After watching the video, I tried following it and making the same thing. However, I soon realized I wasn’t experienced enough to fold this complex origami. I found a similar 4-button origami video and followed that. This is my first prototype. As you can see, it was pretty ugly and the buttons were sometimes broken. This was because I didn’t spend much time perfecting my folds, I just wanted to test to see if this was a do-able project. I showed this toy to my family and also to Mr. Michie. The main feedback I got was that this is a great toy but the spring in the button was inconsistent. Mr. Michie mentioned that this seemed like a simple project that could be finished within 2 lessons and asked me to try and add more complexity to it. So after consideration, I decided to try and add circuits and LED lights to my project.
The materials needed were 2 pieces of 21×21, 1 piece of A4 paper, and 4 pieces of 13×13..
Here’s a clip of me testing if an LED light would work with my 1st prototype. I had to test it just to make sure that the paper and everything would be do-able.
I made a really simple circuit with copper tape and a battery pack. The LED worked pretty well and I was happy with the result so I moved onto the next step of the project and made another prototype.
My second prototype was much better. I spent more time on it and I think it came out much nicer. The buttons worked almost about 90% of the time. I figured that I could start adding circuits and experimenting with what I can and cannot use. I made my buttons different colors and made the spring more consistent. I started considering how the LED and power switch would work together. My initial idea was to program a Circuit Playground Express as I already had background knowledge on how to program it from a class I took last year. I would make the bottom of the button conductive somehow and when you pressed the button, it would trigger the circuit and activate the LED light.
I soon realized that the CPE wouldn’t work well with my button because the outputs would need to be sewn on. I switched to an Arduino. I’ve never programmed an Arduino before so this was a new skill I had to learn. Watching a bunch of YouTube videos and asking for help from my teachers helped a lot. I figured that the easiest way was just to make a circuit with copper tape and wires. After a bunch of testing, I figured that I had to add a metal “ring” around the button to make it easier to conduct the electricity. In theory, the bottom of the button would be soldered to a wire connected to the LED light and the “trigger” copper tape at the base of the box would be wired to the Arduino. When the spring is in compression, the base of the button would touch the copper tape, allowing the Arduino to conduct electricity to the LED light. This proved to work but came with a bunch of technical problems with the wiring and the conduction. I programmed my Arduino like so:
The spring mechanism inside the buttons is my energy conversion. As you can see in the picture, it’s actually just made out of paper.
I connected my Arduino to a battery pack and soldered an LED light to the wires that were connected to my Arduino. This was quite difficult for me as for some reason, I could not seem to solder my components properly. I was extremely frustrated at this stage. One of the suggestions I got was to just hot glue the wires together but make sure that they touch because hot glue doesn’t conduct electricity. I was pretty desperate so I went with this idea and it surprisingly worked well. I originally wanted one LED light to blink and one LED light to fade in and out. However, I faced many design problems while making this because the Arduino output pins only give out 5 volts and I have to program the special outputs if I wanted to change the voltage outputs. I was conscious about the remaining time I had to spend on this project so, in the end, I gave up that thought.
This is me testing my LED light: (the video wouldn’t upload 🙁
I soldered the wires to the button and the LED light. Connecting the wires was really hard at first but towards the end, I got pretty good at soldering. The copper wire was really prone to ripping so I had to repair it a lot. A really useful tool I learned to use through this project was the multimeter. Prior to this, I never knew that the multimeter was so helpful.
Next, I connected a speaker to another button and plugged it into my Arduino. This process took quite a while as I had trouble programming my Arduino as I forgot to write pin 12 as an OUTPUT. It took me two lessons to finish up that button. I wired a blue LED light to the output A2 and the red LED to the output pin 12. The last button was a fidget toy with no input and output because I ran out of time, but also because this toy was extremely frustrating to make, and having a fidget button to press was a form of stress relief (for me).
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