Thanks. I’d made the changes in ST IDE and didn’t push it to Webcore so Webcore still saw the device as a switch and not a sensor. Doh. Your post triggered me to go there to check. That did it. The Contact Sensor is now switching between Open and Closed which I believe is all we want.
Testing the Routine in Alexa causes it to speak the desired phrase, but I can’t seem to get Alexa to pay attention to it.
My Routine there says:
Enabled
WHEN
Contact Sensor opens
Set volume to 10
Say “Test”
Set volume to 5
So it turns out that ANY changes made to the simulated sensor REQUIRE (as far as I can tell) that you got into the Alexa app, Skill and Disable the SmartThings skill, re-Enable it and then re-log in and re-Discover all the devices. It shouldn’t be that complicated, but perhaps down the line it’ll get easier.