Subcategories

• Lessons and Guides

  Lessons and Guides for Uiflow

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  422
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  R

  @aTT11 said in UIFlow V2 button on screen missing:

  Hello there,

  my goal is to control WLED fixture via CORE2 (by a simple http requests).

  Does anyone know how to add a simple buttons on a screen. Some older tuts show the button block in UI section but now it isn`t there.

  Thanks in advance.

  aTT

  does buttons now need to be added/enabled in hardware section? left hand side of the screen below device image

• Bug Report
  206
  Topics
  771
  Posts

  A

  Issue Summary

  I'm trying to run a simple "Hello World" program on my M5Stack Core using UIFlow2 on Ubuntu 22.04, but I keep experiencing an issue where the serial connection drops unexpectedly. Here’s what happens when clicking Run or Download the program to the device: a pop up appears, the device connects successfully and logs RAM information:

  heap RAM free: 55760 heap RAM alloc: 45296 heap RAM free: 55760 heap RAM alloc: 45296 ...

  After a few seconds, I get "Disconnected from Serial Port", and the device is no longer accessible.

  My device shows Public, the device mac, the associated user account, a QR Code ...

  What I've Tried So Far

  Checked USB connection Used a high-quality data USB cable. Switched between USB 2.0 and USB 3.0 ports. Tried a different cable and another PC. Verified Serial Port availability

  After disconnection, I ran ls /dev/ttyACM*

  Before and After disconnection: /dev/ttyACM0 is listed. I can't see if it disconnects when I upload the code

  Disabled ModemManager (Ubuntu) sudo systemctl stop ModemManager Flashed the latest UIFlow2 firmware using M5Burner Used M5Burner to install the latest version of UIFlow2. Issue persists even after flashing and rebooting. Tried a minimal script in UIFlow2 from m5stack import * from m5ui import * from uiflow import * lcd.clear() lcd.print("Hello World", 10, 10)

  The screen does not display "Hello World" before disconnection occurs.

  Questions

  Why does my M5Stack disconnect from the serial port after a few seconds? Is this a firmware issue or a hardware problem? Could this be related to power management settings or a driver issue on Linux?

  Any help would be greatly appreciated! Thanks in advance. 😊

• Custom Blocks
  11
  Topics
  33
  Posts

  A

  @jeanfabre
  On web, just choice block type.
  86b7a25c93207d9a32e5b33471bb1f0.png

  For code, add return description like this:
  def func(self) -> int:
  return 0