Hi, I am using exactly this chip in a PCB for a project. The thing is that I wanted to program it using Arduino IDE but then I realized about all that bootloader things that must be done. This way, I burned the bootloader successfully, but anyway, it doesn't allow me to upload code anymore. I am u…

In the IDE, menu sketch -> upload using programmer.

Uploading code to ATMega328P-AU

ncls2 August 24, 2021, 2:41pm 3

Thank you for your kind answer. Here is the scheme.