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)

nixie bargraph thermometer

Links

Thanks for sharing, Jürgen!

Comments   

#1 Bob Coggeshall 2011-02-08 03:05
Very Nice. I take academic issue with the use of the term "nixie", but no one would care.
#2 Brian Stuckey 2011-02-08 03:22
Quoting Bob Coggeshall:
Very Nice. I take academic issue with the use of the term "nixie", but no one would care.


Sorry about the term abuse :)
+1 #3 Guest 2011-02-08 04:25
Jurgen's a genius! Great stuff...I'm definitely getting one if they go on sale!
+1 #4 Guest 2011-02-12 17:50
You know what would make this perfect. Put 2 IN-17's at the base that would display the temperature in either F or C
#5 Guest 2011-02-15 02:25
Great! I am getting 5 of these for a few friends too! Next weeks I hope!
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