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A few scripts for testing the SIM7000E cellular module

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sim7000-tools

A few scripts for testing the SIM7000E cellular module.

Installation

  • Install python3

  • Install pyserial package i.e. pip3 install pyserial

  • Set the port and baud rate variable near the start of sim7000.py.

Usage

  • Change to the directory were the sim7000.py file lives.

  • Run the script with a command option.

    • i.e. python3 sim7000.py ping
  • Use --reboot option to reboot before running the command (resets connections etc., gives you a clean run)

    • i.e. python3 sim7000.py ping --reboot

Commands

  • python3 sim7000.py ping

    • Check we can ping google
  • python3 sim7000.py ntp

    • Get the time from an NTP server
  • python3 sim7000.py http1

    • Simple HTTP GET using HTTPREAD
  • python3 sim7000.py http2

    • Simple HTTP GET using SHREQ
  • python3 sim7000.py mqtt-nossl

    • Simple mqtt pub (no-encryption)to test.mosquitto.org
    • Use another mqtt tool (such as mosquitto_sub) to sub to the same topic and see if it is appearing.
  • python3 sim7000.py check-certs

    • Check if the 3 certs (defined by variables at near the top of the script) are present on the device.
    • It will report the size in bytes if it is present, or an error if it isn't there.
    • Doesn't seem to be a list files function on the sim7000 :-(.
  • python3 sim7000.py certs-delete

    • Delete the 3 certs (defined by variables at near the top of the script) from the device.
  • python3 sim7000.py certs-load

    • Load the 3 certs (defined by variables at near the top of the script) from the folder (specified by variable) to the correct location on the device.
  • python3 sim7000.py mqtt-cacert

    • Use the ca cert to make a encrypted connection to test.mosquitto.org. Not working
  • python3 sim7000.py mqtt-bothcerts

    • Use the 3 certs to make a encrypted connection to test.mosquitto.org and authenticate using client cert and key.

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