@aitech doesn’t work but I have replaced the second boot screen, yes there are 2 boot screens. The primary boot screen is controlled by the DTB file and need recompiling, the second is in another location.
The guide will be in my CoreMP135 Update document closer to Christmas from the FB groupe

Hello @BertM

I get the same error using platform 6.4.0 which supports Arduino 2.0.11.
You can see the used platform / Arduino version in your log:

PLATFORM: Espressif 32 (6.4.0) > M5Stack StampS3
framework-arduinoespressif32 @ 3.20011.230801 (2.0.11)

Try modifying the platform parameter to:

platform = espressif32@6.9.0 ;  6.9.0 - 2.0.17

This should download platform version 6.9.0 with Arduino version 2.0.17 and with that the error is gone for me.

Thanks
Felix

@Remco Does L1, L2 work instead of LED0, LED1?
I'm sure that LED0 and LED1 are already in use by Micropython which is what UIFlow is built on.

@tdahbura You cant use it on port B because the port has one hardware fixed output pin and one hardware fixed input pin.
Port C is attached to dedicated UART pins.
For port B you need the PortB version of the sensor or use a the PaHub .

Hello @laursena

unfortunately I don't know the answer to your question about the power consumption and if M5Core2 can handle it.

However what I can tell you is that you do not necessarily need the PaHubs. The M5Stack I2C weight measurement units allow for the I2C address to be modified - so you could give each unit its own I2C address and simply connect them in parallel.

Thanks
Felix

Hello @ScheduleDisplay

I am glad to hear it works for you now.

Yes, the battery will drain much faster when using ESP32 deep sleep or light sleep compared to a full shutdown.

You can find the currents for all three modes here.

Thanks
Felix

Hello @ScheduleDisplay

in order to use ESP32 deep sleep ESP32 and external power to the Grove ports need to stay on. Grove power is required for the pull-up resistors in the button unit. (Internal pull-up is too weak.)

I can get your sketch to work if I comment the following lines:

//    M5.shutdown();                    // Shutdown the display and peripherals

//    M5.disableEXTPower();             // Disable external power supply

and adding this line:

gpio_hold_dis((gpio_num_t)M5EPD_EXT_PWR_EN_PIN);

after the other gpio_hold_dis() line.

Plus adding this line:

gpio_hold_en((gpio_num_t)M5EPD_EXT_PWR_EN_PIN);

after the other gpio_hold_en() line.

Thanks
Felix

Hello @HappyUser

have you tried to connect the RFID2 to another channel than 0? Does it show up then?

Do you have other I2C units which you could connect to any channel just to see if they get picked up?

For a scan an I2C device doesn't need to be initialized.

Thanks
Felix

Hello @SB12345

ok, have you tried to only connect one TOF4m to port C? Does that work?

Thanks
Felix

Hello @ScheduleDisplay

maybe below lines are the issue?

pinMode(WAKEUP_PIN_26, INPUT_PULLUP);  // Enable internal pull-up for stability
esp_sleep_enable_ext0_wakeup((gpio_num_t)WAKEUP_PIN_33, LOW);  // Wake when pin goes LOW

you enable wakeup on GPIO33 while the pullup is set for GPIO26.

Thanks
Felix