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

groundFungus August 24, 2021, 2:37pm 2

We can't see how the board is wired. Post a schematic of the PCB.

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