If you can’t find a working Pro Micro part:
Arduino Pro Micro is a popular choice for compact electronics projects due to its small footprint and native USB support via the ATmega32U4 chip. Using it with fritzing arduino pro micro
Use this if you have a regulated 5V (or 3.3V) source. Do not put 9V here, or you'll smell smoke. Digital & Analog Pins If you can’t find a working Pro Micro
If the core part is missing or buggy, download the official SparkFun Fritzing parts: Digital & Analog Pins If the core part
Fritz Your Way to Perfection: The Arduino Pro Micro Guide The Arduino Pro Micro is a favorite for DIY keyboard builds, custom game controllers, and tiny IoT gadgets. Because of its small footprint and native USB support, it’s the go-to "brain" for compact projects.
Instead of placing the Pro Micro as the main component, use the parts from the core library to build a shield.