2013 年 8月 7 日随笔档案 - IAmAProgrammer

2013年8月7日

摘要： http://www.f4grx.net/projet-module-nfc/The NFC is a contactless communication technology, which is used for transport cards and other contactless cards CB.The signal is modulated at a frequency of 13.56 MHz, which is a "ISM" band as the 2.4 GHz or 433.92 MHz.Outside the NFC, this band is u 阅读全文

posted @ 2013-08-07 20:16 IAmAProgrammer 阅读(1648) 评论(0) 推荐(0) 编辑

TRF7970A 天线

摘要：阅读全文

posted @ 2013-08-07 15:59 IAmAProgrammer 阅读(499) 评论(0) 推荐(0) 编辑