If you need to know how to connect a Pushbutton and a Led to the RING see the image below.
If you press PULSANTE (the Ring APP) your phone advise you and you have the possibility to open the door (again, via Ring APP).
In our case you will see the LED ON for 2/3 seconds.
We test this solution to using che A cable and an external power supply (ALIM) of 12Vcc.
Take care to the name of A cable wiring (A1, A5 and A6).
We bought the RING during an Amazon discount period at 45$.