5pcs LM393 Soil Moisture Sensor for Arduino Automatic Watering System

The 4-wire wiring for the LM393 Soil Moisture Sensor is as follows: 1) External VCC 3.3V-5V 2) External GND 3) Digital output interfaces for small board (0 and 1) 4) Analog output voltage for small board

Instructions for use: 1. This sensor is designed to detect soil moisture. 2. The blue potentiometer is used to adjust the threshold for soil moisture. Turning it clockwise will increase the humidity control, while turning it counter-clockwise will decrease it. 3. The digital outputs (D0) can be directly connected to a microcontroller to detect high and low levels, allowing for soil moisture detection. 4. The analog output modules (AO) can be connected to an AD converter to obtain a more accurate soil moisture value. 5. This sensor operates with a voltage range of 3.3V-5V. 6. It has fixed bolt holes for easy installation. 7. PCB Size: 3.2cm x 1.4cm

Package includes 5 LM393 Soil Moisture Sensors.

This simple moisture sensor is perfect for detecting soil moisture levels. When the soil is dry, the module will output a high level; when the soil is moist, the output will be low.

This sensor can be used to create an automatic watering device to keep your garden plants watered without the need for constant monitoring. The module has dual output modes, with a simple digital output and a more accurate analog output. The sensitivity is adjustable using the blue digital potentiometer.

The comparator uses an LM393 chip for stable and reliable operation.

product information: