There is no USPS pickup on Monday February 20, 2017 because of the federal holiday Presidents' Day. USPS orders placed after 11am EST Friday February 17th will go out Tuesday February 21. UPS orders will ship as normal.

Monochrome 128x32 I2C OLED graphic display

  • Description


    These displays are small, only about 1" diagonal, but very readable due to the high contrast of an OLED display. This display is made of 128x32 individual white OLED pixels, each one is turned on or off by the controller chip. Because the display makes its own light, no backlight is required. This reduces the power required to run the OLED and is why the display has such high contrast; we really like this miniature display for its crispness!

    The driver chip SSD1306, communicates via I2C only. 3 pins are required to communicate with the chip in the OLED display, two of which are I2C data/clock pins.

    The OLED and driver require a 3.3V power supply and 3.3V logic levels for communication. To make it easier for our customers to use, we've added a 3.3v regulator and level shifter on board! This makes it compatible with any 5V microcontroller, such as the Arduino.

    The power requirements depend a little on how much of the display is lit but on average the display uses about 20mA from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3v-5v into a high voltage drive for the OLEDs, making it one of the easiest ways to get an OLED into your project!

    Of course, we wouldn't leave you with a datasheet and a "good luck": We have a detailed tutorial and example code in the form of an Arduino library for text and graphics. You'll need a microcontroller with more than 512 bytes of RAM since the display must be buffered.

    You can download our SSD1306 OLED display Arduino library from github which comes with example code. The library can print text, bitmaps, pixels, rectangles, circles and lines. It uses 512 bytes of RAM since it needs to buffer the entire display but its very fast! The code is simple to adapt to any other microcontroller.

  • Technical Details

    Technical Details+

    Datasheet, EagleCAD PCB files, and Fritzing available in the product tutorial


    • PCB: 20mm x 35mm (0.8" x 1.4")
    • Display area: 7mm x 25mm
    • Thickness: 4mm

    Display details:

    • Diagonal Screen Size:0.91"
    • Number of Pixels:128 × 32
    • Color Depth:Monochrome (White)
    • Module Construction:COG
    • Module Size (mm):46.30× 11.50 × 1.45
    • Panel Size (mm):30.00 × 11.50 × 1.45
    • Active Area (mm):22.384 × 5.584
    • Pixel Pitch (mm):0.175 × 0.175
    • Pixel Size (mm):0.159 × 0.159
    • Duty:1/32
    • Brightness ( cd/m2):150 (Typ) @ 7.25V
    • Interface:I2C
    • Display current draw is completely dependent on your usage: each OLED LED draws current when on so the more pixels you have lit, the more current is used. They tend to draw ~15mA or so in practice but for precise numbers you must measure the current in your usage circuit.
    • This board/chip uses I2C 7-bit address 0x3C
  • Learn


    How to use a SSD1306 OLED display with MicroPython boards.
    Build a small meter to display voltage, current, and power usage.
    Use the Adafruit FT232H USB to GPIO / SPI / I2C breakout with Adafruit's SPI & I2C devices.
    Add a beautiful, bright OLED display to your Raspberry Pi or BeagleBone Black project!
    Show the volume of liquid in a measuring cup on a web page!
    Using our small mono-OLED displays