Freematics Forum

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).

1. Try keeping device searching for a longer time (first time use of a new SIM card may take longer).
2. Try powering device from OBD instead of USB.