Cooper aspire Z wave switches have a built-in “panic” mode which uses the Z wave “alarm” commandset and does this really well. See the following discussion thread (this is a clickable link)
Hi. Trying to implement Panic Mode for Cooper Aspire RF9540-N in-wall dimmer switch. This would also be relevant to other Cooper switches which have this capability. The device implements Controlled Command Class Alarm http://products.z-wavealliance.org/products/797/embedpics The only info I could find as to the implementation states To set a device into Panic Mode (On-Off flashing at time intervals determined in the device configuration), send a Command_Class_Alarm, ALARM_REPORT command to the device with an Alarm Type of 1 and a value of 255. To turn off panic mode, send the same command as above with an Alarm Type of 1 and a value of 0. See very bottom of http://www.cooperindustries.com/content/dam/public/wiringdevices/products/documents/technical_specifications/advancedtechinfo_…
Other people can discuss the issues if you want to combine a smart bulb and a smart switch, but it’s going to get complicated.
Hue bulbs on a Hue bridge have a very nice and simple blink option which you can get to through IFTTT or through webcore. But again, hue bulbs plus Smart Switch can get complicated.
Looking for a wall Switch to replace the one I have atm. What i need it to do is -Turn on Off -Be integrated with Smarthings and Alexa (No wifi if possible) -If it mathers be compatible with Hue Lights
If you like smart switches and you are buying new ones, I would definitely look at the Coopers. It’s a nice feature on that switch and there are community members who have already written the custom code that will be required. (See above.)
For any other Z wave switch, again, look to see if it supports the “alarm” command set, that’s what will do this.
Most zigbee bulbs can do this, the trick is figuring how to get the command to them to do it. @Sticks18 can say more on that. But again, soon as you go to a smart bulb you open up that whole “what switch am I my going to use?” Issue.
While you can try to do it with any Switch or bulb via webcore sending multiple commands, I think the user experience for a very fast flash is going to be much rougher than if you have a switch or bulb that can accept a single alarm command.