Abstract:
This paper presents the application of
“Automatic Microcontroller Based Drip Irrigation
System Using PID Controller”. A Proportional
Integral and Derivative (PID) control algorithm is
used for the control of almost all loops in the
process industries, and is also the basis for many
advanced control algorithms and strategies.In the
field of agriculture, use of proper method of
irrigation is important and it is well known that
drip irrigation is very economical and efficient. In
the conventional drip irrigation system, the farmer
has to continuously monitor the soil moisture
conditions in favor of growth of crops. In this
system, moisture sensors are used to measure the
soil moisture conditions of the field in real time.
The moisture values from the sensors are sensed
to the Arduino microcontroller and thus the
current moisture are compared with predefined
valuesAccording to the moistures value, required
amount of water is supplied to the crops.The
sensed moisture values and motor speed control
(PWM) values will be displayed in the liquid
crystal display (LCD).The reason of using
Arduino is an open-source electronic prototyping
platform based on flexible easy to use hardware
and software. This system will focus on designing
PID control the desired speed and drive with
PWM function of Arduino to the DC motor pump.
