1.51 inch transparent OLED display works on GDI or SPI interface

We’ve seen see-through, see-through screens at least since 2010 for retail apps, and over the years these types of see-through screens or variants have been incorporated into consumer devices such as smartwatches and smartphones. without notch.

But I don’t think I’ve ever seen transparent displays for the maker market, and DFRobot Fermion is a 1.51 inch transparent OLED display with 128×64 resolution which is connected to the host MCU via the SPI interface or GDI (General Display Interface).

Fermi specifications:

  • 1.51 inch transparent OLED display with blue pixels based on SSD1309 driver
  • Resolution – 128×64 (transparent part: 128×56)
  • Display Interface – 8-bit 68xx/80xx parallel, 3/4-wire SPI, I2C
  • Adapter interface – SPI, GDI
  • Operating voltage – 3.3V
  • Dimensions
    • Screen Size – 41.92 x 27.08mm
    • Display area – 35.05 x 15.32mm
    • Pixel Pitch – 0.274 x 0.274mm
    • Pixel Size – 0.254 x 0.254mm
    • Adapter size – 18 x 28 mm / 0.71 x 1.10 inch
  • Temperature range – -40~70°C
fermion transparent display GDI and SPI connection
Two connection methods: GDI (left) and SPI (right)

There are two ways to connect the display to a development board with the supplied adapter using headers and jumper cables for SPI which should be compatible with most platforms, ribbon cable with a GDI connection to a card such as DFRobot Firebeetle ESP32-E card with a specific connector for connecting external screens.

OLED display, English, Chinese, Japanese

Programming can be done with the Arduino IDE and Arduino U8g2 Libraryas explained in the wiki where you will also find Arduino sketches to manage fonts, graphics and multiple languages, as well as hardware documentation. The best way to see what it looks like in action is with a short demo.

A 1.51-inch Fermion transparent OLED display can be purchased on DFRobot for $34.90 plus shipping.

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