Moisture Sensor

This simple moisture sensor can be used to detect soil moisture, when soil water, the output of the analog value sensor will decrease, and vice versa will increase. Use this sensor to make an automatic irrigation device. When you are not at home or after a long time, you may feel that your plant is already thirsty. To prevent fogging of plants, to know what is caused by water. With an Arduino controller to make your plant more convenient, the garden is more intelligent. The surface of the sensor is metallized to extend the time of its use. Insert it into the soil and then use the AD converter to read it. With it, the plant will remind you: I want to drink water, please give me some water to drink.