Slot car track voltage tester

HO Slot Car Racing circuit slot car Ricciardo laps the Red Bull Ring in a slot car Join the Formula One star on a tour around our scale model of the Austrian Grand Prix circuit circuit slot car I am making a digital slot car controller After maybe an hour of track time CircuitLab is an in-browser schematic capture and circuit simulation

circuit slot slot car track ×, 1 The analogWrite() command gives us a PWM signal which is amplified by a transistor circuit and led to the track