USBSerial not Recognized - Custom ESP32-S3 board

[crimsonbaba]

Hello,

I am trying to utilize the USBSerial command on a custom ESP32-S3 board that I made however my ArduinoIDE is not recognizing the existence of USBSerial. I've tested previous version of the esp32 library, but when I go back to far I get some driver errors. I am still able to upload to the board and control other peripherals, but I can't communicate via the Serial Monitor

System Information
MacOS (Silicone M3)
Arduino IDE 2.3.4
esp32 library 3.1.1 -> 2.0.9

Code:

#include <FastLED.h>

#define LED_PIN 2
#define NUM_LEDS 1
#define AIN1 6
#define AIN2 7
#define BIN1 8
#define BIN2 9
CRGB led[NUM_LEDS];

void setup() {
  delay(1000);
  
  USBSerial.begin(9600);

}

void loop() {


}

Error Message:

/Users/trhussain/Documents/Arduino/sketch_jan11a/sketch_jan11a.ino: In function 'void setup()':
/Users/trhussain/Documents/Arduino/sketch_jan11a/sketch_jan11a.ino:15:3: error: 'USBSerial' was not declared in this scope; did you mean 'Serial'?
   15 |   USBSerial.begin(9600);
      |   ^~~~~~~~~
      |   Serial

exit status 1

Compilation error: 'USBSerial' was not declared in this scope; did you mean 'Serial'? 

Schematic files (pretty sure its nothing with this, I can control the board peripherals fine, but added for posterity sake)

ArduinoIDE Configuration

Let me know if any additional information is required, thanks!

[sonofcy]

I don't understand what your issue is, the error msg tells you the USBSerial library is missing or you are using the wrong board perhaps, or did you actually mean Serial?

[crimsonbaba]

No I meant USBSerial, its a way to use the USB as a serial interface so you don't need the FTDI converter (to my understanding)

Here is the USBSerial.ino file from espressif

espressif/arduino-esp32/blob/master/libraries/USB/examples/USBSerial/USBSerial.ino

[sonofcy]

I use Serial all the time with the USB, just try it, change USBSerial to Serial.

[crimsonbaba]

USBSerial (S2,S3) like FTDI? · espressif/arduino-esp32 · Discussion #6865

Here is a discussion thread that seems to have a similar issue with mine(?)

[crimsonbaba]

Serial with USB doesnt work for me because (I believe can be wrong) since most boards have a built in FTDI programmer into them, this is a custom board so I need to use USBSerial

[crimsonbaba]

SOLVED:

I change by ArduinoIDE Settings to the following

[sonofcy]

Finally, yes just use the Serial port that happens to be connected via USB. Perfectly NORMAL.