https://www.youtube.com/watch?v=l-fcfGwepog

Now, electrifying that would be neat!

I used it for testing smart meters in Norway, so we did not need to run to the lab to trigger events. The best part is that the whole menu is interactive by just one physical button, a great job for a Bluetooth button pusher + Python.

It is also capacitive so it work on the phone screen, and YubiKeys (?)

I wonder if one could design a similar solution without requiring a bridge. Although of course given the power consumption adding WiFi on the actuators might not be a great idea.