Sending Harmony device commands from SmartThings using a separate Linux bridge device (technical)

[JDRoberts]

The power switch synchronization issue and three alternative solutions are discussed at length in the following project thread.

Although that particular project used IFTTT recipes instead of the smart things/harmony direct integration (because that integration was still in beta at the time), it’s still the same solution. It’s just that instead of using IFTTT recipes to send the activity command, you’ll be using the “harmony trigger” smartapp.

But the logic flow is all the same.

Alexa + SmartThings + IFTTT + Harmony to turn TV on and off by voice (2015 version)

Updated 12 November 2015 after Amazon added “Triggers” to their IFTTT Channel for Alexa As valuable as I personally found this project, and as much as I learned in doing it, as of 12 November 2015 it’s now no longer necessary. Amazon has added verbal triggers to their IFTTT channel. So you can say anything you want to as a trigger to Alexa and use that as the “if” for an IFTTT recipe, and have that trigger anything that has an IFTTT “that” channel. So SmartThings, Philips Hue, Harmony activities, etc. No virtual switches needed, no synch issues. It really is that easy. If you’re new to IFTTT, here’s a good overview: You may still want to use the direct Harmony/SmartThings integration to control certain aspects of TV watching, like limiting your kids to 30 minutes of Net…