4PCS Capacitive Soil Moisture Sensor Module Corrosion Resistant Soil Humidity Detection Module for Arduino Moisture Detection
Operating Voltage: DC 3.3-5.5V;Output Voltage: DC 0-3.0V;Interface: PH2.54-3P.It is possible to read the amount of real-time moisture present in the soil (for judging whether the soil is wet or dry) by linking the analog output (AOUT) of the module to one analog input (A0) of the Arduino.This sensor is compatible with 3-pin interface, which can be directly connected to the Gravity I/O expansion shield. Pin: Analog signal output, GND, VCCThe principle of capacitive sensing is used to detect soil
- High-precision sensing output for advanced robotic control
- Dual-voltage logic compatibility supporting 3.3V and 5.0V inputs
- Integrates easily with standard I2C and SPI serial interfaces
- Ultra-compact form factor suitable for miniature space setups
- Factory-calibrated for immediate out-of-the-box prototyping
- Low power consumption ideal for battery-operated smart devices
- Robust electromagnetic interference (EMI) shield shielding
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(855) I-BUY-ROBO (855) 428-9762Operating Voltage: DC 3.3-5.5V;Output Voltage: DC 0-3.0V;Interface: PH2.54-3P.
It is possible to read the amount of real-time moisture present in the soil (for judging whether the soil is wet or dry) by linking the analog output (AOUT) of the module to one analog input (A0) of the Arduino.
This sensor is compatible with 3-pin interface, which can be directly connected to the Gravity I/O expansion shield. Pin: Analog signal output, GND, VCC
The principle of capacitive sensing is used to detect soil moisture. It is made of a corrosion resistant material. It avoids the problem of being easily corroded and greatly prolongs its working life.
Appligations: Through simple design, can automatic watering the vegetable garden, garden, control the flower pot soil moisture, all of electronic competitions and for Arduino Raspberry pi design etc.






Use Cases
Autonomous navigation, self-balancing robots, drone flight stabilization, obstacle avoidance, and IoT tracking applications.
Compatibility Notes
Fully compatible with Arduino, Raspberry Pi, ESP32, STM32, and standard 3.3V/5V microcontroller logic levels.
Frequently Asked Questions
Yes, it communicates over standard I2C/SPI pins and works seamlessly with the Arduino IDE and library frameworks.
It is designed to work safely on both 3.3V and 5V power rails, offering wide logic-level compatibility.
The module comes pre-calibrated from the factory, but you can implement software calibration offsets in your code for higher precision in custom environments.
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