The soil moisture sensor module , built around the LM393 comparator, gives an active-low (L) level output when the soil is dry (determined by a pre-setted threshold value). This digital output (wet ...

So a low-power radio network for soil moisture sensors is ... The soil sensor switches half of an etched PCB bowtie antenna in and out of a circuit at a frequency proportional to soil ...

In a way, the magic of a soil moisture sensor’s functionality boils down to a simple RC circuit. But of course, in practice there is a bit more to it than that.

The circuit described here might be very simple, but it’s a very useful soil moisture tester. Two electrodes are stuck in the soil and the moisture level is shown on an LED display. The LEDs have been ...

My soil-moisture reading was in the low 700s in soil that had around 30 percent moisture (according to a comparison with a commercial soil-moisture sensor), and 661 in a drier pot.

BEAVERTON, Oregon — Vernier Science Education recently launched the Go Direct ® Soil Moisture Sensor to help high school and college-level students easily and accurately collect data during soil ...

Soil moisture measurement is fundamental to understanding hydrological processes, crop water dynamics, and broader environmental monitoring. Recent advancements have driven the development of ...

Soil moisture sensors can help farmers save water, by letting them know when their crops actually need to be watered. A new sensor could be particularly helpful, as it incorporates a special ...

Soil moisture in cotton, corn and soybeans was monitored throughout the growing season. That study, now in its late stages, found that irrigating at optimal levels increased the value of the crops.