OpenEPaperLink-HA-Weatherman

Weatherman EPaper display using OpenEPaperLink and the HA Integration. Shows current weather state and temperature, the next four hour forecast, and the next four day forecast. Also shows Moon phase. Based heavily from https://github.com/Madelena/esphome-weatherman-dashboard, of which I have been a contributer, and made my own ESPHome based version (code somewhere?!!).

Home Assistant and a working OpenEpaper setup, with HA Integration - https://github.com/jonasniesner/open_epaper_link_homeassistant

Sensors/Integrations needed:

https://github.com/jonasniesner/open_epaper_link_homeassistant (Install via HACS)
https://www.home-assistant.io/integrations/met - Weather info
https://www.home-assistant.io/integrations/moon - Moon phases
https://www.home-assistant.io/integrations/sun - Sun sensor, help with weather icons if it's clear at night (so you don't see a Sun at night!)

The scripts assume your Met.no weather sensor is called weather.home, your Moon sensor is called sensor.moon_phase. There is a service call to weather.get_forecasts at the top of the HA configuration file to get the hourly weather, which calls this data variable weather_home_hourly. get_forecasts is a different response to get_forecast, so make sure you are on HA version 2023.12 or greater - it will break if you use get_forecast!

Tag size - 1.54", 2.9" and 4.2"

I made a 2.9" weather tag (pictured above) but there is also one made for 4.2" by @svenove:

I've also added a small 1.54" mini version, which shows the current weather, and the following hour and day ahead.

A fully featured "kitchen sink" 4.2" tag that has lots of current weather data, the Sun rising & setting times, an additional day on the daily forecasts, and a lot more info in all the forecasts.

Installation

Add font GothamRnd-Bold.ttf to /config/media Home Assistant (create the folder "media" too).
Add template sensor ha-configuration.yaml to your configuration file in Home Assistant.
Add contents of automation.yaml (2.9") or automation-4.2.yaml (4.2") to a new automation in Home Assistant (Choose "Edit in Yaml" from top right three dots in a new automation). The automation is using a time template of every 15 minutes - adjust according to taste! There is also a condition on the automation to stop updating between 11pm and 6am - to aid in the lifespan of the display. Other checks could be put in place to only allow for updating the display on human presense etc.

Customizing

Time format

Time format for the hourly conditions can be formatted using the python function timestamp_custom() for, e.g. 12h time - 2 PM, or e.g. 24h time - 14:

{{ as_timestamp(weather_home_hourly.forecast[0].datetime) | timestamp_custom('%I %p') }} = 02 PM
{{ as_timestamp(weather_home_hourly.forecast[0].datetime) | timestamp_custom('%I') | int }} {{ as_timestamp(weather_home_hourly.forecast[0].datetime) | timestamp_custom('%p') }} = 2 PM
{{ as_timestamp(weather_home_hourly.forecast[0].datetime) | timestamp_custom('%H') }} = 14

If you go with a 24h hour display (e.g. 14) - amend your automation yaml file wm_time_0, wm_time_1, wm_time_2 and wm_time_3 from {{ state_attr('sensor.weatherman_data_tag','wm_time_0') | string | upper }} to {{ '%0.2d' | format(state_attr('sensor.weatherman_data_tag','wm_time_0')) | string | upper }} or you will get erorrs as it tries to format a string as a deciaml ('%0.2d').

Day names

To change the display of the day names to your prefered language, replace these occurences in the configuration with your own: {{ "%s" % (["Sun","Mon","Tue","Wed","Thu","Fri","Sat"][as_timestamp(state_attr('weather.home', 'forecast')[0].datetime) | timestamp_custom('%w') | int]) }}

Precipitation accuracy

I have removed the rounding for precipitation values (usually in mm). This will add a lot more 0.0, 0.1, 1.2 numbers on your screen. To tidy it up and just have round numbers, just add | round filter to any precipitation value in ha-configuration, e.g:

wm_precipitation_0: >
          {{ weather_home_hourly['weather.home']['forecast'][0].precipitation | round }}

Temperature right now

If you have an outdoor temperature sensor available in HASS, you could display that for the current temperature instead of the forecasted temperature. Replace this with your temperature entity: state_attr('sensor.weatherman_data_tag','wm_temp_0')

Units

The units for temperature, wind speed and precipitation are set in the forecast entity (cog wheel). You might need to change the units in the automation to (e.g from C to F, mm to in, etc).

Battery

There is a battery percentage for a tag in the attributes of the "weatherman" sensor (battery_strength_0000028329e608ff) for one of my tags, but this is no longer used - as the tags have a built in low battery sensor icon. You can remove this code in the weatherman template sensor if you wish. Or if you want a more dynamic battery icon - disable the low battery icon in the tag using your OEPL Access Point tag config command, and add in the following code to the automation:

- type: icon
          value: "{{ state_attr('sensor.weatherman_data_tag','battery_strength_0000028329e608ff') | string }}"
          x: 0
          y: 0
          size: 16
          color: >
            {% if state_attr('sensor.weatherman_data_tag','battery_strength_0000028329e608ff') == 'battery-low' or state_attr('sensor.weatherman_data_tag','battery_strength_0000028329e608ff') == 'battery-unknown' %}
              red
            {% else %}
              black
            {% endif %}

chunkysteveo / OpenEPaperLink-HA-Weatherman