What is GPRS Module?
This is a GPRS/GSM shield with a Quad-band GSM/GPRS engine works on frequencies EGSM 900MHz/DCS 1800MHz and GSM850 MHz/PCS 1900MHz. It also supports GPS technology for satellite navigation. It's possible for your robot and control system to send messages and use the GSM network.
It is controlled via AT commands(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands). And the design of this shield allows you to drive the GSM & GPS function directly with the computer and the Arduino Board. It includes a high-gain SMD antenna for GPS & GSM.
A6 GPRS/GSM Module Description
A6 Quad-band GPRS/GSM module, is one of the smallest cutting-edge products in the world.It adopts LCC package technology and offers the highest reliability and robustness.Depending on the ultra tiny configuration of 22.8×16.8×2.5mm and easier soldering process, it is capable of being embedded in almost all customer applications.
Featuring an industrial-standard interface, A6 delivers GSM/GPRS performance for SMS, Data and Voice with extremely low power consumption and extended temperature.Extraordinarily compact size and integrated protocols ensure A6 easily meet the requirements of all M2M applications, including VTS, Industrial PDA, Personal Tracking,Wireless POS, Smart Metering and many other M2M applications.
A6 GPRS Module Feature
Quad Band: 850/900/1800/1900 MHz
GPRS Multi-slot Class: 12, 1~12 configurable
GPRS Mobile Station: Class B
Compliant with GSM Phase 2/2+: Class 4(2W @850/900 MHz)
Class 1(1W @1800/1900 MHz)
Supply Voltage Range :3.3~4.6 V 4.0V nominal
Low Power Consumption:0.9mA @DRX=5
Operation Temperature: -40 °C ~ +85 °C
Control via AT commands (GSM 07.07 ,07.05 andother Ai-thinker enhanced AT Commands)
Specifications for Data
GPRS Class 10:Max. 85.6 kbps uplink & 42.8Kbps downlink
Coding Schemes :CS 1, 2, 3, 4
CSD: Up to 14.4 kbps
Protocols:PPP, TCP,UDP, FTP,HTTP, MUX
Specifications for SMS
Point-to-point MO and MT
SMS Cell Broadcast
Text and PDU Mode
Specifications for Voice
Speech Codec Mode: Half Rate (HR)
Full Rate (FR)
Enhanced Full Rate (EFR)
Adaptive Multi-Rate (AMR)
Echo Arithmetic :Echo Cancellation
UART: 2 interfaces
Analog Audio Channel: 2 Embedded Class-AB amplifier