I accidentally deleted the wav file in the res/ folder on the Core2 flash (don't remember the exact name of the file). But you could just rename it. Now the startup sound is gone. So this is a qick'n'dirty fix if you don't want this sound.

@robski

I added everything from the hardware and software menu. But I still cannot find the widgets I listed above. Where are they?

Is this a question difficult to answer?
It shouldn't be for the M5Stack devs. So please, it would be nice if you could spare these 2 mins. Thanks

There were some very useful UI widgets in UIFlow 1 such as:

• Button
• Switch
• Slider
• Bar
• Message Box

What happened to these in UIFlow 2? Any chance to use them (or something equivalent)?

With the UIFlow 1.x Micropython firmware it was possible to work with multiple screens using the M5Screen class.

How can this be done with the UIFlow 2.x firmware? I see there is a Display class in the M5 module and some functions which look interesting:

Displays()
addDisplay()
getDisplay()
getDisplayIndex()
getDisplayCount()
setPrimaryDisplay()

I couldn't find the documentation for these functions. Are there any docs explaining how to use them or some example code?

The documentation of the M5 LVGL API does not state a method for specifying the background color of a M5Msgbox.
However, I found that a M5Msgbox object has a style property which has a set_bg_color method . So I tried this:

myMsgboxObj.style.set_bg_color(lvgl.STATE.DEFAULT, lvgl.color_hex(0x888888))

This does not produce an error but meither does it change the backgound color of the box.

Any ideas?

Looks like this ntptime timestamp is relative to 01/01/2000, and not to 01/01/1970 like the Epoch Unix timestamp.

Yes, watchdog timer could be an idea. The same can be done with a normal timer and calling machine.reset() when it fires.

However I was wondering if there was a more graceful way of handling this, e.g. interrupting just the hanging urequests.request() method and then continuing with the program without rebooting the whole device.

The urequests.request() method does not implement e timeout parameter (like its big brother). So if there is not response to a certain request, the method will hang forever.

To work around this I am starting a timer just before the urequests.request() call and stop it directly after it. So if the method does not return within a define time, the timer will fire and I can do something.

So the question is, when the timer fires, which means urequests.request() is stuck, what can I do to recover? One thing could be to reset the device. But is there a more soft way to do this and continue with the application?

Thanks, Ondrej

Thanks a lot. This seems exactly what I was looking for. Command line is not a problem. Will try it.

I accidentally deleted the wav file in the res/ folder on the Core2 flash (don't remember the exact name of the file). But you could just rename it. Now the startup sound is gone. So this is a qick'n'dirty fix if you don't want this sound.