I came across this thread as I wanted to implement a similar scenario. Broadlink cannot be added to ST (at least ST returns a “No device found” when searching for Broadlink or IHG).
I had that device already integrated in Alexa, so here is what I ended up doing:
- create a virtual momentary button in Smart things (see below)
- create a routine in Alexa to “press” the power button thru the Broadlink device
With this in place, I can “connect” the virtual momentary button to any scenario in ST
Link to the “how to” add a virtual switch in ST: [ST Edge] Virtual Things Edge Driver
HTH