This GPRS/ GSM/ GPS Shield based on the SIMCom SIM808 all-in-one cellular phone module. Compares to the SIM900 Shield, the SIM808 Shield integrates the GPS function, which makes it more convenient and cost-effective for mobile applications such as cargo monitoring, that you can add location-tracking, voice, text, SMS, and data to your project.

This board is intended to use with Arduino/ Maduino boards, can not be used separately. 
●  Quad-band 850/ 900/ 1800/ 1900MHz - connect onto any global GSM network with any 2G SIM (in the USA, T-Mobile is suggested)
●  Fully-integrated GPS
●  Make and receive voice calls using a headset or an external 32Ω speaker + electret microphone
●  Send and receive SMS message
●  AT command interface with "auto baud" detection
●  Send and receive GPRS data (TCP/IP, HTTP, etc.)
●  GPS L1 C/A code
●  22 tracking /66 acquisition channels
●  Tracking: -165 dBm
●  Cold starts: -148 dBm
●  Time-To-First-Fix: Cold starts-32s (typ.),Hot starts-1s (typ.), Warm starts-5s (typ.)
●  Accuracy: approx 2.5 meters
●  Dimensions: 68mm*53mm*23mm

Package List:
●  1 x GPRS GSM GPS Shield (SIMCOM- SIM808)
●  1 x GPRS GSM antenna
●  1 x GPS antenna

●  Schematic
●  SIM800 Series_AT Command Manual
●  SIM800 Series_GNSS_Application Note
●  SIM808 GPRS GSM GPS user's manual
●  Demo Code
●  Wiki
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