Chiiing
Portfolio of Chi-Ching Tsai
PHYSICAL_COMPUTING Copy 2.jpg

PLAYGROUND

Creativity is nothing but a mind set free.

Objects with Home Made Switch


Materials | 5V input (Arduino), 120 ohm resistance, breadboard, potentiometer, and LED (green)

Tool | Solder gun, Table Saw, Dewalt Mitresaw


Final_1.jpg

Enhancement

For this week, we have to apply something we've learned from all the tutorials to enhance or transform our homework assignment from last week. This time, I intended to use analog input (e.g. potentiometer) to effect the LED. Also, I leverage the pot stands I made from the VFL project to hide my wires and circuit.

Design Concept | By pouring the water, the LED indicates “filled” will be turned on, until there’s no water left and it needs to be watered again. I actually see this as a sense of humanization. It’s interesting to let the tech speak for greens!

Process

So first of all, I had to validate the circuit before I applied to my flower stands. By this time, the LED was still blinking, but we want the blinking stop.

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Schematic_led_3_1.jpg
I  solder  the LED and wires together to make the joint stronger.

I solder the LED and wires together to make the joint stronger.

To make a circuit, I attached the positive side of wires on the saucer, and put some salt on the bottom, so when the water be poured in the pot, the salt will be melt into conductive salt water and became a circuit.

To make a circuit, I attached the positive side of wires on the saucer, and put some salt on the bottom, so when the water be poured in the pot, the salt will be melt into conductive salt water and became a circuit.

To validate and test the circuit before I pour water in and make everything wet lol. When I succeeded, I hided the wires in the pot stand to make it neater.

I altered the code in Arduino to make the blinking stops.

I altered the code in Arduino to make the blinking stops.

Track the analog input from microcontroller.

Track the analog input from microcontroller.

To be honest, this came after my first idea was failed (several times) and then I pivoted to this one. I will write about my failure in the next post. But still, please refer to the video below, and you might want to pay attention to the LED (when I poured the water, then it’s turned on). And also, when I tuned the potentiometer in the smaller cube, the LED will go dimmer or brighter!