Module 2 Activity Research

Weekly Activity Template

Sherise Cheung

Project 2

Module 2

This module focuses on expanding our exploration of physical computing by designing and testing more complex interactions that connect the physical and digital. The goal is to create a prototype that usees sensors, Arduino, and software like TouchDesigner, while applying interaction design principles to evaluate user experience. Throughout the project, we experimented with different sensors and inputs, refining both the physical and digital components to create meaningful and memorable interactions. My contribution for this group focused on building and testing the circuit and physical model, and developing the potentiometer-based interaction.

Workshop 1 Guerilla Prototyping I

We chose this model from a YouTube tutorial because we were impressed by how it allows users to place their phone on both sides. We then measured the dimensions, plotted the placements, and carved out the structure of the phone case. This was our first version based on the tutorial. It turns out the width was too wide for the phone, causing one side of the phone to sink and tilt upwards. In the refined version, the phone sits perfectly at eye level, making it convenient for users who enjoy watching movies. The other side of the refined case positions the phone lower, making it easier for users to scroll comfortably.

Workshop 2 Guerilla Prototyping II

The first prototype features a floating moon ornament (can be purchased online) that controls the eclipse transition, paired with a side knob to adjust brightness. The second prototype has a flatter container design, placing the moon ornament on a longer knob that's connected to the potentiometer, along with a wider knob on the side to control the light sensor. The third prototype places the hardware and light sensor at the back, emphasizing the visual focus on the moon ornament. The refined first physical prototype that contains the hardware and sensors within it, and two knobs on the top. One for the potentiometer and one for the light sensor. The top view of the first prototype, showing the placement of the two knobs and the ornament.

Activity 1: My Research

Turning the potentiometer to make real-time adjustments in ProtoPie. We'll be using this technique again in Project 3 to adjust parameters and show it visually though TouchDesigner. Experimenting with different colors and paint thicknesses to find the right tone. We painted this on a similar material as the ornament to ensure consistency. For the moon cycle, we decided to focus on the eight main phases instead of showing every daily eclipse transition in TouchDesigner, due to time and software limitations. A refined 360-degree turnable knob we created to replace the original fixed one, improving on the user interactivity and usability.

Activity 2: My Research

The first circuit sketch I drew based on online resources (Failed). Coding the Arduino while following a video tutorial. Adjusting the wiring and refining the code alongside the tutorial for better results. The final, simplified circuit layout.

Workshop 3: Physical Model and Circuit Iterations

The first iteration of the physical model, which didn’t include any interactivity. The second version introduced interactive knobs, but the exposed light bulb confused users, as they weren’t sure if it was meant to be touched. The refined knob design I created based on the second idea from Workshop 2. The updated, simplified working circuit sketch. The final physical model, now with the light bulb removed to prevent user confusion.

Project 2

Project 2 Prototype

After building two physical models, we finally created a version where the cardboard container and knob clearly communicate to the user that they are interactive.

Side view of the final prototype showing the placement of the knobs and the moon ornament knob on the top. And a hole cut underneath for the USB cable to connect to the Arduino. The front view of the final prototype.
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