Waveshare-3-In-One-GPS-GPRS-GSM-QuadBand-SIMCom-Phone-Shield-SIM908-Development-Board-Quad-Band-850M900M1800M1

Overview

Phone Shield SIM908 is an Arduino shield based on the Quad-band GSM/GPRS module SIM908.

SIM908 Features

General

• Quad-band 850/900/18001900MHz
• GPRS multi-slot class 10
• GPRS mobile station class B?
• Compliant to GSM phase 2/2+
  • Class 4 (2 W @ 850/900 MHz)
  • Class 1 (1 W @ 1800/1900 MHz)
• Control via AT commands (GSM 07.07, 07.05 and SIMCom enhanced AT Commands)
• SIM application toolkit
• Supply voltage range :
  • GPRS: 3.2 ~ 4.8 V
  • GPS: 3.0 ~ 4.5V
• Operation temperature : -40 ¡ãC to +85 ¡ãC

SMS

• Point-to-point MO and MT
• SMS cell broadcast
• Text and PDU mode

Audio

• Tricodec
  • Half rate (HR)
  • Full rate (FR)
  • Enhanced Full rate (EFR)
• Hands-free operation
• Echo cancellation

GPRS

• GPRS class 8/10: max. 85.6 kbps (downlink)
• PBCCH support
• Coding schemes CS 1, 2, 3, 4
• PPP-stack

CSD

• CSD up to 14.4 kbps
• USSD
• Non transparent mode

GPS

• Receiver type
  • 42-channel
  • GPS L1 C/A code
  • High-performance STE engine
• Sensitivity
  • Tracking: -160 dBm
  • Cold starts : -143 dBm
• Time-To-First-Fix
  • Cold starts :?30s (typ.)
  • Hot starts : 1s (typ.)
• Accuracy
  • Horizontal position : <2.5m CEP
• Power consumption (GSM engine in idle mode)
  • Acquisition : 77mA
  • Tracking : 76mA