Freematics Forum

You need to build and upload your own firmware to the device. The code of the firmware is named telelogger in the github. The easiest way is using Freematics Builder with gives you a GUI to configure the build on which you can change the server URL and port. If you are comfortable to use Visual Stud...

Basically no OBD PIDs can be accessed when ignition is off. So if you look at sample code (datalogger or telelogger), you will see how ignition off is handled.

It is as simple as [PID]:[data].

If the GPS data is broadcasted on CAN bus, it is possible.

Great. I will fix the code in github according to your finding. Thanks.

That's not normal. Have you tried with another SIM card?

Try increasing RECV_BUF_SIZE in FreematicsNetwork.h.

Thanks for sharing this. I will include this code snippet in the code base if you don't mind.

From what we observed, a local sim card is more quickly allowed to register into the network than a roaming hologram sim card. But once it is allowed in, it gets connected fairly quickly every time. This seems to vary among operators though.

Tello uses B2/B4/B12 which are all supported by SIM7600A-H.
Is the APN correct? If unsure, try leaving APN blank (default from network).