Soil Moisture Sensor Module with LM393 – Analog and Digital Output for Plant Watering Detection

Accurate Soil Moisture Detection for Smart Gardening and Plant Care

The Soil Moisture Sensor Module is a reliable soil humidity detection system consisting of two main components: an LM393 signal processing amplifier and a moisture-sensing probe. This module is designed to measure soil dampness levels, helping you determine when your plants need watering. Featuring both analog and digital outputs, adjustable threshold settings, and an anticorrosion probe, this sensor is perfect for automated plant watering systems, smart gardening projects, and agricultural monitoring applications.

Key Features & Benefits

Dual Component Design The module combines an LM393 signal processing amplifier circuit with a durable moisture-sensing probe to deliver accurate and reliable soil humidity readings.

Adjustable Threshold Detection Set your desired moisture level using the onboard potentiometer. When soil humidity falls below the configured threshold, the D0 digital output goes high, signaling that watering is needed; otherwise, it outputs low.

Dual Output Modes Provides both digital (D0) and analog output signals, offering flexibility for different project requirements. Use the digital output for simple on/off watering control or read analog values for precise moisture level monitoring.

Wide Voltage Compatibility Operates on a voltage range of 3.3V to 5VDC, making it compatible with Arduino, Raspberry Pi, ESP8266, ESP32, and other popular microcontroller platforms.

Anticorrosion Probe The sensor probe features anticorrosion treatment, ensuring durability and longevity even with prolonged exposure to soil and moisture.

Simple Analog Reading The analog signal output makes usage straightforward – simply insert the sensor probe into the soil and read moisture levels using any Analog-to-Digital Converter (ADC) on your microcontroller.

Compact PCB Design With a PCB size of just 3.6cm x 1.5cm, the control board fits easily into small enclosures and project boxes.

Technical Specifications

• Components: LM393 signal processing amplifier + moisture sensor probe
• Operating Voltage: 3.3V to 5VDC
• Output Signals: Digital (D0) and Analog
• PCB Dimensions: 3.6cm x 1.5cm
• Probe Material: Anticorrosion treated
• Threshold Adjustment: Onboard potentiometer
• Digital Output Logic: High when moisture below threshold, Low when above threshold

Perfect For

• Automatic plant watering systems
• Smart garden monitoring projects
• Arduino and Raspberry Pi irrigation control
• Greenhouse humidity monitoring
• Indoor plant care automation
• Agricultural soil moisture detection
• Hydroponic system monitoring
• DIY automated gardening projects
• Weather station soil sensors
• Plant health monitoring systems
• IoT smart farming applications
• Educational electronics projects

How to Use

1. Connect the module to your microcontroller (3.3V or 5V power supply)
2. Insert the moisture sensor probe into the soil near your plant roots
3. Adjust the onboard potentiometer to set your desired moisture threshold
4. Read the digital output (D0) for simple dry/wet detection, or read the analog output for precise moisture level measurements using an ADC
5. Use the readings to trigger watering systems or monitor soil conditions

Compatible With

• Arduino (Uno, Nano, Mega, etc.)
• Raspberry Pi
• ESP8266 and ESP32
• STM32 microcontrollers
• Any microcontroller with ADC and 3.3V-5V logic

What’s Included

• 1x Soil Moisture Anticorrosion Sensor Module with LM393 Amplifier

Why Choose This Soil Moisture Sensor?

This sensor module offers the perfect balance of accuracy, durability, and ease of use for soil moisture monitoring. The adjustable threshold feature allows you to customize detection levels for different plant types, while the dual output options provide flexibility for both simple and advanced applications. The anticorrosion probe ensures long-lasting performance, making it ideal for continuous monitoring in automated watering systems.

Keep your plants healthy with smart soil moisture monitoring using this reliable sensor module!

Note: Images are for representation only. The actual product may vary slightly in appearance.