Jürgen had been hard at work designing a new non-nixie gadget - a thermometer based on an IN-9 bar graph tube. This thing is cool. Not only is it a clean design, it is a fully analog device.
The six LEDs are simple connected in series with the tube. Every LED has also a parallel 100µF capacitor (these RGB LEDs uses their own PWM controller and connecting them in series is only possible with such a capacitor in parallel to every LED).
And one more feature I really like: it is USB powered. I can't wait for for this to go on sale. Check out the video:
{vimeo width="500" height="375"}19679959{/vimeo}
(video by Jürgen Grau)
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Thanks for sharing, Jürgen!
Comments
Sorry about the term abuse :)
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