Firmware
This page has all the latest firmware for most of my products. To upload the firmware, you will need a Windows based computer and the ATmega32U4 Uploader tool I have made (instructions included in the download).
Download ATmega32U4 Uploader V1.0
CD32/C= controller to USB adapter (1-port)
https://daemonbite.com/files/linked/atmega/cd32-1port-usb-adapter-v1.1.hex
https://daemonbite.com/files/linked/atmega/cd32-1port-usb-adapter-changelog.txt
NeoGeo controller to USB adapter (1-port)
https://daemonbite.com/files/linked/atmega/neogeo-1port-usb-adapter-v1.0.hex
https://daemonbite.com/files/linked/atmega/neogeo-1port-usb-adapter-v1.0-debounce.hex
(The latter one has debounce logic enabled, it only adds ~30µs lag)
NES controller to USB adapter (1-port)
https://daemonbite.com/files/linked/atmega/nes-1port-usb-adapter-v1.0.hex
NES controllers to USB adapter (2-ports)
https://daemonbite.com/files/linked/atmega/nes-2port-usb-adapter-v1.0.hex
SEGA/C= controller to USB adapter (1-port)
https://daemonbite.com/files/linked/atmega/sega-1port-usb-adapter-v1.1.hex
https://daemonbite.com/files/linked/atmega/sega-1port-usb-adapter-changelog.txt
SEGA/C= controllers to USB adapter (2-ports)
https://daemonbite.com/files/linked/atmega/sega-2port-usb-adapter-v1.1.hex
https://daemonbite.com/files/linked/atmega/sega-2port-usb-adapter-changelog.txt
SNES/SFC controller to USB adapter (1-port)
https://daemonbite.com/files/linked/atmega/snes-1port-usb-adapter-v1.1.hex
https://daemonbite.com/files/linked/atmega/snes-1port-usb-adapter-changelog.txt
SNES/SFC controllers to USB adapter (2-ports)
https://daemonbite.com/files/linked/atmega/snes-2port-usb-adapter-v1.1.hex
https://daemonbite.com/files/linked/atmega/snes-2port-usb-adapter-changelog.txt