ESP32 C3 and Serial Monitor Arduino IDE

Development Tools IDE 2.x
3

Hi @lhops. The ESP32-C3 is unique compared to other Arduino boards in that you must configure Arduino IDE in order to enable the board to output to the USB CDC serial port connection on the computer.

Please try this:

  1. Select Tools > USB CDC On Boot > Enabled from the Arduino IDE menus.
  2. Upload your sketch to your ESP32-C3 board once more.

Now check Serial Monitor again, you should see the output from the board as expected.