JonDent - Exploring Electronic Music: OLED - printing text to the screen

Friday, 5 August 2016

OLED - printing text to the screen

OLEDs communicate with your Arduino via i2c.

+ i2c protocol

Just 4 wires are needed.

Gnd

Vcc

Data connects to A4

Clock connects to A5 (Uno)

This is a basic start up splash screen.

There are 3 pages

Libraries Required :

Adafruit SSD1306
Adafruit GFX

The code:

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

// install these libraries
#include <Wire.h>
#include <Adafruit_SSD1306.h>
#include <Adafruit_GFX.h>

#define OLED_WIDTH 128
#define OLED_HEIGHT 64

#define OLED_ADDR 0x3C
// define the i2c address
// if you don't know the address, use a i2c scanner
// you can have over 100 devices connected

Adafruit_SSD1306 display(OLED_WIDTH, OLED_HEIGHT);

void setup() {
display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR);
// this begins the display
display.clearDisplay();

display.setTextSize(2); // range of 1 to 8
display.setTextColor(WHITE);
display.setCursor(0, 0); // first position on left
display.println("Welcome");

display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 17); // 17 positions dowm
display.println("Page 1"); // just like a serial printer
display.println("intro");
display.println("display");

display.display();
//display function.
// this is very impt .. it prints everything
// from memory to the screen

delay(5000);
}

void loop() {
display.clearDisplay();

display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 0);
display.println("Jono");
display.println("page 2");

display.setTextSize(1);
display.setTextColor(WHITE);
display.setCursor(0, 35);
display.println("jondent");
display.println("Synth Blog");
display.println("jondent808@gmail.com");

display.display();
delay(5000);

display.clearDisplay();

display.setTextSize(2);
display.setTextColor(WHITE);
display.setCursor(0, 0); // 0 = collumn, 0 = row
display.println("Jon's test");
display.println("page 3");

display.display();
delay(5000);
}