What it is
The ShillehTek Soil Moisture Sensor Module (5-Pin Dupont Cable) for Arduino and Raspberry Pi measures relative soil moisture (dry vs wet) for simple smart watering and plant monitoring builds. It’s commonly used with Arduino, ESP32, and Raspberry Pi projects to trigger actions like turning on a pump, sending an alert, or logging soil moisture over time.
Pins
Pin names and order can vary by module revision. Refer to the silkscreen labels on the board/module and the listing photos for the exact pinout before wiring to an Arduino, ESP32, or Raspberry Pi GPIO.
Technical Specifications
| Item | Details |
|---|---|
| Sensor type | Soil moisture detection sensor module (relative moisture) |
| What it measures | Dry vs wet soil level (relative; calibration recommended) |
| Common platforms | Arduino, ESP32, Raspberry Pi style builds |
| Cable included | 5-pin Dupont wire (for breadboard/prototyping) |
| Pin labels / pinout | See listing photos and board silkscreen |
Frequently Asked Questions
How do I connect this soil moisture sensor to an Arduino or ESP32?
Use the module’s silkscreen pin labels and the listing photos to identify power/ground and signal pins, then connect the signal to an analog-capable input (or the appropriate input your code expects). The included 5-pin Dupont cable helps with quick breadboard wiring.
Can I use this soil moisture sensor with Raspberry Pi GPIO?
It’s commonly used in Raspberry Pi style builds, but the exact wiring depends on the module revision and your interface method. Confirm the pinout on the board and use a suitable approach for reading the sensor signal in your project.
Does this sensor measure exact moisture percentage?
This module is intended for relative moisture detection (dry vs wet). For meaningful readings in your setup, calibrate using known “dry” and “wet” conditions and map the values in your code.
What can I build with a soil moisture sensor module?
Common projects include smart watering triggers (turn a pump on/off), low-moisture alerts, and logging soil moisture over time with Arduino, ESP32, or Raspberry Pi.