Solar Powered Auto Irrigation System


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In the field of agriculture, use of proper method of irrigation is important because the main reason is the lack of rains & scarcity of land reservoir water. The continuous extraction of water from earth is reducing the water level due to which lot of land is coming slowly in the zones of un-irrigated land.

Another very important reason of this is due to unplanned use of water due to which a significant amount of water goes waste. For this purpose; we use this automatic plant irrigation system. The system derives power from?solar energy through photo-voltaic cells. Hence, dependency on erratic commercial power is not required.

In this project we use solar energy which is used to operate the irrigation pump. The circuit comprises of sensor parts built using op-amp IC. Op-amp?s are configured here as a comparator. Two stiff copper wires are inserted in the soil to sense whether the soil is wet or dry.

A microcontroller is used to control the whole system by monitoring the sensors and when sensors sense dry condition of soil, then the microcontroller will send command to relay driver IC the contacts of which are used to switch on the motor and it will switch off the motor when the soil is in wet condition.

The microcontroller does the above job as it receives the signal from the sensors through the output of the comparator, and these signals operate under the control of software which is stored in ROM of the microcontroller. The condition of the pump i.e., ON/OFF is displayed on a 16X2 LCD which is interfaced to the microcontroller.

Further the project can be enhanced by interfacing it with a GSM modem to gain control over the switching operation of the motor.

Hardware Requirements

  • Arduino Microcontroller
  • Op-Amp
  • LCD
  • Solar Panel
  • Relay
  • Motor
  • Voltage Regulator
  • Diodes
  • Capacitors
  • Resistors
  • LED
  • Crystal
  • Transistors

Software Requirements

  • Arduino IDE
  • Languages: Embedded C


Q.What is the validity of the course?
Ans: It will be valid till one month from date of registration.
Q. Will the course cover hardware description?
Ans: Yes. It will cover hardware too.
Q. How many times lectures can be watched?
Ans: You can access a video lecture n no. of times during validity of your course.
Q. Will I get the certificate after completion of my course?
Ans: Yes every candidate will be awarded with certificate of training within two weeks after completion.
Q. Can I use this website in my mobile phone?
Ans: Yes but pc mode will be preferable for better understanding.
Q. Can we learn from other user registration id?
Ans: No. because we will trace the IP address of your pc, laptop, mobile if it is found unmatched with the registered id, registration will cancelled automatically and user will debarred from all services including certification.
Q: Will we get software package.
Ans: Yes u will get software package before proceeding to tutorials with how to install notes.

Block Diagram