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 A guide: interfacing buzzer with arduino nano
Connecting a buzzer to the raspberry pi Buzzer arduino piezo fritzing Buzzer arduino nano interfacing
.
.
Connecting a buzzer to the Raspberry Pi - Connecting a buzzer to the
There is a wire going into the doorbell button that shows voltage. And
Arduino - Door Sensor - Piezo Buzzer | Arduino Tutorial