Door wire doorbell bell chimes diagram two button voltage wiring transformer chime shows bells second going do rings case using Buzzer raspberry pi circuit connect connecting projects There is a wire going into the doorbell button that shows voltage. and
Connecting a buzzer to the raspberry pi A guide: interfacing buzzer with arduino nano Buzzer arduino piezo fritzing
.
.
A Guide: Interfacing Buzzer with Arduino Nano | ElectroRules
Arduino - Door Sensor - Piezo Buzzer | Arduino Tutorial
There is a wire going into the doorbell button that shows voltage. And