SCP-3 handle firmware for oXigen systems and analog cartridges (standard from the factory)

SCP3 optional Power Module - unified firmware for oXigen and Scalextric ARC

Firmware for digital cartridge

Firmware to turn the SCP-3 into a Scalextric ARC controller

Original Hornby firmware for the ARC PRO Controller (if you need to revert it to ARC AIR/PRO)

ARC PRO controller firmware for oXigen systems (turns ARC PRO handle into an O2 controller)

Latest firmware for the PC USB Dongle - right click to download and save