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Frank Milburn's Blog NSA1166 7-Segment 6-Digit Bubble Displays
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  • Author Author: fmilburn
  • Date Created: 21 Oct 2021 6:23 AM Date Created
  • Views 2889 views
  • Likes 0 likes
  • Comments 5 comments
  • led display
  • nsa1166
  • 7-segment
  • bubble display
  • display
  • arduino
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NSA1166 7-Segment 6-Digit Bubble Displays

fmilburn
fmilburn
21 Oct 2021

Jameco has these National Semiconductor NSA1166 7-segment 6-digit bubble displays and I bought a couple to distract me from what I should be doing.

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They are very simple to drive as each segment has its own pin that is driven high and each digit has a pin to act as the cathode.  I plan to write my own driver but like everything these days, there is an Arduino library that I am using at the moment.  It might make an interesting display for use with my milliohm meter project which is waiting patiently for me to return.

 

I tested one with my bench multimeter current limited to 3mA to start to make sure I knew which pins were which and then set it up with an Arduino MKR1010 and the SevSegPlus library.

image

 

It works!  Behold the mighty '70s technology!

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  • DAB
    DAB over 3 years ago

    Oldies but goodies.

     

    DAB

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  • fmilburn
    fmilburn over 3 years ago in reply to ralphjy

    I had forgotten how tiny they are...

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  • fmilburn
    fmilburn over 3 years ago in reply to javagoza

    Thanks - Jive doesn't like the way I copy/paste.  Fixed, I think :-)

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  • ralphjy
    ralphjy over 3 years ago

    Brings back old memories...  Well, almost.  I built a calculator using a similar display and a keypad, but I can’t remember which calculator chip that I used or any of the other details.

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  • javagoza
    javagoza over 3 years ago

    Thanks for sharing.

    For some reason the links don't work. When redirecting, jive ignores the ":" that should follow "https".

     

    NSA1166: National Semiconductor : LED Display 7-Segment Red 0.10 Inch 6-Digit 1.65V 5mA 2 Inch Long : Opto & Illumination (jameco.com)

     

    8bitkick/SevSegPlus: Improved Arduino seven segment LED display library for NSA1166 (github.com)

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