Features: 1.This is an ESP8266 0.96 OLED board that features all the features of a traditional ESP8266 module. 2.Seamless integration with 0.96-inch OLED displays eliminates the need for wires and test boards. 3.The board uses I2C to connect to the OLED display through SDA (D6/GPIO14) and SCL (D5/GPIO12) pins. 4.The module is paired with a display screen template, and with this board, various information and data can be displayed. 5.Display function, high-resolution 128x64 with SSD-1306 driver, compatible with I2C and SPI interfaces, can be connected using Type-C interfaces. Product Introduction: This circuit board integrates the ESP8266 NodeMCU and 0.96-inch OLED screen, providing all the functions of traditional ESP8266 modules, with the same size and peripheral ports, as well as higher performance development tools and high-definition data display. It supports multiple programming modes and has an ESP8266 chip with an 80MHz main frequency and 4MB flash memory, making it easy to handle tasks and applications, as well as a complete network protocol stack and security mechanism. It has low power consumption and high performance, making it suitable for beginners and professionals to develop and apply IoT projects. Parameters: Working voltage: 3.3V Input voltage: 7-12V Digital I/0 pin (): 16 Analog input pin (ADC): 1 UART: 1 SPI: 1 1 12Cs: 1 Driver: CH340G Flash memory: 4 MB : 64 KB Clock speed: 80 MHZ Colour: Black Material: PCB+electronic components Depending on the batch, the batch code symbol printed on the product may be different, but this does not affect Package Contents: 2x Development Board 4x row pin Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.