LM393 Soil Moisture Sensor Module Overview
This soil moisture sensor module utilises the LM393 comparator chip to provide stable and accurate readings. It is designed for use in automated watering systems, smart gardening projects, and educational settings.
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 indicator (red) and digital output indicator (green)
Technical Specifications
| Parameter | Value |
|---|---|
| VCC | 3.3V-5V |
| GND | External GND |
| DO | Digital output (0 and 1) |
| AO | Analog output |
Instructions
- Use this module to detect soil moisture levels in various environments.
- The module outputs a high signal when soil moisture is below the set threshold.
- Connect the digital output to a microcontroller or relay module for automated control.
- For more accurate readings, use the analog output with an AD converter.
