TRAFFIC SIGNAL CIRCUIT | TINKERCAD

In this article, I will tell you the steps to make a Traffic Signal circuit using TinkerCad. In this circuit there will be 3 LEDs which will start glowing 1 by 1 after a set interval, in my project it is 5 seconds. First red led will glow for 5 seconds, then yellow led will glow for 5 seconds, at last green led will glow for 5 seconds. This cycle will continue forever till the simulation is on.

The required components to make this circuit are as follows:-

• Breadboard
• 3 LEDs (Red, Yellow, Green)
• 3 Resistors
• Arduino UNO R3

Make the connections as shown in the above picture using TinkerCad Circuits.

Drag and drop the code blocks or write the code in the TinkerCad software.

// C++ code

//

void setup()

{

 pinMode(1, OUTPUT);

 pinMode(2, OUTPUT);

 pinMode(3, OUTPUT);

}

void loop()

{

 digitalWrite(1, HIGH);

 delay(5000); // Wait for 5000 millisecond(s)

 digitalWrite(1, LOW);

 digitalWrite(2, HIGH);

 delay(5000); // Wait for 5000 millisecond(s)

 digitalWrite(2, LOW);

 digitalWrite(3, HIGH);

 delay(5000); // Wait for 5000 millisecond(s)

 digitalWrite(3, LOW);

}