Sep 09, 2019 · An Arduino Nano will be used this time, mounted on a breadboard. Together with the ultrasonic unit, the OLED and a 5V USB battery pack we have ourselves a fully portable distance measurement device. The SSD1306 is an OLED display that can be had for less than $2,-. It comes in two sizes, 128×32 pixels, or 128×64 pixels. This OLED Display Module is very compact and will add a great ever user interface experience to your Arduino project. The connection of this display with Arduino is made through SPI interface. The 1.3 Inch 128×64 OLED Display Screen Module produces blue text on black background with very good contrast when supplied with DC 2.8V supply. The OLED Display Modules also offers a very wide viewing angle of about greater than 160°.