This Capacitive Soil Moisture Sensor module is a durable and reliable electronic device designed to measure the volumetric water content in soil [citation:8]. Unlike traditional resistive sensors, it uses capacitive sensing technology to detect moisture levels by measuring changes in the soil's dielectric constant, which is directly affected by water content [citation:4][citation:10]. This design is highly resistant to corrosion, ensuring a long service life for garden, agriculture, and smart irrigation projects [citation:2][citation:6][citation:7].
| Parameter | Value |
|---|---|
| Operating Voltage | 3.3V - 5.5V DC [citation:2][citation:5][citation:12] |
| Output Signal | Analog Voltage (0 ~ 3.0V DC) [citation:5][citation:10] |
| Interface | 3-Pin (VCC, GND, AOUT) [citation:8][citation:9] |
| Current | ~5mA [citation:5][citation:8] |
= Key Features =
+Long Service Life Corrosionresistant materials protect the sensor [citation:7][citation:10].
+Easy to Connect Uses a 3pin "Gravity" interface for simple wiring [citation:10][citation:12].
+Versatile Power - Compatible with both 3.3V and 5V microcontrollers [citation:13].
+Qualitative Measurement - Ideal for monitoring relative changes in soil moisture [citation:6].
√ Compatible with Arduino, ESP32, and other 3.3V/5V logic boards.
√ Onboard voltage regulator for stable operation [citation:2][citation:7].