Knightrider lights for model c

Knightrider lights for model cars

This simple circuit drives 6 LEDs in 'Knightrider scanner mode'. Power consumpTIon depends mainly on the type of LEDs used if you use a 7555 (555 CMOS version).

Here's the circuit:

Note that VDD and GND for the ICs are not shown in the circuit drawing.

Pin-outs: (7)555 4017 1 GND 1 Q5 9 Q8 2 TRIGGER 2 Q1 10 Q4 3 OUTPUT 3 Q0 11 Q9 4 RESET 4 Q2 12 CO 5 CONTROL VOLTAGE 5 Q6 13 NOT ENABLE 6 THRESHOLD 6 Q7 14 CLK 7 DISCHARGE 7 Q3 15 RESET 8 VDD 8 GND 16 VDD