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.