The Biggest Boot Loader

Firmware Updater For The Biggest Foot

Plug The Biggest Foot in to Eurorack power via ribbon cable
Plug a USB-C cable in to The Biggest Boot sub-board, and a desktop computer running Chrome.
Click the Connect button.
Select the "USB to UART Bridge Controller". If you don't see this option listed, try a different USB-C cable.
Choose to erase & flash.

5.0.0 (July 26, 2025)

This update focused mainly on bug fixes that affected production units.

Changed: Hold down SHIFT while powering on to pair your balance board to The Biggest Foot.
Changed: Press the front button to connect your balance board after pairing at least once.
Fixed: Balance board will automatically reconnect if interrupted.
Fixed: Balance board will be rejected from connection if it is not sending weight information. Press front button to try again without the need to reboot the module.
Fixed: The Boot button will reset the module and be able to connect again using the auto reconnect and auto rejection fixes.
Added: Version number of firmware displays on boot. (Requested by Aard!)
Fixed: One-shot playback jumped to random position at the end.
Fixed: Pressing Record after pressing Trigger would not record.
Fixed: Calibration could be completed on low battery causing a crash.
Fixed: Calibration would change user weight even if not completed.
Changed: Lefty orbits around the center at boot.
Changed: Pressing trig randomizes the orbit center just like CV triggers.
Known Issue: There is now no way to bring Lefty back to center.

The first production release