8051 interfacing with gprs modem thanks for taking intereset in my issue i did one project with gsm modem interfacing with 8051 microcontroller i successfully completed send and receive information through sms but the issue is the time lag sms is not that fast so i thought of switching form gsm to gprs connectivity.
In gsm module interfacing with pic microcontroller article i have discussed rxd and txd pins of gsm module and pic microcontroller should be connected with each other in reverse mannerbecause transmitted data of pic microcontroller receive to gsm module and similary tranmissted data from gsm txd go to rxd receive pin of pic microcontroller this is a wired communication to send data from one.
Your question about interface an 8051 to a modem in order to send and receive sms is far from trivial in fact you leave a lot of facts out, which makes it virtually impossible to answer, facts such as what particular chip based on an 8051 are you planing on using, what brand/model of mobile are we. Gsm interfacing with 8051 instead of using pc, we can use microcontrollers to interact with gsm module and lcd to get the response from gsm module so we are going to interface gsm with a 8051 microcontroller (at89s52) it’s very easy to interface gsm with 8051, we just need to send at commands from microcontroller and receive response from gsm and display it on lcd.
This article describes how gsm modem interfacing with 8051 microcontroller gsm modem interfacing with 8051 microcontroller nowadays, many projects like car security system, home automation, remote controlled industrial machines are controlled by an sms using gsm modem. Rx pin of the 8051 is connected to tx pin of the gsm module and tx pin of the 8051 is connected to the rx pin of the gsm module the lcd module is involved in this project to give an indication message when the sms is sent.
Send sms using gsm module and pic microcontroller: this article explains how to send sms using gsm module and pic microcontroller what is at commands and their use to send and receive smsi have already posted a article on gsm module interfacing with pic microcontrolleri suggest you to go through that article before proceeding in this articleso that you may get an idea about gsm module. Sorry for the incomplete details i am able to send the at commands to gsm modem from hyper terminal of pc and modem is responding properly but i'm not able to send at commands from 8051 microcontroller to modem.
For our project of connecting a gsm modem or module to arduino and hence send and receive sms using arduino – its always good to choose an arduino compatible gsm module – that is a gsm module with ttl output provisions. Thread 8582: i'm able to send at commands to gsm modem,but i am not able interface my 8051 to gsm modelcan i get sample inerfacing code for 8051 micro controller. Re: code for gsm modem interfacing to 8051 soham g i am trying to control the operation through the mobile wirelessly through sms and nt through the hyper terminal.
The circuit of interfacing gsm to at89c51 microcontroller mainly consists of gsm modem and 8051 family microcontroller gsm has rs232 interface for serial communication in between the gsm module and the microcontroller max232 ic is connected.