The 0.96-inch OLED Display Module (4-pin version) is a compact, high-contrast display commonly used in embedded systems for displaying text, icons, and simple graphics. This variant uses the I²C interface with only four pins, making it ideal for projects where GPIO availability and wiring simplicity are important. OLED technology eliminates the need for a backlight, resulting in low power consumption and excellent readability.
Core Display Specifications
• Display Type: OLED (Organic Light Emitting Diode)
• Display Size: 0.96 inch
• Resolution: 128 × 64 pixels
• Display Color: Monochrome (White / Blue / Yellow-Blue, module dependent)
• Driver IC: SSD1306 (most common)
Electrical & Interface
• Operating Voltage: 3.3 V – 5 V
• Logic Level: 3.3 V / 5 V compatible
• Communication Interface: I²C
• I²C Address: 0x3C (default), 0x3D (optional)
• Interface Pins (4-Pin): VCC, GND, SDA, SCL
Performance Characteristics
• High contrast with true black pixels
• Wide viewing angle
• Fast response suitable for text and simple animations
• Very low power consumption compared to LCD displays
Physical Characteristics
• Module Type: PCB-mounted OLED display
• Screen Size: 0.96 inch diagonal
• Pin Count: 4-pin header
• Compact and lightweight form factor
Compatibility
• Arduino Uno / Nano / Mega
• ESP8266 / ESP32
• STM32, AVR, PIC microcontrollers
• Raspberry Pi via I²C bus
Key Advantages
• Requires only two signal lines (SDA, SCL)
• Simple wiring and fast integration
• No backlight, reduced power usage
• Widely supported by open-source libraries
Technical Insights
• SSD1306 controller handles display timing internally
• I²C interface simplifies hardware connections
• Multiple devices can share the same I²C bus
• Pull-up resistors usually provided on the module
Applications
• IoT device displays
• Sensor data monitoring
• Wearable electronics
• Status and menu screens
• DIY and educational embedded projects
Pro Tip
• Always scan the I²C bus to confirm the display address
• Adjust contrast in software for best readability
• Avoid displaying static images continuously to reduce burn-in
Package Includes
• 1 × 0.96″ OLED Display Module (4-Pin I²C)