A compact 0.91-inch monochrome OLED display module with 128×32 white self-illuminating pixels, driven by the SSD1306 over I2C. The chip-on-back pad design and ultra-narrow PCB (41 × 12 mm) make it ideal for wearables, mini consoles, and space-constrained embedded projects where a small, clear display is needed.

The module features internal power-on reset, low power consumption (25 mA at full brightness), and compatibility with Arduino Uno, Leonardo, ESP32/ESP8266, and other 3.3–5 V microcontrollers. The rear solder pad design simplifies wiring for custom integrations.

Key Features

• 0.91-Inch OLED – 128×32 white self-illuminating pixels, no backlight required
• SSD1306 Driver – Widely supported with Arduino, CircuitPython, and MicroPython libraries
• I2C Interface – Only 4 wires (VCC, GND, SDA, SCL)
• Chip-On-Back Pad Design – Rear solder pads for compact, custom mounting
• Ultra-Narrow PCB – Just 41 × 12 mm, fits tight spaces
• Low Power – 25 mA full-screen on, 2 mA full-screen off
• Internal Power-On Reset – No external reset circuit needed

Specifications

• Resolution – 128 × 32 pixels
• Colour – White (monochrome)
• Driver Chip – SSD1306
• Interface – I2C
• Operating Voltage – 3.3–5 V
• Brightness – 180 cd/m² (typical)
• Current (Full On) – ~25 mA
• Current (Full Off) – ~2 mA
• Operating Temperature – −30 °C to +70 °C
• Display Area – 22.38 × 5.58 mm
• Module Dimensions – 41 × 12 mm
• Weight – 2.2 g

Ideal For

• Wearable display devices
• Mini game consoles and desktop widgets
• Sensor readouts and status displays
• IoT devices with limited board space

Resources

• Product Wiki