Schematics > Motor, light and power control > Knightrider lights for model cars
Knightrider lights for model carsThis 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 |
by Oscar den Uijl, odu@xs4all.nl
Title: Knightrider lights for model cars
Source: www.xs4all.nl/~odu/
Published on: 2005-02-03
Reads: 329
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