Development board mikroElektronika smartGM862

SmartGM862 is a development board for Telit GM862 GSM/GPRS module with voltage regulation.

Detailed Description

mikroElektronika smartGM862

The SmartGM862 Board is a full-featured development tool for Telit GM862 GSM/GPRS module.

This board has everything you need to develop your own GSM-GPRS based device. It features voltage regulation, so that there is no need to connect additional power supply circuits. You just have to connect power supply (9-32V DC or 7-23 AC) to the board, place GSM/GPRS module, connect antenna and you are ready to start GSM-GPRS based device development. There is also a DIP switch used to configure connection lines for the desired microcontroller provided on the board. The board can be connected to external circuits or the microcontroller via IDC10 connnector and 2.54mm extension pins. Antenna is placed in Antenna Holder that is also available on the board.

The board supports GM862-GPS, GM862-QUAD-PY and GM862-QUAD Telit GSM/GPRS modules. These modules combine the access to digital communication services in GSM 850, 900, DCS 1800 and PCS1900 MHz networks. GM862 provides many features such as Voice, Circuit Switched Data transfer, Phonebook, SMS, four bands GSM capability, hot removal sensing on board SIM Reader, GPRS Class 10 and battery charger circuitry.

Examples provided with this board will show you how to connect the GM862 module to the microcontroller easily. Each example contains a detailed description of the relevant program including comments.

Features:

  • Tellit GM862 module:
    • Quad-band EGSM 850 / 900 / 1800 / 1900 MHz
    • Control via AT commands according to GSM 07.05, 07.07 and Telit enhancements
    • Supply voltage range: 3.22 – 4.5 V DC (3.8 V DC recommended)
    • Sensitivity:
      • 107 dBm (typ.) @ 850 / 900 MHz
      • 106 dBm (typ.) @ 1800 / 1900 MHz
    • Interfaces
      • 50-pin Molex connector
      • 13 I/O ports maximum
      • Analog audio (balanced and unbalanced)
      • 1 A/D converter, buzzer output
      • ITU-T V.24 serial link through UART:
      • CMOS level
      • Baud rate from 300 to 115,200 bps
      • Autobauding from 2,400 to 57,600 bps
      • 50 Ohm MMCX antenna connector
      • On board SIM card holder, 1.8V / 3V with real-time detection
    • Audio
      • Telephony, emergency call
      • Half rate, full rate, enhanced full rate and adaptive multi rate voice codecs (HR, FR, EFR, AMR)
      • Superior echo cancellation & noise reduction
      • Handset & hands-free operations
      • DTMF
    • GSM supplementary
      • Call forwarding
      • Call barring
      • Call waiting & call hold
      • Advice of charge
      • Calling line identification presentation (CLIP)
      • Calling line identification restriction (CLIR)
      • Unstructured supplementary services mobile originated data (USSD)
      • Closed user group
    • Additional features
      • SIM phonebook
      • Fixed dialing number (FDN)
      • Real-time clock
      • Alarm management
      • Battery management
      • Network LED support
      • IRA character set
      • Jamming detection & report
      • Embedded TCP/IP stack, including TCP, IP, UDP, SMTP and FTP protocols
      • TFMS (Telit Firmware Management Services) Over-the-Air update
  • On-board switching power supply, so that there is no need for additional power supply circuits.
  • GSM Antenna is provided on the board for better signal quality. Ready-to-use examples are provided.

The package contains:

  1. SmartGM862 Board.
  2. MMCX-SMA Cable.
  3. Quad Band GSM Antenna SMA straight male (Cable length: 2m).

Schematic diagram smrtGM862 board

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