SRI MANAKULA VINAYAGAR ENGINEERING COLLEGE

MADAGADIPET, PUDUCHERRY

Department Of

Electronics and Communication Engineering

A mini-project report on

WIRELESS WEATHER STATION MONITORING SYSTEM USING GSM

Submitted by

II year ECE students

Alamelu Priyadharshini. S

NanthiniKumari. N

ABSTRACT Our project Weather monitoring stations are essential to detect abnormal conditions of climate. This project is

designed to monitor various parameters like humidity, rain fall, temperature, light intensity, etc. This system uses

PIC 16F877A microcontroller. Inbuilt ADC in PIC is used to convert the analog data of various sensors into

digital data. This system is interfaced with a GSM. Whenever an abnormal condition occurs, this system senses

the hazard and sends caution message to mobile numbers. The user can log the data at any time by sending a data

request SMS. Using this system, the operator / supervisor can monitor the weather station from anywhere in the

world as it works on GSM network.

This project uses PIC 16F877A as its brain. Eight channel ADC receives analog data from various sensors

connected to it and converts the data into digital data. This digital data will be sensed by the Microcontroller core

and the system continuously monitors the data condition. The GSM modem is connected to microcontroller.

Whenever an SMS is sent to the GSM modem, the GSM modem receives the data and sends to microcontroller.

After receiving the signal from the microcontroller it processes the data and sends the read data to the

preprogrammed mobile number through GSM modem.

A key pad is connected to MCU to enter the mobile numbers of the operators. At any time the mobile numbers

can be changed. This programmed mobile numbers will not be lost even in power failure conditions, as these are

stored in EEPROM. 16X 2 LCD is provided for user interface. The data will be displayed on this LCD. This

project uses regulated 5V, 500mA power supply. 7805 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.

Main part of the Project

Message displayed in LCD

PIC MICROCONTROLLER

IMPORTANCE OF WEATHER MONITORING SYSTEM

The day-to-day scientific development which enhances the comprehensive and consolidated

commitment by means of this sophisticated feature of advanced field involved in activity of

agriculture, fishing etc and also for various industries like salt industry, food processing, food

storage, medical field etc.

Weather monitoring system is very important to country like India because we passing

heterogeneous geographical setup (mountain, desert, islands, forest) which often changes

parameter of this land. Using such a system, say Weather monitoring system can make this

achievement.

APPLICATION & ADVANTAGES Weather can be monitored from a remote

Detection and Temperature condition will help us to avoid

damage

It is used as a weather reporting system

It is widely used in Industries

No need of Smart phone and Android phone to Know the Weather

Weather can be monitored within a simple text message

Automatically Send caution message when abnormal condition occurs

CONCLUSIONS

Thus we have designed a Wireless Weather Station Monitoring System Using GSM

This work presents the design and development of a wireless weather station monitoring for

remote location using a PIC16F877 microcontroller.

This data has been analyzed in order to evaluate the Light, Rain, Temperature and the

Humidity. Humidity, Temperature, Rain and light intensity is sensed through respective sensor.

Measured values are displayed on LCD. The transmission of these data to a mobile phone is

achieved using a GSM network and in particular the short message service (SMS) based on GSM

module.

The transmission of the data by a GSM network reduces considerably the cost of the system

management. The data logger offers good performance at a low cost, compared with commercial

data-acquisition systems.