The proposed project aims to develop a low-cost smart agriculture irrigation system to reduce manual monitoring of agricultural fields and provide real-time field information through GSM technology. The system monitors important agricultural parameters and displays the sensor readings on an LCD. It also sends SMS notifications to the farmer's mobile phone whenever necessary. The controlling device of the system is a PIC microcontroller. Temperature sensor, DHT11 humidity sensor, water level sensor, and soil moisture sensor are interfaced with the microcontroller to monitor field conditions. Based on the received sensor values, the microcontroller performs appropriate operations, including automatic motor ON/OFF control. Whenever the soil moisture level falls below the predefined threshold, an SMS alert is sent to the farmer through the GSM module. The farmer can switch ON the irrigation motor by sending an SMS command to the controller. The motor is automatically switched OFF when the required water level is reached. It is also switched OFF when the motor temperature exceeds the predefined limit or when the humidity value exceeds the specified threshold. All the monitored parameters and motor status are displayed on the LCD. The microcontroller is programmed using Embedded C language with a PIC C compiler. This system helps farmers monitor agricultural field conditions remotely, control irrigation through SMS, reduce manual effort, and improve water management.        

Main Objectives:

1. To monitor soil moisture, temperature, humidity, and water level automatically.
2. To control the irrigation motor using a PIC microcontroller.
3. To send field condition alerts to farmers through GSM.
4. To provide SMS-based remote motor control.
5. To automatically switch OFF the motor under predefined safety conditions.
6. To display sensor readings and motor status on an LCD.

           

Components:

1. Regulated Power Supply.
2. PIC Microcontroller.
3. Soil moisture sensor.
4. Temperature sensor.
5. DHT11 sensor.
6. Water level sensor.
7. Water motor.
8. LCD display.
9. Reset button.
10. Crystal oscillator.
11. LED indicators.

         

Software’s used:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

         

Regulated Power Supply:        

                 

Block Diagram:            

             

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