Automation to Toggle magic home led lights with harmony activity?

[rontalley]

In the ST App:
You can use the Alexa Virtual Switch that doubles as a Contact Sensor that can trigger Routines in the Alexa App. (link below)

Use webCoRE to create the appropriate rule.

If Harmony Activity changes to on
And
Time is between x and y
Then with Virtual Switch
Turn on

If Harmony Activity changes to off
Then with Virtual Switch
Turn off

In the Alexa App:
If Contact Sensor (this is the Virtual Switch that shows up as a Contact Sensor) opens
Then turn on LED strip

If Contact Sensor closes
Then turn off LED strip

[Release] Virtual Alexa Switch/Button

I put together some device handlers that take advantage of Alexa’s support for contact sensors: Alexa now supports motion and contact sensors connected to a SmartThings Hub. Play a welcome message when the door opens, turn on a connected light when motion is detected, or ask, “Alexa, is the back door open?” To get started, connect a Works with SmartThings contact or motion sensor to the SmartThings Hub, following the manufacturer’s instructions, then link the SmartThings skill using the Alexa app. These handlers can be triggered by SmartThings routines, while also showing up in Alexa as contact sensors. Switch: Button (momentary switch):