Design question. Best way to transfer data from Esphome to an Integration

Development
1

Design question. I am reading CAN bus data via esphome. But I want to do the processing of the data within a custom integration. What is the fastest and easiest way to transfer the read CAN data ( 8 bytes ) to a HA custom integration

2

Can you have this component inside esphome such as a custom component?

3

Make it an entity in HA, and have your custom integration work with existing entities.

Then:

  1. HA can work with that data in many ways (eg automations)
  2. Your custom integration can work with that data no matter how it arrives in HA
4

I was thinking the same but can esphome create sensors to transfer byte (not simple type) data?

Another integration can create new entities coming from respective esphome device, I am also lost how to manage integration to device mapping?

5

Sounds great!
So can I create an entity that stores 8 bytes of binary data?

6

Probably not as binary, but Base64 certainly. May well be possible though, I’m no HA dev :wink:

7

Did you found a solution ? I am trying to do something similar but I do not know how to do that efficiently

8

Yes.
I have documented it here.

9

thanks I will look at it carefully :slight_smile:

10

I watch the video and it is excellent. I trying to do something similar but from a heat pump can bus so now I will look at your code! Thanks again great integration