File content as of revision 3:4b19b6cf6cc7:

#pragma once

#include "mbed.h"

// Uncomment this in the adafruit config.h to turn off the builtin splash
//#define NO_SPLASH_ADAFRUIT
// Uncomment this in the adafruit config.h to enable all functionality
//#define GFX_WANT_ABSTRACTS

#include "Adafruit_SSD1306.h"


class Screen
{
private:
    I2C i2c;
    Adafruit_SSD1306_I2c oled;
public:
    // The screen we use doesn't have a reset pin, but it needs one anyway.
    // Use a pin we don't use.
    Screen(PinName sda, PinName scl, PinName reset):
        i2c(sda, scl),
        oled(i2c, reset) {
            
        // according to the spec the max bitrate for the SSD1308 is 400 kbit/s
        i2c.frequency(400000);

        // IMPORTANT! Otherwise nothing will be displayed.
        oled.clearDisplay();
        display();
    }

    void display() {
        // Apparently the display only updates every 2 "display" calls.
        // This is a bug in the library.
        oled.display();
        oled.display();
    }

    // Returns a direct handle to the screen.
    // Be carefull while using the handle.
    Adafruit_SSD1306_I2c get_screen_handle() {
        return oled;
    }
    
};