Soil Moisture Sensor Module
This module detects soil moisture levels, outputting a high signal when dry and a low signal when moist. Ideal for automated watering systems and DIY projects.
Key Features
- Adjustable sensitivity via digital potentiometer
- Operating voltage: 3.3V-5V
- Dual output mode: digital and analog
- Fixed bolt hole for easy installation
- Compact PCB size: 3cm x 1.6cm
- Power and output indicators
- Stable LM393 comparator chip
Connections
- VCC: 3.3V-5V external
- GND: external ground
- DO: digital output (0 and 1)
- AO: analog output
Instructions
- Detect soil moisture levels
- Digital output for direct microcontroller connection
- Analog output for more accurate moisture readings via AD converter
- Can drive relay module for soil moisture alarm
