Introduction - If you have any usage issues, please Google them yourself
ATMEL ATmega
- a GSM Modem or Mobile/Cell-
Phone/Handy (ME) that supports AT-commands
on a serial bus and the SMS PDU-Mode
according to standard GSM 07.05
- connection between serial ports, RS232 V24
level shifter for configuration, output
hardware (LEDs, Relais etc.), Inputs
(switches etc.), Power Supply...