Resources:

Schematic
KiCad Files
Hookup Guide
Datasheets

WEO128128HWAP3N00000
CH1120

GitHub Repository

SparkFun Qwiic 1.5 Inch OLED Display with 128128 Resolution for Compact Embedded Interfaces
The SparkFun Qwiic 1.5 inch OLED Display delivers a clean, high-contrast visual interface in a compact square form factor suitable for embedded systems and portable electronics. With a 128128 pixel resolution and a true 1:1 aspect ratio, this monochrome white-on-black display is well suited for custom graphics, text rendering, icons, and real-time data visualisation. Built using Chip-on-Glass (COG) OLED technology, each pixel emits its own light, eliminating the need for a backlight and enabling deeper blacks, wide viewing angles, and low power consumption. Qwiic I2C connectivity allows quick, solder-free integration with Arduino, Raspberry Pi, and other microcontroller platforms, making it ideal for dashboards, sensor readouts, wearables, and compact user interfaces.
Key Features:

Display Size: 1.5 inch square OLED display for space-constrained designs
Resolution: 128128 pixels with high pixel density and sharp output
Display Technology: Monochrome OLED using Chip-on-Glass (COG) construction
Colour Scheme: White-on-black for high contrast and excellent readability
Aspect Ratio: True 1:1 ratio suitable for graphical layouts and plotting
Interface: Qwiic I2C interface for easy plug-and-play connectivity
Power Efficiency: Self-emissive pixels remove the need for a backlight
Application Use: Ideal for embedded UIs, data monitoring, IoT devices, and prototyping.