Arduino GSM GPRS GPS SIM908 Module Board RS232 UART Serial Voice Adapter

brand: SainSmart SKU: 20-012-105 Variants ID: 45100800788
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SIM928 module is a high performance industrial GSM/GPRS/GPS module. The interfaces of this development board are rich, perfect functions, especially is suitable for the need to voice/SMS/GPRS/GPS navigation data service of all kinds of fields. SIM928 development board is not only beautiful, but also completed function, rich interface. The module size (not including antenna part) is 77.978 mm * 73.787 mm. The module has mounting holes which are very small, and conducive to install and can be easily applied to all kinds of product design.


Main characteristics
- Quad-band 850/900/1800/1900MHz
- GPRS multi-slot class 10 standard
- GPRS mobile station class B standard
- Meet the GSM phase 2/2 Standard
- Class 4 (2 W @ 850/900 MHz)
- Class 1 (1 W @ 1800/1900MHz)
- AT command control (GSM 07.07, 07.05 and SIMCom enhanced AT command set)
- SIM Application Toolkit
- Support voltage range: GPRS: 3.2 ~ 4.8 V, GPS: 3.0 ~ 4.5V
- Low power consumption
- Size: 30 * 30 * 3.2mm
- Weight: SIM908: 5.2g
- Operating temperature: 40 ° C to 85 ° C


Specifications for SMS via GSM / GPRS
  Point-to-point MO and MT
  SMS cell broadcast
  Text and PDU mode

Specifications for audio
  - Half rate (HR)
  - Full rate (FR)
  - Enhanced Full rate (EFR)
  Hands-free operation
  Echo cancellation
Specifications for data transfer
  GPRS class 8/10: max. 85.6 kbps (downlink)
  PBCCH support
  Coding schemes CS 1, 2, 3, 4
  CSD up to 14.4 kbps
  Non transparent mode
  Integrated TCP/IP stack
AT cellular command interface
Specification for GPS
 Receiver type
  - 42-channel
  - GPS L1 C/A code,
  - High-performance STE engine   

  - Tracking:               -160 dBm
  - Cold starts :           -143 dBm
  - Cold starts:           30s (typ.)
  - Hot starts:               1s (typ.)
  -Horizontal position : <2.5m CEP
  Power consumption (GSM engine in idle mode)
  - Acquisition           77mA
  - Tracking               76mA
  80-pad with SMT type
  Interface to external SIM 3V/ 1.8V
  Dual analog audio interfaces
  SPI interface
  RTC backup
  Charge interface
  A serial interface and a debug interface for  GSM/GPRS
  Debug interface for GPS NMEA information output
  Two separate antenna connectors for GSM/GPRS&GPS

Package list

  • 1x SIM928 development module
  • 2x USB cable
  • 1x Power cord
  • 1x GPS Antenna
  • 1X GSM Antenna