My main project for this course will be modifying an old snowboard I have with LED lights that will change color with different motion of the snowboard. My inspiration for this project came from videos I have seen of other people adding LED lights to their gear for night skiing. All of the other versions I saw stayed one color or one spectrum of color, nothing changed with time. To make mine different and to cover the constraint of having a dynamic product, I plan to use an accelerometer to control color of the lights.
My aesthetic of my snowboard is going to follow that with (colorful) glow in the dark such as the photos shown below. I was limited in my options of aesthetics due to the lights only having certain tones. It was also suggested that I use a mirror vinyl wrap on the snowboard before attaching the lights to get a more futuristic look with reflected lights.
My initial sketches of this product were used to determine where on the board I would put the lights and how I would secure the battery/ Arduino for the power. Below shows my quick sketch from when I first had the idea. I am moving forward with the lights flat on the top rim of the board, as well as up onto the backs of the bindings to make this more three dimensional.
My next challenge was figuring out how the lights actual change color. To figure this out I stripped the lights I ordered and used a multimeter to measure voltages when the lights were a certain color. I was able to distinguish the voltage to ground combo required to achieve red, blue, green, and purple. All of which are shown below. It can be seen that the red wire always needs a 12 volt supply, and depending on where the ground is placed, changes the color. To get different hues of color, a different voltage is ran across the two other wires.
My next steps are to figure out how to incorporate the arduino, accelerometer, and how these would be powered and stored in a waterproof fashion. For this circuit I have found a few designs that I think will work. One example is shown below. For the waterproof box I am considering a simply acrylic box, although now that campus is less accessible- I may just buy a compact waterproof box.
This product is still taking shape and I am excited to see how it turns out.