SENDING & RECEIVING SMS VIA

GSM TECHNOLOGY

By -Vivek Dhiman (06403)Nipun Mahajan (06413)Ketav Sharma (06448)

MENTORS :Dr. (Mrs.) Rajeevan ChandelMrs. Meenakshi Sood

ABSTRACT

The project involves the design of a embedded system that can be used to send & receive SMS through GSM technology. Usage of this technology accomplishes communication between the embedded system and mobile phone.

The vital aspect involves the usage of a GSM modem by means of AT (Attention) commands.

MOTIVATION & OBJECTIVE

To utilize our skills towards design and development of applications related to GSM technology

GSM is the latest technique used for communication between the mobile and the embedded devices.

The objective of the project is to send and receive SMS by means of a GSM Modem

• Global System for Mobile Popular standard for mobile

phones 2G mobile phone systemOperation bands - 900 MHz

or 1800 MHz Key feature – Subscriber

Identity Module (SIM)

WHY GSM TECHNOLOGY ?

SMS SENDING

GSM

MODEM

KEYPAD

MICROCONTROLLER

GSM MODEM

ANTENNA

SMS RECEIVING

GSM MODEM

MICROCONTROLLER

LCD DISPLAY

ANTENNA

COMPONENTS USED

•Microcontroller - ATMEGA 16L•Crystal Oscillator - 8 MHz •RS 232 - Serial Communication•GSM Modem - Communication•LCD - Display

SOFTWARES USED Kiel C & AVR Studio 4

RS 232A "Space" (logic 0) between +3 and +25 Volts.A "Mark" (Logic 1) between -3 and -25 Volts. Open circuit voltage – less then 25v

MICROCONTROLLER

• ATMEGA 16L

16K Bytes of In-System Self programmable Flash program memory

512 Bytes EEPROM1K Byte Internal SRAM32 Programmable I/O Lines

GSM MODEM

• FEATURESTri band GSM ModemBuilt in TCP/IP ProtocolAT Command BasedDesigned for GPRS, SMS ,Voice Applications.

INTERFACES OF GSM MODEM

• RS-232 with D type 9 pin connector• GSM/GPRS antenna • Power supply AC / DC power adapter Input ac voltage – 230v Output dc voltage – 12v• Flag opening type SIM holder

FUTURE ENHANCEMENT

  Addition of different designs in text message.Sending of 5-10 messages at a particular time.

REFERENCES

[1] M. AL-Rousan, A. R. AI-Ali and K. Darwish, “GSM-Based Mobile Tele-Monitoring and Management System for Inter-Cities Public Transportations,” IEEE Int. Conf. on Industrial Technology (ICIT) , 2004, pp. 859-862.

[2] S.Vogioukas,M.Roumeliotis, “A system for basic level network fault management based on GSM short message service”, IEEE international conf on communication, 2001.

[3] M.Sarram, M.Ghasemzadeh & V.Aghaei, “Remote control & overall administration of computer networks using SMS”, ICTTA 2008.

[4] Rashid & Rashid , “8051 microcontroller”, PHI, 2005.[5] Arnaud henry & Labordere vincent jonack, “SMS &

MMS interworking in mobille networks”, Artech House, 2004.