0.91" OLED I2C Display (128x32)
Compact 0.91-inch monochrome OLED display module with 128x32 pixel resolution and SSD1306 driver. Communicates over I2C interface, ideal for small status readouts and embedded projects.
$5.99
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Specifications
Components
128x64/128x32 monochrome OLED driver with I2C and SPI interface, built-in charge pump, and 1KB GDDRAM
Bus Interfaces
Overview
The 0.91" OLED I2C Display is a compact monochrome display module featuring a 128x32 pixel resolution. Built around the SSD1306 driver IC, it communicates over the I2C bus using just two data lines (SDA and SCL), making it extremely easy to integrate with Arduino, ESP32, Raspberry Pi, and other microcontroller platforms.
Key Features
- Ultra-compact form factor — 0.91-inch diagonal, perfect for space-constrained projects
- High contrast OLED — self-emissive pixels with true blacks, no backlight needed
- Simple I2C interface — only 4 pins required (VCC, GND, SDA, SCL)
- Wide viewing angle — OLED technology provides excellent visibility from any angle
- Low power consumption — individual pixel control means only lit pixels draw power
Typical Applications
- Status displays for IoT sensor nodes
- Battery level and signal strength indicators
- Small data readouts (temperature, humidity, time)
- Wearable electronics and portable instruments
- Menu displays for embedded systems
Pinout
| Pin | Function |
|---|---|
| VCC | 3.3V–5V Power |
| GND | Ground |
| SDA | I2C Data |
| SCL | I2C Clock |
Library Support
Compatible with popular Arduino libraries including Adafruit SSD1306, U8g2, and SSD1306Ascii. Also supported by MicroPython, CircuitPython, and ESP-IDF frameworks.
Use Cases
5Embedded UI
Embedded graphical user interfaces for touchscreen devices, control panels, and custom displays.
IoT Prototyping
General-purpose IoT development board suitable for rapid prototyping of connected devices, sensor nodes, and wireless applications.
data-display
Weather Station
A device that displays current weather conditions and forecasts, typically using WiFi to fetch data from weather APIs.
sensor-readout
Where to Buy
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