[Update]: Thermopro TP357

[capo-at-the-5th-fret]

Reference: #961

"I'll run a scan again in a couple weeks to see if I can detect a battery level change."

Well, I forgot to send an update for battery level!

In the sample from the issue I posted:

043e 25 02010000 012a98487e48 19 0d 09 545033353720283241303129 02 0105 07 ffc2 1701 27 022c bc

27 = humidity
02 = battery level

So the byte after the humidity is the battery level, where 2 = 3 bars, 1 = 2 bars, 0 = 1 bar.

This is what 3 bars looks like in the UI:

I was using this code:

xvalue = data[3:7]
        (temp, humi, battery) = unpack("<hBB", xvalue)
        result = {
            "temperature": temp / 10,
            "humidity": humi,
            "battery": battery
        }

just so I could have a battery value, but it would be reported as 2%, 1% and 0%. Something like High, Medium and Low (or 3 bars, 2 bars, 1 bar) would be much better, but I don't know how to do that, or if it's even possible?

Here's the battery 'diary':

2022-12-23 - Generic Brand, came with something, possibly Google Chromecast
2023-04-13 - Battery level changed from 2 to 1 (1.15V using multimeter)
2023-05-07 - Battery level changed from 1 to 0 (0.91V using multimeter)
2023-06-02 - Battery dead (0.64V using multimeter)
2023-06-02 - Greencell Brand, came with something (1.27V using multimeter; reads full in app)
2023-06-07 - Battery level changed from 2 to 1 (1.18V using multimeter)
2023-06-13 - Battery dead (1.11V using multimeter)
2023-06-13 - Energizer Lithium (1.73V using multimeter)
2024-01-10 - Battery level changed from 2 to 1
2024-01-13 - Battery level changed from 1 to 0

It doesn't seem to last long on level 1.