Overview | Pro Trinket as a USB HID Mouse | Adafruit Learning System
How To Program The Pro Micro (atmega32u4) As A USB Gamepad Controller With Arduino - tinkerBOY
Fixing an Arduino Pro Micro: the USB Port Came Off !! : 17 Steps - Instructables
A Mini USB Keyboard That Isn't A Keyboard | Hackaday
HID Volume Knob with Pro Micro - Arduino Project Hub
Tzt Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 For Arduino Pro Mini With 2 Row Pin Header For Leonardo Mini Usb Interface - Integrated Circuits - AliExpress