Which (e.g., Pro Micro, Teensy) are you planning to flash? How many axes and buttons do you need to configure? Share public link
The most current and stable download for software is generally considered to be version [20160818upd1] . While a newer version, v20161101 , was released, community consensus on forums like SimHQ and SAS suggests it is bugged, and the earlier "upd1" version is preferred for stability. Download Sources
For Hall effect sensors and more complex setups, consult community wiring diagrams.
Search GitHub for the or repositories maintained by users like MMjoy . mmjoy2 download updated
Which you are using (Pro Micro, Teensy, etc.) What sensors or buttons you plan to connect The operating system version on your PC
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Virtual squadrons and hardware building communities (such as SimHQ or the IL-2 Sturmovik forums) actively host zip files of the final stable release. What is included in the updated download pack? MMJoy2Setup.exe (The primary configuration GUI) Firmware files ( .hex format for various chipsets) Shift register diagrams and layouts Device drivers for Windows recognition Supported Hardware Controllers Which (e
After successfully uploading the firmware:
The Arduino Pro Micro bootloader only stays open for several seconds. Prepare your files and mouse cursor in the MMJoy2 app before shorting the RST and GND pins. Hit the upload button immediately upon port detection. Issue 2: Axis Jitter or Unstable Readings
You will have an 8-second window. Select the newly appeared bootloader COM port in the MMJoy2 GUI and click . Step 3: Configuring Inputs and Axes While a newer version, v20161101 , was released,
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A great place to find updated configuration advice and troubleshooting help. How to Install and Use Updated MMJoy2
Click the file browser icon and load the correct .hex file from the firmware directory.
If you are still using the 2017 release, you are missing critical features. The MMJoy2 (2023-2025) includes: