Capacitive Soil Moisture Sensor Module – Corrosion-Resistant Soil Humidity Sensor for Arduino, ESP32 & IoT Projects
Rs. 77.00
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Capacitive Soil Moisture Sensor Module – Corrosion-Resistant Soil Humidity Sensor for Arduino, ESP32 & IoT Projects
Rs. 77.00
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Shipping calculated at checkout.
The Capacitive Soil Moisture Sensor Module is a reliable and corrosion-resistant sensor designed to measure the moisture level present in soil. Unlike traditional resistive soil moisture sensors that use exposed metal probes, this capacitive sensor measures changes in soil capacitance, providing better durability and longer operating life.
The sensor provides an analog output proportional to the moisture level, allowing it to be easily connected to microcontrollers such as Arduino, ESP32, ESP8266, Raspberry Pi, STM32, and other development boards. It is an excellent choice for developing automatic plant watering systems, smart agriculture solutions, greenhouse monitoring systems, and IoT-based irrigation projects.
With its compact PCB design and simple interface, the Capacitive Soil Moisture Sensor is ideal for students, hobbyists, makers, IoT developers, and agricultural automation applications.
🚀 Key Features
- Capacitive soil moisture measurement
- Corrosion-resistant sensing element
- Longer service life compared with exposed resistive probes
- Analog output for continuous moisture monitoring
- Easy to interface with Arduino, ESP32, ESP8266 and STM32
- Low power consumption
- Compact and lightweight design
- Suitable for indoor and outdoor plant monitoring
- Ideal for automated irrigation systems
- Excellent for IoT and smart agriculture applications
📊 Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Capacitive Soil Moisture Sensor |
| Measurement Method | Capacitive |
| Output | Analog |
| Operating Voltage | Typically 3.3V – 5V DC |
| Interface | Analog Output |
| Probe Type | Capacitive PCB Probe |
| Corrosion Resistance | Yes |
| Sensor Material | PCB |
| Application | Soil Moisture / Humidity Measurement |
| Compatible Platforms | Arduino, ESP32, ESP8266, STM32, Raspberry Pi* |
*An ADC interface is required for platforms without a suitable analog input.
📦 Package Includes
- 1 × Capacitive Soil Moisture Sensor Module
💡 Recommended Applications
- Automatic plant watering systems
- Smart irrigation
- Smart agriculture
- Greenhouse monitoring
- Indoor plant monitoring
- IoT gardening systems
- Agricultural automation
- Soil moisture data logging
- Arduino gardening projects
- ESP32 IoT projects
- ESP8266 smart farming projects
- Water-saving irrigation systems
- Plant health monitoring
🌱 How It Works
The sensor uses capacitive sensing technology to detect changes in the dielectric properties of the soil caused by variations in moisture content. As the soil becomes wetter or drier, the sensor's capacitance changes, producing a corresponding change in its analog output.
A microcontroller can read this analog signal and use it to determine when watering is required.
For example:
Soil Moisture Sensor → ESP32/Arduino ADC → Moisture Calculation → Relay/Pump Control
This makes it easy to build an automatic plant irrigation system that activates a water pump when the soil becomes sufficiently dry.
🌟 Why Choose a Capacitive Soil Moisture Sensor?
- Better durability than traditional resistive probes
- Reduced corrosion-related degradation
- Continuous analog moisture measurement
- Simple three-wire connection on common versions
- Easy integration with popular development boards
- Ideal for long-term plant and agricultural monitoring
- Excellent choice for IoT-based irrigation systems