Unfortunately, the circuit we built in the previous class was not working today. Therefore while Oscar debugs our circuit, Cailey and I began designing the case for the sound sensor. We decided to make a streetlight since a green LED will light up for indoor noise and a red LED will light up for outdoor noise. To save time, we will use Cailey's box idea from project 1 which was two identical pieces with three squares screwed together. In this design, the bottom piece will be the battery holder which will hopefully keep the 2 AA batteries in place by pressure. A metal piece will be glued onto the sides to allow the current to flow. The top piece will have the microphone and the 2 LEDs sticking out and the circuit will be soldered and placed properly inside the cover.
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| Streetlight design for the final project. |
Because the case design is simple we were able to sketch it out quickly on inkscape and cut out multiple prototypes. We used 1/8'' white delrin and 1/8'' wood.
Problems we need to address are how to keep the screws in place and what material (delrin, wood, 1/4'', 1/8'') will work best. I would like to continue our design in 1/8'' delrin instead of wood
because I think it will be sturdier. In the following class session we
will cut out our design in thicker delrin to see if it works better.
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| Battery holder on 1/8'' wood. Velocity: 0.7 Power: 100% |
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| The hole for the nail needs to be centered since the nail moves out of place. |
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