Adapting a Video Doorbell to a Digital Song Chime

Long story short, Best Buy told me I could not install the Simplisafe Doorbell with a song melody door chime. Reading hundreds of posts said it can't be done. Simplisafe said can't be done but supplied a kit anyway. The connector kit is for a bar striker chime with a buzzing sound problem. A relay solution presented online also failed to provide extended power for a whole song to play. Challenge accepted! My simple solution is to run 2 independant power supplies and a relay to simulate a button push. Installing the diode included with the chime at the relay as if that was a button. The second diode is to quiet whatever choppy signal the Simplisafe connector is putting out so the relay coil behaves. I have no electonic background so please comment on why this works if you know. I mostly use the force. Also, I don't know if this works with other video doorbells with similar issues.

Step 1: Buy Parts

Need:
•Video doorbell
•16V 10VA Transformer
•16 song digital door chime
•Diode ( 2 ) comes with chime
•12VAC DPDT relay
•Relay base for above
•Simplisafe Chime Connector SSDBCC3
•Bell wire

Step 2: Install Components and Wire Chime

Have transformer(s) installed. Mount relay somewhere between transformers. Install diodes across coil and n/o and n/c contacts on the switched output side. Wire chime transformer to relay input. Wire relay n/o to "F" on chime terminals. Wire chime terminal "T" back to relay. If you have a back door stadard bell button wired to "R", you will need a 3rd diode at the button.

Step 3: Wire Video Doorbell and Chime Connector

Mount doorbell. Clip the included metal terminals on the connector and prep to bare 1/4" of wire. Install bare wire at relay coil terminals, with the diode. Wire doorbell to Connector, Connector to doorbell transformer, and back to doorbell.

Step 4: Chime Connector Kit

This gizmo provided by Simplisafe SSDBCC3 reduces line voltage from 19.6V to .003V at rest and then a clipped signal about 18v for about 13 seconds. Long enough to trigger the relay but since a modified wave, can't power the doorbell directly. Low enough that the relay won't trigger until the "button" is pressed.

Step 5: SPDT OR DPDT Relay?

You can use a single throw, double pole relay. I chose a double throw so I can run a light bulb in the basement on the other circuit when the doorbell is pressed. It's a switch so the possibilities are endless. You could trigger a sensor to start recording on a dvr or start a dog barking recording in different rooms. Have fun!

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