Interfacing Arduino with an HP LED display from the ’70s

Posted on Monday, April 9th, 2012 in DIY, LEDs by DP

John demonstrates how to interface a vintage LED display with the Arduino. The display in question is a HP 5082-745 model, found in calculators, and other products from this manufacturer in the ’70s.

Using the display is very easy – kudos to the engineers at HP for making a simple design that could be reusable in many applications. The 5082-7415 is a common-cathode unit and wiring is very simple – there are the usual eight anodes for segments a~f and the decimal point, and the five cathodes.

This entry was posted on Monday, April 9th, 2012 at 9:03 pm and is filed under DIY, LEDs. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

8 Responses to “Interfacing Arduino with an HP LED display from the ’70s”

  1. Matt says:

    Here’s some code with links to wiring for HDSP 2111s.

    And Thanks. I have about 100 of these at my apt. =D

  2. Jerry Jeffress says:

    Ahhh… the memories, I used hundreds of these making custom Motion Control Systems for the movies in the 70’s and 80’s. The birth of a new age….

  3. jon says:

    Hi, nice display!

  4. Kevin says:

    This display reminds me of a calculator my Dad had when I was growing up. I think it was the HP-65. He said it was pretty expensive… I wonder if that thing is still at my parents house, I would love to have it, now.

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