Cores

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Core2 for AWS

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This error usually happens when your project path includes spaces (e.g., /Users/Your Name/Documents/...). Try moving your project to a folder without spaces in the path, like /Users/YourName/Projects/M5StackAWS. Then re-open the project in VS Code. That should fix the issue without needing to modify the ini file.
M5Stack Fire

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お世話になります。

現在、M5Stack FIRE に関して次の2つのバージョンがあります。
　　1) V2.6 (USBチップ: CH9102F) ※BALA2 FIREとして購入したもの
　　2) V2.7 (USBチップ: CH9102F)
2)のV2.7については、Windows11(24H2)で問題なくUSBシリアルポート接続
認識ができていますが、同一環境(PC環境、USB接続環境、USBケーブル等)
で、1)のV2.6について、デバイスマネージャでCOMポートとして認識できず
困っています。

様々なUSB環境(ハブ、ケーブル等)で試していますが、一瞬接続できたことも
過去にありましたが、現状は、ことごとく正しく認識されません。

もし、同様のトラブルに遭遇された方で、アドバイスなどがございましたら
よろしくお願いします。

Ruri
M5stack Grey

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Burn of UIFlow2 (v2.2.4-16MB) to M5Core-Grey using M5Burner loads stub but not full firmware. Burn of UIFlow_M5GO (same M5Burner) works fine. The UIFlow2 burn results in inoperable M5GO even though final message says 'Burn Successfully, click here to return'.

Here is screen shot of output from Burn:

--chip auto --port /dev/tty.usbserial-01DB92E6 --baud 1500000 --before default_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x9000 /Applications/M5Burner.app/Contents/Resources/packages/tmp/uiflow2-cfg.bin
esptool.py v4.7-dev
Serial port /dev/tty.usbserial-01DB92E6
Connecting...
.

Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting...
.

Detecting chip type...
ESP32
Chip is ESP32-D0WDQ6 (revision v1.0)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 98:f4:ab:6c:dc:00
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 1500000
Changed.
Configuring flash size...
Auto-detected Flash size: 16MB
Flash will be erased from 0x00009000 to 0x0000efff...
Compressed 24576 bytes to 475...
Writing at 0x00009000... (100 %)
Wrote 24576 bytes (475 compressed) at 0x00009000 in 0.2 seconds (effective 1153.6 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
M5 Stick/StickC

M5Stack's little brother. Discuss M5 Stick hardware and software related issues here

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1.6k
Posts

W

@ajb2k3 Thanks for the reply. Maybe I'm misunderstanding what the Vbus is supposed to be. I thought it was the power coming in from the USB port. Even if there is a trickle of stuff draining the battery, there shouldn't be any input from USB. I suppose something is just leaking over somehow.
M5GO

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I just got the M5GO Kit, and I'm trying to make a Voice Assistant. For some reasons, the Demo of the kit made me think that accessing the microphone is easy. But, after hours of finding, it seems that there is no library or support for the kit to record audio. Does anyone have any resource regarding this?
FACES Kit

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Problem:

Der Schrittmotor funktioniert nur korrekt in der Z-Achse bei normalen (langsamen) Drehgeschwindigkeiten.
Beim Versuch, die X- und Y-Achsen zu verwenden, funktioniert der Motor nur, wenn ich die Vorschubgeschwindigkeiten auf das 10-fache oder höher erhöhe.
Wenn ich versuche, die Adresse auf 0x71 zu ändern, wird das Modul nicht erkannt.
M5Stick V

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131
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To fix incorrect timestamps in V-Training photos, update your device's firmware, check and set the RTC (sync via Wi-Fi or manually), and reconfigure the app. Also, format the SD card to FAT32. If issues persist, try a factory reset.
Core 2

For Topics related to the Core 2

327
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1.4k
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It looks like PlatformIO is still uploading your filesystem as SPIFFS despite setting board_build.filesystem = littlefs. This happens because the default partition table might not reserve space for LittleFS. Try creating a custom partition table that supports LittleFS and specify it in platformio.ini with board_build.partitions. Also, ensure your LittleFS_esp32 library is compatible with M5Core2. Without proper partitioning, mounting fails with corrupted directory errors like yours. Let me know if you want help generating a suitable partition CSV file!

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• • cryptospok

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Deep Sleep CoreS3

• • Bipman

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Cores3 voltage problem

• • Bipman

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@felmue That was it thanks! All working now.

Bipman
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Boat computer with Bareboat Necessities OS on m5stack CoreMP135

• • mgrouch

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The latest image now has flutter-ui boatinstrument interface on hdmi port.

SignalK is available via web ui. As well as FreeboardSK and KIP dashboard.

After two reboots SD card partition is resized to max available space.

NMEA 2000 interface is ready. All you need to do is connect two wires.

Most of USB gps devices are recognized on plugging in automatically.

Image includes Victron Web UI as well.

Console access is available via USB-C port at
115200 bauds.

Thanks!
J

CoreS3 with USB Module v1.2

• • jaysom

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@felmue

Thank you so much for your help, I’ll give it a try and report back :)
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M5 Capsule HY-2.0 as power source

• • daniweb

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Is this correct?
934076f9-0958-4a54-a5da-4679796a8cb2-image.png
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CoreMP135 screen saver sleep for built in LCD

• • mgrouch

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@ajb2k3 said in CoreMP135 screen saver sleep for built in LCD:

@mgrouch You need to create a program for that

I do not see how. There are examples for displaying things on ILI9342C
using framebuffer and LVGL.
I do not see how to turn off backlight on ILI9342C. Is there some code example? Or command line utility with the code to control brightness? I was able to code that on m5stack tough on esp32 which has same ILI9342C.

Also how to wake up screen by touch?
I guess with brightness off touch functions are still there. So I need example of code listening for touch event and controlling backlight (voltage of it?) on ILI9342C.

I need some help.
Thanks
M

Does coremp135 have hardware 9 data bit uart?

• • mgrouch

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coremp135 memory size

• • mgrouch

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Hello @mgrouch

well, you might notice the lowercase b in Gb which means it's 4 Gigabit (not 4 GigaByte). 1 byte equals 8 bits. So you'll need to divide the number by 8 if you want to convert Gigabit to GigaByte.
4'000 Mb / 8 = 500 MB
So about 462 MB (MegaByte) free seems plausible.

Thanks
Felix
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m5 x timer camera battery

• • infcted

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M5CoreS3 rebooting issue with PSRAM

• • ralphjy

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I can share a few thoughts on your PSRAM issue:
Have you tried using an older version of the M5CoreS3 library? Sometimes newer versions can introduce compatibility issues. Double-check your board settings in the Arduino IDE. Make sure you've selected the correct board and PSRAM option. Try increasing the PSRAM size in your sketch if you're using a lot of memory. If possible, test with a different M5CoreS3 unit to rule out hardware issues. Consider posting your code snippet if the issue persists. Sometimes the problem can be in how the PSRAM is being accessed in the sketch.
Keep in mind that PSRAM errors can be tricky to debug.
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Poweroff command is Fail on M5CoreMP135.

• • nnn

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This issue has been resolved in the latest version, see issue.
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CoreS3 touch with Arduino

• • jaysom

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Hello @Fusion-Automate

have you tried any of the official M5CoreS3 examples? Do any of them work?

Edit: It looks like M5Stack moved M5CoreS3 to use M5Unified library - I've adapted my touch example. Thank you for reporting.

Thanks
Felix
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Port.C of boot serial console is IO inverted on CoreMP135.

• • nnn

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This discussion will be continued below
https://github.com/m5stack/CoreMP135_buildroot-external-st/issues/2
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Can't push software to CoreInk

• • HansMo

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@ajb2k3 Thanks, I got that now. I figured out, that I have selected the wrong server. Still my program is not showing anywhere.
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• • Hun7er

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M5paper touchscreen wakeup from sleep

• • Joonas

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Thank you, all clear now, so M5.shutdown(600) will run again the entire setup. Great!

Now M5.shutdown(600) it is run actually every 9 minutes and M5.shutdown(3600*11) every 2 and almost a half hour, not 11 hours.

In order to avoid charging problems I use:

if (voltage<4150) {
M5.shutdown(shutdownDuration);
}

otherwise it restarts every 5 seconds when charging. Is there any other solution when charging?
The battery only charges to max 4100 and is dead at 3410: just bought a new M5Paper a week ago.

float voltage = M5.getBatteryVoltage();
O

Running Linux on Core3 S3 - how to enable WiFi

• • oneline

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M5paper power consumption in light sleep

• • volker

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@volker 6 days on deep.sleep. How about light.sleep? I just bought mine, any advice? I only want to display a picture via internet..
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Simple fix when upload fails.

• • appie

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For the M5FIre do this
For the m5stack fire you need to follow these steps
Remove all modules, leaving only the host Then try to lower the baud rate when burning If there are wires, you can short-circuit G0-GND before powering on the device and then power on again.!
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