Support messages sent by detection sensor module

[fphammerle]

Hi @jeremiah-k,

I created a draft supporting detection messages (https://meshtastic.org/docs/configuration/module/detection-sensor/)

Block invoking meshtastic_interface.sendData(…) is untested.
Remaining part tested successfully with meshtasticd v2.3.13.83f5ba0.

Could you review my changes? Thank you!

Solves second part of #75

[jeremiah-k]

Very cool! I like it!

To give users more control over what data types are relayed to Matrix, I think it would be good to add a configuration option (defaulting to false) in config.yaml.

People already have to opt in to send meshnet data to Matrix with broadcast_enabled: true otherwise it only sends one way Matrix -> Meshtastic. (It's not the best name for that option, but that's what it does.)

New config variable:

detection_sensor_enabled = relay_config["meshtastic"].get("detection_sensor", False)

And something like this in on_meshtastic_message() that would prevent sending detection sensor messages if disabled:

if decoded.get("portnum") == "DETECTION_SENSOR_APP" and not detection_sensor_enabled:
    logger.debug("Detection sensor packet received, but detection sensor processing is disabled.")
    return

So to enable the feature in config.yaml it would look like:

meshtastic:
    detection_sensor: true

What are your thoughts on that?

[fphammerle]

Sounds great, thank you! I'll integrate the requested changes.

[fphammerle]

I added the "detection_sensor" setting. Could you do another review?

[jeremiah-k]

lgtm!

Thank you, I appreciate the contribution!

[fphammerle]

Thank you!