0.42 Inch White OLED Display Module – 72x40 Resolution, I2C / IIC / SPI Interface

Take your electronics projects to the next level with this compact 0.42-inch White OLED Display Module. Featuring a crisp 72x40 pixel resolution and support for I2C, IIC, and SPI serial communication protocols, this micro display is an ideal choice for Arduino, Raspberry Pi, and other microcontroller-based builds. Its tiny footprint makes it perfect for wearables, compact gadgets, sensor readouts, and custom dashboards where space is at a premium.

Key Features

Display Type: OLED (Organic Light-Emitting Diode) — vivid white pixels on a true black background for strong contrast
Screen Size: 0.42 inches diagonal
Resolution: 72 x 40 pixels
Communication Interfaces: I2C / IIC and SPI — compatible with a wide range of microcontrollers
Driver IC: SSD1315
Customizable: Supports custom configurations for your specific project needs
Available Quantities: Single unit (1PCS) or value pack (5PCS) to suit hobbyists and developers alike
No backlight needed — OLED pixels are self-illuminating, saving power and improving visibility in low-light environments

Technical Specifications

Brand	baishundianzi
Model	0.42 Inch OLED Display LCD
Display Mode	72 x 40
Type	OLED
Interface	I2C / IIC / SPI (Serial)
Driver IC	SSD1315
Color	White

Who Is This For?

Whether you're a hobbyist building your first Arduino project or an experienced developer prototyping a wearable device, this OLED module delivers reliable performance in a remarkably small package. Its dual-interface support (I2C and SPI) means you can integrate it into almost any microcontroller ecosystem with minimal wiring.

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Frequently Asked Questions

Q: What communication protocols does the 0.42-inch OLED Display Module support?

A: This OLED display module supports both I2C (IIC) and SPI serial communication protocols, making it highly compatible with popular microcontrollers including Arduino, STM32, and Raspberry Pi platforms.

Q: What is the resolution of this OLED display, and is it suitable for text or graphics?

A: The module features a 72x40 pixel resolution. While compact, it is well-suited for displaying short text strings, icons, simple graphics, and sensor data readouts — ideal for small embedded systems and wearable electronics projects.

Q: Which driver IC does this OLED module use, and is it Arduino-compatible?

A: This display uses the SSD1315 driver IC and is fully compatible with Arduino. Many existing SSD1306-based libraries work seamlessly with the SSD1315, making integration into your Arduino sketches straightforward and quick.

Q: Can I buy multiple units of this OLED display module?

A: Yes! This product is available as a single unit (1PCS) or in a 5-piece value pack (5PCS), making it convenient for both individual project builders and developers who need multiple displays for batch prototyping.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.