Review on MakerFocus 2Pcs I2C OLED Display Module 0 by Tamara Palmer

Knowing the dimensions of these displays, I was still surprised at how small they are (see images for relative size compared to Arduino PRO Micro). However, they work great and are very bright (mine is 5V) and the size is just right for smaller projects. Wiring was easy (VCC, GND, SDA and SCL). I used the Adafruit Arduino libraries (Adafruit_GFX and Adafruit_SSD1306) and her sketch worked right away. At $5.00 each they are a great value. Highly recommended.