Monochrome 2.7 128x64 OLED Graphic Display Module Kit

If you love our monochrome OLEDs and need a larger one, this 2.7-inch diagonal display is a great choice. With high contrast from the OLED tech, it's super readable. It's made of 128x64 individual white OLED pixels controlled by a chip. Since it emits its own light, no backlight is needed, saving power and giving it amazing contrast. We really dig its sharpness! The SSD1325 driver chip can communicate via 8-bit or SPI. We recommend SPI as it only needs 4 or 5 wires. The OLED runs on 3.3V power and 3.3V logic levels. We include a breadboard-friendly level shifter for 5V-logic devices like Arduino. Power usage varies but averages 50 - 150mA from the 3.3V supply. There's a boost converter in the OLED driver that might make noise, which can be reduced with hot-glue or foam tape. Each order comes with an assembled OLED module with a nice bezel and 4 mounting holes. We also include a 74HC4050 level shifter, a 220uF capacitor, and a stick of header. The display may come in 8-bit mode, and you can switch to SPI with a bit of soldering. It's easy to get started! We have a detailed Arduino library with example code for text and graphics. You'll need a microcontroller with over 1K of RAM. The library can print all sorts of things and is very fast. The code can be easily adapted to other microcontrollers.

Using this display is a breeze. First, make sure your microcontroller has more than 1K of RAM as the display needs buffering. Connect the display using the SPI mode for simplicity, which only requires 4 or 5 wires. If you're using a 5V - logic device like Arduino, use the included level shifter to convert the voltage to 3.3V. The display comes with a 220uF capacitor which helps with the power supply. If you hear a squeaking or buzzing noise from the boost converter, you can try adding hot - glue or foam tape around the inductor to reduce it. The display may come in 8 - bit mode, but you can change it to SPI by doing a little soldering. Check out our detailed tutorial for how to do that. When it comes to programming, use our Arduino library. It can print text, bitmaps, pixels, rectangles, circles, and lines. You can easily adapt the code to other microcontrollers. As for maintenance, keep the display away from excessive heat and moisture. If you're not using it for a long time, store it in a dry and cool place.