// Y VERTICAL
// X HORIZONTAL

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

//Definindo parametros do Display
#define LARGURA_OLED 128
#define ALTURA_OLED 64
#define RESET_OLED -1
Adafruit_SSD1306 display(LARGURA_OLED, ALTURA_OLED, &Wire, RESET_OLED);

// string -> int (ascii)
String str = "";

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

  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.display();

  Serial.setTimeout(10);
  Serial.println("Inicializando...");
  delay(1000);
}

void loop() {
  receive();
}


void receive() {
  if (Serial.available() > 0) {
    str = Serial.read();
    str.trim();
    Serial.println(str);

    display.clearDisplay(); // limpa o display
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(1, 1);
    display.print(str); // imprime str no display
    display.display(); // exibe no display
  }
}

// bota no array e exclui o ultimo (enter);

void convert() {
  
}



/*
receive string from serial monitor 
convert to int
from int convert to ascii char
then display on lcd

https://docs.oracle.com/javase/6/docs/api/java/lang/Character.html#toString%28char%29

https://stackoverflow.com/questions/7693994/how-to-convert-ascii-code-0-255-to-its-corresponding-character

A - Z
65 - 90
  
a - z
97 - 122

*/