Capacitive – Hamtech Electronics Technologies https://hamtechtechnologies.com Sun, 30 Nov 2025 15:45:56 +0000 en-US hourly 1 https://wordpress.org/?v=7.0.2 https://hamtechtechnologies.com/wp-content/uploads/2025/11/h-100x100.webp Capacitive – Hamtech Electronics Technologies https://hamtechtechnologies.com 32 32 Capacitive Soil Moisture Sensor https://hamtechtechnologies.com/product/capacitive-soil-moisture-sensor/ https://hamtechtechnologies.com/product/capacitive-soil-moisture-sensor/#respond Thu, 20 Nov 2025 19:51:42 +0000 https://hamtechtechnologies.com/index.php/product/capacitive-soil-moisture-sensor/ Capacitive Soil Moisture Sensor measures the volumetric water content in soil and provides a reliable analog or digital output for smart gardening and irrigation projects.]]> The Capacitive Soil Moisture Sensor is a non-corrosive, capacitive-based sensor that detects soil moisture by measuring changes in capacitance caused by water content. Unlike resistive sensors, it is highly durable and resistant to rust or corrosion, making it ideal for long-term outdoor use. It provides an analog voltage proportional to soil moisture and can also output a digital HIGH/LOW signal via an onboard comparator with adjustable threshold. The sensor is easy to interface with microcontrollers like Arduino, ESP32, and Raspberry Pi for automated watering systems, smart gardening, and environmental monitoring projects.

Key Features

  • Capacitive sensing for accurate and corrosion-free soil moisture measurement

  • Analog and digital outputs

  • Adjustable threshold for digital output

  • Works with microcontrollers: Arduino, ESP32, Raspberry Pi

  • Long-lasting and suitable for outdoor use

Specifications

Feature Details
Operating Voltage 3.3–5V DC
Output Analog (0–VCC), Digital (adjustable threshold)
Detection Range 0–100% soil moisture
Current Consumption ≤10 mA
Dimensions 70 × 20 × 5 mm
Material PCB sensor with protective coating

Applications

  • Smart irrigation and automated watering systems

  • Indoor and outdoor gardening

  • Hydroponics and soil monitoring

  • Environmental sensing for agriculture

  • DIY IoT plant care projects

Compatible Boards / Circuits

  • Arduino (Uno, Mega, Nano)

  • ESP32 / ESP8266

  • Raspberry Pi (via ADC for analog output)

  • Can interface with relays, pumps, LEDs, and alarms for automation

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