128x32 OLED

//This is a highly modified version of the Example sketch available by clicking in the Arduino IDE File -> Examples -> Adafruit SSD1306 -> OLED_featherwing
//To get this to work you need to follow the instructions in the first review by calBear at
//https://www.amazon.com/SSD1306-Self-Luminous-Display-Compatible-Raspberry/dp/B08LYL7QFQ/ref=sr_1_3?dchild=1&keywords=128x64%2BOLED&qid=1627471545&sr=8-3&fbclid=IwAR2lzvpr5-noXW7rSlxwR5lF8OPrLJmvdJVk6vPRBobZDewJUZnqU1lXoSg&th=1
//I have these instructions saved in an OLED Research.docx file

//Read this article to understand what all of these buttons are from
//Source 1 - https://learn.adafruit.com/adafruit-oled-featherwing/usage
//Source 2 - https://lastminuteengineers.com/oled-display-arduino-tutorial/ - very useful article that explains the sketch below

//#include <SPI.h> //Only used in the serial version of the OLED - not needed for I2C version
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

Adafruit_SSD1306 display = Adafruit_SSD1306(128, 32, &Wire);

// OLED FeatherWing buttons map to different pins depending on board:
//This mapping is for the Arduino's ATMega328P processor
//#define BUTTON_A  9 - Not needed since not using this Adafruit board mentioned in Source 1
//#define BUTTON_B  6 - Not needed since not using this Adafruit board mentioned in Source 1
//#define BUTTON_C  5 - Not needed since not using this Adafruit board mentioned in Source 1

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

  Serial.println("OLED FeatherWing test");
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Address 0x3C for 128x32

  Serial.println("OLED begun");

  // Show image buffer on the display hardware.
  // Since the buffer is intialized with an Adafruit splashscreen
  // internally, this will display the splashscreen.
  display.display();
  delay(1000);

  // Clear the buffer.
  display.clearDisplay();
  display.display();

  Serial.println("IO test");

  //pinMode(BUTTON_A, INPUT_PULLUP);
  //pinMode(BUTTON_B, INPUT_PULLUP);
  //pinMode(BUTTON_C, INPUT_PULLUP);

  // text display tests
  display.setTextSize(1);
  display.setTextColor(SSD1306_WHITE);
  display.setCursor(0,0);
  //display.print("Connecting to SSID\n'adafruit':");
  //display.print("connected!");
  //display.println("IP: 10.0.1.23");
  //display.println("Sending val #0");
  display.println("Hello! My name is ");
  display.print("Jonathan DeWitt");
  display.setCursor(0,0);
  display.display(); // actually display all of the above
}

void loop() {
  //if(!digitalRead(BUTTON_A)) display.print("A");
  //if(!digitalRead(BUTTON_B)) display.print("B");
  //if(!digitalRead(BUTTON_C)) display.print("C");
  //delay(10);
  //yield();
  //display.display();
}