The project is based on irrigation control using microcontroller which is designed to tackle the problems of agricultural sector regarding irrigation system with available water resources. Prolonged periods of dry climatic conditions due to fluctuation in annual precipitation, may appreciably reduce the yield of the cultivation. The expenses in establishing many of these crops and their relative intolerance to drought make an effective irrigation system a necessity for profitable enterprises.

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... isting System: The project irrigation control using AT89S52 is designed to tackle the problems of agricultural sector regarding irrigation system with available water resources. Prolonged periods of dry climatic conditions due to fluctuation in annual precipitation, may appreciably reduce the yield of the cultivation. The expenses in establishing many of these crops and their relative intolerance to drought make an effective irrigation system a necessity for profitable enterprises. In this project we are using AT89S52, Moisture sensor, AC submersible pump. A submersible motor will get switched ON /OFF depending on the soil moisture condition and status of motor can be displayed on 16X2 LCD. Drawback:  There is no wireless communication  No temperature sensor Proposed System: Here we are employing an ATMEGA328 as our controller with moisture and temperature sensors to know about condition of farm without any human interference. Raspberry pi is also used to receive the status of farm through Zigbee. So that owner can have a glance about their farm/garden and take necessary action within short time. A buzzer alert is also given to show the exceeded limit. A 16X2 LCD is also employed for the purpose of display. A submersible motor is arranged to pump the water in the farm during dry condition. The sensor used here is to check the temperature and humidity. The Raspberry Pi is a credit-card-sized single-board computer developed in the UK by the Raspberry Pi Foundation. The Raspberry Pi has a Broadcom BCM2836 system on a chip. It does not include a built-in hard disk or solid-state drive, but Uses an SD card for booting and long-term storage.