I’m looking to build a door lock sensor which will be based on a microswitch buried into the rebate on the door, that switches when the deadbolt is extended into the cavity.
The question is, how to get the state of that microswitch reported back to SmartThings? one option I looked at already is the Fibaro FGK-101 which is a z wave contact sensor with an extra set of screw terminals inside allowing a NC or NO external switch to be wired in…almost perfect, but if the extra terminals are used the regular contact sensor does not function, which seems a waste.
I also wondered if this could be done with a Raspberry Pi, since I have an unused one, and that could perhaps become a multiple sensor used as a doorbell, lock sensor (as above), motion detector, mail delivery sensor, door camera, BLE beacon etc.
What do you think - any better suggestions out there?
edit: I should also add that I am a UK user
edit: I am marking this solved as I am returning my SmartThings kit due to lack of useable functions at this time in the UK. I may be back !