Keyestudio Soil Humidity Sensor for Arduino

This analogue soil humidity sensor is designed to measure moisture levels in soil, making it an ideal choice for automated gardening projects. It is perfect for students, hobbyists, and makers looking to build smart irrigation systems with an Arduino controller. The sensor helps prevent plants from withering by accurately detecting when they require water.

Smart garden automation

This sensor detects soil moisture levels by outputting an analogue value that decreases when the soil is dry and increases when wet. It allows you to build automatic watering devices that monitor your plants' needs while you are away.

Simple three-pin interface

The board features a clear three-pin layout for straightforward wiring. It includes dedicated pins for signal output, ground, and VCC power supply connections.

Durable dual-probe design

The dual-pronged probe is designed to be inserted directly into the soil for real-time moisture readings. This makes it easy to position within potted plants, greenhouses, or garden beds.

Flexible power and output

Operating on a power supply voltage of either 3.3V or 5V, the sensor has a low working current of 20mA or less. The analogue output voltage ranges from 0V up to 2.3V when the sensor is totally immersed in water.

Safe packaging and resources

The sensor is shipped in a sealed electrostatic bag to protect the sensitive electronics. Beginners and educators can easily get started using the online Arduino software WIKI page tutorial.