I try to upload simple Blink code through Arduino I get this error message:
An error occurred while uploading the sketch
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
I have tried most common fixes I have seen online, but nothing seems to work.
Got this a number of times : did you press the 0-button when it tries to connect to upload? Also make sure the serial monitor is closed as that can impact as well.
paulvha: did you press the 0-button when it tries to connect to upload?
Hitting the 0 pin fixed this for me. Thank you!