Can I use ATmega328P without Arduino just using it in breadboard for projects? - Quora
DIY Arduino Board
UNO R3 DIY Module ATmega328P Programmer Development Board Built in UNO Bootloader for Arduino UNO R3|board board|board diyboard for arduino - AliExpress
Build Your Own Arduino & Bootload an ATmega Microcontroller
Make Your Own Arduino Board by using Atemga328 IC – A DIY Project
Make Your Own Arduino Board | Atmega168/328 IC | Mert Arduino and Tech - YouTube
From Arduino to ATmega328 | DroneBot Workshop
Programming ATmega328P Barebone | ezContents blog
Technoblogy - Using an ATmega328 without a crystal