@easytarget thank you. That is indeed an option. In my experience not to much work to get a Lora module working. We have a number of them in the field. But we would like the tab5 not become thicker as it is. We are now considering to place an Heltec Lora inside. Maybe that could work. Regards.

Thank you! I was not precise enough in my earlier post: I had already found the code to detect the connected headphones, the part that I was missing was how to turn off the speaker as soon as the headphones are detected (and if it was possible to turn it off independently from the speaker). Thanks to your comment and some poking around on GitHub I realized that I overlooked the GPIO extension. There is a SPK_EN pin there (Pin 1 on the first extension) that connects to the onboard amplifier and, according to its datasheet, can be used to turn the amplifier off. Since the headphones are not connected to the amplifier, this should mute the speaker without influencing the headphones - I haven't tried it yet, but that's my guess based on the schematics.

Hi @MortenComadan ; you don't mention what your project is based on for code; Arduino/ESP-IDF/MicroPython/UFlow2 etc.. For the tools where Expressif have got involved the support should be there already. The C6 co-processor gets a standard firmware (that talks via QSPI to the P4) and the P4 IDF libraries know how to use this. What I'm unsure about is exactly which features are actually implemented in the ESP IDF; I want to use bluetooth audio sink features.. eventually. If (like me) you are into MicroPython then good news. V1.27.0 was released a couple of days ago and has official P4 support: https://github.com/micropython/micropython/releases/tag/v1.27.0 UFlow2 is based on an older micropython version; I'm not sure how much of the P4 stuff they may have backported. I only got my Tab5 today, I'm going to be installing micropython 1.27 asap.

@robski Make sure the USB-C port has enough power to meet the Tab 5's power requirements. Try different USB ports, as some may be underpowered. Also, consider if too many devices are hogging power or if the port is under-spec for the Tab5.

Dear Simone, I also stumbled upon this issue. I finally figured out that the m5stack Unit Flashlight module has two operation modes. It defaults to FLASH which is controlled by some custom logic which can be found here: https://github.com/m5stack/M5Unit-FlashLight/blob/main/SetFlashTimeAndBrightness/SetFlashTimeAndBrightness.ino But you can open the device and switch it to TORCH mode using a physical switch inside. Then you can use PWM to control it. The details regarding the operation modes and PWM can be found in the specs starting at page 12: https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/datasheet/unit/FlashLight/FLASHLEDDRIVER_2019-07-01.PDF This will hopefully help others stumbling upon this. Best regards

@thatonecheetah I have exactly the same issue. Did you find a solution to that? would love to know. thank you

Hello felmue, When PLC was disconnected the power supply. time.tm_wday cannot remember. Other are correct. But PLC got the power supply. It worked normally as below code. char Text[100]; static struct tm time; char DayOfWeek[7][10] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}; char MonthOfYear[12][4] = {"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"}; sprintf(Text, "%s, %d %s %d %02d:%02d:%02d", DayOfWeek[time.tm_wday], time.tm_mday, MonthOfYear[time.tm_mon], time.tm_year + 1902, time.tm_hour, time.tm_min, time.tm_sec); Serial.print(Text); Result Wednesday, 19 Nov 2025 16:38:35 Thank you

There something interesting. DepthAnything can be done with THIS In OpenAI API, I think Mr. uzuki_aoba already post in Qiita. In the CMD that renew the model list got some TYPO "sudo systemctrl restart llm-openai-api" I try LLM(qwen3), Whisper(CN), MeloTTS(CN), VLM(InternVL), they are work great with StackFlow that I can call by another computer in my house. But I think it something funny when I install llm-model-internVL. In apt I called is internvl____axcl, but after install the folder name came to internvl____AX650. (In the end, I change the folder name manually...)

you can disable sound and adjust timer, 60s for reset is default it does flash black like many ink displays

Using this example is fine. https://github.com/espressif/esp-idf/tree/master/examples/peripherals/usb/device/tusb_msc sdkconfig.defaults # This file was generated using idf.py save-defconfig. It can be edited manually. # Espressif IoT Development Framework (ESP-IDF) 5.5.1 Project Minimal Configuration # CONFIG_IDF_TARGET="esp32p4" CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y CONFIG_PARTITION_TABLE_CUSTOM=y CONFIG_EXAMPLE_STORAGE_MEDIA_SDMMC=y CONFIG_EXAMPLE_SD_PWR_CTRL_LDO_INTERNAL_IO=n CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG=y CONFIG_FATFS_LFN_HEAP=y CONFIG_WL_SECTOR_SIZE_512=y CONFIG_WL_SECTOR_MODE_PERF=y CONFIG_TINYUSB_MSC_ENABLED=y

general rule for RS485 bus is the same baudrate and parity on all slave devices and each device with different slave ID, max 32 devices on one chain

It sounds like the M5 Tough’s battery issues were likely caused by a polarity or connector mismatch—there’s no strict standard for that battery plug, so reversing positive and negative can easily overheat or damage the board. Before powering up again, double-check the connector pinout with a multimeter, ensure your LiPo has proper protection circuitry and matches the expected 3.7–4.2 V range, and avoid using USB and battery power simultaneously until you confirm how the board switches between them. A proper match should let the Tough run smoothly on battery without overheating or shutting down.

Hello @scroggyg I modified my test program to use internal I2C, did a i2c scan w/o ExtIO2 connected and with it - there seems to be no i2c address conflict. For me ExtIO2 works either connected to port A or to internal. What I noticed though is that I need to wait (after powering up M5Tab5) for the UIFlow2 screen fully being loaded before running the program. If I do not wait long enough I occasionally see a crash too. Thanks Felix