what pins do I use with the arduino Micro and a serial LCD? - Displays - Arduino Forum
Pro Micro & Fio V3 Hookup Guide - SparkFun Learn
Amazon.com: ACEIRMC Pro Micro for Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible for Pro Micro Serial Connection with arduino Pin Header (3pcs) : Electronics
Pro Micro pinout
Amazon.com: HiLetgo 3pcs Pro Micro Atmega32U4 5V 16MHz Bootloadered IDE Micro USB Pro Micro Development Board Microcontroller Compatible to Arduino Pro Micro Serial Connection with Pin Header : Electronics
Introduction to Arduino Micro - The Engineering Projects