Designing Simple Traffic Light Controller Circuit. Traffic light which is known also as traffic signals or traffic lamps is a device that mainly installed or positioned at road intersections or pedestrian crossing as a controller of traffic flows. For more information about traffic light history, types and technology you can visit wikipedia.org (http://en.wikipedia.org/wiki/Traffic_light).

SimpleTrafficLightControllerCircuitD

The above schematic illustrates a simple automated traffic light controller circuit design. This circuit utilizes some integrated circuit (IC) such as 555 timer, and 74160. You can simulate various traffic lights using green, yellow, and red LEDs and feed the outputs of the circuit to respective LEDs via current-limiting resistors of 470 ohms each to check the working of the circuit.

Circuit Designer:

VIKRAM BANERJEE
MRINAL KANTI MANDAL
DR ANIRUDHA GHOSAL

Source: http://www.electronicsforu.com/efylinux/circuit/nov2002/traffic.pdf



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