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Electronics Quick question - LM3914

Discussion in 'Modding' started by tmod, 19 Jul 2004.

  1. tmod

    tmod What's a Dremel?

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    I've got a common cathode bargraph display...which means, from what I've read, it won't work with an LM3914. Am I wrong? If I'm not, any simple alternative solutions? I'd like to still use the bargraph I have.
     
  2. acrimonious

    acrimonious Custom User Title:

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    Stick an octal inverter between the IC and the LED array.
     
  3. tmod

    tmod What's a Dremel?

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    I knew there'd be a good solution here. Thanks! :thumb:

    EDIT: Is the 74HC540 what I'm looking for?
     
    Last edited: 19 Jul 2004
  4. whypick1

    whypick1 The über-Pick

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    Nope, need something that can supply a bit more juice on the outputs, like the 74ACT04
     
  5. cpemma

    cpemma Ecky thump

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    This a 10-led display? 2 hex cheaper/less bulky than 2 octopi, lots of choice. ;)

    whypick1 beats me to the tape :p
     
  6. tmod

    tmod What's a Dremel?

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    @ whypick1 - that looks good, but I'd imagine something with all the outputs on one side would make it a bit easier to build on stripboard, I'll check for one

    @ cpemma - yes, it is a 10-led display

    Hmm, looks like only the octal inverters have the outputs on one side. I'll probably just stick with the hex inverters though.
     
    Last edited: 19 Jul 2004

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