Compact, High-Contrast Visuals for Your DIY Projects Upgrade your microcontroller projects with this crisp 0.91-inch OLED Display Module. Despite its small form factor, the 128x32 resolution offers incredibly sharp text and graphics, thanks to self-emitting OLED technology that requires no backlight. Powered by the popular SSD1306 driver chip, this module uses the I2C interface, requiring only 2 data pins (SCL/SDA) to connect to your Arduino, ESP32, ESP8266, or Raspberry Pi. Its wide voltage compatibility (3.3V to 5V) makes it versatile for various power systems. Key Features: Ultra-Compact: Ideal for wearables, portable instruments, and small IoT devices. High Visibility: OLED technology provides deep blacks and high contrast (available in White or Blue text). Easy Interface: Standard I2C communication saves GPIO pins on your microcontroller. Low Power: Energy-efficient design suitable for battery-operated devices. Technical Specifications: Driver IC: SSD1306 Resolution: 128 x 32 Pixels Interface: IIC / I2C (I2C Address usually 0x3C) Display Color: Available in White or Blue Working Voltage: 3.3V - 5V DC Viewing Angle: > 160° Dimensions: Approx. 37.2mm x 12.2mm Pin Definition: GND: Power Ground VCC: Power Positive (3.3V-5V) SCL: Clock Line SDA: Data Line