I'm looking for a button device to use as a switch

[christoph_wempe]

I just want to point out that Flic might be an option.

How to integrate flic buttons?

For those of us with an iPhone, this wasn’t an option as there’s no Tasker. A really easy, reliable, and fast way to integrate the Flic buttons was through the Flic app on the phone and creating an “HTTP request” and then using the following: http://:8080/CMD?= HTTP type is type is POST, not GET. So in my configuration, http://192.168.1.10:8080/CMD?BedroomLight=ON And another one for double clicking to make it off. Or just Toggle would be fine too.

There may be a native binding for Flic in the future.
You would need a server with Bluetooth of cause.
And the range might be limited.
But there is already a linux library. You don’t have to use a phone to connect your Flic.