App Developer connect to ESP32 S3 with USB

[stefan.erni]

Hi to All

One more question. With purchased hardware with an ESP32-S3, I have to press the reset button for 5 seconds to flash the firmware.
Then press the reset button again.
The programme runs.
Now I want a connection with the USB C connector to the computer.
A serial device com15 and also an USB jtag/serial debug unit appear in the device manager of the computer.

but I can't make a connection with the App Developper with Com 15
and I don't have a pin for the interface in the firmware either.

Is this connection possible with USB component ?

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[Steve-Matrix]

I think you will need to use the Serial Port component and not the USB component.

[stefan.erni]

Hi Steve

I suspect it's not that simple.
The USB pins go directly to the ESP32 C3. So I can't use an Rx/TX pin. Many ESP32 boards have a USB driver that goes from the USB connector to the UART pin.

What about BLE Uart? Is BLE already possible to test?

[Steve-Matrix]

Sorry, I'm not familiar with that device. You should be able to communicate to COM15 from a PC Developer app using a Serial Port component. But I don't know how you would access the same serial connection from within Embedded code in the device itself.

[BenR]

Please can you send us a link to the specific board you're using.

Looks for devices like this to do comms back to the PC would require a USB component. Might not be too hard thanks to the IDF so I'll get it on the list.

[stefan.erni]

Hi ben

Link to the specific board:

https://docs.m5stack.com/en/core/AtomS3

Link to a shop:
https://www.digikey.ch/de/products/deta ... 3/17751546

Demo with display (working in SPI softwaremode)

S3_24_1_demo.fcfx

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[BenR]

That looks great, are you able to program the screen? Do we need a new component for it?

I've just bought myself one and also got a couple more M5 boards. Unfortunatley they look like they might take a while to get here.

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[stefan.erni]

Hi Ben

For the Atom S3 the component gLCD_ST7789V1 is working to display text.

The Atom matrix has a 5x5 LED Matrix and it's working with FC WS2812C

For the M5 Dial knob I think an additional component for GC9A01A Display driver is necessary.
The display is also used by other manufacturers

A very good feature of these M5 stack modules is that the IMU MPU6886 is supported von FC