Boardoza Resistive Soil Moisture Sensor Breakout Board
Boardoza Moisture Sensor Board is a compact analog soil moisture sensing solution designed for plant monitoring, smart irrigation, and environmental measurement applications. The board uses a resistive sensing method to determine soil moisture by measuring the conductivity between two exposed electrodes. As the soil moisture increases, its electrical resistance decreases, producing a corresponding analog output voltage. The simple transistor-based signal conditioning circuit provides a cost-effective and reliable interface for microcontrollers and embedded systems. It operates from either 3.3V or 5V supplies and can be directly connected to ADC inputs for real-time moisture monitoring.

Key Features
- Analog resistive soil moisture measurement
- Operates from both 3.3V and 5V supply voltages
- Direct analog output for MCU ADC inputs
- Simple transistor-based signal conditioning
- Fast response to soil moisture changes
- Low-cost and compact design
- ENIG plated sensing electrodes for improved oxidation resistance (\*For longer service life, Only supply voltage to board while measurement)
- Suitable for plant monitoring, smart irrigation, and educational projects
Technical Specifications
- Item
- Moisture Sensor Board
- Input Voltage
- 3.3V–5V
- Functions
- Analog soil moisture measurement
- Interface
- Analog Output
- Surface Finish
- ENIG (Immersion Gold)
- Operating Temperature
- -55°C / +150°C
- Board Dimensions
- 22.2mm x 60.3mm
Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.
