This Moisture Sensor can be used to detect the level of soil moisture. It is further able to detect if there is water around the sensor. This could be useful in planting projects, where the sensor may indicate when certain plants are in need of water. The module is very easy to use, just insert it into the soil and then read the output value (look at the specifications tab). With help of this sensor, if coded properly, the plant can remind you: "Hey, I am thirsty now, please give me some water."
This module can be used well with Arduino and other circuit boards.
|Output Value||Sensor in dry soil||0||~||300||/|
|Sensor in humid soil||300||~||700||/|
|Sensor in water||700||~||950||/