Quite a few “open/close” physical devices can be hacked to expose two contacts of the main “open/close” switch which can then be used as a “on/off”. I have a spare garage door tilt sensor whose contacts I might use in this way; but also Monoprice Z-Wave devices have such terminals (under $30?).
And there’s a new Fibraro Binary ($50-ish) with 4 such terminals, I think.
More details pending… in short, these can be wired up to any type of switch, including one that SmartThings already hacked for fun … the Staples Easy Button ™!
