Moisture Detection – Soil Hygrometer Module for Arduino

•Working voltage : 3.3 V — 5 V

•The sensitivity can be adjust by potentiometer

•Comparator adopted LM393 chip for stability

•Double output mode, The digital output is simple and more accurate analog output.

•The analogue output provides a voltage level that varies with the level of moisture detected.

•PCB board  size: 3 cm * 1.6 cm

•Set fixed bolt hole for convenient installation

Interface specification :

VCC —— external 3.3 V to 5 V

GND —— external GND

DO —— small plate digital output interface (0 and 1)

AO —— small plate analog output interface