/*
 * This ESP32 code is created by esp32io.com
 *
 * This ESP32 code is released in the public domain
 *
 * For more detail (instruction and wiring diagram), visit https://esp32io.com/tutorials/esp32-traffic-light
 */

#define PIN_RED    13 // The ESP32 pin GPIO25 connected to R pin of traffic light module
#define PIN_YELLOW 12 // The ESP32 pin GPIO26 connected to Y pin of traffic light module
#define PIN_GREEN  14 // The ESP32 pin GPIO27 connected to G pin of traffic light module
#define PIN_RED1    34 // The ESP32 pin GPIO25 connected to R pin of traffic light module
#define PIN_YELLOW1 35 // The ESP32 pin GPIO26 connected to Y pin of traffic light module
#define PIN_GREEN1  32 // The ESP32 pin GPIO27 connected to G pin of traffic light module
#define PIN_RED2    21 // The ESP32 pin GPIO25 connected to R pin of traffic light module
#define PIN_YELLOW2  19 // The ESP32 pin GPIO26 connected to Y pin of traffic light module
#define PIN_GREEN2  18 // The ESP32 pin GPIO27 connected to G pin of traffic light module



#define RED_TIME     4000 // RED time in millisecond
#define YELLOW_TIME  4000 // YELLOW time in millisecond
#define GREEN_TIME   4000 // GREEN time in millisecond
#define RED_TIME1     4000 // RED time in millisecond
#define YELLOW_TIME1  4000 // YELLOW time in millisecond
#define GREEN_TIME1   4000 // GREEN time in millisecond
#define RED_TIME2     4000 // RED time in millisecond
#define YELLOW_TIME2  4000 // YELLOW time in millisecond
#define GREEN_TIME3   4000 // GREEN time in millisecond

void setup() {
  pinMode(PIN_RED, OUTPUT);
  pinMode(PIN_YELLOW, OUTPUT);
  pinMode(PIN_GREEN, OUTPUT);
  pinMode(PIN_RED1, OUTPUT);
  pinMode(PIN_YELLOW1, OUTPUT);
  pinMode(PIN_GREEN1, OUTPUT);
  pinMode(PIN_RED2, OUTPUT);
  pinMode(PIN_YELLOW2, OUTPUT);
  pinMode(PIN_GREEN2, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  // red light on
  digitalWrite(PIN_RED, HIGH);   
  digitalWrite(PIN_YELLOW, LOW); 
  digitalWrite(PIN_GREEN, LOW);  
  digitalWrite(PIN_RED1, LOW);   // turn on
  digitalWrite(PIN_YELLOW1, HIGH); // turn off
  digitalWrite(PIN_GREEN1, LOW); 
  digitalWrite(PIN_RED2, LOW);   // turn on
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN2, HIGH); 
  delay(RED_TIME); 
  delay(YELLOW1_TIME);
  delay(GREEN2_TIME);


  // yellow light on
  digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, LOW); // turn on
  digitalWrite(PIN_GREEN, LOW); // turn off
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, HIGH); // turn on
  digitalWrite(PIN_GREEN1, LOW); // turn off
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOw); // turn on
  digitalWrite(PIN_GREEN2, LOW); // turn off
  delay(YELLOW_TIME1); 


  // green light on
  digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, LOW); // turn off
  digitalWrite(PIN_GREEN, LOW); // turn on
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, LOW); // turn off
  digitalWrite(PIN_GREEN1, LOW); // turn on
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN2, HIGH); // turn on
  delay(GREEN_TIME2); 


digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, HIGH); // turn off
  digitalWrite(PIN_GREEN, LOW); // turn on
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, LOW); // turn off
  digitalWrite(PIN_GREEN1, LOW); // turn on
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN2, LOW); // turn on


  digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, LOW); // turn off
  digitalWrite(PIN_GREEN, LOW); // turn on
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, LOW); // turn off
  digitalWrite(PIN_GREEN1, LOW); // turn on
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN2, HIGH); // turn on

  digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, LOW); // turn off
  digitalWrite(PIN_GREEN, HIGH); // turn on
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, LOW); // turn off
  digitalWrite(PIN_GREEN1, LOW); // turn on
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN2, LOW); // turn on


  digitalWrite(PIN_RED, LOW);    // turn off
  digitalWrite(PIN_YELLOW, LOW); // turn off
  digitalWrite(PIN_GREEN, HIGH); // turn on
  digitalWrite(PIN_RED1, LOW);    // turn off
  digitalWrite(PIN_YELLOW1, LOW); // turn off
  digitalWrite(PIN_GREEN1, HIGH); // turn on
  digitalWrite(PIN_RED2, LOW);    // turn off
  digitalWrite(PIN_YELLOW2, LOW); // turn off
  digitalWrite(PIN_GREEN, HIGH); // turn on



}