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Express post shipping available (product is on backorder)

The 32u4 with A9G GPRS/ GSM/ GPS Board is based on Mega32u4 and A9 GPRS/ GSM/ GPS module. It can be used to make a call, send text message and get GPS positioning. Also it has one analog interface, one IIC interface and two digital interfaces, which you can connect to other expansion modules. It is very easy for you to make a GPS tracker by using this board, and it’s convenient to use AT firmware and use several AT commands that can be configures successful.


  • ATMEGA32U4 + A9G
  • Three kinds of interfaces
  • Equipped with 3.5mm headphone jack
  • Standby average current is low, only 3mA or less
  • Support the GSM/ GPRS/ GPS Quad-band, including 850, 900, 1800, 1900MHz
  • Support China Mobile and China Unicom’s 2G GSM network worldwide
  • GPRS Class 10
  • Support GPS positioning
  • Support voice calls
  • Support SMS text messaging
  • Support GPRS data service, the maximum download data rate is 85.6Kbs, upload data rate is 42.8Kbs
  • Support standard GSM07.07, 07.05 AT commands and Ai-Thinker extended commands
  • Support two serial ports, a serial port to download an AT command port
  • Support for Global Positioning System
  • Horizontal positioning accuracy of less than 2.5m
  • AT command supports the standard AT and TCP / IP command interface
  • Support digital audio and analog audio support for HR, FR, EFR, AMR speech coding
  • Support ROHS, FCC, CE, CTA certification
  • Compatible with GSM Phase 2/2 +: Class 4 (2W @ 850/900 MHz) Class 1 (1W @ 1800 / 1900MHz)
  • SIM Application Toolkit
  • PBCCH support
  • Support USSD


  • Working voltage: 3.3-5v
  • Operating temperature: -30 ℃ to + 80 ℃
  • The size of A9G: 19.2 x 18.8 x 3mm
  • Quad-band: 850/ 900/ 1800/ 1900MHz
  • GPRS multi-slot: 12.1 to 12 can be configured
  • GPRS mobile station: Class B
  • Current consumption: 1.3mA @ DRX = 5; 1.2mA @ DRX = 9
  • AT command control: Standard GSM07.07, 07.05 AT commands and Ai-Thinker extended commands
  • GPRS Class 10: Up 85.6 kbps (upstream) & 42.8Kbps (downlink)
  • Dynamic Conditions Altitude <18,000 meters (60,000 feet)
  • Speed
  • Coding scheme: CS 1, 2, 3, 4
  • Support CSD: Up 14.4 kbps
  • Stack: PPP / TCP / UDP / HTTP / FTP / SMTP / MUX


  • Make sure your SIM card is locked.
  • This product is supplied as is, without an insulated housing. In high humidity weather, pay special attention to ESD precautions.
  • It just supports baud rate: 115200 bps

Package list

  • 32u4 with A9G GPRS/ GSM/ GPS Board X 1

Wiki & External links

User manual (wiki link)

The 32u4 with A9G GPRS GSM GPS-V1.1 appears in the following collections: