Hello! I recently made a custom ESP32-S3 board that uses USB to flash code so I could skip needing a USB>UART bridge.
Is there any way I could still Serial.print() to my computer just using USB? Just connect TX & RX from the uController to where they would'be gone on the USB-C connector?
Thanks!
I guess you have to use the right settings in the Tools menu. Uno R4 has the S3 as 'FTDI' and the S3 has Arduino sketch as a firmware. It has no problem to print to USB. It uses USBSerial as the 'Serial' object
Oh awesome! I will try it. Thanks!
There are many ESP32-S3 boards that only expose the USB OTG port. For example, Adafruit QT PY ESP32-S3, M5Stack AtomS3, etc. Arduino upload and Serial console work on the USB OTG port.
On the board options menu select USB CDC ACM On Boot: Enable.
For anyone still looking, USBSerial.print works but if you try to upload anything afterwards using the same USB port it doesn't work and locks you out with:
A fatal error occurred: No serial data received.
Failed uploading: uploading error: exit status 2
I'll update with solution if I can find it.
It works with USBSerial if and only if you add a 1s delay in the loop. Otherwise you get locked out by what I'm guessing is USB noise