marka: This is a general OLED display Module, 1.5inch diagonal, 128x128 pixels, 16 gray scale, with embedded controller, communicating via SPI or I2C interface. Features: 128x128 high resolution 16 gray scale, better display effect Supports SPI or I2C interface, configured via onboard resistor Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32) Specifications: Driver: SSD1327 Interface: SPI / I2C Display color: White Gray scale: 16 Resolution: 128x128 (most other competitive products are typically 128x64) Viewing angle: >160° Operating voltage: 3.3V / 5V Dimension: 44.5 x 37 (mm) Interface: SYMBOL DESCRIPTION VCC Power (3.3~5V input) GND Ground DIN Data input CLK Clock data input CS Chip selection, low active DC Data/Command selection (high for data, low for command) RST Reset, low active There are two available drive interfaces for this OLED module: 4-wire SPI and I2C: BS CS DC DIN CLK 4-wire SPI 0 Chip select Data/Command MOSI SCK I2C 1 NC I2C address selection SDA SCL Dimensions: Documents: Wiki