esp8266-oled-ssd1306 is a driver for the SSD1306 based 128x64 pixel OLED display running on the Arduino/ESP8266 platform. Can be used with either the I2C or SPI version of the display You can either download this library as a zip file and unpack it to your Arduino/libraries folder or (once it has been added) choose it from the Arduino library manager. This video show how to install on Arduino IDE using Library Manager, and run the example. Connection between NodeMCU and OLED 0.96" 128x64 I2C SSD1306: NodeMCU 3V3 - OLED VCC NodeMCU GND - OLED GND NodeMCU D3 - OLED SDA NodeMCU D5 - OLED SCL (The Fritzing parts of both nodemcu-v1.0 and OLED_SSD1306_I2C_128x64 can be download here: https://github.com/squix78/esp8266-fritzing-parts) Related: - NodeMCU/ESP8266 display on 1.3" 128x64 OLED SPI with SH1106, using esp8266-oled-sh1106 library - Raspberry Pi display on 128x64 I2C OLED with SSD1306, using Python Other libraries to run on NodeMCU/ESP8266 with I2C OLED SSD1306: - NodeMCU (ESP8266) to display on 128x64 I2C OLED, using Adafruit SSD1306 library - esp8266-OLED, esp8266-Arduino library for I2C-OLED displays For ESP32 WiFi/Bluetooth Module: - Connect I2C 128X64 OLED (SSD1306) to ESP32, using esp8266-oled-ssd1306