石榴姐

32u2/4 line brush board line brush bootloader with HEX

Overview

I bought some 32u4 to use as a keyboard master, but the firmware couldn't be flashed via USB, so I drew this board and reburned the bottom layer (added by BOOTLOADER 20211129), and I was able to flash the firmware normally with USB (added by USBDFU 20211129). Drawn a long time ago Yes, so I can’t remember the details. You can use it and pick it up yourself.

32U2 flash Arduino-usbdfu.hex

32U4 flash Leonardo-prod-firmware-2012-04-26.hex

Design Files

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Update:2025-06-24 13:39:50

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