Pro Micro: Arduino Pinout - tinkerBOY

Arduino pinout guide for the Pro Micro.

How To Wire The Micro USB 4-Wire Data Cable - tinkerBOY

Game Boy Controller v1.2 PCB [6-Button version] for Game Boy Zero / 3 - tinkerBOY

Game Boy Controller v1.1 PCB for Game Boy Zero / 3 - tinkerBOY

Arduino Pro Micro Pinout: Connection Pins for the ATmega32U4-Based Microcontroller

Arduino Pro Mini Pinout and Specification

Pro Micro 5V / 16MHz - ProtoSupplies

Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

XT/AT/PS2/Terminal to USB Converter with NKRO

Pro Micro & Fio V3 Hookup Guide - SparkFun Learn

What are the Arduino micro and Pro micro board?

Pro Micro & Fio V3 Hookup Guide - SparkFun Learn