Introduction: How to Make a Traffic Light Blink With Arduino
first get familiar with your parts.
led
breadboard
Arduino
male wires
resistors( if u get the wrong one the lights won't work)
Step 1: Setup
Step 2: Making a Variable
int redled= 13; // declares that the name redled is the same as 13
int yellowled= 12; // declares that the name yellowled is the same as 12
int greenled= 11; // declares that the name greenled is the same as 11
Step 3: Setup
void setup(){
pinMode(greenled,OUTPUT); // declares the green led as an output
pinMode(yellowled, OUTPUT); // declares the yellow led as an output
pinMode(redled, OUTPUT);// declares the red led as an output
}
Step 4: The Loop
void loop(){ // keeps the code on until it is stopped by a person
digitalWrite(greenled, HIGH); // turns on the green light
delay(3000);// sets how long the green light would stay
digitalWrite(greenled, LOW); // turns the green light off
digitalWrite(yellowled,HIGH);// turns yellow light on
delay(3000); // sets how long the yellow light will stay on
digitalWrite(yellowled,LOW);// turns yellow light off
digitalWrite(redled,HIGH);// turns red light on
delay(3000);// sets how long the red light will stay on
digitalWrite(redled,LOW);// shuts off the red light
} // the end of the code
