Abstract: In nature, energy cannot be created or destroyed but its form can be changed. A sun tracking solar panel is used to harvest the natural resource into power storing device. The harvested power is used for smart irrigation, where the integrated soil moisture sensor senses the amount of water and depending upon the requirement it actuates the water pump. The fertilizer dispensing system dispenses the fertilizers on time basis. The irrigation field is protected from the intruders using PIR sensor. This system works in two modes automatic and manual mode, where in automatic mode the system works depending upon the sensor readings, whereas in manual mode a wireless interface is used between the user and the system. The system works depending upon the command given through wireless interface system in manual mode. The whole system is designed using ATMEGA2560.

Keywords: RFID, IR and PIR Sensors.