README.md

homebridge-intercom-automation-hat

Homebridge plugin to expose an intercom's doorbell and opener through an Raspberry Pi and Pimoroni Automation (p)Hat

Adapted from / credits to: Luke Hoersten https://github.com/lukehoersten/homekit-door https://medium.com/dirigible/siri-controlled-1970s-intercom-door-ecd7a6b0df31

Using a Raspberry Pi Zero W and Pimoroni Automation pHAT, make a simple circuit-based door lock and door bell intercom into a Siri-controlled HomeKit smart accessory. Siri integration is provided by HomeBridge.

Connecting wires to the automation phat

• Connect the intercom's ground wire to the automation phat ground
• Connect the intercom's door opener (high) to automation phat output one
• Connect the intercom's doorbell wire (high) to automation phat analog one

Installation

If you are new to Homebridge, please first read the Homebridge documentation. Specifically for running on a Raspberry, you will find a tutorial in the homebridge Wiki.

Assure you're using the most up-to-date version of Raspbian

Install Pimoroni automation (p)hat:

curl https://get.pimoroni.com/automationhat | bash

Install homebridge:

sudo npm install -g homebridge

Install homebridge-intercom-automation-hat:

sudo npm install -g homebridge-intercom-automation-hat

When running this plugin using homebride-config-ui you need to set permission to access i2c and gpio: First install homebridge-config-ui-x according to their instructions. Then open a terminal and execute the following two commands and reboot afterwards:

sudo adduser homebridge i2c
sudo adduser homebridge gpio

Configuration

Add the accessory in config.json in your home directory inside .homebridge.

Example configuration:

{
  "platforms":
  [{
      "platform": "IntercomAutomationHAT",
      "name": "Intercom",
      "bellTimeout": "1000",
      "lockTimeout": "1000",
      "voltageLowLimit": "0.03"
  }]
}