A7682E GSM/GPRS 4G Module

Printed circuit board (45x50 mm) carrying the SIMCom A7682E GSM/GPRS 4G cellular module, the antenna socket and the SIM holder.
A7682E GSM/GPRS 4G Module - Image 1
A7682E GSM/GPRS 4G Module - Image 3
A7682E GSM/GPRS 4G Module - Image 4

SKU 8100-TDGGSM_A7682EEAN 8219671081511Item type: Assembled

Description

Printed circuit board measuring 45×50 mm: it carries the SIMCom A7682E GSM/4G cellular module, the antenna socket and the SIM holder.

It has two pin strips for the connections to the remote-control base board: a 3-pin one and a 16-pin one. The first handles the digital supply (positive and negative) and the power-on control line (PWR), while the second connects every signal and communication line to and from the GSM module.

The SIMCom A7682E GSM/4G module can be interfaced with both Arduino and Raspberry Pi. Either device can be used to control the module and manage the communications.

The module is supplied with a whip-style GSM antenna and a connection cable.
Wiring diagram of the A7682E module with Arduino UNO
To test the A7682E 4G module we wrote a sample Arduino sketch, available for download at the bottom of the page, which answers every incoming call automatically and lets you end the call (hang up) with the button wired to pin D5. Note that the GSM module communication lines work at the supply voltage, i.e. about 4V; for that reason, and to allow for tolerances, a level shifter between the GSM module and Arduino may be needed for reliable communication.
A7682E wiring diagram with Arduino
Technical features
  • GSM/4G module: A7682E
Documentation and useful links

Technical details

Board size / weight 51 x 45 mm / 17 grams
GSM/4G module A7682E
Frequency bands LTE-FDD B1/B3/B5/B7/B8/B20/GSM/GPRS/EDGE 900/1800 MHz
Power supply 3.4V ~ 4.2V
Typ 3.8V
Operating temperature -40℃ ~ +85℃
Size 45x50mm
Weight 1.9 grams
LTE Cat 1 uplink up to 5Mbps / downlink up to 10Mbps
EDGE uplink/downlink up to 236.8Kbps
GPRS uplink/downlink up to 85.6Kbps

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