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.
* Arduino Library @ GitHub 
* PCB: 20mm x 35mm (0.8" x 1.4")
* Display area: 7mm x 25mm
* Thickness: 4mm
* 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
* Brightness ( cd/m2)：150 (Typ) @ 7.25V
* 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
* This board/chip uses I2C 7-bit address 0x3C
 https://github.com/adafruit/Adafruit_SSD1306 … more
|Product type||Electronics module|
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