This thin, lightweight card is designed to protect your RFID-enabled cards from unauthorized scanning, keeping your credit card, passport, and other personal data secure.

Companion library for Adafruit_GFX to load images from SD card or SPI Flash Requires Adafruit_GFX library and one of the SPI color graphic display libraries, e.g. Adafruit_ILI9341.

The development of communication technology must be implemented to improve the efficiency of industrial systems. One promising approach is the use of Ultra High Frequency (UHF) modulation for ...