#include <ABLocks_TimerFreeTone.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

Adafruit_SSD1306 oled_1(128,64, &Wire,-1);
bool oled_1_autoshow=true;

void setup()
{
  	pinMode(4, INPUT);
	pinMode(25, OUTPUT);
	pinMode(32, OUTPUT);
	pinMode(33, OUTPUT);
	pinMode(26, OUTPUT);

	oled_1.begin(SSD1306_SWITCHCAPVCC,0x3C);
	oled_1.clearDisplay();
	if(oled_1_autoshow)oled_1.display();
	oled_1.setTextSize(1);
	oled_1.setTextColor(WHITE);
	oled_1.setCursor(0,0);
	oled_1.print(String("Semáforo Peatonal"));
	if(oled_1_autoshow)oled_1.display();
	oled_1.setTextSize(1);
	oled_1.setTextColor(WHITE);
	oled_1.setCursor(0,30);
	oled_1.print(String("con alarma"));
	if(oled_1_autoshow)oled_1.display();
	oled_1.display();

}


void loop()
{
	yield();

  	while(!((!digitalRead(4))));
  	digitalWrite(25, LOW);
  	digitalWrite(32, HIGH);
  	digitalWrite(33, LOW);
  	delay(2000);
  	for (int count = 0; count < 3; count++) {
  		digitalWrite(25, LOW);
  		digitalWrite(32, LOW);
  		digitalWrite(33, HIGH);
  		TimerFreeTone(26,1000,500);
  		delay(200);
  		digitalWrite(25, LOW);
  		digitalWrite(32, LOW);
  		digitalWrite(33, LOW);
  		TimerFreeTone(26,500,500);
  		delay(200);
  	}
  	digitalWrite(25, HIGH);
  	digitalWrite(32, LOW);
  	digitalWrite(33, LOW);

}