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...
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...
interfacing gsm modem with microcontroller problem

Hi!! I am doing a project based on gsm.Here i need to interface microcontroller at89c52 with gsm modem.I am using a sim300 modem.Main objective is to send sms using gsm by providing AT commands from...
interfacing gsm modem wit 89c52 microcontroller

i'm able to send message using gsm modem with hyperterminal but when using with microcontroller 89c52 the message is not being sent to receivers mobile ...can u please tell about the connections. my...
interfacing gsm modem with microcontroller problem

Hi!! I am doing a project based on gsm.Here i need to interface microcontroller at89c52 with gsm modem.I am using a sim300 modem.Main objective is to send sms using gsm by providing AT commands from...