Keyestudio Arduino humidity sensor pudy

The simple Keyestudio Arduino soil moisture sensor is designed to detect soil moisture. If there is insufficient water in the soil, the analogue sensor output will decrease, otherwise it will increase. If you use a sensor to make an automatic watering device, it can detect whether your plants need water. By using the sensor with the Arduino controller, your plants will be watered regularly. The Soil Moisture Sensor Module is not as complicated as you might think, and if you need to detect soil moisture in your project, this will be the best choice. The sensor is set up with two probes inserted into the soil, then as the current passes through the soil, the sensor obtains a resistance value by reading the changes in current between the two probes and converts this resistance value to moisture content. The higher the moisture content (less resistance), the higher the conductivity of the soil. Insert it into the soil and then use the AD converter to load it. With the help of this sensor, the plant can remind you: I need water.

Supply voltage:
3.3 V or 5 V

Workflow:
20 mA

Output Voltage:
0-2.3 V (when the sensor is fully immersed in water, voltage will be 2.3 V), the higher the humidity, the higher the output voltage

Interface Definition:
Pin1 - signal
Pin2 - GND
Pin3 - VCC