Recommended · for beginners
Arduino Uno to ATmega328 - Shrinking your Arduino Projects
Why people recommend it
DroneBot Workshop shows how to move an Arduino project onto a bare ATmega328 on a breadboard and program it; recommended for shrinking projects and cutting battery drain.
Watch for: programmer wiring and board selection
In their words
Here is an amazing video from our friend Bill from dronebotworkshop giving you the concept of that [video] It is for arduino though.
Jose Areas on electronics.stackexchange.com, Apr 2021. CC BY-SA.
I've followed this YouTube Tutorial to build this.
waas1919 on arduino.stackexchange.com, Aug 2019. CC BY-SA.
This video explains in more detail how to upload the code to the chip.
Tono Nam on arduino.stackexchange.com, May 2020. CC BY-SA.