After removing the 2nd channel from my rollershutter switch items, the widget on my BasicUI screen does not have a position value after restarting the system, only a dash “-” is displayed. Example shown…
This condition persists, even after the SONOFF DUal/Tasmota sends the periodic state/status update MQTT which contains the current shutter position. ONLY by moving the shutter does this “dash” get replaced with a numeric value.
Because you removed your ‘position’ channel,your Item now has no feedback from the device as to actual position. So your Item doesn’t get a state.
If you issue an openHAB command, OH’s autoupdate feature will have a guess at the likely outcome and update the Item’s state with this ‘prediction’. Then there’s something to see, of course.
But you no longer have a channel listening to that.
That is exactly why I added that 2nd channel…but doing so was the direct cause of the MQTT error of receiving a value NOT between 0 and 100 (the original issue of prior topic).
This seems like a catch-22. Note however that once the shutters are used the 1st time, the position reporting is accurate and updates as expected.
