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WSAL17954 – SIM7600E LTE Cat-1 HAT/en

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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

Technical guide for the Waveshare SIM7600E LTE Cat-1 HAT: specifications, power on/off, flight mode, AT commands, and debugging via UART/USB.

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Technical overview

  • Supports LTE Cat-1 with up to 10 Mbps download and 5 Mbps upload.
  • Also provides 3G (HSPA+) and 2G (GSM/GPRS/EDGE) plus GNSS positioning (GPS/BeiDou/GLONASS/GALILEO/QZSS).
  • Features a 40-pin GPIO expansion header for connecting host boards such as Arduino or Jetson Nano.
  • Onboard CP2102 USB-to-UART converter enables serial debugging and AT command testing.
  • SIM card slot supports 1.8 V and 3 V SIM cards; optional TF card slot for storing files and SMS data.
  • Connections include USB, UART, audio out (for calls), LTE main and diversity antenna connectors, and a GNSS antenna connector.
  • Operating voltage is selectable via jumper between 3.3 V and 5 V; default with Raspberry Pi is 3.3 V.
  • Newer versions add a PWRKEY button, flight-mode jumper, and forced firmware flash pads.
  • LED indicators show network status; the NET LED blinks once per second during normal operation.
  • Ships with online resources and sample demos for Raspberry Pi, Jetson Nano, Arduino, and STM32.

Commands and examples – verify before use:  

AT+CGPSNMEAPORTCFG=3
AT+CGPSNMEA=197119
AT+CGPSINFOCFG=10,31
AT+CGPSAUTO=1
AT+CRESET

Notes and version constraints

  • The SIM7600x series does not support MMS.
  • The reset pin was not broken out because it only resets a subset of functions (equivalent to AT+CRESET).
  • Forced firmware flashing requires shorting two solder pads – use only when normal flashing fails.
  • Changing the IO level from 3.3 V to 5 V requires soldering the corresponding pads; not recommended for non-professionals.
  • Flight mode is disabled by default on newer versions; enable it by setting the jumper between Flight and D4.
  • Automatic power-on means the device cannot be manually powered off; reduce power consumption by turning off RF or entering flight mode.
  • If the GPS NMEA port outputs no data, restart the module after sending the listed AT commands.

Source and revision record

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