WSAL20049 – A7670E Cat-1 HAT/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The A7670E Cat-1 HAT is an LTE module with a 40-pin GPIO connector for the Raspberry Pi series. It supports LTE-TDD, LTE-FDD, GSM, GPRS and EDGE with up to 10 Mbps downlink and 5 Mbps uplink.

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WSAL20049 – A7670E LTE Cat-1 HAT for Raspberry Pi, Multi Band, 2G GSM / GPRS, LBS, for Europe, Southeast Asia, West Asia, Africa, China, South Korea

Technical overview

Supported protocols: TCP/IP, HTTP(s), MQTT(s), FTP(s) and SSL.
LBS positioning via the mobile network; SMS types supported: MT, MO, CB, Text, PDU.
Onboard USB interface for testing AT commands and network communication.
3.5 mm audio jack for audio input/output, phone calls and TTS playback.
Operating voltage configurable to 3.3 V or 5 V via jumper; power supply is 5 V.
Dimensions: 65 × 30.5 mm; operating temperature -30 °C to 80 °C, storage temperature -45 °C to 90 °C.
SIM card slot supports 1.8 V/3 V SIM cards.
Two LEDs for monitoring operational status.

Commands and examples – verify before use:

sudo raspi-config
sudo reboot
sudo apt-get install minicom
sudo ls -l /dev/serial0
sudo minicom -D /dev/ttyS0
sudo ls /dev/ttyUSB*
sudo minicom -D /dev/ttyUSB1
AT+DIALMODE=0
AT$MYCONFIG="usbnetmode",0
ifconfig
sudo dhclient -v usb0
sudo ping -I usb0 www.google.com
sudo route add -net 0.0.0.0 usb0
AT+DIALMODE=1

Notes and version constraints

Exact pinouts and jumper settings (area B, 3V3→PWR) must be verified before setup.
Port names may vary by system (e.g., ttyS0, ttyUSB1, ttyTHS1); check the actual port using ls.
AT command compatibility with the SIM7600 series is only 'mostly compatible'; individual commands should be tested.
FTP examples require a self-hosted FTP server.
If the network is unavailable, try configuring DNS via route add.
TTS supports Chinese and English texts; other languages are not specified.

Source and revision record

A7670E Cat-1 HAT - Waveshare Wiki
Source revision: 68778
Captured: 2026-09-02T03:08:54+00:00
SHA-256: cb80dcf6d6f09a869b6f3de47acc1131e7897fb34445d983398fe82b64eedd16