Overview
This is 2.42inch OLED Display Module 28×64 Resolution with an embedded SSD1309 driver chip and supports SPI/I2C communication, White Display Color. We also provide the demo codes for Raspberry Pi Pico, Arduino, STM32, ESP32, and Jetson Nano.

Specifications
OPERATING VOLTAGE: 3.3V / 5V
COMMUNICATION INTERFACE: 4-wire SPI (default) / I2C
DRIVER CHIP: SSD1309
RESOLUTION: 128 × 64 pixels
DISPLAY COLOR: WHITE
DISPLAY SIZE: 55.01 × 27.49mm
PIXEL SIZE: 0.4 × 0.4mm
MODULE SIZE: 61.50 × 39.50mm

Hardware Configuration

OLED module provides two kinds of driver interfaces: 4-wire SPI and I2C interfaces respectively. There are two optional soldering resistors on the back of the module at the lower left corner, through the choice of resistors to select the corresponding communication mode. The module adopts a 4-wire SPI communication mode by default, that is, the resistor is connected to the SPI by default. The specific hardware configuration is as follows:

4-wire SPI:
That is the factory demo setting: two 0R resistors are connected to the SPI position; DIN connects to the host MOSI and CLK connects to the host SCLK.

I2C:
Two 0R resistors are connected to the I2C position; DIN connects to the host SDA and CLK connects to the host SCL.
The DC pin can be used to change the I2C Address: Set Low, the I2C Address is :0x3C; Set High, the I2C Address is 0x3D.

Note: The demo is set as SPI mode by default, if you need to switch the mode, please modify the DEV_Config.h. See demo description - underlying hardware interface - interface selection for more details.

Package Content
2.42inch OLED Module x1
GH1.25 7PIN cable x1

Online Development Resources /User Manual ://bit.ly/45LKn4c