Needle based water heater gauge (half) in Home Assistant

[sachinvaishnav]

I have this gauge seen by my ESP32 via AI-on-the-edge. Digital setup I have disabled. Analog setup is enabled and all ROI/ config done. HA is able to read "some" values. But I am not able to figure out any meaning out of this. Is the model working with such half needle? How could I make it meaningful?

It was quite a learning for me to make it work with Deco router + ESP32 CAM board in HA. And now that I am this far, I really want to bring a conclusion to it. Please help!

[SybexX]

[sachinvaishnav]

Help me understand this please.

[SybexX]

The analog models only use the red arrow, the scale around it doesn't matter.
AllowNegativeRates you have to activate, since your values ​​can rise as well as fall, I would also activate ExtendedResolution.
Apparently, in your image, the arrow was evaluated in the wrong side, and therefore you have a value of 4 instead of 9.
You also need to add a calculation to solve this problem, such as:

    if ((value > 2.5) && (value < 7.5)) {
        // if the value is greater than 2.5 and less than 7.5 at the same time,
        // the arrow was evaluated in the wrong side (e.g. 9 was evaluated as 4).
        value = value + 5;
        if (value >= 10) {
            value = value - 10;
        }
    }

    if ((value >= 0) && (value <= 2.5)) {
        // 0 to 2.5 should become 2.5 to 5
        value = value + 2.5;
    }
    else if ((value >= 7.5) && (value <= 10)) {
        // 7.5 to 9.9 should become 0 to 2.4
        value = value - 7.5;
    }

    value = value * 20;

The result should then be like this:

[sachinvaishnav]

Thanks for those tips. I made those above changes (except calculation update logic). Error is gone. Values are now stuck to 5. When the needle was in center, it was showing 5. Now if you see even if its near yellow (earlier when it was in center it was 5) it continuing to show in 5. No error. What could be the reason why its not updating the value?

[SybexX]

changeratethreshold = 0
extendedresolution = true