Detail what you created. What methods or techniques did you use? What tools and technologies were involved? Document the outcome itself (code, circuit diagrams, photos, design files, 3d models, video demonstrations, etc. as required) and provide a short narrative. A bill of materials (sensors, input devices, actuators, and other components) should be provided. This documentation should be sufficiently rich to allow anyone to repeat / recreate it.
Physical prototype: We began with understanding the user experience we would like to deliver, and sketched out forms that would make it possible. We also took inspiration from wall structures and forms from history, like the Berlin wall in Germany. We identified spaces this installation would be placed in, and from there came up with a simplistic wall that would capture our concept in the most powerful manner. Next, we used an existing cupboard as the skeleton for a foam core wall. To help visualize a realistic texture, we stuck a textured brick wallpaper onto the foam core wall. On the other side of the wall, two copper plates are embedded to record and receive warmth. Behind the copper plates, we placed FSR sensors (for recording end) and peltiers (for receiving end).
Code: We separated our code into two parts: The recording side and the receiving of the code. First, we coded the peltiers interaction, followed by the neopixel, and finished with the touch sensors. To realize a full interaction from the cloud side, we will need to incorporate a proportional integral derivative (PID) controller in our code. So that when someone records their warmth, it is stored in the cloud and randomly received by someone via the wall. The IPD allows for the set random temperature to equalize to the current tile temperature by a slow hit and trial method.
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