"Illumination Period" gets reset to 1.5s

[breversa]

Describe the bug
Whenever I open the Settings tab, the Illumination Period is reset to 1.5s, even if I had selected 3s before.

To Reproduce
Steps to reproduce the behavior:

1. Open the app.
2. Connect your watch.
3. Go to the Settings tab.
4. Set Illumination Period to 3s.
5. Tap "Send to watch".
6. Close the app.
7. Repeat 1-3.
8. See that the Illumination Period is reset to 1.5s.

This is frustrating as the Illumination Period will change if I tab "Send to watch" without changing the period.

Expected behavior
The Illumination Period remains on 3s.

Smartphone (please complete the following information):

• Device: Samsung Galaxy S9
• OS: /e/OS 1.17R = Android 11
• Casio G-Shock SmartSync 11.6

Additional context
#63

[breversa]

Hello!

After more testing, it appears that this is simply a display issue: the app shows "1.5s" selected, but the real value that is sent to the watch is 3s.

[izivkov]

Unfortunately, we are not able to address this issue at this time, because we do not have the watch for development.

Closing

[breversa]

What about saving the app setting regarding the illumination period?

[izivkov]

So, to read and update the illumination period, the app reads and sets some registers on the watch. However, for this watch, these registers are different, so basically the app fails to read and set them. When we read the values, we display the default value of 1.5s. When we try to set it to 3s, this has no effect, so next time we display the same default value of 1.5s. We do not know what these registers are for this watch, and can only be determined interactively by careful examination of the Bluetooth logs. This is not something that can be done easily without having the watch, even if you try to help. So let us leave this for now, and hope that somebody can contribute their time to develop this feature.

[breversa]

Thanks for your explanation!