Arduino: RFID RC522
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Sumber: http://arduinolearning.com/code/arduino-uno-rfid-rc522-example.php
Library
# MFRC522 RFID # Download https://github.com/miguelbalboa/rfid/archive/master.zip cd ~/Arduino/libraries/ wget http://downloads.arduino.cc/libraries/github.com/miguelbalboa/MFRC522-1.4.0.zip unzip MFRC522-1.4.0.zip
Rangkaian
Source Code
#include <SPI.h> #include <MFRC522.h> #define RST_PIN 9 // #define SS_PIN 10 // MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance void setup() { Serial.begin(9600); // Initialize serial communications with the PC while (!Serial); // Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4) SPI.begin(); // Init SPI bus mfrc522.PCD_Init(); // Init MFRC522 ShowReaderDetails(); // Show details of PCD - MFRC522 Card Reader details Serial.println(F("Scan PICC to see UID, type, and data blocks...")); } void loop() { // Look for new cards if ( ! mfrc522.PICC_IsNewCardPresent()) { return; } // Select one of the cards if ( ! mfrc522.PICC_ReadCardSerial()) { return; } // Dump debug info about the card; PICC_HaltA() is automatically called mfrc522.PICC_DumpToSerial(&(mfrc522.uid)); } void ShowReaderDetails() { // Get the MFRC522 software version byte v = mfrc522.PCD_ReadRegister(mfrc522.VersionReg); Serial.print(F("MFRC522 Software Version: 0x")); Serial.print(v, HEX); if (v == 0x91) Serial.print(F(" = v1.0")); else if (v == 0x92) Serial.print(F(" = v2.0")); else Serial.print(F(" (unknown)")); Serial.println(""); // When 0x00 or 0xFF is returned, communication probably failed if ((v == 0x00) || (v == 0xFF)) { Serial.println(F("WARNING: Communication failure, is the MFRC522 properly connected?")); } }
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