Ok, here is what I found even though it said the Upload failed and it hung up on the Core2 saying "Uploading" After I reset the core2 it didn't automatically boot to the app but if I went to the app list on the core2 it was there. I selected it and then selected "Run" and nothing happened so I reset the Core2. After resetting the Core2 it automatically booted the app. I guess I will contact Tech support and ask them what is going on. Hopefully this workaround will help someone else.

I have been using the Core2 for awhile now. So am familiar with "downloading" an app into the core. Today I was expanding an app and it would "Run" just fine for testing. When I went to "download" the app it came back with an error that state "Upload Code Failed". I reflashed the Core2 with an earlier version of firmware same result. Rebooted PC same result. Loaded an earlier version of this app that had about 465 lines of python code and it "downloaded" just fine.

So, the app in question is now larger at 785 lines of python code, not sure if that has anything to do with it or not. The Core2 will hang with "Uploading" until it is rebooted. I tried a 2nd Core2 same results.

I am using UIFLOW desktop version V1.7.5 with firmware version V1.7.8

Any insight into how to resolve this would be greatly appreciated.

@se Ok I found that the buzzer is connected to GPIO2 so used a PWM and am able to get a very low volume tone out if it. So, can someone tell me how to get a usable audio level out of this little buzzer.

Thanks

I must be missing something but I cannot seem to get any sound out of CPlus internal buzzer. I'm not sure if the Speaker Commands pertain to the internal buzzer or only the external hat speaker. I am using UIFlow but can do an Execute command if necessary.

I have been playing with the Core2 for awhile but just got a StickCPlus today so a little clueless regarding it.

Any suggestions would be greatly appreciated.

Thanks

After consulting with M5Stack tech support they indicated the only way to re-mount a card after it has been ejected and re-inserted is to reboot the device.

It is definitely something to do with the size of the program. Once it reaches a certain size it will no longer run. All I have to do is delete anything (reducing the size) and it will run again. I provided a sample of my code to tech support and they are working with engineering to investigate.

Thanks for the feedback. After flashing the Core2 to a different version. It wipes out all my apps and leaves behind a Color app and temp app. Since they don't show in the Device File manager I think they want them left alone. I assume the color app could go but not sure how to delete without Device File Manager. The "Temp" app probably needs to stay. Your suggestion did get me to look a little closer I had spaces in my file name (should have known better) which resulted in the Device file manager splitting it into "3 Files". I assume that it created 2 empty files and actually 1 real file with my app. Anyway couldn't delete them so re-flashed to clean it up. When "Run" it, with additional code, it causes the device to reset without ever seeing the app run. If I "Download" it, after adding some additional code, it does not reset the device and appears to run. Might be something with RAM. Tried a different Core2 with same results. Here is a pic of the filename and the way it split it. If you have any additional suggestions that would be great.

Also have you seen instances where the buttons along the bottom of the screen don't process their "Press" code as well as the soft "Button" you place on the screen doing the same thing. I will have things working properly and not touch the code for those routines and next thing I know they aren't processing anymore. If I through a label into the press routine, for output, I don't see it change either like the button press is not being recognized. Thanks again

I have a program that I don't consider excessively large. It mainly has 6 different screen layouts along with that overhead. The file size is 97K. It has reached the point that it runs as is but if I add anything to it (ie: If I change the wording of a label) will not run and the Core2 resets itself. I have tried from v1.7.0 up to 1.7.2 with the same results. So, have I reached size limitation? If so how do I tell available space and what is being used? If anyone has any suggestions it would be greatly appreciated. I am using Blockly which is translated into 477 lines of Python.
Thanks for any insight.

On the Grey Core UIFLOW there is a volume command but on under the CORE2 Beta UIFLOW I cannot find one. Here is a screenshot. Let me know what you think. Thanks

Under "Speaker" in UIFLOW there is the ability to play wave files but the next step is to obviously change volume. Does anyone know how to change volume on a Core2 in UIFLOW or Python?