Bi-color 5mm Led Ring (DIY)

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Intro: Bi-color 5mm Led Ring (DIY)

here are the instructions to make a bi-color led ring !

Step 1: Materials

For this project you will need:

-transparent tubing (inside diameter:3.5mm and outside diameter:5mm)

-3mm led (here red)

-5mm led (here blue)

-4mm black heat shrinking tube

-8mm black heat shrinking tube

-three wires (here black, blue and red)

-tin wire

+ a soldering iron and a lighter

Step 2: The 3mm Led

Take the 3mm led and bend the legs as on the picture with a spacing of 5mm then place a piece of 4mm heat shrink tubing and place the transparent tube around that. then solder the black wire to the negative leg of the led

Step 3: The 5mm Led

Place the 5mm led below the 3mm one and solder the black wire to the negative leg of this one too. solder the two other wires to the positive legs of both led (as shown on pictures).

Step 4: Finish

Now you have to insulate the exposed wires and place the 8mm shrinking tube around the whole thing to keep all the elements in place.

So now you have a "common cathode" bi-color ring led !

you can personnalize it as you want: change the colors or make it "common anode".

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    41 Discussions

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    RogiO

    2 months ago

    A 'dot' of electrical tape between the two LEDs would lessen the light contamination for the blue light and make it less violet.

    1 reply
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    SimonRobRogiO

    Reply 2 months ago

    Indeed yes, but with these colors (red and blue) , the blue light isn't passing through the red led

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    chienlinebowzertyuiX

    Reply 2 months ago

    To indicate button pressed and released.
    To indicate battery low and full.
    To indicate charging or discharging.
    To indicate state of processing and done.

    Many ways we can use a bi-color LED and this LED-AND-RING-LED is cool!

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    SimonRobbowzertyuiX

    Reply 3 months ago

    instead of using a standard two-color led (red/green) , use that one to give to your project a nicer look :)

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    bowzertyuiXSimonRob

    Reply 3 months ago

    Well in that case I challenge you to do it with 2 rgb leds, one for each ring! ;)

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    throbscottlebowzertyuiX

    Reply 3 months ago

    Well, you see light-clusters on cars being made with the same design now - looks nice, yes?

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    cicero.v.abowzertyuiX

    Reply 3 months ago

    Eu utilizo, um similar, como iluminação traseira para minha moto.

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    wquoylebowzertyuiX

    Reply 3 months ago

    I can see this being great for more compact projects. I'm thinking of when I build guitar effect pedals, I could have the 3mm indicating the pedal was engaged and the outer ring showing when another function (boost, eq selector etc) was on. Nice idea OP!

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    rofbowzertyuiX

    Reply 3 months ago

    I've had several situations where I have push button LED switches where it would be useful to know that the power was on and then the switch had been pressed

    As an addendum, could the author edit the text to say 'solder' rather than 'weld' - the latter is a very different process.

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    SimonRobrof

    Reply 3 months ago

    noted I will modify that !

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    scooper3bowzertyuiX

    Reply 3 months ago

    The use of a second colour can be used to mask the first therefore, in some cases helping project the main colour more (in the case of a light panel it would boost the perception of the light). In other places the combination of the two colours can help create the perception of other colours being present.

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    Artuino

    3 months ago

    very creative and resourceful idea!

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    ProteekB

    3 months ago

    Brilliant idea and very simple at the same time.

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    throbscottle

    3 months ago

    Very clever idea. I will try to use it for something. Voted!

    1 reply