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I couldn't find any library to use an "old" ESP32 (not the new ESP32-S2) as an HID connected physicaly to the Usb port (not over BLE pairing) to send keystrokes to the PC ...
Is there any solution? Any code example, so far?
Thanks in advance!
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  • it is unclear what you are asking ... MIDI is used for musical instruments
    – jsotola
    Dec 29 '20 at 7:48
  • Esp32 doesn't have usb.
    – Majenko
    Dec 29 '20 at 9:50
  • @jsotola i am trying to send keystrokes to the PC by plugging the (old) ESP32 on to the Usb port Dec 29 '20 at 11:03
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The ESP32 doesn't have USB. You can't do USB communication. All it has is (like the UNO) a USB to UART interface chip. Unlike the UNO this is not programmable (more like a cheap Chinese knock-off UNO clone in that respect).

You would need to couple it with a microcontroller that has USB and program hat to be your USB interface and communicate with it over some other communication medium, such as UART or I2C.

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