3x3x3 LED cube shield using arduino
What should be in your kit:
1 – PCB
27 – LED’s
2 – 6 Pins for Arduino
2 – 8 Pins for Arduino
3 – Resistors
1 – Foam Guide
1 – Small Wire
1 – Medium Wire
1 – Large Wire
You will need: Solder Iron, Solder, Wire Cutters, Wire Strippers, Safety Googles, Helping hands are always good (but not manditory) and a really GREAT ATTITUDE!!!
to by a kit go to http://lwjmstore.blogspot.com/
In the below pictures I will be switching between RED LED’s and GREEN LED’s. My mom made a GREEN one…some parts didn’t turn out so good. She did try – and she is a VERY beginner! Good Job Mom!
Step 1: Information
LED’s: All LED’s have a Positive (+) and a Negative (-) As you can see on the picture below. The Positive (+) is longer than the Negative (-) You will always be bending the Negative (-). The official term for the Negative is “Cathode” and for the Positive is “Anode” For these directions we will use short and long.
Testing your LED’s: I’ve tested every single LED. However if you’d like to test to make sure…here’s how to do it. Take a Lithium battery, stick the LED with the long led on the side of the battery marked with a “+”. Press the Leds against the battery. The light should turn on. If not…you’ve got yourself a bad LED.
Guide Sheet: I used this as my template. If you ever get confused (easy to do) refer back to the guide sheet. This will tell you how to bend and placement of the LED’s.
Each circle has 2 dots. The one with the arrow is the Negative (-) and the one standing alone is the Positive (+). This shows you which way to bend your Negative (-) led
Step 2: Connecting your LED’s
ALWAYS FOLD DOWN THE NEGATIVE (-)..SHORTER SIDE
1) Start with the center hole. Folding down Negative (-) on the right side.
2) Place the second LED in as shown. Solder them together. Don’t worry about the end of the LED being too long. We will be trimming them.
3) Place the third LED in as shown. Solder them together.
Continue on until all 9 LED’s are soldered together.
Before cutting the extra wire. Take another look to make sure all your LED’s are going the correct way and you folded down the Negative (-) This is the time to catch a mistake…you can always unsolder and fix it.
Using your wire cutters, cut off the extra wire. Mostly should be on the 4 corners.
You should have.. (3) 9 pin LED’s squares
Step 3: Solder all 3 levels together
Now the tricky part starts. Stacking them together.
Put one LED piece back into the foam. You can find something to slide in between as shown.
Put your 2nd layer on. You will be soldering the Positive (+) to the Positive (+) on the next layer as shown. You may need to bend the wires so they meet. *Please note that the picture above is showing how to stack the layers. It has not been soldered together. If you connect one Positive (+) to a Negative (-) your LED will not light up in the end.
Do the same with the 3rd layer. *Please note that the picture above is showing how to stack the layers. It has not been soldered together.
This is what you should have in the end. This is the one my mom did…alittle crooked, but that’s ok. As long as all the soldering is good the LED’s will still shine.
Set your LED “Cube” off to the side. Let’s work on the PCB.
For more detail: 3x3x3 LED cube shield
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