This 2.42" 128x64 Monochrome OLED Display provides crisp white graphics with high contrast and no backlight, with support for SPI, I2C or 8-bit communication and an included level shifter for 3V or 5V logic.
If you've been diggin' our monochrome OLEDs but need something bigger, this display will delight you!
These displays are 2.42" diagonal, and very readable due to the high contrast of an OLED display. This display is made of 128x64 individual white OLED pixels, each one 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 graphic display for its crispness!
The driver chip, SSD1305 can communicate in three ways: 8-bit, I2C or SPI. Personally we think SPI is the way to go, only 4 or 5 wires are required and its very fast.
The OLED itself requires a 3.3V power supply and 3.3V logic levels for communication. We include a breadboard-friendly level shifter that can convert 3V or 5V down to 3V, so it can be used with 5V-logic devices like Arduino.
The power requirements depend a little on how much of the display is lit but on average the display uses about 50mA from the 3.3V supply. Built into the OLED driver is a simple switch-cap charge pump that turns 3.3V into a high voltage drive for the OLEDs.
Each order comes with one assembled OLED module with a nice bezel and 4 mounting holes. The display is 3V logic & power so we include a HC4050 level shifter. We also toss in a 220uF capacitor, as we noticed an Arduino may need a little more capacitance on the 3.3V power supply for this big display! This display does not come with header attached but we do toss in a stick of header you can solder on. Also, the display may come in SPI mode. You can change modes from 8-bit to SPI or I2C with a little soldering, check out the tutorial for how to do so. Please Note:Metro not included! A microcontroller such an Arduino is required to use.
Getting started is easy! There is 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. 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.
Please note: Cable and code on back of board may vary but displays will work the same.
Please note that OLED displays are made of hundreds of...OLEDs! That means each pixel is a little organic LED, and if its kept on for over 1000 hours it'll start to dim. If you want to keep the display uniformly bright, please turn off the display (set the pixels off) when it isn't needed to keep them from dimming.
Features
2.42" diagonal monochrome OLED display with 128x64 resolution
High contrast and crisp graphics with self-emissive pixels, no backlight required
SSD1305 driver chip with multiple communication options: 8-bit, I2C, or SPI
3.3V power supply and logic levels required
Typical power consumption approximately 50mA at 3.3V
Includes breadboard-friendly HC4050 level shifter for 5V logic compatibility
Includes 220µF capacitor for stable power supply
Assembled module with protective bezel and 4 mounting holes
Header pins included but not pre-soldered
Arduino library with support for text, graphics, pixels, rectangles, circles, and lines
Requires microcontroller with minimum 512 bytes of RAM
Switchable communication modes via soldering (see tutorial)
Individual OLED pixels may dim after 1000+ hours of continuous use
Microcontroller not included, Arduino or equivalent required
Specifications
Screen Dimensions: 29 x 56 x 6.8mm
Screen Weight: 22g
Driving voltage: 3.3V
Interfaces: 8 parallel port, 4-wire SPI, I2C
Revision History
As of September 14, 2023 - this display has had a new design all specifications, pin layout and ic chip SSD1309 are same as previous edition.
