HSBNE Digital Keylocker

So this build log is to document the development of a keylocker that authenticates whoever is accessing it and then reports which keys are taken.

Right now, the plan is to take a case like this:

Add an electric fail-secure lock like this:

And then using a Sonoff SV and a daughterboard for it to handle the inputs track the insertion/removal of keys much like @ian.kerr.redmond’s current implementation.

I’ve put forward budget for the next meeting to support the development for this, because we’re finding ourselves needing it more for things we can’t easily put a door controller on (Gas cage, etc).