Outcome

Intention

Using three slide potentiometers as input sources, I sought to replicate the skeuomorph/interface metaphor of the digital RGB slider/controller.

Process

The code for this project was relatively straightforward; after consulting the Photon 2 datasheet I was able to rewire my analog potentiometer readings correctly. The main hurdle emerged in the RGB LED itself — as my first time working with an RGB LED, I was reluctant to go rougher and bend the pins — but after some help from Zhenfang (!! major shoutout), got it working.

Outcome

My final circuit includes 1 RGB LED modulated by 3 1KΩ resistors; the LED's color is determined by three small slide potentiometers; and it is all connected via jumper wires to the power rail.

Overhead view of the circuit.

Perspectival view of interaction. Each slide potentiometer represents red, green, and blue respectively; making physical a gesture that feels more familiar in digital contexts (e.g. photo-editing/image making software).

Overhead view of sliders as inputs.

Reflection

This project showed me the importance of having a rigorous and clear debugging process/workflow (see video below). After fiddling with the breadboard for a while, I hadn't been able to get the bulb to work properly. By starting with a careful read through my code, then checking the physical component itself, and finally considering the wiring, I was able to gradually troubleshoot. This process also deepened my appreciation for hardware/those who work with physical materials, as it reflects the ethos of "knowing one's material."