This repository should be the GOTO, when starting a new project. It helps setting up the basics for the hardware components.
https://www.youtube.com/watch?v=6rmErwU5E-k
If you want to use only the chip, you'll need to:
- burn a bootloader beforehand (https://www.circuito.io/blog/atmega328p-bootloader/)
- add capacitors(22pF), oscillator(16MHz), resistor(10K), and diagrams/at-mega-328-standalone.png