//DELA CRUZ JERSON P.
//BSCPE3-1
//STM32 - TRAFFIC LIGHTS SIMULATION

#define GLED PA5
#define YLED PA7
#define RLED PA9

void setup() {
  pinMode(GLED, OUTPUT);
  pinMode(YLED, OUTPUT);
  pinMode(RLED, OUTPUT);
  Serial.begin(1152000);
}

void loop() {
  digitalWrite(GLED, HIGH);
  digitalWrite(YLED, LOW);
  digitalWrite(RLED, LOW);
  Serial.println("GREEN");
  delay(3000);

  digitalWrite(GLED, LOW);
  digitalWrite(YLED, HIGH);
  digitalWrite(RLED, LOW);
  Serial.println("YELLOW");
  delay(2000);

  digitalWrite(GLED, LOW);
  digitalWrite(YLED, LOW);
  digitalWrite(RLED, HIGH);
  Serial.println("RED");
  delay(4000);
}