Last lap Flag (light)

is there a possibility for those using a LAP LIMITED format, to have the routine that triggers the last lap sound clip also trigger an outbound device pin? The trap is in place but do not know how or if it can be directed to a hardware pin except through software programing. A Last Lap Flag (light) option would be useful not only if sound volume is lowered but in the event of a multiple sound hierarchy. In addition would provide the ability to add another cosmetic detail into a track layout.

Why not use the Arduino protocol, this provides the information you need, and you can extract a lot more useful data as well.
My Scalextric gantry shows laps remaining using an $2 Arduino Pro compatible module from ebay