Doorbell mod

Doorbell Automation Kit

A device that makes a standard doorbell into a smart doorbell that can connect to Home Assistant.

What does it do?

This device has 6 screw terminals, these are for the 8V AC power, the doorbell, and the chime.

After flashing the ESP with the provided firmware it wil be able to connect to Home Assistant using the ESPHome integration. This will then expose a few different sensors:

• Button status (on/off)
• Last ringed (timestamp)
• Doorbell muted (on/off)
• Ring doorbell (switch)

In order to toggle mute mode you must press the button on the device twice fast and then it will turn red (mute) or green (unmute). If you want a custom tune you must edit the then: part of the script:.

Why did I make it?

I made this device because our doorbell is pretty quiet, which means that if I am in my room I often miss it when the doorbell rings. So whenever I expect the doorbell to ring I need to hold my door open and only have one earbud in so I can actually hear the doorbell. I found this very impractical and so I decided that the solution would be to make my doorbell smart. This way I could just use my smart speaker cranked to the max volume to alert me and even send out notifications to my phone with an attached image from the security camera.

How to assemble it?

Electronics

The main part of the electronics is the PCB. Assembling it should be pretty easy, since the components are already labled on the silkscreen.

There is one tricky part however, the cheapest way I was able to get the screw terminals and the relay is by getting a module with both soldered on it. So in order to get the components you would first need to disassemble the module.

Case

The case consists of three 3D-printed parts:

• Front piece
• Back piece
• Backplate

The front and back piece fit together and need to be glued. To secure the backplate you need to place heat inserts into the three holes in the case.

Then finally you should place the backplate on the case and put the screws through the backplate and into the inserts.

Software

[!IMPORTANT] You must first change all the CHANGE_ME entries in the doorbell.yaml file

Installing the software is as easy as going to web.esphome.io, connecting the esp via a USB-cable and then uploading the doorbell.yaml file located inside the firmware folder of this repo.

Then as soon as it is done flashing you should install the device and connect it to power with a USB cable and then it should automatically be discovered inside Home Assistant under Devices & Services.