Introduction - If you have any usage issues, please Google them yourself
Adafruit_GFX and Adafruit_SSD1306 These two folders are library files, put them in the "libraries" folder;
Demo.ino for the demo program, the correct wiring and download to the Arduino board can be.
0.96-inch SPI interface arduino Wiring:
OLED screen arduino development board
GND GND
VCC 3.3V or 5V
SCL 10
SDA 9
RES 13
DC 11
CS 12 seven-pin module has cs feet; direct connection just fine; if it is with six-pin CS default has been grounded;