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Here is a traffic light system based on Arduino that can be used in a 3-way ond 4-way intersections. It has an additional blinking orange led that is used to signal when the pedestrians can cross the ...

First, the code defines six integer variables, one for each of the six LEDs that will be used as the traffic lights. The variables are given pin numbers corresponding to the physical pins on the ...

In a previous article, we looked at connecting various kinds of Arduino ... traffic light. These traffic light boards usually have three or four pins: one for each colored LED, and one GND. The ...