I'm considering to setup a simple wifi controlled door entry system. Currently i have a door which can be opened with a key, or you can be buzzed in via the intercom.
I'd like to include a switch to release the latch that's activated by pressing a button on a mobile app.
It could get more sophisticated, but that would be a start to cover the hardware side.
I'd need to install a wifi-connected unit that can trigger a 12V switch.
Any suggestions / ideas how to start?
Maybe something from here: http://netio.davideickhoff.de/en/