Obtaining Quectel EC25-EUX modem connection quality metrics

Hi Forum,

I am trying to find the best way to collect signal strength and other connection quality metrics from the EC25 modem. The modem is controlled using the quectel-CM application and works well. However we are installing many of these modems in a variety of locations and need to be able to check in real time the signal quality.
I have read around the subject and I believe a proxy is the solution. The proxy connects via /dev/cdc-wdm0 and runs a server which allows a connection to a socket. To that end I have tried the quectel-qmi-proxy which does connect, but I have not found any instructions on how to then bring up the LTE network interface and gather the metrics.

Does anyone on here have experience in this area?

To summarise,

  1. How do I obtain signal strength, BER, …, measurements using the QMI interface to the EC25;
  2. Is the quectel-qmi-proxy the correct way to achieve this?

Thank you in advance for any help you can offer.


You can try these two qmi messages.