diy projects
Sonicare Toothbrush NFC Chip Hacked With an ESP32-S3 and PN532
A Sonicare brush head hides a battery-free NFC chip. See how an ESP32-S3 and PN532 read its wear data and turn it into a…
diy projects
This NFC Business Card Lights Its LEDs With Borrowed Phone Power
Kevin Tang's PCB business card lights up with no battery on board, pulling about 5 mA from the phone's own 13.56 MHz NFC field.
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…
diy projects
AkiraConsole: ESP32-S3 Handheld for Hacking, RF, and Retro Gaming
Meet the AkiraConsole: an ESP32-S3 handheld packing LoRa, sub-GHz, NFC, and a 2.8-inch LCD for hardware hacking, RF testing, and retro gaming on the…