🛠️ NFC Energy-Harvesting PCB Business Card with an MCU

Summary
An NFC energy-harvesting PCB business card featuring an onboard microcontroller. It showcases custom hardware design powered entirely by harvested NFC energy.

Why it’s interesting
It combines a traditional business card with custom PCB design, NFC energy harvesting, and an integrated microcontroller.

Source metrics: Points 69 · Comments 5
HN discussion · Project
Source: #HackerNews / Show HN