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Arduino, potentiometer, MAX7221 & 16 leds

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Uploaded by on Feb 8, 2008

Interfacing a potentiometer and a MAX7221 with 16 leds (LED bar/VU meter). Everything is connected to an Arduino Diecimila.
More on: http://lab.xndr.com/

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Science & Technology

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Standard YouTube License

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All Comments (7)

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  • song?

  • @paraugs  If you go to the MAXIM website, you can get the 7221 and 7219 as free samples, you just need a company or educational email adress, they wont send them to Gmail/yahoo etcetera.

  • If you go to the MAXIM website, you can get the 7221 and 7219 as free samples you just need a company or educational email adress.

    A shift register will work aswell not neceasarilly in the same manner. I found the shift registers to work well but they are not specificly designed for turning on/off LEDs they are meant more for logic control.

  • Sounds like a broken washing machine in the background.

  • why a MAX7221, wouldn't two 595 shift registers have done the same thing?

  • Nice project! :)

    From where did you get the MAX7221?

  • broke?

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