Is there a way to configure a protocol option per device?

I have a problem using 'old' and 'new' Sinotrack ST-901 trackers in one Traccar instance:

• 'old' ST-901 tracker - uses the h02 protocol and only sends text-based messages (starting with *HQ).
• 'new' ST-901 tracker - uses the h02 protocol and sends text-based (starting with *HQ) and binary (starting with 24) messages.

There are a lot of topics in the Traccar forum that state that the 'new' ST-901 trackers need to have h02.ack set to true to stop the endless stream of binary messages. But with h02.ack to true the 'old' ST-901 trackers do not send messages according to their interval settings anymore, but a message every couple of minutes.

So I'm a bit stuck:

• set h02.ack to false - 'old' ST-901 trackers work fine, 'new' ST-901 trackers keep sending binary messages at an alarming rate.
• set h02.ack to true - 'old' ST-901 trackers are almost irresponsive, 'new' ST-901 trackers send messages at an acceptable rate (but still won't go to sleep, but that is another matter)

To use both 'old' and 'new' ST-901 trackers in a Traccar instance, the h02.ack

• should be configurable per device -or-
• should be a protocol setting separately for either text-based or binary messages

Is there already a way to configure h02.ack (or any other protocol option) per device or should this be a feature request?

You can just copy the ho2 protocol to for instance ho2b and then recompile the server to run that ho2b protocol on a new port where you for instance connect your new st-901 with the preferred setting.

That crossed my mind too:

• a h02legacy protocol - only text-based messages
• a h02 protocol - as it is now, text-based and binary messages

But maybe I overlooked a way of doing the same without having to recompile Traccar.
And I can't imagine that I'm the only one that has this kind of issue, the ST-901 tracker is already around for a long time.

Ideally we should make it possible to configure per device or per group.

So I should ask for a feature 'configure protocol option per device or per group'. How / where do I do that?

You should use GitHub for feature requests.