File content as of revision 0:3b87797f65fc:

#include "mbed.h"
#include "Adafruit_SSD1306.h"

DigitalOut led1(LED_RED);

// SPI sub-class that provides a constructed default
class I2CPreInit : public I2C
{
public:
    I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
    {
      //frequency(400000); 
        frequency(100000);
        start();
    };
};

I2CPreInit myI2C(PTE0,PTE1);
Adafruit_SSD1306_I2c myOled(myI2C,NC,0x78,64,128);

int main()
{   
    uint16_t x=0;
 
    myOled.begin();
    myOled.printf("%ux%u Hellow World\r\n", myOled.width(), myOled.height());
    myOled.display();

    while(1)
    {
        led1 = !led1;
        myOled.printf("%u\r",x);
        myOled.display();
        x = x + 1;                  
        wait(1.0);
    }
}






/*
#include "mbed.h"
#include "Adafruit_SSD1306.h"

class I2CPreInit : public I2C
{
public:
 I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
 {
 frequency(100000);
 start();
 };
};
 
I2CPreInit myI2C(PTE0,PTE1);
Adafruit_SSD1306_I2c myOled(myI2C,NC,0x78,64,128);
 
int main()
{ 

 uint16_t x=0;
  
 myOled.begin();
 myOled.clearDisplay();
 myOled.display();
 wait(0.1);
  
 myOled.fillCircle(64, 42, 10, 1); 
 myOled.display();
 wait(1);
 myOled.fillCircle(64, 42, 5, 0); 
 myOled.display();
 wait(1);
  
 myOled.clearDisplay();
 myOled.display();
 wait(0.1);
  
 myOled.printf("\r\n OLED %ux%u \r\n\r\n Hello World\r\n\n", myOled.width(), myOled.height());
  
 myOled.drawRect(0, 0, 128, 64,1);
 myOled.display();
 wait(0.5);
 while(1)
 {
  
 myOled.printf("%u\r ",x);

 myOled.drawRect(0, 0, 128, 64,1); 
  
 myOled.display();
 x = x + 1; 
 wait(0.01);
 }
}
*/