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A low bandwidth, low-power short-range wireless protocol typically used for personal area networks that operates on 2.4GHZ-2.485GHZ.

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vikas Nagpal
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vikas Nagpal
Asked: December 28, 2022In:
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Hello, I presently research and suppose about the possibilities to initial flash and later update the firmware on an ESP32 based product from the price point, I would like to use an ESP32-C3 and the built-in USB port to flash & ...Read more

Hello,

I presently research and suppose about the possibilities to initial flash and later update the firmware on an ESP32 based product from the price point, I would like to use an ESP32-C3 and the built-in USB port to flash & update the firmware.
That indeed would save the USB2UART chip.
I can’t go with the S2 as I need WiFi and Bluetooth.

But I didn’t find any tutorial/extended info if/how this is possible. The only things I found

  • DFU — Using the native USB on ESP32-S2 for flashing the firmware
  • Nearly was mentioned that C3 USB can be used in CDC mode
  • CircuitPython on Espressif SoCs

so I currently don’t know if it’s possible. I hope anybody can shine some light on this for me;-)

Thank and Regards

Vikas

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bluetoothesp32espressiffirmwareusbusb2uartwifi
  1. ashishgawade

    Hello, Thanks for reaching out to Volt Engineering Community. The C3 has a USB device that effectively replaces an external USB- serial and USB- JTAG chip; you should be suitable to use that to flash updates. Please let us know if it answers your question. Regards, Ashish

    Hello,

    Thanks for reaching out to Volt Engineering Community.

    The C3 has a USB device that effectively replaces an external USB- serial and USB- JTAG chip; you should be suitable to use that to flash updates.

    Please let us know if it answers your question.

    Regards,

    Ashish

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vikas Nagpal
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vikas Nagpal
Asked: October 11, 2022In:
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Hello everyone, Is it possible to pair an Apple Magic Trackpad( 1. gen-> Bluetooth Classic2.0) with the ESP32? How simple is that? Can I be sure it will work? I’m asking as I had a hard time changing any projects doing similar ...Read more

Hello everyone,

Is it possible to pair an Apple Magic Trackpad( 1. gen-> Bluetooth Classic2.0) with the ESP32? How simple is that? Can I be sure it will work?

I’m asking as I had a hard time changing any projects doing similar effects, even with Bluetooth keyboards.

Thank you in advance!

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bluetoothconnectivityesp32keyboardswireless
  1. Alex thomas

    Try using a cell phone app like" Bluetooth Terminal HC- 05" If you can pair and receive data with this from the trackpad also you can do it with an ESP32. It's my goto App for looking at data streams from Bluetooth.

    Try using a cell phone app like” Bluetooth Terminal HC- 05″
    If you can pair and receive data with this from the trackpad also you can do it with an ESP32.
    It’s my goto App for looking at data streams from Bluetooth.

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