DFRobot
Monochrome 0.91”128x32 I2C OLED Display with Chip Pad
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 an...
Get notified when back in stock
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
Jargon buster
Plain-language definitions for the technical terms used above.
- CircuitPython
- A beginner-friendly version of Python designed to run directly on microcontroller boards. If a product supports CircuitPython, you can often program it by copying code files onto the board rather than setting up a more complex toolchain.
- ESP32
- ESP32 is a family of low-cost microcontroller chips and modules from Espressif with built-in WiFi and Bluetooth. They support programmable firmware and over-the-air updates, and are commonly programmed with toolchains such as the Arduino core and ESP-IDF.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- IoT
- Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
- MicroPython
- A version of the Python programming language made to run on microcontrollers. It matters because it lets beginners write readable code to control LEDs, sensors, motors and displays without needing to start with lower-level languages.
- OLED
- OLED stands for organic light-emitting diode, a display type where each pixel produces its own light. It matters because OLED screens are thin, high-contrast and easy to read for small status displays, but they can be more sensitive to image burn-in than some other display types.
- PCB
- A printed circuit board (PCB) is a board, usually rigid, with etched copper tracks that connect electronic components together without loose wiring. Components are mounted on the board and signals route between them through the copper layout.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
Find this product in
Brands
Displays & Screens
Supplier page — dfrobot.com
Supplier Description · 893.5 KB · Click any page to view full size
DFR0647 fermion ssd1306 oled module schematics V1.0
Schematic · 1.2 MB · Click any page to view full size
DFR0647 fermion ssd1306 oled module datasheet V1.0
Datasheet · 1.8 MB · Click any page to view full size
Resources & Downloads
Guides, code examples, and more
Related Tutorials
Free guides on learn.littlebird.com.au
