#include <Adafruit_BusIO_Register.h>  //Näytön vaatima library
#include <Adafruit_I2CDevice.h>
#include <Adafruit_I2CRegister.h>
#include <Adafruit_SPIDevice.h>

#include <Adafruit_GFX.h>             //Näytön vaatima library
#include <Adafruit_GrayOLED.h>
#include <Adafruit_SPITFT.h>
#include <Adafruit_SPITFT_Macros.h>
#include <gfxfont.h>

#include <Adafruit_SSD1306.h>         //Näytön vaatima library
#include <splash.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
#define OLED_RESET    4  // Reset pin # (or -1 if sharing reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
  // put your setup code here, to run once:
  // The setup function should follow the declaration of any variables at the very
  // beginning of the program. It is the first function to run in the program, it's run only
  // once, and it's used to set pinMode or initialize serial communication. 

  // AI:tä ei tarvitse erikseen asettaa. Ainoastaan digitaaliset inputit ja outputit

  Serial.begin(9600);
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
  {
    Serial.println("SSD1306 allocation failed");
    while(1); //Don't proceed, loop forever
  }
  //display.display();
  //delay(100);
  //display.clearDisplay(); 
  display.clearDisplay();
  display.setTextColor(WHITE);  
  display.setTextSize(1);
  display.setCursor(50, 10);
  display.print("start");
  display.display();
  delay(400);
  display.clearDisplay(); 
  display.setTextSize(1);
  display.setCursor(5, 0);
  display.println("pot value:");
  display.setCursor(5, 30);
  display.println("analog ip:");
}
 



void loop() 
{

   int sensorValue = analogRead(A0);
  Serial.print("Analog Value =");
  Serial.println(sensorValue); 
  float voltage = (sensorValue / 1023.0) * 5.0;
  Serial.print("Voltage = ");
  Serial.print(voltage);
  Serial.println(" V"); 
  display.setTextSize(1);
  display.setCursor(5, 0);
  display.println("pot value:");
  display.setCursor(5, 30);
  display.println("analog ip:");  
  display.setCursor(5,15);
  display.print(sensorValue);  
  display.setCursor(5,45);
  display.print(voltage);
  display.display();
  delay(1000);
  display.clearDisplay();  // JES OIVALSIN! Uudet numerot piirtyi vanhojen päälle
}