8051 Gsm Interfacing

Topics: Mobile phone, GSM, Text messaging Pages: 3 (756 words) Published: June 18, 2013
8051 HOW-TO GUIDE

Interfacing GSM with 8051

Contents at a Glance
8051 Primer Board ...........................................................3 GSM (Global System for Mobile Communication) .............3 Interfacing GSM ...............................................................4 Interfacing GSM with 8051...............................................6 Pin Assignment with 8051 ................................................6 Circuit Diagram to Interface GSM with 8051 .....................7 Source Code ....................................................................7 C Program to send a message from 8051 ..........................8 Testing the GSM with 8051 ............................................ 10 General Information ...................................................... 12

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8051 Primer Board The 8051 Primer board is specifically designed to help students to master the required skills in the area of embedded systems. The kit is designed in such way that all the possible features of the microcontroller will be easily used by the students. The kit supports in system programming (ISP) which is done through serial port. NXP’s 8051 (89V51RD2), 8051 Primer Kit is proposed to smooth the progress of developing and debugging of various designs encompassing of High speed 8-bit Microcontrollers. GSM (Global System for Mobile Communication) GSM is a digital mobile telephony system. GSM digitizes and compresses data, then sends it down a channel with two other streams of user data, each in its own time slot. It operates at either the 900 MHz or 1800 MHz frequency band. Join the Technical Community Today! http://www.pantechsolutions.net

Interfacing GSM Fig. 1 shows how to interface the GSM with microcontroller. The GSM module is communicate the microcontroller with mobile phones through UART. To communicate over UART or USART, we just need three basic signals which are namely,...
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