Hardware Podcasts

Perpetual Wearable Biosensing with Andy Kong

The Amp Hour · 10 Sept 2026 · 1h 06m · Episode 733

What this episode covers

Andy Kong, founder of Chargerless, explains how his pre-seed wearable biosensing device achieves perpetual operation using just one minute of daily sunlight. He details the system architecture, which relies on a deliberately underpowered microcontroller and custom-built analog front-end circuitry to minimize power consumption. The device samples biometric data, such as heart rate via PPG, at low frequencies to maintain battery life while offering features comparable to commercial trackers like the Apple Watch and Whoop. Kong also discusses his experimental 'Power over Skin' project, which uses human body communication to transmit milliwatts of power through the body for charging.

Most relevant to

early-stage companies

Topics

Mentioned

Companies
Garmin, Texas Instruments, Skyworks
Products
Chargerless, Apple Watch, Whoop, Fitbit, Aura, OpenBCI
Chips
Renesas

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