Turn your ProMicro into a USB Keyboard/Mouse - SparkFun Electronics
Arduino Micro - USB Joystick - YouTube
using 74HC165 to allow 32 buttons for Joystick library - Project Guidance - Arduino Forum
Problems with Arduino Pro Micro sketch - Sensors - Arduino Forum
Pro Micro Arduino with 6 pots, 2 encoder w/click, 35 tactile buttons, 2 latching 3 pod switches (On-Off-On). Can someone check my wiring if this is possible and correct? Next challenge would