Oscilloscope: Range does not change, when option is chosen

[mariobehling]

The Oscilloscope has the option to change the range, e.g. of the Voltage display. This is currently not working. There is no visual change in the app if the user changes the range.

• Th setting sensitivity doesn't work, it is always +-16V

[991rajat]

Works fine on my device.

[marcnause]

It works if the channel is selected (check mark is set). It does not work if the channel is not selected.

If the expected behaviour is that the range can only be changed if the channel is selected, then I would expect the range selection to be disabled if the channel is not selected. This would provide a visual hint to the user.

Also the range does not change if:

1. the channel is not selected
2. a different range is selected
3. the channel is selected

[991rajat]

Still in my device.
If the channel is not selected -> changing range changes the graph.
If the channel is selected -> changing range changes the graph.
I'm not able to get it what bug is. Does it require hardware?

[marcnause]

It may depend on the Android API level.

It works as pictured by @991rajat on my device with Android 9 (Fairphone 2, LineageOS), but if I use my test device with Android 7 (Motorola Moto X Play, /e/) I get the behaviour as described by @mariobehling.

Today it works on the device which it did not work on yesterday. 😕

[991rajat]

@Low012, Yes I also not able to reproduce the error.

[kartikeysaran]

Can i take up this issue

[AnishaSingh0118]

may i work on this issue?

[kartikeysaran]

Sure @AnishaSingh0118 go ahead !

[AnishaSingh0118]

Sure @AnishaSingh0118 go ahead !

Thanks 😊

[marcnause]

I had a quick look at the issue again. I think it is only reproducable with the hardware. If no signal is displayed in the oscillosocope screen, changing the range works on my device. Once a signal is displayed, the range always resets to +/- 16V

[marcnause]

I tested again with the latest development version of the app (5d6b449) and a v6 board. The problem still exists.