Thing #11

Today, I thought I would do more tinkering. A while back, I salvaged a Vacuum Fluorescent Display (VFD) from an old, old, old office phone. A VFD is basically a type of vacuum tube that is used to display information. They are often seen in old videocassette recorders, adding machines, cash registers and scales.

I found an explanation of how to build a driver for such a device, and aside from all the tedious wiring, it was not difficult to put together.

VFD

Unfortunately, my good old Basic Stamp microcontroller is not up to the timing requirements of such a device, so it only displays gibberish.

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