Soil Moisture Sensor Breakout & Water Content Detector | Moisture Sensor | Arduino Irrigation & Plant Monitoring
Description
The (SPIDER Automation) Soil Moisture Sensor is a simple yet effective breakout board designed for tracking moisture levels in soil and comparable growing mediums. The sensor operates on a straightforward variable resistance principle: its two large, exposed copper pads function as dual probes. Higher water content in the surrounding soil enhances electrical conductivity between these pads, dropping the resistance and producing a higher analog SIG output voltage.
This upgraded version comes equipped with a pre-soldered 3-pin screw terminal block, eliminating tedious soldering work and allowing for fast, secure wiring. To begin monitoring, simply connect the VCC and GND pins to a compatible development board and read the analog signal output to evaluate hydration levels for automated watering systems.
Note: Like standard resistive soil sensors, prolonged exposure to damp environments can degrade the probe pads over time; proper circuit management or intermittent sampling is recommended to maximize operational lifespan.
Key Features
- Exposed Probe Pads: Dual large contact areas optimize electrical conductivity within soil media.
- Pre-Soldered Screw Terminal: 3-pin screw block ensures secure, tool-tightened wire connections.
- Dual Voltage Compatibility: Operates reliably on standard 3.3V or 5V logic power supplies.
- Analog Signal Output: Yields a variable SIG voltage level proportional to water concentration.
- Compact Breakout PCB: Designed for easy integration into potted plants and custom enclosure setups.
- Standard Microcontroller Support: Connects directly to analog input pins on compatible development boards.
Benefits
-
- Effortless Setup: Pre-soldered terminals save valuable time and eliminate initial assembly friction.
- Real-Time Environmental Feedback: Continuously monitor soil moisture fluctuations to fine-tune irrigation cycles.
- Simple Interfacing: Straightforward analog output requires minimal code to read and interpret.
- Compact Form Factor: Slim layout fits discreetly into potted plants, greenhouses, and small test beds.
- Cost-Effective Prototyping: Excellent baseline module for learning environmental sensing and automated control loops.
- Flexible Power Integration: Runs safely on standard 3V3 or 5V microcontroller power rails.
Applications
- Automated Plant Watering Systems: Triggering water pumps or relay modules based on real-time soil dryness thresholds.
- Smart Agriculture & Greenhouses: Monitoring hydration distribution across multiple soil test beds.
- STEM & Educational Electronics: Teaching students about analog sensors, environmental variables, and threshold triggers.
- Potted Plant Monitoring: Building balcony or desktop moisture alarm notification setups.
- Soil Composition Testing: Comparing moisture retention across different soil and substrate mixes.
- DIY Microclimate Logging: Incorporating soil data tracking into custom weather station projects.
Package Includes
- 1 x Soil Moisture Sensor Module
Specifications
| Parameter | Specification |
|---|---|
| Item Type | Soil Moisture Sensor Breakout Module |
| Brand | SPIDER Automation |
| Supply Voltage | 3.3V or 5V DC |
| Terminal Type | Pre-soldered 3-Pin Screw Terminal |
| Output Type | Analog Signal (SIG) |
| PCB Material / Color | FR4 Standard Layout |
| Product Dimensions (L × W) | 61.14 mm × 22.78 mm |
| Product Weight | Approx. 4 g |
| Shipping Weight | 0.008 kg |
| Shipping Dimensions | 6 cm × 6 cm × 2 cm |
| Warranty | 1 Year Supplier Warranty (Against manufacturing defects only) |