#include <U8x8lib.h>

//U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(/* reset=*/ U8X8_PIN_NONE);         
U8X8_SH1106_128X64_NONAME_HW_I2C u8x8(/* reset=*/ U8X8_PIN_NONE);

// Buttons on Analogue Pin A3
#define buttonPin A3       // analog input pin to use as a digital input

// Potentiometer Pin A0
#define potPin A0       // analog input pin to use as a 0 to 127 variable

const int ledPin = 13;

int A3val=0;
int A0val=0;

void setup() {
  // put your setup code here, to run once:
  u8x8.begin();
  u8x8.setPowerSave(0);
   u8x8.setFont(u8x8_font_chroma48medium8_r);
  u8x8.drawString(11,0,"v2.1b"); 
    pinMode(ledPin, OUTPUT);
  pinMode(buttonPin, INPUT);
  pinMode(potPin, INPUT); 
        delay(4000);
   u8x8.clearDisplay();
}

void loop() {
  
  // Display Button Value on screen
A3val=analogRead(buttonPin);
//A0val=analogRead(potPin);
  u8x8.setCursor(0,0);
  u8x8.print("Buttons");
  u8x8.setCursor(8,0);
   u8x8.print("    "); //Clear the last reading
     u8x8.setCursor(8,0);
   u8x8.print(A3val);
   
  // Display Knob Value on screen
A0val=analogRead(potPin);
  u8x8.setCursor(0,4);
  u8x8.print("Knob");
  u8x8.setCursor(8,4);
   u8x8.print("    "); //Clear the last reading
     u8x8.setCursor(8,4);
   u8x8.print(A0val);
   
   delay(200);
}