Photo of Andy Kong (website author) smiling
Howdy!
I'm Andy Kong

I'm currently building chargerless.xyz

I like building hardware, collecting and processing signals, and sharing knowledge.
I also enjoy new experiences, training my senses, seeing things I've never seen before, challenging what I believe is possible, and inventing sufficiently advanced technology.


Portfolio

Shenzhen 2025 Hero Image

Shenzhen 2025

A month of prototyping

Brain Hack 2 Hero Image

Brain Hack 2

Ultra EEG

Power-over-Skin Hero Image

Power-over-Skin

Battery-free wearables, powered via body contact!

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Laser Holograms

Trapping 3D objects in a 2D sheet of glass

Magical Beans Hero Image

Magical Beans

Growing beans with an enchanted water bottle

Full-Size Head Candle Hero Image

Full-Size Head Candle

What if Andy was made of wax?

Electroshock VR Haptics Hero Image

Electroshock VR Haptics

Through-Hand Electrical Nerve Stimulation

Implantables Hero Image

Implantables

Advanced implantable technology for continuously powered sensors and actuators

Head Candle Hero Image

Head Candle

Candles shaped like my head

Strooper Hero Image

Strooper

A Chrome extension to track your cognitive performance when visiting particular websites

Year of Output Hero Image

Year of Output

What is Andy doing in 2024?

Grid World

Collaborative online pixel canvas with a physical display in my room

Hacking The Olympia InfoGlobe Hero Image

Hacking The Olympia InfoGlobe

Kinda-vintage internet-connected spinning-LED bulletin-board

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Meiger Counters

Geiger's 2nd most famous counter, the electromagnetic radiation detector

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Face Mesh Demos

A collection of three Face Mesh Demos that I coded to be minimal useful examples

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Igneous

A morphing landscape of colored wax melting for hours, reflecting visitors' actions

EyeMU Hero Image

EyeMU

First first-author paper! "EyeMU Interactions, Gaze + IMU Gestures on Mobile Devices"

Body Channel Communication Hero Image

Body Channel Communication

Identifying users by their touch alone

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Physical Word Length Calculator

Calculator to determine how much string you need to spell a word

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Direction-of-Voice

A novel method for estimating speaker head direction from a single microphone array

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EyeCatcher

A glimpse into another world, made possible through real-time head tracking

Analog Signal Scaling Hero Image

Analog Signal Scaling

Taming an unruly analog signal into a more manageable size.

Myo2 Hero Image

Myo2

Making my own ultra-sensitive EMG sensors for measuring unnoticeable muscle movement

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Webcam Heartrate Monitor

Website that can determine your heartrate using ambient lighting and a camera.

Carnegie Calendar Hero Image

Carnegie Calendar

All-encompassing, auto-updating events calendar for everything going on at uni

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AsciiZOOM

The first secure, text-based videoconferencing app, accessible from the safety of your terminal.

Altered Perceptions Hero Image

Altered Perceptions

VR headset + POV camera + preprocessing => new way to see the world

Amp Box Hero Image

Amp Box

A box optimized for ease-of-use in amplifying tiny electrical signals (<10 mv)

Manual Backpropagation Hero Image

Manual Backpropagation

Manually implementing backpropagation to make sure I know how it works

Spin Tank Hero Image

Spin Tank

Testing a novel reactive tank armor that spins to deflect projectiles

Spotify Force Queueing Hero Image

Spotify Force Queueing

A Python program using Spotify APIs to forcibly queue songs on collaborative playlists when you don't have aux control

Eye-Tracking Mouse Hero Image

Eye-Tracking Mouse

An easy-to-use, handless mouse utilizing a laptop's built-in webcam and some CNNs.

Personal Website Hero Image

Personal Website

Static website generator built with Flask and hosted on Firebase. You're looking right at it!