Arduino

Arduino – Creating your Favourite Glowing Logo

I saw a recent discussion on how difficult it would be to create a glowing logo for a popular smartphone.  And i thought to myself, what a great idea for a DIY project!  Here i will show you how to build a simple glowing logo for your favourite product, brand, or even person using an Arduino with some patience.

Prototyping Methods

In order to build a custom case, logo or other glowing ‘thingy’ you need to first decide what ‘container’ you want to build it in (or to design).

Some good prototyping methods:

  • 3D printer
  • Polymorph
  • Wood
  • Plastic
  • Clay * caution conducts electricity until dry
  • Cardboard

Creating a ‘Case’

NMS_0610

For this build I chose to use cardboard as I have a cute box available.

I sketched the design first.  And then using a sharp exacto knife I cut out the areas I wanted the light to shine through.

Assembly

To do the assembly, I used:

  • The case I created
  • Small PCB
  • 4 pieces of 22 gauge wire
  • Some fancy wire ends
  • 3x 100 ohm resisors, but 330 would work fine
  • 2x Common Cathode RGB LED’s (although you could use three if you wanted) and omit the resistors

NMS_0612

You need to “recreate” your breadboard on your PCB.  Be cautious, some PCB’s have ‘runs’ between the holes to connect them.  You need to look very carefully with a bright light to make sure!

Step 1:  Solder the long legs together first

Step 2:  Solder a black cable to the long legs – this will be your ground

Step 3:  Next, solder the 3 remaining RGB LED’s with the ends facing each other in a 1 to 1 fashion

Note:  Do not mix and match legs if different sizes (to try and put RGB LED 1’s Green pin with RGB LED 2’s Red pin).  It may seem like a cool idea, but the different RGB LED’s internally have different resistances.  So what will happen is only one side will light and the other will not.

Step 4:  Attached resistors to the three legs.  And solder 22 gauge wire to the other end of the resistors

Note:  You may want to do these one ta a time and test them on your Arduino’s 5V pin to make sure they are correct and working.

Step 5:  Once the electronics are assembled, move them into the case.  Popped out the wires through the small hole on the side,  And connect to power.

Finished Product

DSC_0603

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