• Controller not able to collect response from GSM Modem
    Hello all, I am trying to send Command from 89S52 Controller to SIM900 GSM Modem when i am sending command as "AT" in response my Receive buffer is able to receive all bytes and code is working...
  • gsm module sim900 HTTP connection
    hello, dear I have a gsm module sim 900 and I want to connect it with HTTP protocol and need to send a massage to a website and I use embedded C program. and also I have AT89S52 micro-controller so...
  • how to control gsm modem using microcontroller 89s52
    hi...i m using 89s52 microcontroller to control the gsm modem.i m using simcom 300 gsm modem with RS232 port. My problem is that i don't knw how to control the gsm modem using microcontroller....although...
  • SIM900 With ARM
    Dear friends, I have a project where I need to read a string from a URL using SIM900 module and ARM microcontroller. Looking into the manuals I found out that I need to use HTTP commands. Everything...
  • Problem with interfacing 8051 and sim900
    I am interfacing 8051 and sim900 for my project purpose. I am able to send message from my sim900 when interfaced with PC in hyperterminal using AT Commands. After programming using Keil in 8051 board...