Description: Capacitive Soil Moisture Sensor V1.2

The Capacitive Soil Moisture Sensor V1.2 is a highly reliable, non-corrosive sensor designed to measure the moisture level of soil using capacitive sensing technology. Unlike traditional resistive sensors, this version has no exposed metal parts, which significantly extends its lifespan and performance, especially in wet and humid environments.

It outputs an analog voltage that varies with the soil’s moisture level—lower voltage indicates wetter soil, while higher voltage indicates drier soil. This sensor is compatible with microcontrollers like Arduino, ESP32, and Raspberry Pi, making it ideal for smart gardening, automated irrigation systems, and environmental monitoring projects.

Its compact size and simple 3-pin interface (VCC, GND, AOUT) make it easy to integrate into any DIY or professional electronics project.

 Key Features:

• Capacitive sensing: Measures moisture by detecting changes in the dielectric permittivity of the soil.
• Non-corrosive: No exposed metal probes, making it more durable and long-lasting.
• Analog output: Outputs a variable voltage depending on the moisture level (lower voltage = wetter soil).
• Wide input voltage: Operates typically on 3.3V to 5V (works well with Arduino, ESP32, Raspberry Pi, etc.).
• V1.2: Improved circuit stability and more accurate moisture readings than earlier versions.

 How It Works:

• The sensor has a PCB coated with a protective layer.
• When inserted into the soil, the capacitance between the two conductive layers changes based on the amount of water in the soil.
• This change is converted into an analog voltage signal.

⚙️ Technical Specifications:

 Pinout:

• VCC – Power supply (3.3V–5V)
• GND – Ground
• AOUT – Analog output signal

• Capacitive sensing: Measures moisture by detecting changes in the dielectric permittivity of the soil.
• Non-corrosive: No exposed metal probes, making it more durable and long-lasting.
• Analog output: Outputs a variable voltage depending on the moisture level (lower voltage = wetter soil).
• Wide input voltage: Operates typically on 3.3V to 5V (works well with Arduino, ESP32, Raspberry Pi, etc.).
• V1.2: Improved circuit stability and more accurate moisture readings than earlier versions.