Digital Car ID Signal
Beneath the Scalextric car, situated just behind the car's slot guide is an Infra-Red LED (Light Emitting Diode). This LED is constantly broadcasting the car's unique ID and lane-changer command downwards to the track. Mounted into the track at strategic locations is an Infra-Red detector which receives the car's ID signal and decode it for use. The car id and lane change status is sent over 2,200 times per second.
The decoding is for two purposes
- Lane changing command (change lane or not)
- Car number (#1..#6)
The car constantly generates the appropriate signal, based upon its programmed Car ID and the status of the Lane Change button located on the hand controller. As the car passes over the track detector, circuitry associated with the detector triggers the desired response.