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Forum Seeking Feedback for Kit on Upcoming LED Design Challenge
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Forum Thread Details
  • Replies 22 replies
  • Subscribers 14 subscribers
  • Views 1487 views
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  • design challenge
  • würth
  • IC-LED
Related

Seeking Feedback for Kit on Upcoming LED Design Challenge

rscasny
rscasny 7 months ago

imageHi All.

As the new year moves on, so does element14's scheduling of new Design Challenges. That's what I want to talk to you about today. Specifically, an LED-focuses challenge. 

We haven't done much with lighting/LEDs (although Tariq may have when he managed Project14), but I have a sponsor who is interested in such a challenge. So, I'm exploring here how to make it work, both in terms of your interest in this activity, a propose challenge kit, as well as any theme it would cover.

In this discussion, I wanted to do a few things. For starters, to share with you the parts the challenge's sponsor would like to see in the design. Now, that does not limit us from adding parts to the kit. The next thing I want to do was flesh out the challenge's objective. Let me start with the parts. There's just a few of them:

1315050930002 LED, AlInGaP, InGaN, Red, Green, Blue, SMD, 120 °, Round, R 13mA, G 13mA, B 13mA

More Info

1313210530000 LED, AlInGaP, InGaN, Red, Green, Blue, SMD, 120 °, Dome, R 5.5mA, G 5.5mA, B 5.5mA

More Info

1312020030000 LED, AlInGaP, InGaN, Red, Green, Blue, SMD, 120 °, Square, R 5.5mA, G 5.5mA, B 5.5mA

More Info

1312121320437 LED, AlInGaP, InGaN, Red, Green, Blue, SMD, 110 °, Square, R 20mA, G 20mA, B 20mA

More Info

Click on this link to see the manufacturer's documentation for these products.

Here's a dual wire diagram for the product:

image

So, the above is kind of bare bones. I expect that there will be much more in the kit depending what the challengers would like to do. Now, what element14 would also include in the challenger's kit would depend on what you would want to do. A few random thoughts about it are:

  • Creative Lighting
  • LED Indication
  • LED Alerting
  • LED Alarming

The sponsor calls out what they see as the leading applications of their LEDS. They are:

  • Appliances
  • Industrial Control
  • Smart Lighting
  • Gaming
  • Decorative Lighting

Now is a good time for a poll:

So, I've offered a lot of information to chew about.

Just for myself, I think it would be fun to do something along the lines of Creative or Decorative Lighting. I would need to include prototyping gear, as well as a kit of support components. Enclosures I would probably not provide since many of you have 3D printers and have that capability; I also would probably not offer any test equipment as part of the kit, but you can always wish for it! I'd probably like to see some PCBs designed and built, with whatever solution you have available.

Now, if you were more interested in something more practical, the designs would require a larger and probably more extensive kit. I'm thinking industrial control panels etc. 

Thanks you for participating in the element14 Communities activities.

What Do you think? If you have the time, please vote in my poll and/or leave a comment.

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Top Replies

  • Gough Lui
    Gough Lui 7 months ago in reply to scottiebabe +2
    That is interesting, but I suspect the current gain 12-bit value is intended for use in white point colour balancing or global array dimming applications, while the PWM level 12-bit value should be the…
  • dougw
    dougw 7 months ago +1
    These devices would be great for decorative lighting applications, the more devices the merrier, literally. A 5V controller like an UNO R4 Minima would allow lots of creative effects. Beyond the LEDs…
  • vmate
    vmate 7 months ago +1
    Wurth Elektronik has horticulture LEDs too, maybe it would be interesting to have a challenge involving growing plants with artificial light?
Parents
  • beacon_dave
    beacon_dave 7 months ago

    You might make the challenge more accessible if you can provide some pre-mounted on an evaluation board. Strips of say 10 that can be used as is as a strip or be snapped off into into singles that can be used in breadboard/protoboard or soldered into wire strings.  

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  • vmate
    vmate 7 months ago in reply to beacon_dave

    They have a Lighting Development Kit, which has PCBs kind of like what you described, along with driver boards.

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  • vmate
    vmate 7 months ago in reply to beacon_dave

    They have a Lighting Development Kit, which has PCBs kind of like what you described, along with driver boards.

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Children
  • beacon_dave
    beacon_dave 7 months ago in reply to vmate

    I was thinking more along the lines of pre-mounted to a carrier board something a bit like this:
    image
    5050 LED breakout PCB - 10 pack
    https://www.adafruit.com/product/1762

    but say ≈10 prewired together into a LED pixel strip or matrix that can be snapped apart at each LED something a bit like:
    image
    Breadboard-friendly RGB Smart NeoPixel - Sheet of 25
    https://www.adafruit.com/product/1558

    but with the data and power pre-wired across the snap points which then allows you to use it for testing as is but with the ability to snap it apart to use it with breadboard/protoboard or as part of a LED pixel wire string something a bit like this:
    image
    Breadboard-friendly RGB Smart NeoPixel - Pack of 5
    https://www.adafruit.com/product/1312

    to be able to incorporate it into the final project which may require different spacings.

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  • scottiebabe
    scottiebabe 7 months ago in reply to beacon_dave

    One of their LEDs is a 1616, that's not very big.

    What would you do with a 1010 addressable LED

    image

    Tiny!

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  • beacon_dave
    beacon_dave 7 months ago in reply to scottiebabe

    Loads of possibilities there.

    Might work for my infinity mirror Xmas tree bauble idea Slight smile

    There are also jewellery applications as demonstrated by mitxela: 

    https://www.youtube.com/watch?v=T3evnh9lT9k

    https://www.youtube.com/watch?v=CHoGIvOi-jw

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  • scottiebabe
    scottiebabe 7 months ago in reply to beacon_dave

    Sadly the quiescent current on most addressable LEDs is pitiful, a whole mA.

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  • beacon_dave
    beacon_dave 7 months ago in reply to scottiebabe

    You mean you haven't got the 12V eJewel power outlet behind the ears yet ? Shrug

    Perhaps could work them into some sort of small bag which has enough room for the power pack.
    Use them as an alternative to rhinestones to add a bit of animated sparkle. 

    Could perhaps still do jewellery in the form of a brooch, which then attaches to the outside of the bag and clips onto a power source inside the bag.

    The smaller size would probably work quite well for edge highlighting or for decorative flourishes.

    The square form factor might work against some applications as it is often easier to drill or punch a clean round hole than a square one.

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  • scottiebabe
    scottiebabe 7 months ago in reply to beacon_dave

    I have seen cr435 fishing lure batteries 

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  • beacon_dave
    beacon_dave 7 months ago in reply to scottiebabe

    Dangly earrings then ?  Slight smile

    3V 50mAh Lithium Pin Cell Battery - CR435
    https://www.farnell.com/datasheets/650640.pdf

       

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