if it is gsm module use uart to interface with AVR or use level
translater like max232(5v) or max3232(3.3v) in between GSM RS232 modem
and AVR. isue AT commands for communication.
--- In interfacing@yahoogroups.com, "ofog2000" <ofog2000@...> wrote:
>
> can any one help me for connect gsm modem and avr?
>