Page 159 - 최강 아두이노 퍼스트 참고서
P. 159

*       Example sketch/program showing how to read data from a PICC (that is: a
                 RFID
                 *       Tag or Card) using a MFRC522 based RFID Reader on the Arduino SPI
                 interface.
                  *
                 *       When the Arduino and the MFRC522 module are connected (see the pin
                 layout
                 *       below), load this sketch into Arduino IDE then verify/compile and upload it.
                 *       To see the output: use Tools, Serial Monitor of the IDE (hit Ctrl+Shft+M).  *
                 When you present a PICC (that is: a RFID Tag or Card) at reading distance  * of the
                 MFRC522 Reader/PCD, the serial output will show the ID/UID, type and
                 *       any data blocks it can read. Note: you may see "Timeout in communication"
                 *       messages when removing the PICC from reading distance too early.
                  *
                 *       If your reader supports it, this sketch/program will read all the PICCs
                 *       presented (that is: multiple tag reading). So if you stack two or more
                 *       PICCs on top of each other and present them to the reader, it will first
                 *       output all details of the first and then the next PICC. Note that this  * may
                 take some time as all data blocks are dumped, so keep the PICCs at  * reading distance
                 until complete.
                  *
                 *       Typical pin layout used:
                 *       ------------------------------------------------------------
                 *       MFRC522      Arduino       Arduino   Arduino
                 *       Reader/PCD   Uno           Mega      Nano v3
                 *       Signal      Pin          Pin           Pin       Pin
                 *       ------------------------------------------------------------
                 *       RST/Reset   RST          9             5         D9
                 *       SPI SS      SDA(SS)      10            53        D10
                 *       SPI MOSI    MOSI         11 / ICSP-4   51        D11
                 *       SPI MISO    MISO         12 / ICSP-1   50        D12
                 *       SPI SCK     SCK          13 / ICSP-3   52        D13  */

                 // 위의 내용은 SPI 포트에 연결하는 방법을 설명하고 있습니다.













                                                   159
   154   155   156   157   158   159   160   161   162   163   164