Adding sensors to your Arduino opens up a whole new world of exciting projects. ... Measuring the pH level of a water source can give you a range of information about the liquid.

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 ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture level. It uses Arduino Duemilanove microcontroller board. Two wires placed in the soil pot ...

Researchers at the Leibniz institutes FBH and ATB have recently enhanced an existing sensor platform for mobile soil mapping of agricultural fields. ... pH levels, and other key soil parameters.