Review on 📺 Stemedu PiOLED I2C 0.91inch OLED Display Module: Perfect Raspberry Pi 1/2/3/Zero Accessory with 128x32 SSD1306 White Screen by Tyshawn Adams

at All you need to do is download the software shown on the product page and you are good to go. To run at boot add the application to rc.local. The only problem is the "feature" of OLED displays. There is burnout. So don't keep it running 24/7 and add a screensaver feature (black on white and then white on black). If your Raspberry Pi doesn't have a header, you'll need to add one. Only the first 6 pins are required. PiOLED gives you a good idea of what's going on inside your Raspberry Pi.