State Listener for Home Assistant

(and Pimoroni's Micro Dot pHAT)

A Home Assistent state listener made with Python powered by the Home Asssistent websocket API. Each script contains of two parallel processes:

• Logger: when configured states change value the logger starts outputting these.
• Listener: the handler to listen and write states changes to memory.

Requirements

• An environment able to run python(3) scripts.
• Optional: For the log.phat.py you'll need a Micro Dot pHAT on a Raspberry Pi (zero).

Installation

Install the script on your environment and make sure you've noted you're Home Assistant profile and configuration details: Specify these in the script you're about to run:

# check {host}}:{port}/profile to generate an Auth token
token = HASS_IO_AUTHORIZATION_TOKEN
port = HASS_IO_PORT
host = HASS_IO_HOSTNAME_OR_URL

Provide the states the listener should listen to. These will be added to the logger output.

entities = [
    "sensor.power_tariff",
    "sensor.power_consumption_watt",
    "sensor.gas_consumption",
    ...
]

Install the dependencies if not already on your environment:

$ pip install asyncio && pip3 install asyncws

Optional: in case of using the Micro Dot pHAT, install their library as well:

$ curl https://get.pimoroni.com/microdotphat | bash

Usage

Run logger

# Run logger or pHAT logger 
$ python3 log.py
$ python3 log.phat.py

# Output Logger
Start logger...
Start socket...
writing sensor.power_tariff to cache
writing sensor.gas_consumption to cache
writing sensor.power_consumption_watt to cache
low
6692.597 m3
372 W

Run pHAT logger after boot

Add a startup cronjob to the crontab of your system

# Open de crontab file
$ crontab -e

# Add to bottom:
@reboot sleep 30 && python3 /home/pi/log.phat.py & 2>&1 >> /home/pi/log.phat.log

Contributing

Suggestions are welcome. For major changes, please open an issue first to discuss what you would like to change.

License

MIT