SKU: SENS-2942
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DFRobot Fermion 0.91" 128×32 I2C OLED Display Module

₹899.00 (Inclusive of all taxes)
Out of Stock

The DFRobot Fermion 0.91″ OLED display module features a 128×32 pixel monochrome screen driven by an SSD1306 controller with I2C interface, offering high contrast and low power consumption for integration with Arduino, ESP32, and other 3.3V/5V microcontrollers.

Features

  • 0.91-inch monochrome OLED with 128×32 self-illuminating white pixels.
  • SSD1306 driver with I2C communication interface (3.3V/5V logic compatible).
  • Ultra-low power consumption: ~25mA full-screen on, ~2mA full-screen off.
  • Compact footprint: 33mm x 20mm with 2mm mounting holes.
  • Wide operating temperature range: -30°C to +75°C.

Out of stock

Description

This compact OLED display module utilizes an SSD1306 driver chip to deliver Sharp Microelectronics, high-contrast monochrome graphics on a 0.91-inch diagonal screen. The I2C interface simplifies wiring, requiring only two signal lines (SDA, SCL) for communication with a wide range of microcontrollers, including Arduino UNO, ESP32, ESP8266, and STM32 platforms.

Designed for embedded systems, the module features a back chip-mounting pad for a low-profile installation and includes internal power-on reset circuitry for reliable initialization. Its low power profile makes it suitable for battery-powered wearable devices and portable instruments where display visibility and energy efficiency are critical.

Key Features

  • High-contrast, self-illuminating OLED display with 128x32 pixel resolution.
  • SSD1306 driver with I2C interface for simplified 2-wire communication.
  • Dual-voltage operation compatible with 3.3V and 5V logic systems.
  • Optimized power consumption: approximately 25mA active, 2mA in sleep mode.
  • Robust operating temperature range from -30°C to +75°C.
  • Compact form factor (33mm x 20mm) with integrated 2mm mounting holes.
  • Includes pre-soldered 4-pin 2.54mm header for rapid prototyping.
  • Internal power-on reset ensures stable display initialization.

Applications

  • Embedded system status displays for IoT devices and sensor nodes.
  • Wearable tech interfaces for fitness monitors and smart watches.
  • Desktop widgets for temperature, humidity, or air quality readouts.
  • Miniature game consoles and portable electronic instruments.
  • Battery-powered kitchen scales and handheld measurement tools.

Technical Specifications

Display TypeMonochrome OLED
Display Diagonal0.91 inch
Resolution128 x 32 pixels
Driver ICSSD1306
InterfaceI2C
Supply Voltage3.3V to 5V DC
Active Current~25 mA
Sleep Current~2 mA
Operating Temperature-30°C to +75°C
Module Dimensions (L x W)33 mm x 20 mm
Mounting Hole Diameter2 mm
Pixel ColorWhite

Frequently Asked Questions

What is the communication interface of this OLED display?

The module uses a standard I2C (Inter-Integrated Circuit) serial communication interface. It requires connection of the SDA (data) and SCL (clock) lines to your microcontroller, along with power (3.3V or 5V) and ground. The I2C address is typically configurable via solder jumpers on the back of the module.

Is this display compatible with both 3.3V and 5V microcontrollers?

Yes, the module is designed for dual-voltage operation and is fully compatible with both 3.3V and 5V logic levels. You can power it directly from the 3.3V or 5V pin of your Arduino, ESP32, Raspberry Pi, or other development board without needing a logic level converter.

How do I prevent OLED burn-in or pixel degradation?

To prevent uneven pixel aging and burn-in, implement a screen saver routine or turn the display off when not actively showing information. The SSD1306 driver supports commands to put the display into a low-power sleep mode, which significantly reduces current draw and extends the OLED's operational lifespan.

What libraries are available to drive this display with Arduino or ESP32?

Popular libraries include Adafruit_SSD1306 and U8g2. These libraries provide comprehensive functions for drawing text, shapes, and bitmaps. Ensure you configure the library for the correct I2C address and the 128x32 resolution. Example code is readily available from DFRobot and the library repositories.

Package Includes

  • 1 x DFRobot Fermion 0.91" 128x32 I2C OLED Display Module
  • 1 x 4-pin 2.54mm pitch male header

Additional Information

Weight 0.015 kg
Dimensions 3.3 × 2 cm