⚠️ This firmware is no longer being maintained.
I have moved on to other projects and this firmware is no longer being developed. There are many other alternatives being actively developed that may offer similar features such as:
Klipper
PrintsLeo3D Firmware
mriscoc’s Professional Firmware

Changelog

• Added BLTouch support

Known Issues

• Using Octolapse may freeze the printer, disable it if you are using Octoprint
• Z-offset values may go to a random value or NaN when editing, please double check before saving settings
• UBL BLTouch configurations don't fit H32 flash memory. You may need to disable non-essential features if you try to compile it yourself.
• Probed points counter may display 255 during mesh creation. This is a UI bug, mesh leveling should work fine.

Not everyting has been tested yet, it may contain errors or inaccuracies and may not function as well as currently released firmware.
Don't leave your printer unsupervised for extended periods of time while running this firmware.
BLTouch is not supported yet.

Download display firmware here

Only menu and heaters work. Will crash if SD card is present.
For testing purposes only.