30-08-2014, 04:26 PM
In this project, devices like fan, bulb, etc., are controlled using GSM Module and controlling device is ATmega8A. Arduino platform is given to ATmega8A. Arduino is a open source electronics prototyping platform based on flexible, easy-to-use hardware and software. It’s an open-source physical computing platform based on a microcontroller board, and a development environment for writing software for the board.Using GSM Module , we can make devices ON/OFF with just a simple SMS.
Arduino is a open source electronics prototyping platform based on flexible, easy-to-use hardware and software. It’s an open-source physical computing platform based on a microcontroller board, and a development environment for writing software for the board.In simple words,Arduino is a small microcontroller board with a USB plug to connect to your computer and a number of connection sockets that can be wired up to external electronics,such as motors,relays,light sensors,laser diodes,loudspeakers,microphones, etc. They can either be powered through the USB connection from the computer or from a 9V battery.They can be controlled from the computer or programmed by the computer and then disconnected and allowed to work independently.The name “Arduino” is reserved by the originalmakers. However, clone Arduino designs oftenhave the letters “duino” on the end of their name,for example, Freeduino or DFRduino.The software for programming your Arduino iseasy to use and also freely available for Windows,Mac, and LINUX computers at no cost.Microcontroller can be described as a computer embedded on a rather small circuit board.To describe the function of a microcontroller more precisely,it is a single chip that can perform various calculations and tasks,and send/receive signals from other devices via the available pins.Precisely what tasks andcommunication with the world it does, is what is governed by what instructions we give tothe Microcontroller. It is this job of telling the chip what to do, is what we refer to as programming on it.However, the uC by itself, cannot accomplish much; it needs several externalinputs: power, for one; a steady clock signal, for another. Also, the job of programming ithas to be accomplished by an external circuit. So typically, auC is used along with a circuitwhich provides these things to it; this combination is called a microcontroller board.The Arduino Uno that you have recieved, is one such microcontroller board. The actual microcontroller at its heart is the chip called Atmega328. The advantages that Arduino offers over other microcontroller boards are largely in terms of reliability of the circuit hardware as well asthe ease of programming and using it. This GSM Modem can accept any GSM network operator SIM card and act just like a mobile phone with its own unique phone number. Advantage of using this modem will be that you can use its RS232 port to communicate and develop embedded applications. Applications like SMS Control, data transfer, remote control and logging can be developed easily. The modem can either be connected to PC serial port directly or to any microcontroller. It can be used to send and receive SMS or make/receive voice calls. It can also be used in GPRS mode to connect to internet and do many applications for data logging and control. In GPRS mode you can also connect to any remote FTP server and upload files for data logging. This GSM modem is a highly flexible plug and play quad band GSM modem for direct and easy integration to RS232 applications. Supports features like Voice, SMS, Data/Fax, GPRS and integrated TCP/IP stack. Applications are SMS based Remote Control & Alerts, Security Applications, Sensor Monitoring, GPRS Mode Remote Data Logging, etc.Features are Highly Reliable for 24x7 operation with Matched Antenna, Status of Modem Indicated by LED, Simple to Use & Low Cost, Quad Band Modem supports all GSM operator SIM card, etc.