Arduino Pro Micro, Leonardo, and Teensy 2.0 (based on ATmega32U4). Capacity: Up to 8 axes and 128 buttons per board.
Since the original project site is often down, you can find the most reliable "updated" archives (which include the configurator and firmware files) at these locations: MMjoy Project English Wiki (GitHub) mmjoy2 download updated
A widely cited updated link for the 20161125 build can be found on Google Drive as discussed in the r/HotasDIY community . Key Features Arduino Pro Micro, Leonardo, and Teensy 2
MMJoy2 is a free firmware and configuration suite that bypasses traditional Arduino programming. It turns a micro-controller into a native Windows HID device (plug-and-play joystick). Key Features MMJoy2 is a free firmware and
MMJoy2 Download Updated: A Comprehensive Review
Added the ability for POV hats to function across different shift layers. or a list of compatible magnetic sensors for a high-precision joystick build? DIY: Part 1 USB Controller using MMJOY2 and Arduino board
Before downloading, ensure your setup meets the unofficial updated requirements for modern Windows: