Monochrome 2.3 128x32 OLED Graphic Display Module Kit

If you love our monochrome OLEDs and need a larger one, this 2.3-inch diagonal display is a great choice. With high contrast, it's very readable. It features 128x32 individual blue OLED pixels controlled by a chip. Since it emits its own light, no backlight is needed, reducing power consumption and enhancing contrast. The SSD1305 driver chip supports 8-bit, I2C, or SPI communication. We recommend SPI as it only needs 4 or 5 wires and is super fast. 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. On average, it uses about 50mA from the 3.3V supply. The built-in boost converter may make a noise, which can be reduced with hot-glue or foam tape. Each order comes with an assembled OLED module with a bezel and 4 mounting holes, a HC4050 level shifter, a 220uF capacitor, and a stick of header. It may come in 8-bit mode, and you can change it to SPI or I2C with a little soldering. We have a detailed Arduino library tutorial and example code for easy setup. You'll need a microcontroller with over 512 bytes of RAM as the display needs buffering. The library can print various graphics and is very fast, and the code is easy to adapt to other microcontrollers.

Using this display is a breeze. First, make sure your microcontroller has more than 512 bytes of RAM. Connect the display to your device using the recommended SPI communication method with just 4 or 5 wires. If you're using a 5V-logic device like Arduino, use the included level shifter. The display runs on 3.3V power, and we've included a 220uF capacitor as the big display may need a bit more capacitance. When you receive the display, it might be in 8-bit mode. You can change it to SPI or I2C by doing a little soldering. Check out our detailed Arduino library tutorial and example code to start using it right away. The library can print text, bitmaps, and all sorts of graphics. As for maintenance, if you hear a squeaking or buzzing noise from the boost converter, try adding hot-glue or foam tape around the inductor to reduce it. Remember, this display doesn't have a backlight because it emits its own light, which saves power and gives it high contrast.