[shelly] Shelly Plus Smoke update period

[matmai]

Expected Behavior

After initial setup the channel of the smoke sensors should stay in online state as all the other channels of battery operated shelly devices do.

Current Behavior

I have several Shelly Plus Smoke devices (FW 1.4.4) added to openHAB 4.2.2. After a day the thing status changes from ONLINE to COMMUNICATION_ERROR. It is interesting that the device#heartBeat channel is still updated with each wakeup of the shelly while the sensors#lastUpdate channel stays the same if the thing has changed to offline.

The problem seems to be that the devices only wakeup around every 25 hours (between 87500 and 87800 sec). One device is waking up around each 83700 sec and is staying online as supposed.

Possible Solution

Probably increasing the sleepPeriod for the device watchdog could help.
Anything I can change within the shelly config or openHAB to let the smoke sensors stay constantly online?

Steps to Reproduce (for Bugs)

• Enable the channel of the shelly smoke plus device
• Wait a day until the channel changes to offline

Your Environment

• Version used: openHAB 4.2.2 and add-on versions 4.2.2
• Operating System and version: Raspbian Bookworm

[openhab-bot]

This issue has been mentioned on openHAB Community. There might be relevant details there:

https://community.openhab.org/t/shelly-plus-smoke-communication-error/160106/6