Automatic Smart Plant Watering Kit
Page 7
System Operation Overview
After uploading the complementary program into the controller (Arduino Leonardo)
integrated in the Smart Pump Board and interconnect all the components you are
ready to power the kit.
Once power is connected, the controller will initialize the display, and it will read
information from the Soil Humidity Sensors and determine the moisture content in
the soil for each of the plants. If the moisture content in the soil of any of the plants is
less than 20% (you can reset by yourself), the controller will initiate the process to
water the corresponding plants.
The steps in the watering process are:
a. The controller triggers the relay controlling the power to the water pump.
This energizes the water pump by sending 12volts DC from the power supply
to the water pump.
b. The water pump will take water from the source into the input valve and
sends it with a gentle pressure to the output valve.
c. The output valve from the water valve goes into the input valve of the five-way
water pipe and goes through the output valves that are connected to the
four-way valve.
d. The controller also opens the corresponding output in the four-way valve
corresponding to the sensors reporting the low soil moisture content. In this
way the plants that need watering will get the water.
e. The controller will keep watering the plants until it detects that the moisture
content in the soil gets to 20%.
f. When the moisture content gets to the desired level, the controller will stop
the watering process by sending a signal to the proper relays.
g. The controller will resume the monitoring process.
