diy projects
ATtiny816 PCB Business Card Runs 21 LEDs on Harvested NFC Power
No battery, no charging port. This PCB business card harvests power from your phone's NFC field to run an ATtiny816 and light 21 Charlieplexed…
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No battery, no charging port. This PCB business card harvests power from your phone's NFC field to run an ATtiny816 and light 21 Charlieplexed…