Soil Moisture Sensor Module (YL-69 / FC-28)
The YL-69 Soil Moisture Sensor Module with FC-28 controller board is designed to measure soil moisture by detecting changes in soil conductivity. It provides b…
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Product Description
Overview
The YL-69 Soil Moisture Sensor Module consists of a two-probe moisture sensor and an LM393-based controller board. It measures soil moisture by detecting changes in electrical conductivity between the probes. The onboard potentiometer allows users to adjust the digital output threshold for moisture detection.
It is widely used in automatic irrigation systems, smart agriculture, greenhouse monitoring, and educational electronics projects.
Specifications
Module Name: YL-69 Soil Moisture Sensor Module (FC-28 Controller)
Sensor Type: Resistive Soil Moisture Sensor
Comparator IC: LM393 Dual Voltage Comparator
Operating Voltage: 3.3 V to 5 V DC
Working Current: 15–20 mA
Output Type: Analog Output (AO), Digital Output (DO)
Digital Output Level: LOW when moisture exceeds threshold, HIGH when below threshold
Sensitivity Adjustment: Onboard Potentiometer
Interface: VCC, GND, AO, DO
Indicator LEDs: Power LED, Status LED
Detection Method: Electrical Conductivity
Probe Dimensions: 60 × 20 mm
Controller Board Dimensions: 32 × 14 mm
Operating Temperature: -10°C to +60°C
Weight: 15–20 g
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