For me, the issue is resolved, but not quite with an eye to the future. I had the UI Flow IDE on the desktop 1.9.5 ( there is unfortunately not newer) and on the Atom Lite I had the 1.11.0. Thereby it came to incompatibilities that the EspNow in the newer variant works quite differently. BADLY.

Okay ... that falls then under "teaching money" and super stupid. Happens when it should always be done quickly on the side.

Hi ajb2k3 & teastain,
thanks a lot for your advices.
I will look at micropython side but I'm very concerned by the fact that the UIFlow blocks I used have been deprecated without notice. I'm on a very bug hurry now.
I went back to V1.9.8 firmware on my M5StickCPlus and M5Core and everything is working again now. At least temporarily.
Have a good week

During compile I found this error message:
Multiple libraries were found for "SD.h"
Used: C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\hardware\esp32\2.0.5\libraries\SD
Not used: C:\Program Files (x86)\Arduino\libraries\SD
Multiple libraries were found for "WiFiClient.h"
Used: C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\hardware\esp32\2.0.5\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
"C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch3/bin/xtensa-esp32-elf-ar" cr "C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900\core\core.a" "C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900\core\esp32-hal-rgb-led.c.o"
remove core\core.a: The process cannot access the file because it is being used by another process.
"C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch3/bin/xtensa-esp32-elf-ar" cr "C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900\core\core.a" "C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900\core\esp32-hal-rmt.c.o"
Error compiling for board M5Stack-Paper.

and then after compile I get this:
"C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\tools\xtensa-esp32-elf-gcc\gcc8_4_0-esp-2021r2-patch3/bin/xtensa-esp32-elf-size" -A "C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900/M5Paper_Hello_World.ino.elf"
Sketch uses 415801 bytes (6%) of program storage space. Maximum is 6553600 bytes.
Global variables use 18392 bytes (0%) of dynamic memory, leaving 4503592 bytes for local variables. Maximum is 4521984 bytes.
C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\tools\esptool_py\3.3.0/esptool.exe --chip esp32 --port COM6 --baud 921600 --before default_reset --after hard_reset write_flash {upload.erase_cmd} -z --flash_mode dio --flash_freq 80m --flash_size 16MB 0x1000 C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900/M5Paper_Hello_World.ino.bootloader.bin 0x8000 C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900/M5Paper_Hello_World.ino.partitions.bin 0xe000 C:\Users\Gordon\AppData\Local\Arduino15\packages\m5stack\hardware\esp32\2.0.5/tools/partitions/boot_app0.bin 0x10000 C:\Users\Gordon\AppData\Local\Temp\arduino_build_476900/M5Paper_Hello_World.ino.bin
usage: esptool write_flash [-h] [--erase-all]
[--flash_freq {keep,80m,60m,48m,40m,30m,26m,24m,20m,16m,15m,12m}]
[--flash_mode {keep,qio,qout,dio,dout}]
[--flash_size FLASH_SIZE]
[--spi-connection SPI_CONNECTION] [--no-progress]
[--verify] [--encrypt]
[--encrypt-files <address> <filename> [<address> <filename> ...]]
[--ignore-flash-encryption-efuse-setting]
[--compress | --no-compress]
<address> <filename> [<address> <filename> ...]
esptool write_flash: error: argument <address> <filename>: Address "{upload.erase_cmd}" must be a number
esptool write_flash: error: argument <address> <filename>: Address "{upload.erase_cmd}" must be a number

@asshutossh Check for memory issues, Kernal panics and or Guru meditation errors using a terminal program.

There are only 2 causes for this.

the first is the battery not charged fully or The memory is getting filled and causing a kernal panic resulting it CPU shutoff or reset.

Hello,

after three years is it possible to show a static WebPage on the M5Stack/M5Core2?
Anyone has an idea?

Hello @jsarge

I don't know if and when the Station-485 will be added to the Arduino Board library. But since it uses the same ESP32 chip as the M5Stack Basic I'd guess selecting that should work. (Note: I do not (yet) have a Station-485 so I cannot test myself.)

M5Station-485 documentation is here including a link to the Arduino library.

Normally the preinstalled firmware is for UIFlow (not sure that is true for M5Station-485 though). Anyhow, UIFlow firmware can be installed via M5Burner found here.

Edit:

Thanks
Felix

After a lot of testing I came to the following conclusion:

The problem was that I waited too long before enabling GPIO pin 12 in my code. This pin is used to keep the device powered by the battery.

I'm just speculating here, but it seems like there is a time frame in which you need to enable this pin, otherwise the device will not successfully boot.

Thanks!
Nick

I didn't get anywhere setting GPIO1 however I downloaded UIFlow v3.0 from https://docs.m5stack.com/en/download and uploaded the latest version v1.10.1 to my Core Ink and now I have working Restart and Power On / Off :-)

Hello @cepics

according to the schematic both ports are connected in parallel - no need to select one (or the other).

Thanks
Felix

Hello @schedule-display

Have you tried the RTC example (w/o modifications)?

In your code, why did you add the two gpio_xxx lines? I think they are the reason M5Paper cannot shutdown.

Also this thread might be helpful.

Thanks
Felix

@macsbug Thanks for the tip I will give it a shot. The short demo video looks promising as I see a gauge that looks great. I have similar results with the Sprite library but fall short on compositing sprites past pushRotated.

Thanks

Hello @dominik

the nice thing about ESP32 and its variants (like the C3) is that different functions (like SPI) can use almost any GPIOs.

With the Arduino environment you can define the GPIOs to be used for SPI like this:

Thanks
Felix

@flypeek Thank you! Never thought I should look in the 'Lessons' section.

@arzaman I have the same model and version "V2.4 1420". Do you already have an answer to your question? I would like to know also.

@ajb2k3 sorry, what do you mean by "HV write"?