David PattersonI have successfully built a proof-of-concept using Feather ESP8266s (I already had them laying around).
Two bread boards on my desk, one with three buttons.
Push a button and both systems play the same sound file. :-)
Proof of Concept
A project log for IoT Doorbell System
A doorbell system that supports multiple doorbell buttons and many annunciators using Feathers and FeatherWings
Discussions
Become a Hackaday.io Member
Create an account to leave a comment. Already have an account? Log In.