Categories

Search in Blog

Information

Specials

Top sellers

Manufacturers

TRICOLOR LIGHT CONTROL

TRICOLOR LIGHT CONTROL

 (4)    0

  IDEA ELECTRONIC PROJECT

TRICOLOR LIGHT CONTROL

Circuit description:
An assembly for use to animate a model train layout or a road course or to illustrate a study of traffic. The clock oscillator is a conventional rectangular issued 555. The signal causes the progression of 4017 meters working in parallel. Initially, a common cell reset, R3 / C2 provides a synchronous start.
The 10 outputs of the 4017 pass successively one at each clock pulse. IC2 control fires a way IC3 and those of the cross. We obtain the following sequence:

SO SI S2 S3 S4 S5 S6 S7 S8 S9

ICI VVVVORRRRR
IC2 ERRRRVVVVO

Hence we have the passages offsets needed for traffic ... without incident or accident!

NOMENCLATURE:


R1 56 KR
R2 KR 47
R3 220 KR
R4 270 R
R5 270 5
Cl 22 MF / 16V
C2 0.1 MF LCC
C3 0.22 PF LCC
D1 to D20 1N4148
V1 and V2 Green LEDs
O1 and O2 Yellow LEDs
R1 and R2 LEDs Red
ICI 555
IC2 4017
IC3 4017

Miscellaneous:
-1 Medium DIL 2x4
-2 DIL supports 2x8
-1 9v battery clips
-1 inter 
-2 Screw 2mm
-2 Nuts 2mm

 (4)    0

Your comment has been sent successfully. Thanks for comment!
Leave a Comment
Captcha