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Sometimes it may be necessary to use a display when making a hardware project, but one confusing thing is the size of the display and the required pins to control it. This tutorial will show you how to use a small I2C OLED display with Arduino using only two wires.
The display used in this tutorial has a very small (2.7 x 2.8cm) OLED screen, that is similar to Arduino Pro Mini size, with 128 x 64 screen resolution. The OLED Driver IC is SSD1306, a single-chip CMOS OLED/PLED driver with controller for organic / polymer light emitting diode dot-matrix graphic display system. The module has only 4 pins, two of them are the supply pins, while the others are SCL and SDA, I2C protocol pins, which will be used to control the display.
Using I2C SSD1306 OLED Display With Arduino – [Link]
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