Design Challenge 2 – Prepper Market

The second design competition happened near Homecoming Weekend. Our challenge is building product for preppers. We had about a week to come up with an idea and build prototype for it, then have a pitch in front of Bucknell Engineering Alumni Association to present our product.
So, my ideas is a light (LED) powered by water. It is the combination of a joule thief and galvanic cell.
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I spent the whole week for this project. During my time working, I meet and make friend with many awesome professors such as Prof Siegel and Prof Kennedy. They complimented my ideas. On that week, I literally meet Matt Lamparter- head of Electrical Engineer Labs every day for materials.
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I encountered a lot of problems while working on the project. My first problem is that the joule thief didn’t work, which takes me a lot of time to troubleshoot it. Second, when I plugged it in water, the LED didn’t light up because water only generate 0.8V while the circuit need 1.5V. I realized that water baterries should be connected in series but it was too late. So in my presentation, I plugged it in orange juice instead.
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Our team got second place in the second design competition.