Mega32U4 with A7 GSM GPRS GPS Module

Elecrow Mega32U4 with A7 GSM GPRS GPS Module A6 A6C
DIY Kit Newest Development Board Integrated Circuits GPS GSM Antenna

Схема32u4 with A7 GPRS GSM GPS v1.0

The new 32U4 with A7 GSM/GPRS/GPS Board is based on mega32U4 and A7 GSM/GPRS/GPS module. Compare to 32u4 with A6 GPRS GSM Board, it adds a GPS function,it also can call and send text message even via GPRS to upload data to server. At the same time it leads to an analog interface, an IIC interface and 2 digital interface. which you can connect to other module more easily.
Remote control and data acquisition will be more convenient.It is worth mentioning that this module can be powered by battery, and comes with a battery charging circuit, some IOT projects will make it take a leading role.
Add three GPS commands as follows:
AT+GPS=1 :OPEN GPS function
AT+GPSRD=1 : Get GPS information
AT+GPS=0: Close GPS function


32U4 combine with A7 module
Multiple interfaces
3.7V Battery power supply
GSM/GPRS/GSM function
Support the GSM / GPRS four bands, including 850,900,1800,1900MHZ
Support China Mobile and China Unicom’s 2G GSM network worldwide
GPRS Class 10
Support GPS and AGPS
Support ROHS, FCC, CE, CTA certification

Operating temperature -30 ℃ to + 80 ℃
Operating Voltage 3.3V-4.2V
Sensitivity <-105
Standby average current 3ma less
Working Voltage:3.7V
Sizes: 50mm x 35mm
Package list

32u4 with A7 GPRS/GSM/GPS Board x1
GSM antenna x 1
GPS antenna x 1

Wiki & External links

Купить в Aliexpress.

GPS/GPRS/GSM Module V2.0 (DFRobot)

This is a GPS/GPRS/GSM shield from DFRobot. This shield with a Quad-band GSM/GPRS engine works on frequencies EGSM 900MHz/DCS 1800MHz and GSM850 MHz/PCS 1900MHz. It also supports GPS technology for satellite navigation. It’s possible for your robot and control system to send messages and use the GSM network.
It is controlled via AT commands(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands). And the design of this shield allows you to drive the GSM & GPS function directly with the computer and the Arduino Board. It includes a high-gain SMD antenna for GPS & GSM.
This GPS/GPRS/GSM shield uses an embedded SIM548C chip from SIMCom.Featuring an industry-standard interface and GPS function, the combination of both technologies allows goods, vehicles and people to be tracked seamlessly at any location and anytime with signal coverage.
  • Power supply: 6-12v
  • Low power consumption (100mA@7v – GSM mode)
  • 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 @ 1800/1900MHz)
  • Control via AT commands(GSM07.07 ,07.05 and SIMCOM enhanced AT Commands)
  • Support GPS technology for satellite navigation
  • Embeded high-gain SMD antennas for GPS & GSM
  • Directly support 4*4 button pad
  • USB/Arduino control switch
  • Programmable switch for Arduino
  • Buzzer for call notification
  • LED indicators for power supply, network states and working modes
  • Switches:
    • S1 — Programming mode / Communication mode
    • S2 — Controlling interface: USB / Arduino
    • S3 — Power supply for GPS: ON / OFF
  • Interfaces:
    • Embedded SIM card holder
    • Speaker & Mic Jack socket
  • Size: 70x55mm
  • Specifications for SMS via GSM / GPRS
    • Point-to-point MO and MT
    • SMS cell broadcast
    • Text and PDU mode
  • Specification for GPS
    • Receiver 20 channels, L1 1575.42 MHz,C/A code 1,023 MHz chip rate
    • Accuracy Position 10m CEP without SA/Velocity 0.1m/s, without SA/Time 1us synchronized to GPS time
    • Date WGS-84
    • Acquisition rate (TTFF defined at 95% offirst position local station)
      • Hot start<1s, average, open sky
      • Warm start<38s, average, open sky
      • Cold start<42s, average, open sky
    • Support AGPS
    • Operating voltage 3.3V DC ±5%
    • Low power consumption about 200mW at 3.3V
    • Protocols:
      • NMEA-0183
      • SiRF binary
      • RTCM SC-104
    • Memory: 4 Mb flash and 1Mb SRAM


TE-SL6087-NV08C – отладочный модуль GLONASS/GSM

Модуль TE-SL6087-NV08C может быть использован для  знакомства с технологиями GSM/GPRS/EDGE/GLONASS/GPS, отработки приемов управления GSM-модулем с помощью AT-команд и для разработки законченных навигационно-связных систем слежения за подвижными объектами. Отладочный модуль TE-SL6087-NV08C позволяет определить текущие координаты, вектор скорости и текущее время по сигналам глобальных навигационных систем GLONASS, GPS, GALILEO, COMPASS, SBAS и передать эти данные через GSM-сеть с помощью технологий GSM(CSD), GPRS/EDGE, SMS.