I made this.

Step 1: FOUR WAY TRAFFIC LIGHT WITH CLOUDX MICROCONTROLLER

Using CloudX development board for traffic control is as simple as ABC; its as eazy as "Every one can do It".

On this project, i have implemented functions in this project for both educational purpose and industrial use. None the less, it is better as a programmer, it helps in debugging. The code is simple to read, modify and implement.

NOTE: for more info on CloudX follow this link

So it goes thus:

/* <br> * File:   main.c
 * Author: Ogboye Godwin
 *
 * Created on June 25, 2018, 12:12 PM
 */

#include <CloudX/M633.h>

#include <CloudX/Serial.h><br><cloudx m633.h=""><cloudx serial.h="">
setup(){</cloudx></cloudx>

    int answer,x;
    for(x=0; x<32; x++){
        answer=answer+x;
    }
    int dfr;
    dfr=x;
    loop(){}
}*/
#define R1 pin1
#define Y1 pin2
#define G1 pin3
#define R2 pin4
#define G2 pin5
#define Y2 pin6
#define R3 pin7
#define G3 pin8
#define Y3 pin9
#define R4 pin10
#define Y4 pin11
#define G4 pin12
int active;

void blinka(){
  
      if(active==1){
          for(int yu=0; yu<10; yu++){
              delayms(1000);
          Y1 =~ Y1;
          Y2 =~ Y2;
          }
      }
      if(active==2){
          for(int yu=0; yu<10; yu++){
              delayms(1000);
          Y2 =~ Y2;
          Y3 =~ Y3;
          }
      }
      if(active==3){
          for(int yu=0; yu<10; yu++){
              delayms(1000);
          Y3 =~ Y3;
          Y4 =~ Y4;
          }
      }
      if(active==4){
          for(int yu=0; yu<10; yu++){
              delayms(1000);
          Y4 =~ Y4;
          Y1 =~ Y1;
          }
      }
}
all_off(){
    R1 = OFF; R2 = OFF; R3 = OFF; R4 = OFF;
    Y1 = OFF; Y2 = OFF; Y3 = OFF; Y4 = OFF;
    G1 = OFF; G2 = OFF; G3 = OFF; G4 = OFF;
    active=0;
}
all_on(){
    R1 = ON; Y1 = ON; G1 = ON;
    R2 = ON; Y2 = ON; G2 = ON; 
    R3 = ON; Y3 = ON; G3 = ON; 
    R4 = ON; Y4 = ON; G4 = ON;
    active=0;
}
road1_go(){
    R1 = OFF; Y1 = OFF; G1 = ON;
    R2 = ON; Y2 = OFF; G2 = OFF;
    R3 = ON; Y3 = OFF; G3 = OFF;
    R4 = ON; Y4 = OFF; G4 = OFF;
    active=1;
}
road2_go(){
    R1 = ON; Y1 = OFF; G1 = OFF;
    R2 = OFF; Y2 = OFF; G2 = ON;
    R3 = ON; Y3 = OFF; G3 = OFF;
    R4 = ON; Y4 = OFF; G4 = OFF;
    active=2;
}
road3_go(){
    R1 = ON; Y1 = OFF; G1 = OFF;
    R2 = ON; Y2 = OFF; G2 = OFF;
    R3 = OFF; Y3 = OFF; G3 = ON;
    R4 = ON; Y4 = OFF; G4 = OFF;
    active=3;
}
road4_go(){
    R1 = ON; Y1 = OFF; G1 = OFF;
    R2 = ON; Y2 = OFF; G2 = OFF;
    R3 = ON; Y3 = OFF; G3 = OFF;
    R4 = OFF; Y4 = OFF; G4 = ON;
    active=4;
}

setup(){
    for(int cv=1; cv<13; cv++)
        pinMode(cv, OUTPUT);
    for(int cv=0; cv<5; cv++){
        all_off();
        delayms(700);
        all_on();
        delayms(400);
    }
    loop(){
        road1_go();
        delayms(10000);
        blinka();
        road2_go();
        delayms(10000);
        blinka();
        road3_go();
        delayms(10000);
        blinka();
        road4_go();
        delayms(10000);
        blinka();