0.91 Inch OLED Display Module Blue Liquid Crystal Screen 128x32 Dots SSD1306BZ Driver IC 15 Pins 4-Wire SPI COG Structure P12832-4-W15P091 for Embedded Projects
0.91 Inch OLED Display Module Blue Liquid Crystal Screen 128x32 Dots SSD1306BZ Driver IC 15 Pins 4-Wire SPI COG Structure P12832-4-W15P091 for Embedded Projects
0.91 Inch Blue OLED Display 128x32 COG Module with SSD1306BZ Driver
This 0.91-inch OLED display module offers a compact, low-power solution for embedded projects needing a clear blue monochrome screen. With 128x32 dot resolution and a chip-on-glass (COG) structure, it fits easily into handheld devices, instrumentation panels, and DIY electronics. The module uses a 4-wire SPI interface controlled by the SSD1306BZ driver IC, ensuring fast and reliable communication with microcontrollers. Its small footprint (30.0mm by 11.50mm) and lightweight design make it ideal for space-constrained applications where visual feedback is essential.
Features and Construction
This OLED module combines a blue liquid crystal display with a robust COG construction for reliable performance in compact environments.
Material and Build
The display uses a glass panel with an integrated SSD1306BZ driver IC mounted directly on the glass (chip-on-glass). The panel dimensions are 30.0mm wide, 11.50mm tall, and 1.227mm thick, providing a slim profile for tight enclosures. A 15-pin connector allows secure attachment via standard ribbon cable or header pins.
Display Specifications
The active display area measures 22.384mm by 5.584mm, with a total field of view of 24.384mm by 7.584mm. Resolution is 128 columns by 32 rows of blue pixels, suitable for text, simple graphics, or status indicators. The diagonal screen size is 0.91 inches.
Interfaces and Compatibility
This module is designed for straightforward integration with common microcontrollers using a standard 4-wire SPI interface.
4-Wire SPI Interface
The 4-wire SPI serial interface uses minimal pins for data transfer: clock, data, chip select, and data/command. This reduces wiring complexity while maintaining adequate speed for static or low-refresh displays.
SSD1306BZ Driver IC
The SSD1306BZ controller manages all display operations, including pixel addressing, contrast control, and sleep mode. It is widely supported by Arduino, Raspberry Pi, and other hobbyist platforms, with many existing libraries available for rapid development.
Environmental and Electrical Details
The module is built to withstand a wide temperature range typical for industrial and outdoor embedded applications.
Temperature Tolerance
Operating temperature spans -40°C to 70°C, while storage temperature extends from -40°C to 85°C. This makes the display suitable for use in environments with significant thermal variation.
Power Efficiency
OLED technology consumes power only for lit pixels, making this module efficient for battery-powered devices. The driver IC also supports a sleep mode to further reduce current draw when the display is not in use.
