Hello community! I’ve a shared entrance door and I want to create a way to open it without smartphone/smartwatch? Consider that I can’t modify intercom/doorbell (hikvision is the current 
) Do you think is there a solution?
What about the good old key?
sure, that’s why I wrote on home assistant forum 
for this kind of idea
So what can you change/smartify when you are not allowed to change intercom/lock/doorbell?
I’ve already a shelly on the open button, but I cannot improve the intercom. So something external is needed
Does your shelly by luck is based on a esp32 so you could make use of BLE tags?