Posts made by purpledread

Are there instructions someplace on how to create an image that can be burned into an M5 Core2?

I'd like to make an image with Micropython, LVGL, etc. so I have more capability than the base image, but I also want to be able to preserve support for Audio and other Core2 specific functionality.

Thanks

Yes, I want to be able to build a firmware file with MicroPython & LGVL.

How do you cross compile for the ESP32? How do you then make the firmware image?

Where would I find the details needed to build an image to run on the Core2?

Thanks

@felmue

Thanks. Any kind of sound would be great.

My machine module doesn't have the I2S used in this example.

/Chris

I'm developing on the Core2 with Micropython LVGL.

Is there someway to use the 3 capacitive buttons?

@purpledread

Never mind. As simple Python code.

Thanks!

@staberas

This code was very helpful. Thanks!

I tried adding temperature as well:

tmp = i2c.readfrom_mem(MPU6886_ADDRESS, MPU6886_TEMP_OUT_H, 2)
temp = (tmp[0]<<8|tmp[1])
temp = (float(temp) / 326.8) + 25.0;

I'm getting temps of 40.5C (105F). Am I doing something wrong or is this temperature the CPU temp?

Thanks,
/Chris

@dhed

Sorry for the newbe questions. You've been a big help.

When you say you load files to ram from the boot.py file, how do you access that ram from the main.py file?

@macsbug

I really appreciate the response, but I'm running with an image that just has lvgl and micropython and not the M5 classes.

Looking for how to play a sound with the standard esp32 hardware support on the device.

/Chris

@purpledread

Should have mentioned I'm running on a M5Core2.

/Chris

I'm using the LVGL with MicroPython for a project and I'd like to be able to make a click noice when the user interacts with the application's buttons.

Is there any easy way to do that?

@dhed

I'm trying to read from the SD card on startup and then use the display.

If I access the sd card, the program runs with no errors, but nothing displays.

I tried initializing the display using the example you gave, but I get an error that there isn't enough DMA-able memory to allocate the display buffer.

/Chris

@dhed

Actually, ampy is working fairly well.

Thanks,
/Chris

@dhed

That's all working now, including using ampy to copy files and run code.

I'm use to using Mu Editor with my other ESP32 boards.

Is there some way to run Python code and get back error messages if there is an issue in the code?

Thanks!
/Chris

Thanks, the new upload link worked.

/Chris

@dhed

I tried to get your compiled firmware, but that ZippyShare site keeps trying to download other things and I can't get it to download your file.

Thanks,
/Chris

Burned the Core2_Tools and then the UIFlow_Core2 again (have burned it a few times before). This time it displayed the App with the option for UIFlow and everything is working now.

I do still get the Upload failed errors sometime, but it is installing the app on the device.

/Chris

I was able to get the Burn image to work, and I burned the UIFlow(Core) image into it. I configured it with the Wifi SSID / password, tried to put it in USB mode, but it always seems to revert to App Mode. Also enabled Boot Menu.

When I run UIFlow, it appears to connect to M5 without an issue and then a little later shows disconnected in the bottom left of the window.

When I try to Run the program, I get an error saying Upload code failed, maybe your device is offline check it any try again.

Thanks,
/Chris