The +5V supply line (VCC) of the module is linked to the 5V line of the Arduino. GND of the module is the common ... for driving high-current/high voltage loads like water pump motors through its N/C ...

When the sensor detects that the moisture content is already below 30%, it sends a signal to the Arduino, which, in turn, activates a water pump to provide hydration to the plant. As soon as the ...