Automatic plant Watering System

Going away from a while? Need something to babysit your house plants? This box will automatically deliver an adjustable volume of water to four plants (or less) every day, or once every "x" day (up to seven days). A micro controller handles the time tracking and 120AC switching (via a relay). The relay powers a fountain pump which functions as the water delivery system.

The arduino will keep track of time as well as the day of the month. When the alarm is triggered, the Arduino will power a relay. This relay will complete the 120V circuit for a water pump. The pump will deliver water to the plant! It's simple enough, but each sub step has some complexity.