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Pour les premiers essais je vais utiliser un tuto disponible à cette adresse : http://www.instructables.com/id/Monochrome-096-i2c-OLED-display-with-arduino-SSD13/ (merci Mike 
)
Il faut d'abord relier l'arduino à l'écran Oled :
VCC - > 5 Volt de l'arduino
GND -> GND arduino
SCL -> SCL Arduino (sur Uno sinon Pin A5)
SDA -> SDA Arduino (sur Uno sinon Pin A4)
Pour connaitre l'adresse I2C de l'écran il faut lancer un petit sketch arduino : i2c_scanner http://playground.arduino.cc/Main/I2cScanner
// --------------------------------------
// i2c_scanner
//
// Version 1
// This program (or code that looks like it)
// can be found in many places.
// For example on the Arduino.cc forum.
// The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
// Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26 2013
// V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
// by Arduino.cc user Krodal.
// Changes by louarnold removed.
// Scanning addresses changed from 0...127 to 1...119,
// according to the i2c scanner by Nick Gammon
// http://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
// As version 4, but address scans now to 127.
// A sensor seems to use address 120.
// Version 6, November 27, 2015.
// Added waiting for the Leonardo serial communication.
//
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
//
#include <Wire.h>
void setup()
{
Wire.begin();
Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknow error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
Et on récupère sur le moniteur de serie l'adresse. Dans mon cas 0x3C.
Ensuite il faut installer les bibliothèques: SSD 1306 library et GFX library (je vous conseille de passer par le gestionnaire de librairie Arduino).
Vous pouvez utiliser le sketch en exemple dans la librairie qui donne un aperçu des possibilités de cet écran Oled :
Bientôt une petite vidéo.
