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

#define LED_BUILTIN 8

#define Horz 0
#define Vert 1
#define JoyStk 2
#define Pushbutton 10

Adafruit_SSD1306 oled(128, 64, &Wire, -1);

boolean PBState = digitalRead(Pushbutton);

unsigned long currentMillis;
unsigned long previousMillis = 0;               // interval delay.(Will release CPU while delay runs
long interval = 1000;

int incomingInt = 0;
char inputBuffer[16];


//**************************************************************************************

void setup() {
  Serial.begin(9600);

  if (!oled.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("failed to start SSD1306 OLED"));
    while (1);
  }

  delay(2000);         // wait two seconds for initializing

  pinMode(Pushbutton, INPUT_PULLUP);
  pinMode(LED_BUILTIN, OUTPUT);



  oled.clearDisplay(); // clear display
  oled.setTextSize(1);         // set text size
  oled.setTextColor(WHITE);    // set text color




}
//**************************************************************************************
void loop() {

  int valV = analogRead(Vert);                // read the input pin
  int valH = analogRead(Horz);                // read the input pin
  int valJoyS = analogRead(JoyStk);           // read the input pin
  PBState = digitalRead(Pushbutton);



  Serial.print(valV);
  Serial.print('\n');

  Serial.print(valH);
  Serial.print('\n');

  Serial.print(valJoyS);
  Serial.print('\n');

  Serial.print(PBState);
  Serial.print('\n');


  //********************************************************************************************************


  if (Serial.available() > 0) {                                                  // Check if the required number of bytes is available

    String RdvalV = Serial.readStringUntil('\n');
    String RdvalH = Serial.readStringUntil('\n');
    String RdvalJS = Serial.readStringUntil('\n');
    String RdvalPB = Serial.readStringUntil('\n');


    oled.clearDisplay();                      // clear display
    oled.setCursor(0, 10);                    // set position to display (x,y)
    oled.print("Vert:  ");
    oled.println(RdvalV);

    oled.setCursor(0, 20);                    // set position to display (x,y)
    oled.print("Horz:  ");
    oled.println(RdvalH);

    oled.setCursor(0, 30);                    // set position to display (x,y)
    oled.print("JoySt: ");
    oled.println(RdvalJS);

    oled.setCursor(0, 40);                    // set position to display (x,y)
    oled.print("PushB: ");
    oled.println(RdvalPB);

    oled.display();

  }

  delay(10);

} //end void loop


//*************************************************************************************************************************************************

void setDelay() {
  unsigned long currentMillis = millis();
  if (currentMillis - previousMillis >= interval) {

    digitalWrite(LED_BUILTIN, !digitalRead(LED_BUILTIN));

    previousMillis = currentMillis;
  }
}