Subcategories

• ESPHome

  You can discuss ESPHome related issues here, share your yaml and projects.

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  E

  @konstantint Thankyou for doing that! very useful.

  I see your config puts the reset pin definitions directly in the correct driver sections for the touchscreen and LCD so that those driver handle them correctly. I think this is better than doing it separately the way I suggested :-)

• Squareline Studio / LVGL

  Squareline Studio and LVGL Discussion

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  S

  @俺がガンダムだ said in LVGL performance problem:

  I applied LVGL on stickc-plus2，with TFT_eSPI's st7789v2 driver.But the refreshing rate is very low (while doing "load screen anim").I know stickc had good performance on drawing screen (by watching the video of M5stick T-Lite Thermal tutorial). And the LVGL also has a good performance through Dial-ESP32-S3 and Din-Meter demonstration video.

  So what is the reason of such low performance. Cound it be the TFT_eSPI library?

  I’ve seen similar issues on the StickC-Plus2. It could be due to TFT_eSPI settings, try increasing the SPI frequency or enabling DMA. Also, check your LVGL buffer config; full buffering helps with performance.

• UIFlow

  Discuss all things UIFlow here. Bugs, Improvements, Guides etc...

  Lessons and Guides Bug Report Custom Blocks
  1.1k
  Topics
  4.2k
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  K

  I'm experiencing multiple issues uploading firmware to the cardputer.
  I'm unable to connect to the cardputer unless I do: "sudo chown 'user' ttyACM0"
  After do this I can verify a connection in m5burner but I can't burn anything if I do it says the following:

  "JavaScript error occurred in the main process"
  "uncaught Exception:
  Error: spawn /mnt/'drive'/'file'/0M5Burner-v3-beta-linux-x64/packages/tool/esptool EACCES
  at Process.ChildProcess._handle.onexit (node:internal/child_process:282:19
  at onErrorNT (node:internal/child_process:477:16)
  at processTicksAndRejections (node:internal/process/task_queues:83:21

  I've also tried running as admin.
  "sudo ./m5burner"
  which returns:
  [1230/051906.244212:FATAL:electron_main_delegate.cc(290)] Running as root without --no-sandbox is not supported. See https://crbug.com/638180.
  fish: Job 1, 'sudo ./m5burner' terminated by signal SIGTRAP (Trace or breakpoint trap)

  so then I tried adding no sandbox "sudo --no--sandbox ./m5burner"
  which returns
  sudo: unrecognized option '--no--sandbox'

  I welcome any suggestions that might fix this sour pickle.

• Arduino

  M5Stack is programmable with the Arduino IDE. Here you can troubleshoot your issues and share Arduino code and libraries

  Lessons and Guides
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  Topics
  1.6k
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  T

  Tab5 uses internally I2C for example for RTC and Battery-status. I can add I2C devices on the I2C port in this way:
  setup():

  // Start I2C if (!M5.Ex_I2C.begin(I2C_NUM_0, 31, 32)) { Serial.println("Ex_I2C initialization failed!"); } else { exI2CInitialized = true; Serial.println("Ex_I2C ok! "); }

  In the modified I2C sensor code:

  uint8_t TON_BME280::read8(byte reg) { return M5.Ex_I2C.readRegister8(BME280_ADDRESS, reg, 400000U); }

  This works on Arduino, RTC (internal) and BME280 (external) are available.

  However, on PlatformIO same code, it does not work. The first call to battery status returns zeroes and subsequent I2C calls hang the system.

  Why use PlatformIO then? It compiles quicker, more control over libraries possible (lvgl 8 or 9 etc)

  Why use the same pins as internal for external I2C instead of two fresh ones?
  Modules like relays or stepper controllers all use the 31 and 32 pins for I2C

  platformio.ini:

  [env:m5stack-tab5-p4] platform = https://github.com/pioarduino/platform-espressif32/releases/download/stable/platform-espressif32.zip board = m5stack-tab5-p4 framework = arduino upload_port = COM12 monitor_port = COM12 upload_speed = 1500000 monitor_speed = 115200 build_type = debug board_build.partitions = partitions.csv lib_deps = lvgl/lvgl@^8.3.11 paulstoffregen/OneWire@^2.3.8 milesburton/DallasTemperature@^4.0.5
• Micropython

  Discuss all things Micropython here. Get help, Recommend Libraries, Report Bugs and Improvements

  Lessons and Guides
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  888
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  E

  Hi all;

  This is something I've been working on; a easy way of taking control of the Tab5's power management circuitry from vanilla MicroPython; without needing a special board build.

  https://codeberg.org/easytarget/tab5-egpio-micropython

  The README there has the full install and usage notes; plus a list of the (30!) methods it provides. This is deigned to be very simple in use; it is self-contained and lets you:

  Control power on/off for the WiFi chip, Speaker Amplifier, USB-A port and Expansion port 5V power. Switch WiFi between internal and external antennas Enable and disable battery charging, set the quick charge status, read the charge indicator pin. Read the battery voltage and current in/out. Detect if headphones are plugged in. Set LCD backlight brightness Trigger a poweroff event. Send reset signals to the LCD, TouchPanel and Camera modules.

  Use it to create a power control object and set the device up as you need:

  from tab5_egpio import TAB5_EGPIO tab5pwr = TAB5_EGPIO() tab5pwr.wlan_pwr_on() tab5pwr.charge_enable() # later (let the charge controller settle first) voltage, current = tab5pwr.battery_status() print('Battery: {:.2f}V @ {:.3f}A'.format(voltage, current))

  There are some demo's in the repo that show how to use this in more detail. And I have a page where I am documenting general hardware related Tab5 micropython information at: https://codeberg.org/easytarget/m5-tab5-micropython

  [note: I'm cross-posting this here from the micropython official discussions, since it is specific to the Tab5]

• M5EZ

  For discussion and assistance with M5EZ.

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  J

  using the mentioned changes hello_world example did compile and got uploaded to my core2. However , nothing is shown on screen, screen remains black.

• ESP - IDF

  Discuss all things related to ESP - IDF, Espressifs IoT Development Framework

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  Topics
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  D

  I fix the problem by remove condensator C9
  audioModuleFix.png

  https://youtube.com/shorts/OJ2RSZR5Y94?si=I5c_K-Tsh-rh9QJC

• UiFlow 2.0

  UiFlow 2.0 related issues discussion.

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  G

  Thank you for the M5Stack devices and coding tools. This community forum has been a great help too. I have been successfully using UiFlow2 to create code for a Cardputer. But I think there is a bug in the UiFlow2 web UI and/or m5f2 file format.

  THIS WORKS: I can save to the cloud, save the project to a local file, and reimport that file, when the script is like:

  sTestString = None def setup(): global sTestString M5.begin() Widgets.fillScreen(0x000000) sTestString = 'hello' def loop(): global sTestString M5.update()

  THIS DOESN'T WORK: If I edit it and assign a particular more complex value to the string, I cannot save to the cloud, nor reimport a file saved locally:

  sTestString = 'OL,1,RW7###jp0 55 j"#k#!7##ih###4up j`%##7#'

  This string happens to be a line from a teletext page .tti file, which includes some display control codes. Here is a screenshot of the code which can't be saved to the cloud or reimported, in the UiFlow2 UI:

  4afd05da-a1ee-4057-a251-fcb98e423e69-image.png

  Decoding this string's value is:

  \u004f\u004c\u002c\u0031\u002c\u001b\u0052\u007f\u001b\u0057\u0037\u0023\u0023\u0023\u006a\u0070\u0030\u0020\u0035\u0035\u0020\u0020\u006a\u0022\u0023\u006b\u0023\u0021\u0037\u0023\u0023\u0069\u0068\u0023\u0023\u0023\u0034\u0075\u0070\u0020\u006a\u0060\u0025\u0023\u0023\u0037\u0023

  While the script cannot be saved to the cloud (there is no response), the project can be saved to a local file. In the .m5f2 project file, the relevant saved value is:

  <field name=\"VAR\" id=\"usN/c#7FD;q`ieH|V~5K\">sTestString</field><value name=\"VALUE\"><block type=\"text\" id=\"ap8ErHQgaUZ`^d-W-%_I\"><field name=\"TEXT\">OL,1,\u001bR\u001bW7###jp0 55 j\"#k#!7##ih###4up j`%##7#</field></block></value>

  This local file cannot then by imported again into UiFlow2, giving an "error opening file" message:

  2dca212f-b98c-4d77-ba73-8801f4396409-image.png

  I believe the problem is related to some unicode characters rather than the " character.