Electronic Projects, Power Supply Circuits, Circuit Diagram symbols, Audio Amplifier Circuit pdf & Engineering Projects

Posted by Circuits Arena on Sunday, 9 November 2014

Categories: 555IC, HOBBY PROJECTS, PROJECTS

TRAFFIC LIGHT USING I.C 555 is the artlcle explaining TRAFFIC LIGHT Circuit Diagram Traffic Light Circuit can be used to control traffic on roads or in public places. ...

TRAFFIC LIGHT

Circuit Diagram

Traffic Light Circuit can be used to control traffic on roads or in public places.

Traffic light there are three different color bulb which are Green, Yellow/Amber and Red

IC555 as Astable Multivibrator for rapid squire wave pulse generation.

Every pulse fed to input pin-14, the High level output keeps shifting from D1 to D9 in cyclic order.

At a time one output is higher (Positive) and other output pins of IC remains at low state.

Project Model

Components Used

IC = NE555 ( Timer IC) ,

IC CD4017 (Counter IC)

Diode = IN4007 6Pcs

POT = 470K

Resistance = 22K, 100K, 220 Ohms X 3Pcs

Capacitor = 0.1 Mfd, 1 Mfd, 10 Mfd.

9 Volt Battery with Snap

Switch

Wire

Clamp

PCB

TRAFFIC LIGHT

Circuit Diagram

At a time one output is higher (Positive) and other output pins of IC remains at low state.

Project Model

Components Used