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This board based on the latest SIMCOM SIM808 GSM/GPS module, it offers cellular GSM and GPRS data along with GPS technology for satellite navigation.
The board features ultra-low power consumption in sleep mode, giving the project incredibly long standby times. Furthermore there's an onboard battery charging circuit that can be used with LiPo batteries.
The GPS receiver is incredibly sensitive with 22 tracking and 66 acquisition channels, and also supports assisted-GPS (A-GPS) for indoor localisation.
The board is controlled by AT command via UART and supports 3.3V and 5V logical level. It comes with a mini GPS and GSM antenna, however a battery is optional.The board uses the 2G (not 3G or LTE) GSM networks.
GPRS multi-slot class12 connectivity: max. 85.6kbps(down-load/up-load)
GPRS mobile station class B
Controlled by AT Command (3GPP TS 27.007, 27.005 and SIMCOM enhanced AT Commands)
Supports charging control for Li-Ion battery
Supports Real Time Clock
Supply voltage range 3.4V ~ 4.4V
Integrated GPS/CNSS and supports A-GPS
Supports 3.0V to 5.0V logic level
Low power consumption, 1mA in sleep mode
Supports GPS NMEA protocol
Compact size 27mm x 46mm x 7mm
Standard SIM Card
GPRS_Shield library on gitHub