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I made open source, zero power PCB hackathon badges
Zero-power e-ink badges with passive NFC—clever constraint craft for event swag.
WizardryCozyNiche Gem
kaipereira
158182mo ago
Back to browse
I have Parkinson's, so I defensively patented a battery-free tracker
by gerard-hm·Apr 27, 2026·1 point·1 comment
AI Analysis
●●●●GemZero to OneBig BrainNiche Gem
Battery-free passive rings track tremors better than any smartwatch or chip-enabled ring.
Strengths
- •Passive RF topology removes charging fatigue and weight from the fingers.
- •Fuses finger kinematics with autonomic vitals for full biological context.
- •Open Glass Box philosophy rejects subscription-locked health data.
Weaknesses
- •Requires two wrist hubs which may be bulky compared to single watch.
- •Early stage hardware; manufacturing scale and clinical validation unclear.
Category
Target Audience
Parkinson's patients, medical researchers, hardware engineers
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Empatica · Apple Watch · Oura Ring
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