{"id":2807,"date":"2018-06-10T20:35:40","date_gmt":"2018-06-10T12:35:40","guid":{"rendered":"https:\/\/drho.club\/?p=2268"},"modified":"2018-06-10T20:35:40","modified_gmt":"2018-06-10T12:35:40","slug":"arduino-rfid","status":"publish","type":"post","link":"https:\/\/104.es\/index.php\/2018\/06\/10\/arduino-rfid\/","title":{"rendered":"\u3010Arduino\u3011RFID\u611f\u6e2c\u5668\u5be6\u7fd2"},"content":{"rendered":"

Arduino\u6709\u63d0\u4f9b RFID RC522\u7684\u6a21\u7d44\u53ef\u4ee5\u4f7f\u7528\u6b64\u6a21\u7d44\u4f86\u8b80\u53d6RFID\u5361\u7247\u7684UID\u503c\u4ee5\u53ca\u4fee\u6539\uff0c\u672c\u6587\u5c07\u5148\u4ecb\u7d39\u5982\u4f55\u8b80\u53d6UID\u503c\u3002<\/p>\n

\"\"<\/a><\/p>\n

RFID-RC522\u6a21\u7d44\u901a\u8a0a\u70baSPI\u4ecb\u9762\uff0c\u5206\u5225\u6709NSS\u3001MISO\u3001MOSI\u3001SCK\u56db\u652f\u8173\u4f4d\uff0c\u900f\u904eArduino\u7684\u5b98\u7db2<\/a>\u7684SPI\u4ecb\u7d39\u53ef\u77e5\u9053\u4ee5\u5b9a\u7fa9\u597d\u7684\u8173\u4f4d\uff0c\u00a0\u00a0<\/a><\/p>\n

\"\"<\/a><\/p>\n

\u5c07MOSI\u63a5\u81f311\u8173\u3001MISO\u63a5\u81f312\u8173\u3001SCK\u63a5\u81f313\u8173\u3001NSS\u63a5\u81f310\u8173(\u53ef\u81ea\u884c\u5b9a\u7fa9)\u3001RST\u63a5\u81f39(\u53ef\u81ea\u884c\u5b9a\u7fa9)\uff0c\u63a5\u7dda\u5b8c\u6210\u5716\u5982\u4e0b\uff0c<\/p>\n

\"\"<\/a><\/p>\n

\u7a0b\u5f0f\u8a2d\u8a08:\u9700\u8981\u4f7f\u7528\u5230SPI.h<\/a>\u548cMFRC522.h<\/a>\u9019\u5169\u500b\u51fd\u5f0f\u5eab\uff0c\u4ee5\u4e0b\u7a0b\u5f0f\u5f9e\u51fd\u5f0f\u5eab\u7bc4\u4f8b\u00a0ReadNUID.ino \u7c21\u5316\u4fee\u6539\uff0c<\/p>\n

[code]<\/p>\n

#include <SPI.h> \/\/\u5f15\u5165SPI\u51fd\u5f0f\u5eab
\n#include <MFRC522.h> \/\/\u5f15\u5165\u51fd\u5f0f\u5eab<\/p>\n

#define SS_PIN 10 \/\/\u8a2d\u5b9aNSS\u8173\u4f4d
\n#define RST_PIN 9 \/\/\u8a2d\u5b9aRST\u8173\u4f4d
\nMFRC522 rfid(SS_PIN, RST_PIN);<\/p>\n

void setup() {
\nSerial.begin(9600);\/\/\u8a2d\u5b9a\u9b91\u7387\u70ba9600
\nSPI.begin(); \/\/\u521d\u59cb\u5316SPI
\nrfid.PCD_Init(); \/\/ \u521d\u59cb\u5316MFRC522\u6a21\u7d44
\n}<\/p>\n

void loop() {<\/p>\n

if ( ! rfid.PICC_IsNewCardPresent())\/\/\u6aa2\u67e5\u662f\u5426\u6709\u65b0\u7684\u5361\u7247
\nreturn;<\/p>\n

if ( ! rfid.PICC_ReadCardSerial())\/\/\u6aa2\u67e5\u662f\u5426\u6709\u8b80\u53d6\u5230\u5361\u7247\u7684UID
\nreturn;
\nSerial.print(F("PICC type: "));
\nMFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);\/\/\u8b80\u53d6\u5361\u7247\u7684\u985e\u578b
\nSerial.println(rfid.PICC_GetTypeName(piccType));<\/p>\n

Serial.println(F("A new card has been detected."));
\nSerial.println(F("The NUID tag is:"));
\nSerial.print(F("In hex: "));
\nprintHex(rfid.uid.uidByte, rfid.uid.size);\/\/\u547c\u53eb\u526f\u7a0b\u5f0f \u4e26\u5c07UID\u548cUID\u9577\u5ea6\u50b3\u9001\u81f3printHex()\u5c07UID\u503c\u7528\u5341\u516d\u9032\u5236\u986f\u793a
\nSerial.println();
\nSerial.print(F("In dec: "));
\nprintDec(rfid.uid.uidByte, rfid.uid.size);\/\/\u547c\u53eb\u526f\u7a0b\u5f0f \u4e26\u5c07UID\u548cUID\u9577\u5ea6\u50b3\u9001\u81f3printDec()\u5c07UID\u503c\u7528\u5341\u9032\u5236\u986f\u793a
\nSerial.println();<\/p>\n

\/\/ Halt PICC
\nrfid.PICC_HaltA();<\/p>\n

\/\/ Stop encryption on PCD
\nrfid.PCD_StopCrypto1();
\n}<\/p>\n

void printHex(byte *buffer, byte bufferSize) {\/\/\u5c07UID\u503c\u4ee5\u5341\u516d\u8fd1\u5236\u986f\u793a\u5728\u5e8f\u5217\u961c\u76e3\u63a7\u8996\u7a97
\nfor (byte i = 0; i < bufferSize; i++) {
\nSerial.print(buffer[i] < 0x10 ? " 0" : " ");
\nSerial.print(buffer[i], HEX);
\n}
\n}<\/p>\n

void printDec(byte *buffer, byte bufferSize) { \/\/\u5c07UID\u503c\u4ee5\u5341\u8fd1\u5236\u986f\u793a\u5728\u5e8f\u5217\u961c\u76e3\u63a7\u8996\u7a97
\nfor (byte i = 0; i < bufferSize; i++) {
\nSerial.print(buffer[i] < 0x10 ? " 0" : " ");
\nSerial.print(buffer[i], DEC);
\n}
\n}
\n[\/code]<\/p>\n

\u4e0a\u50b3\u5b8c\u6210\u5f8c\uff0c\u6253\u958b\u5e8f\u5217\u961c\u76e3\u63a7\u8996\u7a97\uff0c\u4e26\u5c07\u5361\u7247\u653e\u5230\u611f\u5340\uff0c\u5c31\u53ef\u4ee5\u8b80\u53d6\u5230\u5361\u7247\u7684UID\u548c\u5361\u7247\u985e\u578b!<\/p>\n

\"\"<\/a>\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Arduino\u6709\u63d0\u4f9b RFID RC522\u7684\u6a21\u7d44\u53ef\u4ee5\u4f7f\u7528\u6b64\u6a21\u7d44\u4f86\u8b80\u53d6RFID\u5361\u7247\u7684UID\u503c\u4ee5\u53ca\u4fee\u6539\uff0c\u672c\u6587\u5c07\u5148\u4ecb…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-2807","post","type-post","status-publish","format-standard","hentry","category-arduino"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/2807","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/comments?post=2807"}],"version-history":[{"count":0,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/posts\/2807\/revisions"}],"wp:attachment":[{"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/media?parent=2807"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/categories?post=2807"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/104.es\/index.php\/wp-json\/wp\/v2\/tags?post=2807"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}