NOTE: THE TWO LEDS CAN BE CONNECTED VIA A SINGLE RESISTOR RATHER THAN TWO SEPARATE RESISTORS
This is a modification to a circuit in a previous video after questions I received.
Link to previous video: https://youtu.be/SKFaFLE0T1w
Australian T Trak website
https://sites.google.com/view/australian-t-trak
T Trak, Ntrak website
https://www.ntrak.org
Kato Unitrack website
https://www.unitrack-kato.com/