Hello, I'm Andy

Photo of Andy Kong (website author) smiling

I live in San Francisco. I like building sensors to better understand the mind and body.

I've spent much of my light researching human-computer interaction + biosensing (CMU, ETH Zurich) and building quantum physics hardware (Open Quantum). Nowadays I'm running Chargerless, a health tech company building perpetual devices.

In my free time I enjoy new experiences, training my senses, seeing things I've never seen before, challenging what I believe is possible, and inventing sufficiently advanced technology.

Shenzhen 2025
Shenzhen 2025 Hero Image
A month of prototyping
Brain Hack 2
Brain Hack 2 Hero Image
Ultra EEG
Power-over-Skin
Power-over-Skin Hero Image
Battery-free wearables, powered via body contact!
Laser Holograms
Laser Holograms Hero Image
Trapping 3D objects in a 2D sheet of glass
Magical Beans
Magical Beans Hero Image
Growing beans with an enchanted water bottle
Full-Size Head Candle
Full-Size Head Candle Hero Image
What if Andy was made of wax?
Electroshock VR Haptics
Electroshock VR Haptics Hero Image
Through-Hand Electrical Nerve Stimulation
Implantables
Implantables Hero Image
Advanced implantable technology for continuously powered sensors and actuators
Head Candle
Head Candle Hero Image
Candles shaped like my head
Strooper
Strooper Hero Image
A Chrome extension to track your cognitive performance when visiting particular websites
Year of Output
Year of Output Hero Image
What is Andy doing in 2024?
Grid World
Collaborative online pixel canvas with a physical display in my room
Hacking The Olympia InfoGlobe
Hacking The Olympia InfoGlobe Hero Image
Kinda-vintage internet-connected spinning-LED bulletin-board
Meiger Counters
Meiger Counters Hero Image
Geiger's 2nd most famous counter, the electromagnetic radiation detector
Face Mesh Demos ↗
Face Mesh Demos ↗ Hero Image
A collection of three Face Mesh Demos that I coded to be minimal useful examples
Igneous
Igneous Hero Image
A morphing landscape of colored wax melting for hours, reflecting visitors' actions
EyeMU
EyeMU Hero Image
First first-author paper! "EyeMU Interactions, Gaze + IMU Gestures on Mobile Devices"
Body Channel Communication
Body Channel Communication Hero Image
Identifying users by their touch alone
Physical Word Length Calculator
Physical Word Length Calculator Hero Image
Calculator to determine how much string you need to spell a word
Direction-of-Voice
Direction-of-Voice Hero Image
A novel method for estimating speaker head direction from a single microphone array
EyeCatcher
EyeCatcher Hero Image
A glimpse into another world, made possible through real-time head tracking
Analog Signal Scaling
Analog Signal Scaling Hero Image
Taming an unruly analog signal into a more manageable size.
Myo2
Myo2 Hero Image
Making my own ultra-sensitive EMG sensors for measuring unnoticeable muscle movement
Webcam Heartrate Monitor
Webcam Heartrate Monitor Hero Image
Website that can determine your heartrate using ambient lighting and a camera.
Carnegie Calendar
Carnegie Calendar Hero Image
All-encompassing, auto-updating events calendar for everything going on at uni
AsciiZOOM
AsciiZOOM Hero Image
The first secure, text-based videoconferencing app, accessible from the safety of your terminal.
Altered Perceptions
Altered Perceptions Hero Image
VR headset + POV camera + preprocessing => new way to see the world
Amp Box
Amp Box Hero Image
A box optimized for ease-of-use in amplifying tiny electrical signals (<10 mv)
Manual Backpropagation
Manual Backpropagation Hero Image
Manually implementing backpropagation to make sure I know how it works
Spin Tank
Spin Tank Hero Image
Testing a novel reactive tank armor that spins to deflect projectiles
Spotify Force Queueing
Spotify Force Queueing Hero Image
A Python program using Spotify APIs to forcibly queue songs on collaborative playlists when you don't have aux control
Eye-Tracking Mouse
Eye-Tracking Mouse Hero Image
An easy-to-use, handless mouse utilizing a laptop's built-in webcam and some CNNs.
Personal Website
Personal Website Hero Image
Static website generator built with Flask and hosted on Firebase. You're looking right at it!