Grove - Circular LED
  • Grove - Circular LED
  • Grove - Circular LED
  • Grove - Circular LED

Grove - Circular LED

SKU 104030013
  • Circular shape
  • 24 LEDs, about 5.5 mA drive current for each channel.
  • Controllable LEDs with florid effects
  • Grove Interface.
    $12.90
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    Description



    This is a unique ring - it has a florid body with 24 controllable LEDs. Maybe it will drive the inspiration out of you to make a glowing magic ring! There is a 1*1 square hollow-out in the middle of this module, where you can place a Grove - Encoder in and make it a rotary visual encoder!  


    Features

    • Circular shape

    • 24 LEDs, about 5.5 mA drive current for each channel.

    • Controllable LEDs with florid effects

    • Grove Interface.


    Specification

    • Voltage: 4.5V~5.5V

    • Current: 5.5mA (for each LED)

    • Dimension: 4.5cm (ring diameter)

    • Net Weight: 12g


    For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your using of the product.


    Documents

    Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. For technical support, please post your questions to ourforum.

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    Questions and Answers
    SUBMIT
    0

    Hi can I connect 3 of theses with 3 Encoder to a single Arduino Uno Rev 3 with Grove Base shield V2?

    on Oct 19,2016
    Replyupvote ()

    The encoder library uses an interupt so you would have to write your own modifications to be able to use more than one encoder at a time. It takes two digital lines each for the encoder and the CircularLED. Three sets of them would require 12 digital l

    on Oct 20,2016 10:52 AM
    Replyupvote ()
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    0

    I can't bring it up!?

    I download library from http://www.seeedstudio.com/wik... and got complier error.

    I mark these 2 link to make it complier success, but t

    on Oct 19,2016
    Replyupvote ()
    0

    Are you planning for a RGB version of this?

    on Oct 19,2016
    Replyupvote ()

    That's a good suggestion, we would take it into a consideration. Thanks for your attention.

    on Oct 20,2016 10:48 AM
    Replyupvote ()
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    0

    Hey, where'd my link go? https://www.facebook.com/photo...

    on Oct 19,2016
    Replyupvote ()
    0

    Fun with Circular LED:

    on Oct 19,2016
    Replyupvote ()
    0

    From looking at the MY9221 data sheet, it looks like this device ought to work on 3.3V. Has anyone operated one at 3.3V?

    Several of these would make a great addition to a"wearable"project.

    on Oct 19,2016
    Replyupvote ()

    Hi~It seems can not run this device at 3.3V.and you can refer to the Description Voltage: 4.5V~5.5V.with a nice day~

    on Oct 20,2016 10:46 AM
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    0

    The square hole in the middle is what I was initially trying to figure out. It says 1x1 above, and I'm not sure if that's supposed to be in cm or not, but the encoder's dimensions are stated as 20x20mm. Further, I can't see how the ring diameter on thi

    on Oct 19,2016
    Replyupvote ()

    Hi , the diameter is incorrect , it should be 4.5cm

    on Oct 20,2016 10:44 AM
    Replyupvote ()

    The square in the center is 1.5 cm x 1.5 cm. Please read my comment above about trying to use these displays with the 16 MHz or slower Arduinos. They work just fine with the faster 260 MHz LinkIt ONE board.

    on Oct 20,2016 10:52 AM
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