I've experimented and played with a lot of different sensors, I've discovered that these basic devices can be built for ...

This data set contains gridded estimates of soil moisture in the top 1 cm of soil, averaged over the AMSR-E retrieval footprint. Soil moisture is estimated from AMSR-E/Aqua L2A brightness temperature ...

Researchers at Purdue University are creating soil sensors that will gather that data to train AI. “Right now, a soil moisture sensor, you’d have about 1 of those per 100 acres.