Bit-Tree Creativity - Resistive Soil Moisture Detection Sensor

Resistive Soil Moisture Sensor

The BIT‑TREE resistive soil moisture sensor is built with the high‑precision LM393 comparator chip. It runs on 3.3V‑5V wide‑range input voltage, providing dual analog (AO) and digital (DO) signal outputs for real‑time soil humidity measurement. An on‑board potentiometer tunes detection sensitivity alongside dual status indicator LEDs. It fits smart watering systems, agricultural monitoring, and maker STEM education applications.

Accurate Dual‑Mode Signal Output

Sturdy Construction With Wide Voltage Compatibility

Adjustable Detection Sensitivity

BIT-TREE CREATIVITY

STEAM skills like programming will be a core competency for the next generation, and the time to cultivate this ability is now.

Parameter Dimension	Specification Details
Product Model	A020
Product Weight	Cased weight: 13g — Bare PCB weight: 4.5g
Product Name	Resistive Soil Moisture Sensor (A020)
Operating Voltage	3.3V~5V
Output Mode	DO digital switching output (0/1) + AO analog signal output (ADC)
PCB Size	See attached drawing
Installation Method	PCB is designed with 3mm fixing bolt holes for easy mounting
Operation Stability	Equipped with LM393 chip for stable and reliable performance
Status Indication	Built-in power indicator + signal trigger indicator to monitor working status intuitively
Pin Definition	VCC: Positive power supply (3.3V~5V) GND: Power ground (common ground) DO: Digital switching output (0 / 1) AO: Analog signal output (ADC)
Optional Packaging Solutions	① Anti-static bag soft packaging ② White cardboard hanging hole box ③ Kraft paper box

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