128x64 Graphic VFD (Vacuum Fluorescent Display) - SPI interface

SKU: ADA773 Brand: Adafruit

Retired Product

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This product has been retired. It is no longer available, but this page has been kept for reference.

For blue-glow lovers, this is a graphical VFD with 128x64 bit resolution and a stunning high-brightness/high-contrast look. This module would be a great addition to any project where readability is a must - you can read it in daylight, and at any angle.

The VFD module supports both 8-bit parallel and SPI modes of communication. The SPI protocol allows to write and read pixels so no RAM is required to buffer the display (most 128x64 SPI displays require a full 1K RAM buffer since you cannot read from the display memory). The module requires 5V, and does draw quite a bit of current, up to 500mA. There is a VFD driver and 60V boost circuit on the back. You can probably use 3.3V logic to communicate with the module, as long as it is powered with 5V

Of course, Adafruit wouldn't leave you with a datasheet and a "good luck": Adafruit have a detailed tutorial and example code in the form of an Arduino library for text, bitmaps and graphics.

You can download Adafruit's VFD graphic display Arduino library from github which comes with example code. The library can print text, bitmaps, pixels, rectangles, circles and lines. The code is simple to adapt to any other microcontroller.

Technical Details

Lots of technical details, including pinouts, diagrams, etc. in the App note

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