Obsolete Obsolescence

Dialing into the Future

Bridging the Past and Present in Every Beep.

Introduction

This project transforms a forgotten VHS machine into an interactive robot, breathing new life into obsolete technology. Inspired by Wall-E and our fascination with e-waste, the robot explores themes of obsolescence and human connection.

This project is a testament to the creative potential of discarded technology. It sparks conversations about waste, human-machine interaction, and the ever-evolving landscape of technology.

Keyword: Arduino, Interaction, Media Art


Overview

Context

Quarter-long project for the class DXARTS 471: Mechatronic Art, Design, and Fabrication I

Time Frame

Jan. 2024 — Mar.2024 (11 weeks)

Project Type

Individual Project

Platform

By Borui Wang

Arduino

Project Description

_This project is heavily inspired by the fiction cartoon "Wall-E" and my personal interest in collecting used electronics._

I was hunting for some cool "e-waste" at the UW Surplus, the official resale point for all unwanted items from the UW department, and quickly intrigued by one of the "CD players" in a pile of large and old audio & video equipment. That machine, covered by a satin lavender finish and touch of rose gold in its front panel, stands different from the rest equipment. I took it up from the shelf, lifted up the tray cover and clearly the thing is not in a working shape: huge empty space under the hood with visible cables wring in between, there is also a leaning wheel looking that the powering gear out of place. "Its like earthquake inside" I thought, "but perfect for my art piece". With over 3 dollars, I took it to my workplace.

I showed my machine to the instructors, and when I referred the machine as "CD Player", he was startled, checked the machine for a while and asked "Are you sure this is a CD Player, not a VHS Machine?"

"VHS Machine?"

"What is a VHS, is it the other name of 'video cassette'?"

Questions popping up from my mind. The machine, now connected with a totally unfamiliar and unexpected name, emits an undeniable force, pulling me toward another world, a world that ceased to exist before I was born, a world that is bulky and dated, static noise and snowflake in my memory, a world that capsuled all colorful, joyful, and wonderful memories in video tapes.

My project path changed from the moment, I started to explore the iteration of machines and technologies and what happened when they were abandoned. I did research on what VHS tape is, how it is developed, adopted, and discarded. I watched videos and read posts about the giant industry of tape renting behind it: similar to the streaming service we have now, but also more humanized and connected to community. Many say that they remember the friendly salesperson in the tape shop, but no one will say they miss that one customer service representative from Netflix. The VHS machine and the world behind it consists many interesting stories and people's memories, but they irreversibly get lost in the advance of technology.

I learned the concept "sentient robot" from the instructor. Which are machines that can think and feel like a human. It is exactly what I'm trying to achieve - turning the VHS machine into a humanized robot, that is abandoned by the world but still has its last hope of keeping up.

From the moment I saw how the tape tray in VHS machine moves, I thought about Wall-E. The little waste management machine who is doing works that nobody cares, and in a place where human already left. Now I discovered that the VHS machine is in the exact same situation, where the world it belongs to has already been left over, and its function is not needed by people anymore.

I built the machine around the concept of "obsolete", "sentient", and "hope". I coded the robot so that it does some pointless routine works when nobody is nearby; and when someone is close, it waves at you and makes noise to catch your attention. Then it presents you something it determined as advanced, hoping that it can still serve a purpose after abandoned by the world. I set the "something" to be a CD disc, which not only represents that I misidentified it as a CD player, but also adds a conflict by the fact that what is considered as advanced is also obsoleted for many years. This double layer of obsolescence is also where I come up with the name of this project. After installed, the iridescent light beams of the CD disc add another bright stroke to the aesthetic of the project.

Just before I finished my build, I decided to try and add some audio feedback to the machine. With just over 20 minutes (including 10 minutes trying to find a proper speaker), I managed to make it buzz when doing its routine job and do a "ta-da" opening sound when it want to present the CD to someone. And this turned out to be the best 20 minutes I spent. The buzzing sound makes the robot so much lively and the "ta-da" sound strongly emphasized its excitement when presenting the CD. Also, in a gallery setting where lighting condition is complex, adding some audio cue can help grab the audiences' attention and remind them what is going on with the project.

Design and Functionality

"Obsolete Obsolescence" reimagines the VHS machine through a combination of salvaged parts and modern electronics. The original mechanical assembly, including the iconic tape tray, is repurposed to create the robot's movements. Servos control the "waving hand" and a simulated reading head, while a hidden motor powers the tray extension.

When a person approaches, detected by a motion sensor, the robot comes alive. It performs a series of actions: waving, lighting up with iridescent CD light, and presenting a CD – a playful nod to the machine's mistaken identity. Soundscapes further enhance the experience, with a "ta-da" announcing the CD presentation and a soft hum during routine movements.

Technical Details

Materials

Modules used in this project are:

  • 2 servos

  • L298N motor controller

  • HC-SR501 motion sensor (Human presence sensor)

  • Red LED & resistor

  • Speaker & resistor

The modules used in this project is simple, and tutorials and examples are readily available online.

Fully Assembled

The machine is set on top of all the broken electric parts to create a setting of an abandoned garbage disposal. It will wave hand, beep at, and present the disc if someone is close. Otherwise, it pretends its reading the CD or plays with the gear on its hand.

By Borui Wang
By Borui Wang

The Machine & Motor

The full mechanical part is a series of gears, levers, and bars, all powered by one single motor. It is the main body of my little robot.

The assembly has several moving parts, among which I found the VHS tape tray the most interesting. It is the first thing that's powered by the motor, and can extend to the edge of the assembly, retract to the middle and lower itself to the bottom plate of the assembly. The tray is shown in the yellow square in the image below.

By Borui Wang, Tray in the machine assembly

I tried to build an H-Bridge following the tutorials online, however, the transistors and the 5V signal are not powerful enough for the motor to drive the tray. So I replaced them with a L298N motor controller.

Image - The Soldered H-Bridge
From Amazon, By Brand: Qunqi

The L298N accepts 12V input and is powerful to drive the motor even at 3V input, also, it has a 5V output which can be used to power the Arduino so they can share a single power source.

Waving Hand

There are two servos used in the project, one is used for the "hand" that waves at a person when they are close. It is the blue servo with a pole and gear at the center to the right of the picture.

By Borui Wang, Project in progress

Disc Reading Head

One of the servo and the LED are used for the data reading head that mimics the reading of a HDD and CD.

By Eric Gaba, Wikimedia Commons user Sting, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=11293145
By Borui Wang, Reading hand in the project

The LED and resistor is soldered onto a small piece of PCB board, and they are hot glued to the servo hand. The servo is taped on a girder of the machine. Cables used are the thinnest and softest so they won't exert too much force to the connection when the hand is rotating.

HC-SR501 Motion Sensor

This sensor is used to detect if anyone is near the machine. It's half sphere shape is a perfect addition on the tape reader cylinder. I set the detecting range to the minimum so it won't trigger constantly in the rather small gallery.

By Borui Wang

Wiring and Code

The schematic of the project is as below:

By Borui Wang, Wiring Schematic of project from fritzing

Access all the source code and files from the button below in my GitHub Repository!