If infinity mirrors aren’t cool enough, the 10-foot-tall infinity portal should blow you away. Strictly speaking, the mirror itself is only 7’x4′, but you’ll still find yourself engulfed in the ...

Abstract: Presents reviews for the following list of books, Radio Frequency Identification Engineering: How to Engineer an RFID Reader.

ESP32 → SD 卡模組 GPIO32 → CS GPIO25 → SCK GPIO27 → MOSI GPIO26 → MISO 5V → VCC GND → GND /audio/ ├── MAHJONG_TON_1.wav (一筒) ├── MAHJONG_TON_2.wav (二筒) ├── ... ├── MAHJONG_SUO_1.wav (一索) ├── ...

Abstract: A novel RFID reader antenna with polarization reconfigurable performance is proposed. The radiating part of the reader is a printed square ring, and a reconfigurable feeding network with an ...