#include "myimages.h"

/*
 0.96 inch SSD1306 OLED display
Pin	--> ESP32
Vin	--> 3.3V
GND	--> GND
SCL	--> GPIO 22
SDA	--> GPIO 21
 */ 
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

#define PIN_TRIG 26
#define PIN_ECHO 27


void setup() {
  Serial.begin(115200);
  
  pinMode(PIN_TRIG, OUTPUT);
  pinMode(PIN_ECHO, INPUT);

// configura la pantalla para recibir datos

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

}

void loop() {
  // Start a new measurement:
  digitalWrite(PIN_TRIG, HIGH);
  delayMicroseconds(10);
  digitalWrite(PIN_TRIG, LOW);

 // Read the result:
  int duration = pulseIn(PIN_ECHO, HIGH);
  duration = random(0,23500);

  Serial.print(duration / 58);
  Serial.print(" cm, ");
  Serial.print(duration / 148);
  Serial.println(" inches,");
  

    // Mostrar los datos del sensor actual en la pantalla OLED
    display.clearDisplay();
    display.setTextColor(WHITE);
    display.setTextSize(1); display.setCursor(0,0);
          display.print("Distancia: "); display.print(duration);

          display.setTextSize(2);  display.setCursor(0,20);
          display.print(duration / 58);
          display.setTextSize(1); display.print(" cm");
          display.setTextSize(2);  display.setCursor(0,40);
          display.print(duration / 148);
          display.setTextSize(1); display.print(" Pulgadas");

          display.display();

          delay(1500);
}