Traffic-Light-Controller-using-Arduino

#I have designed a traffic light controller using Arduino. This traffic light controller will be used to control the flow of traffic. These can be applied at high traffic areas to avoid traffic blocks or accidents.

Code

//First of all, we define the pins where we have //connected the LEDs. int red_1=13; int orange_1=12; int green_1=11; int red_2=10; int orange_2=9; int green_2=8; int red_3=7; int orange_3=6; int green_3=5; int red_4=4; int orange_4=3; int green_4=2;

void direction_1_green(void)//green LED of direction 1 will turn ON { digitalWrite(red_1,LOW); digitalWrite(orange_1,LOW); digitalWrite(green_1,HIGH); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); }

void direction_2_orange(void)//orange LED of direction 2 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,LOW); digitalWrite(orange_2,HIGH); digitalWrite(green_2,LOW); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); }

void direction_2_green(void)//green LED of direction 2 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,LOW); digitalWrite(orange_2,LOW); digitalWrite(green_2,HIGH); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); }

void direction_3_orange(void)//orange LED of direction 3 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,LOW); digitalWrite(orange_3,HIGH); digitalWrite(green_3,LOW); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); }

void direction_3_green(void)//green LED of direction 3 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,LOW); digitalWrite(orange_3,LOW); digitalWrite(green_3,HIGH); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); } void direction_4_orange(void)//orange LED of direction 4 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,LOW); digitalWrite(orange_4,HIGH); digitalWrite(green_4,LOW); } void direction_4_green(void)//green LED of direction 4 will turn ON { digitalWrite(red_1,HIGH); digitalWrite(orange_1,LOW); digitalWrite(green_1,LOW); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,LOW); digitalWrite(orange_4,LOW); digitalWrite(green_4,HIGH); } void direction_1_orange(void)//orange LED of direction 1 will turn ON { digitalWrite(red_1,LOW); digitalWrite(orange_1,HIGH); digitalWrite(green_1,LOW); digitalWrite(red_2,HIGH); digitalWrite(orange_2,LOW); digitalWrite(green_2,LOW); digitalWrite(red_3,HIGH); digitalWrite(orange_3,LOW); digitalWrite(green_3,LOW); digitalWrite(red_4,HIGH); digitalWrite(orange_4,LOW); digitalWrite(green_4,LOW); } void setup() { // Declaring all the LED's as output

for(int i=2;i<=13;i++) pinMode(i,OUTPUT);

} void loop() //In the loop function, we controlled the signal one // by one to control the flow of traffic. { direction_1_green(); delay(5000); direction_2_orange(); delay(3000); direction_2_green(); delay(5000); direction_3_orange(); delay(3000); direction_3_green(); delay(5000); direction_4_orange(); delay(3000); direction_4_green(); delay(5000); direction_1_orange(); delay(3000); }