How to make Soil Moisure water to your plant

This is one to make soil moisure to my plant water. You can look at your plant by phone apps such as Blynk to control water to your plant.

The below is the diagram of this circuits of project . 

Here is code:https://drive.google.com/file/d/1gljPNKZgV99frfHxAZcAO78O0An1HWBg/view?usp=sharing