Hey hi,
After being myself very pissed at how uiflow block the drivers and after reading and learning a bit i came to the obvious conclusion that...

The drivers are exposed for anyone in C, the uiflow firmware does not have uPython drivers in it. that is why they place them as frozen C modules inside the firmware.

It is no fault of M5Stack developers that we... community have not come up with uPython drivers. They can not release them because they do not have them. They have put all efforts to their own firmware with cloud "capabilities" for free.

I think most of the drivers for the commponents are out there in uPython form, except the LCD ones. That is because of speed. The C drivers frozen on the firmware are way way faster than any upython version could be.

Please note that i am a hobbyist and not a professional programmer so that that from there.

StickC/Plus do not have BLE option because of the limitations, remember your are loading a big chunk of code called uiflow into it, and besides that you are trying to add BLE.

All this is accessible directly by Micropython code directly. It is not that the StickC/Plus can not do it. It can, is just that the BLE libraries are not included in the StickC/Plus firmware.

I have seen the contests that m5stack has made, the latest i think a photography one.

Would be great to have a contest to see who comes first with the Micropython Modules so needed for the devices. Like the m5core2 LCD one at least.

This would increase the code base needed to attract more developers to this platform.

I was willing to give some gift cards from famous online store or m5stack store credit to anyone coming up with a basic set of modules for the Core2. That would be AXP192, the LCD, SD card, and the Speaker and Mic.

I do not know if this would be allowed to do by m5stack. Or if the community would be interested

Please let me know.

I wanted to add that you should NOT be intimidated by all this micropython, repl, etc.
It will be coming to you step by step. You are in the right direction by getting your hands dirty and going beyond uiflow.

Things to take in consideration about your core2:

• It is based on ESP32 microcontroller
• Uiflow runs on micropython.
  With just those 2 things you can find a whole lot of answers online. In fact most of my programming time is spend reading forums looking for answers for my questions.

and of course a lot of this community is eager to help "newbies" so our community grows. So ask away.

@akaf24

Well.. so sorry... you are right!
I was certain i took the code from there but i was wrong. It is on the main m5stack library
check here:
https://github.com/m5stack/M5Stack/tree/master/examples/Basics/Speaker

If i dont remember wrong (again) it worked for me.

Sorry again.

@akaf24
The arduino library examples folder has a beep demo fore Core2

What i am doing right now, is just work with the uiflow firmware but i unload from memory the modules for uiflowmenu on my main.py and then i load what i want. It does load the UIFLOW menu at the beginning but just for a second. Then blank canvas to work. I use either rshell when allowed or Thonny.

@iamashish
This guy shows how to use 2 cores with arduino

https://youtu.be/9vvobRfFOwk

@barbiani
I am blank now.
If anyone has an idea can step in now :)

@marcvl
Hello,
Besides the "auto align" of the uiflow interface, you would need to make that by programming. By programming i am refering to either pure code or BLOCKS)

For example: (And i do not have the right numbers or functions at hand)

if your screen is 320x180
then the center of the screen would be 160x90
If your button (or any object) is 20w x 10h... how would you put it at center?

myX= 160-10
myY= 90-5
button1 = M5Btn(text='Button', x=myX, y=myY, w=20, h=10)

So you sustract the half of the size of your object from the half size of your screen.
And you can do that with relation to any object or any kind of reticle.

Some objects like buttons have properties like width height, x and y.
so if you ask for button1.w or button1.h (you have to check the real properties of your object, it could be button1.width or button1.height, check the documentation.) This way you can re arrenge your ui programatically asking for an object size and position.

like this:(its just an example i dont think it works)
button1 = M5Btn(text='Button', x=0, y=0 w=20, h=10)
button1.x = myScreen.width - (button1.w / 2)
button1.y = myScreen.height - (button1.h / 2)

And from this you get into more complex reticles. A good advice is to plan your interface ahead of time and think of this aligments from the start.
You will get a hang of that with time and will discover more easy ways to do it or more efficent ones.

I recommend you search for tutorials on programming UI interfaces and aligning them. Most of the time i do not use the UI composition screen, i just drop the elements and i align them programatically.

Maybe.. there is a way to do it easy on UIFLOW, but if you really want to have control of your elements and interface, you need to know by code where your objects are in relation to one another.

Hope i did not confuse you too much.

Hmmm, ok my next suspicion is either your USB cable or the version or how you are running esptool.

How is your set up?
are you using windows, linux mac?
Have you updated your platform drivers ?
Have you tried another USB cable?
Are you using a USB hub in between?

My last suspicion is your core2.

if you do import module "m5stack"

import m5stack

and do a:

dir(m5stack)

['__class__', '__name__', '__file__', 'btn', 'btnA', 'btnB', 'btnC', 'decoder', 'display', 'espidf', 'gc', 'lvesp32', 'machine', 'rtch', 'touch', 'power', 'rtc', 'lv', 'get_png_info', 'open_png', 'binascii', 'Axp192', 'i2c_bus', 'i2c', 'lcd', 'disp_buf1', 'buf1_1', 'buf1_2', 'disp_drv', 'indev_drv', 'button', 'time_ex', 'timEx', 'timeSchedule', 'timerSch', 'BM8563', 'Speaker', 'speaker', 'Rgb_multi', 'rgb', 'node_id', 'psram_init', '_remote_init', 'remoteInit']

you will see one of those methods is called: lcd
if you go again and do a

dir(m5stack.lcd)

['__class__', 'clear', 'print', 'BLACK', 'BLUE', 'BMP', 'BOTTOM', 'CENTER', 'COLOR_BITS16', 'COLOR_BITS24', 'CYAN', 'DARKCYAN', 'DARKGREEN', 'DARKGREY', 'FONT_7seg', 'FONT_Comic', 'FONT_Default', 'FONT_DefaultSmall', 'FONT_DejaVu18', 'FONT_DejaVu24', 'FONT_DejaVu40', 'FONT_DejaVu56', 'FONT_DejaVu72', 'FONT_Minya', 'FONT_Small', 'FONT_Tooney', 'FONT_Ubuntu', 'GREEN', 'GREENYELLOW', 'HSPI', 'ICON_App', 'ICON_AppIcon', 'ICON_AppMenu', 'ICON_Cloud', 'ICON_Eath', 'ICON_Key', 'ICON_ListOFF', 'ICON_ListON', 'ICON_Machine', 'ICON_Retry', 'ICON_SetMenu', 'ICON_Setup', 'ICON_USB', 'ICON_Url', 'ICON_Wifi', 'ICON_WifiBig', 'JPG', 'LANDSCAPE', 'LANDSCAPE_FLIP', 'LASTX', 'LASTY', 'LIGHTGREY', 'M5STACK', 'MAGENTA', 'MAROON', 'NAVY', 'OLIVE', 'ORANGE', 'PINK', 'PORTRAIT', 'PORTRAIT_FLIP', 'PURPLE', 'RED', 'RIGHT', 'SPRITE_16BIT', 'SPRITE_1BIT', 'SPRITE_8BIT', 'VSPI', 'WHITE', 'YELLOW', 'arc', 'attrib7seg', 'circle', 'clearwin', 'compileFont', 'drawCircle', 'drawLine', 'drawPixel', 'drawRect', 'drawRoundRect', 'drawSwitchBtn', 'drawTriangle', 'ellipse', 'fill', 'fillCircle', 'fillRect', 'fillRoundRect', 'fillScreen', 'fillTriangle', 'font', 'fontSize', 'getCursor', 'get_bg', 'get_fg', 'hsb2rgb', 'image', 'image_buff', 'line', 'lineByAngle', 'orient', 'pixel', 'polygon', 'println', 'qrcode', 'rect', 'resetwin', 'restorewin', 'roundrect', 'savewin', 'screensize', 'setColor', 'setCursor', 'setRotation', 'setTextColor', 'set_bg', 'set_fg', 'setwin', 'sprite_create', 'sprite_delete', 'sprite_deselect', 'sprite_drawGrayMap', 'sprite_select', 'sprite_show', 'text', 'textClear', 'textWidth', 'text_x', 'text_y', 'tft_deselect', 'tft_readcmd', 'tft_select', 'tft_setspeed', 'tft_writecmd', 'tft_writecmddata', 'triangle', 'winsize']

it will show you the methods for that.
one of them being "clear"
so...
if you do:

m5stack.lcd.clear()

you will clear screen.

AN alternative for dir() is to type the name of the module then a period "." and TAB key
like this:

m5stack.TABkey

I could have just told you to do:

import m5stack
m5stack.lcd.clear()

But i did all that so you can find more interesting stuff by yourself. Remember to check out some basic python tutorials.

About your error of core2 rebooting... yes that is the RTOS rebooting for a wrong memory access.

I wanted to add that you should NOT be intimidated by all this micropython, repl, etc.
It will be coming to you step by step. You are in the right direction by getting your hands dirty and going beyond uiflow.

Things to take in consideration about your core2:

• It is based on ESP32 microcontroller
• Uiflow runs on micropython.
  With just those 2 things you can find a whole lot of answers online. In fact most of my programming time is spend reading forums looking for answers for my questions.

and of course a lot of this community is eager to help "newbies" so our community grows. So ask away.

Well...
I am no pro either but you can start by learning a bit of python. There are tons of videos and books online to get you started.

For the lcd.clear() i think you have to import lcd or m5stack modules. You can see a list of loadable modules with:

help('modules')

and to see a list of already loaded modules you can try:

dir()

to load a module you go like this:

import modulename

I dont know about MU but give Thonny a try. When running thonny you need to select the interpreter in the options menu as Esp32 generic... i think.

If some code is trying to access some illegal address or function the rtos will make a reboot of the whole system. That is why you need to learn a bit more about python so you understand how modules are loaded.

Be patient, read a lot. and ask questions like this one but more precise, that way more people will help you out. The above list is kind of vague and could require a pretty long long answer.