Abstract:
Indian agriculture is dependent on the monsoons which is not a reliable
source of water. Therefore there is a need for an irrigation system in the
country which can provide water to the farms according to their soil types.
This paper presents the prototype design of microcontroller based automatic
irrigation system which will allow irrigation to take place in zones where
watering is required, there by supplying required quantity of water depending
on the soil moisture indicated by different plants. Thus different plants grown
can be supplied with single source of water automatically, which requires no
human control.
The use of pesticides
sprinkling system in this project makes an added advantage to the irrigation
system by sprinkling the pesticide mixture in required proportion to the plants
once in a minute. Here, switches are used for giving an input ratio by which
the pesticide and water are supplied to plants.
This project uses AT89S52 Microcontroller as
its controller.
This
project uses regulated 5v, 750mA power supply. 7805, a three terminal voltage
regulator is used for voltage regulation. Bridge type full wave rectifier is
used to rectify the ac output of secondary of 230/12v step down transformer.
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