First, the ATmega48V only has one UART. This is connected to the GPS module at 9600, 8N1. The connection to the GSM M-590 module is only 2400 bps, and slow enough for a bitbanged UART.

Further, an optional “call – alert” facility is added to the security system, which will initiate a telephone call when push button switch S2 is activated by the user (or by another electronic module) ...

Tempe, Ariz. The MMM6035 power amplifier module is geared toward quad-band GSM handsets operating in the 850, 900, 1800, and 1900 MHz bands. This module comes equipped with on-chip 50-ohm matching and ...

DataLogger DL750 to Include Wireless Connectivity via Telit’s GE865-QUAD GSM/GPRS Module Danlaw DL750 (Photo: Business Wire) Telematics Detroit June 05, 2013 09:00 AM Eastern Daylight Time ...