• Aplus messenger? Gsm Receiver?
    is there any hardware(not another GSM modem) out there that can recieve sms from a GSM modem and then power up LED Lights and stuff, in another words with outputs on it? if u dun get what i meant...
  • problem in receiving text serially.
    first of all thanks for replying. Actually i have experience in coding. The problem is i had written code in keil uvision to receive the text serially passed from pc using pointer. i can c text arriving...
  • how to handle 2 sms received at a time in gsm module
    I am using 89s52 microcontroller to interfacing with GSM module 'SIMCOM300'. The logic which i develope is as bellow: 1) 1st i execute all commands i.e AT, AT+CMGF=1, AT+CSMS=0, AT+CPMS="SM", AT...
  • 89S52 not able to receive complete AT Response from SIM900 GSM MOdem
    Hello I have connected SIM 900 (GSM Modem) with 89S52 Controller, via RS232 Communication. If I send AT from controller to Modem , it is replying with AT OK but my controller is just able to receive...
  • Problem with GSM switch and 89c51
    I have to make this project for my school but i can't make it run. I've problems with message extraction and with the interrupt. Please help. This is my code #include <reg51.h> #include <string...