I just saw the first video of the GPS-Driven, FPGA-Decoded Nixie Tube Speedometer created by Luke Miller (a.k.a. The FPGA Expert):
As Luke says: "When I purchased a 1953 International pickup truck, I decided to add a digital speedometer. I elected to use Nixie tubes because they have an appropriate vintage feel and bring a warm, fuzzy feeling to the party. Furthermore, I decided to use a GPS unit that would let me determine my speed without hacking into my speed cable or cobble Hall effect sensors and the like together."
Luke has been describing the construction of this little beauty as a series of blogs (Click Here to see these blogs). The end result is a thing of beauty:
I'd love one of these in my own truck, and I can’t wait to see the follow-up video showing the Nixie tube implementation in action!
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GPS module already contains some kind of procesor, which is capable of driving NIXI tube's driver. Of course it will require to integrate custom code with GPS firmware, this may be at least expensive. Otherway FPGA is really pain is the ass, in such simple project, where 8bit microcontroller will be much cheaper and easier to applicate.
@Nnanci: what are some of the modern day practical uses of nixie tubes
Before 7-segment LED displays came on the scene, Nixie tubes were the height of technology. Today, I don't know about "practical uses of Nixie tubes," I just knwo that they look really cool and retro. For example, I LOVE my nixie-tube watch from Cathode Corner
I love Nixie Tubes -- you are absolutely right that it gives the right vintage feel as an add-on to an old truck. Funny, though, when I've seen the Nixie tube watches I feel like they look very futuristic!!!