Oled Display

Overview

OLED displays provide excellent contrast for small screens. The do not require much power but are a bit more complicated to use than other displays.

Exercise:

Turn off the power to your circuit and connect the OLED as follows.

• GND goes to ground

• Vin goes to 5V

• DATA to digital 9

• CLK to digital 10

• D/C to digital 11

• RST to digital 13

• CS to digital 12

 TEACHER CHECK ____

Exercise:

Install the Arduino SSD1306 library. Enter and download the following sample code.

#include <SPI.h>

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

#define OLED_MOSI   9

#define OLED_CLK   10

#define OLED_DC    11

#define OLED_CS    12

#define OLED_RESET 13

Adafruit_SSD1306 display(OLED_MOSI, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);

void setup()   {

  display.begin(SSD1306_SWITCHCAPVCC);

  display.clearDisplay();

  display.setTextSize(1);

  display.setTextColor(WHITE);

  display.setCursor(0, 0);

  display.println(“Hello, world!”);

  display.display();

}

 TEACHER CHECK ____

Exercise:

Modify your code to display your name on the OLED screen in a larger font.

 TEACHER CHECK ____

Exercise:

Program your device using the sample code ssd1306_128x64_spi. This will provide an example of what sort of graphics are possible with the OLED screen.