Concept
This attempt to create an unusual switch was inspired by my unhealthy obsession with led light shoes as a kid. With so many lights and colors on my shoes that changed depending on each step and pressure, I have blurred memories of randomly walking and jumping around just for those lights. Since this assignment required us to not use our hands, I thought it would be perfect to try creating something similar to those shoes.
Process & Highlights
Visualizing the circuit was relatively straightforward. It consists of a simple series circuit with two LEDs and a 330-ohm resistor.
I experimented with various methods to create a switch using two aluminum foil sheets and settled on the following design. I attached one sheet to the back of a sandal and the other to the floor. When stepped on the second sheet, both pieces of foil come in contact and the circuit closes, allowing the LEDs to glow.
Videos of its implementation: IMG_8316, IMG_8326
One significant challenge I encountered was positioning the lights on the shoes instead of using a breadboard. To make this work, I used a combination of jumper wires, aluminum foil, and tape. I also intended to use three LEDs: yellow, green, and blue. While the yellow and green LEDs worked when connected in series, the blue LED did not. I suspected it was due to insufficient current, as the bulb wasnt faulty. I tried various resistor combinations but they did not work.
Reflections:
I am content with the outcome of this assignment. While the wiring may not be aesthetically pleasing, I believe that with better resources and materials such as conductive fabric and alligator clips, this project could be further enhanced. During the assignment, I contemplated changing my idea several times but realized that it needed to be hands-free, which limited my options. This project made me realize and appreciate our dependence on our hands. Overall, physical computing seems fun and I’m excited to learn more.