New integration: LaMetric My Data DIY feed from Home Assistant entities

Share your Projects! Custom Integrations
1

Hi everyone,

I wanted to share a small custom integration I built for Home Assistant and LaMetric.

It creates a JSON feed for LaMetric’s My Data DIY app directly from Home Assistant entities, so you can configure the content in Home Assistant instead of maintaining separate scripts.

The idea is pretty simple:
you select a few entities, define how they should be shown on the LaMetric, and the integration writes the feed file for you.

Right now it supports:

  • up to 8 rotating frames per feed
  • per-frame icon, duration, prefix and suffix
  • formats for power, percent, energy, raw values and time
  • a dedicated current-time option for clock frames
  • automatic refresh when entity states change
  • automatic minute refresh for time frames
  • output as a static JSON file inside Home Assistant’s local/www area

I originally built it because I wanted an easy way to show a few values from my own setup on the LaMetric, like solar power, battery level and some energy-related stats, without keeping a custom script around.

This makes it easy to display things like:

  • solar power
  • battery level
  • EV status
  • imported or exported energy
  • a clock frame
  • any other sensor value from Home Assistant

The repository is here:
https://github.com/sgoelz/ha-lametric-mydata-diy

It can be added via HACS as a custom repository.

If anyone here is using a LaMetric with Home Assistant, feel free to try it out. Feedback, ideas or reports from other setups would definitely help.

1 Like
2

Hi everyone,

I just published a new release of my custom integration for LaMetric My Data DIY:

This release mainly improves usability and setup:

  • frame presets for common use cases like power, battery percentage, energy, temperature, voltage, current, and clock
  • additional value formats for temperature, voltage, and current
  • per-frame hide rules for 0, empty, and unavailable values
  • updated clock handling with the default clock icon 7645
  • improved labels and translations
  • refreshed brand assets
  • updated README and documentation

The integration can still be added through HACS as a custom repository.

Feedback and testing are always welcome.

3

Hello sgoelz,

Thank you very much for your integration. I’ve successfully set up the integration in HA.
I’ve also entered the HTTP Poll protocol type in the ‘My Data DIY’ section of the LaMetric app and added the HA URL. In the LaMetric app’s poll log, I can see 200 and 303 responses containing the expected sensor data. However, on the LaMetric device itself, I only see the My Data DIY icon with an arrow pointing to a zero or an O?

Do you have any ideas?

Best regards,
Guidau

4

Hello sgoelz,

I’ve managed to sort out the problem. Under ‘Data Format’, it needs to be set to ‘Predefined (LaMetric Format)’.
Is authentication for the JSON file poll already on the roadmap?
Or is it possible to send the JSON file directly via MQTT?

Many thanks again and best regards,
Guidau