Little Bird
Soil Moisture Sensor
This versatile soil moisture sensor is designed for easy integration with both Arduino and Raspberry Pi projects, making it a great choice for hobbyists a...
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This versatile soil moisture sensor is designed for easy integration with both Arduino and Raspberry Pi projects, making it a great choice for hobbyists and developers alike. It features both analog and adjustable digital outputs, allowing for fine-tuned control and monitoring of soil moisture levels. With a built-in LM393 comparator for digital output and an adjustable potentiometer, you can customize the sensitivity to suit your specific needs. The sensor is equipped with power and status indicator LEDs, so you can easily see the sensor's operational status at a glance.
Key Features:
- Dual Output Mode: Provides both analog and adjustable digital outputs for flexible use in a variety of projects.
- Adjustable Sensitivity: Fine-tune the sensor’s performance using the built-in potentiometer.
- LM393 Comparator: Ensures reliable digital output for accurate soil moisture detection.
- Indicator LEDs: Red LED for power status and green LED for digital output status.
- Compact Design: Easy to integrate into your projects with a compact PCB and soil probe.
Specifications:
- Operating Voltage: 3.3V - 5V
- PCB Dimensions: 3cm x 1.5cm
- Soil Probe Dimensions: 6cm x 2cm
- Cable Length: 21cm
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Outputs:
- Digital Output (DO): Boolean signal
- Analog Output (AO): 0 - VCC (3.3V - 5V)
- Comparator Chip: LM393
This sensor is perfect for building smart garden projects, automated plant care systems, or any DIY projects requiring soil moisture monitoring.
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode (LED) is a small electronic component that emits light when current flows through it in the correct direction. Because it only conducts one way, its polarity matters, and a through-hole LED must be soldered the correct way around to light up.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- potentiometer
- A variable resistor usually turned with a knob or shaft to create an adjustable electrical signal. It is often used for inputs such as volume, brightness or position, so it helps beginners learn how a microcontroller reads changing values.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
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Sensors & Input
Project Guides
Step-by-step builds that use this part
Related Tutorials
Free guides on learn.littlebird.com.au
