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#include <MFRC522.h> #include <MFRC522Extended.h> #include <deprecated.h> #include <require_cpp11.h> #include <Bonezegei_LCD1602_I2C.h> #include <EEPROM.h> // We are going to read and write PICC's UIDs from/to EEPROM #include <SPI.h> // RC522 Module uses SPI protocol #include <MFRC522.h> // Library for Mifare RC522 Devices #define LED_ON HIGH #define LED_OFF LOW //#endif #define redLed 7 // Set Led Pins #define greenLed 6 #define blueLed 5 #define relay 4 // Set Relay Pin #define wipeB 3 // Button pin for WipeMode bool programMode = false; // initialize programming mode to false uint8_t successRead; // Variable integer to keep if we have Successful Read from Reader byte storedCard[4]; // Stores an ID read from EEPROM byte readCard[4]; // Stores scanned ID read from RFID Module byte masterCard[4]; // Stores master card's ID read from EEPROM // Create MFRC522 instance. #define SS_PIN 10 #define RST_PIN 9 MFRC522 mfrc522(SS_PIN, RST_PIN); Bonezegei_LCD1602_I2C lcd(0x27); ///////////////////////////////////////// Setup /////////////////////////////////// void setup() { //Arduino Pin Configuration pinMode(redLed, OUTPUT); pinMode(greenLed, OUTPUT); pinMode(blueLed, OUTPUT); pinMode(wipeB, INPUT_PULLUP); // Enable pin's pull up resistor pinMode(relay, OUTPUT); //Be careful how relay circuit behave on while resetting or power-cycling your Arduino digitalWrite(relay, HIGH); // Make sure door is locked digitalWrite(redLed, LED_OFF); // Make sure led is off digitalWrite(greenLed, LED_OFF); // Make sure led is off digitalWrite(blueLed, LED_OFF); // Make sure led is off //Protocol Configuration lcd.begin(); //delay(100); lcd.print("INITIALIZING..."); lcd.setPosition(0, 1); lcd.print("CONTROL SYSTEM"); granted(8000); //delay(4000); lcd.clear(); Serial.begin(9600); // Initialize serial communications with PC SPI.begin(); // MFRC522 Hardware uses SPI protocol mfrc522.PCD_Init(); // Initialize MFRC522 Hardware //If you set Antenna Gain to Max it will increase reading distance mfrc522.PCD_SetAntennaGain(mfrc522.RxGain_max); Serial.println(F("Access Control Example v0.1")); // For debugging purposes ShowReaderDetails(); // Show details of PCD - MFRC522 Card Reader details //Wipe Code - If the Button (wipeB) Pressed while setup run (powered on) it wipes EEPROM if (digitalRead(wipeB) == LOW) { // when button pressed pin should get low, button connected to ground digitalWrite(redLed, LED_ON); // Red Led stays on to inform user we are going to wipe Serial.println(F("Wipe Button Pressed")); Serial.println(F("You have 10 seconds to Cancel")); Serial.println(F("This will be remove all records and cannot be undone")); bool buttonState = monitorWipeButton(10000); // Give user enough time to cancel operation if (buttonState == true && digitalRead(wipeB) == LOW) { // If button still be pressed, wipe EEPROM Serial.println(F("Starting Wiping EEPROM")); for (uint16_t x = 0; x < EEPROM.length(); x = x + 1) { //Loop end of EEPROM address if (EEPROM.read(x) == 0) { //If EEPROM address 0 // do nothing, already clear, go to the next address in order to save time and reduce writes to EEPROM } else { EEPROM.write(x, 0); // if not write 0 to clear, it takes 3.3mS } } Serial.println(F("EEPROM Successfully Wiped")); digitalWrite(redLed, LED_OFF); // visualize a successful wipe delay(200); digitalWrite(redLed, LED_ON); delay(200); digitalWrite(redLed, LED_OFF); delay(200); digitalWrite(redLed, LED_ON); delay(200); digitalWrite(redLed, LED_OFF); } else { Serial.println(F("Wiping Cancelled")); // Show some feedback that the wipe button did not pressed for 15 seconds digitalWrite(redLed, LED_OFF); } } // Check if master card defined, if not let user choose a master card // This also useful to just redefine the Master Card // You can keep other EEPROM records just write other than 143 to EEPROM address 1 // EEPROM address 1 should hold magical number which is '143' if (EEPROM.read(1) != 143) { Serial.println(F("No Master Card Defined")); Serial.println(F("Scan A PICC to Define as Master Card")); do { successRead = getID(); // sets successRead to 1 when we get read from reader otherwise 0 digitalWrite(blueLed, LED_ON); // Visualize Master Card need to be defined delay(200); digitalWrite(blueLed, LED_OFF); delay(200); } while (!successRead); // Program will not go further while you not get a successful read for (uint8_t j = 0; j < 4; j++) { // Loop 4 times EEPROM.write(2 + j, readCard[j]); // Write scanned PICC's UID to EEPROM, start from address 3 } EEPROM.write(1, 143); // Write to EEPROM we defined Master Card. Serial.println(F("Master Card Defined")); } Serial.println(F("-------------------")); Serial.println(F("Master Card's UID")); for (uint8_t i = 0; i < 4; i++) { // Read Master Card's UID from EEPROM masterCard[i] = EEPROM.read(2 + i); // Write it to masterCard Serial.print(masterCard[i], HEX); } Serial.println(""); Serial.println(F("-------------------")); Serial.println(F("Everything is ready")); Serial.println(F("Waiting PICCs to be scanned")); cycleLeds(); // Everything ready lets give user some feedback by cycling leds } ///////////////////////////////////////// Main Loop /////////////////////////////////// void loop() { do { successRead = getID(); // sets successRead to 1 when we get read from reader otherwise 0 // When device is in use if wipe button pressed for 10 seconds initialize Master Card wiping if (digitalRead(wipeB) == LOW) { // Check if button is pressed // Visualize normal operation is iterrupted by pressing wipe button Red is like more Warning to user digitalWrite(redLed, LED_ON); // Make sure led is off digitalWrite(greenLed, LED_OFF); // Make sure led is off digitalWrite(blueLed, LED_OFF); // Make sure led is off // Give some feedback Serial.println(F("Wipe Button Pressed")); Serial.println(F("Master Card will be Erased! in 10 seconds")); bool buttonState = monitorWipeButton(10000); // Give user enough time to cancel operation if (buttonState == true && digitalRead(wipeB) == LOW) { // If button still be pressed, wipe EEPROM EEPROM.write(1, 0); // Reset Magic Number. Serial.println(F("Master Card Erased from device")); Serial.println(F("Please reset to re-program Master Card")); while (1) ; } Serial.println(F("Master Card Erase Cancelled")); } if (programMode) { cycleLeds(); // Program Mode cycles through Red Green Blue waiting to read a new card } else { normalModeOn(); // Normal mode, blue Power LED is on, all others are off } } while (!successRead); //the program will not go further while you are not getting a successful read if (programMode) { if (isMaster(readCard)) { //When in program mode check First If master card scanned again to exit program mode Serial.println(F("Master Card Scanned")); Serial.println(F("Exiting Program Mode")); Serial.println(F("-----------------------------")); programMode = false; return; } else { if (findID(readCard)) { // If scanned card is known delete it Serial.println(F("I know this PICC, removing...")); deleteID(readCard); Serial.println("-----------------------------"); Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM")); } else { // If scanned card is not known add it Serial.println(F("I do not know this PICC, adding...")); writeID(readCard); Serial.println(F("-----------------------------")); Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM")); } } } else { if (isMaster(readCard)) { // If scanned card's ID matches Master Card's ID - enter program mode programMode = true; Serial.println(F("Hello Master - Entered Program Mode")); lcd.print("HELLO MASTER..."); lcd.setPosition(0, 1); lcd.print("IN PROGRAM MODE"); delay(4000); lcd.clear(); uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that Serial.print(F("I have ")); // stores the number of ID's in EEPROM Serial.print(count); Serial.print(F(" record(s) on EEPROM")); Serial.println(""); Serial.println(F("Scan a PICC to ADD or REMOVE to EEPROM")); Serial.println(F("Scan Master Card again to Exit Program Mode")); Serial.println(F("-----------------------------")); } else { if (findID(readCard)) { // If not, see if the card is in the EEPROM //digitalWrite(relay, HIGH); // Relock door Serial.println(F("Welcome, You shall pass")); lcd.print("CARD RECOGNIZED..."); lcd.setPosition(0, 1); lcd.print("..YOU SHALL PASS"); //delay(8000); granted(8000); lcd.clear(); //delay(1000); //granted(4000); // Open the door lock for 4 s } else { // If not, show that the ID was not valid Serial.println(F("You shall not pass")); lcd.print("NOT RECOGNIZED..."); lcd.setPosition(0, 1); lcd.print("...YOU NOT PASS"); delay(4000); lcd.clear(); denied(); } } } } ///////////////////////////////////////// Access Granted /////////////////////////////////// void granted(uint16_t setDelay) { digitalWrite(relay, HIGH); digitalWrite(blueLed, LED_OFF); // Turn off blue LED digitalWrite(redLed, LED_OFF); // Turn off red LED digitalWrite(greenLed, LED_ON); // Turn on green LED digitalWrite(relay, LOW); // Unlock door! delay(setDelay); // Hold door lock open for given seconds digitalWrite(relay, HIGH); // Relock door delay(100); // Hold green LED on for a second digitalWrite(greenLed, LED_OFF); } ///////////////////////////////////////// Access Denied /////////////////////////////////// void denied() { digitalWrite(greenLed, LED_OFF); // Make sure green LED is off digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off digitalWrite(redLed, LED_ON); // Turn on red LED delay(1000); } ///////////////////////////////////////// Get PICC's UID /////////////////////////////////// uint8_t getID() { // Getting ready for Reading PICCs if (!mfrc522.PICC_IsNewCardPresent()) { //If a new PICC placed to RFID reader continue return 0; } if (!mfrc522.PICC_ReadCardSerial()) { //Since a PICC placed get Serial and continue return 0; } // There are Mifare PICCs which have 4 byte or 7 byte UID care if you use 7 byte PICC // I think we should assume every PICC as they have 4 byte UID // Until we support 7 byte PICCs Serial.println(F("Scanned PICC's UID:")); for (uint8_t i = 0; i < 4; i++) { // readCard[i] = mfrc522.uid.uidByte[i]; Serial.print(readCard[i], HEX); } Serial.println(""); mfrc522.PICC_HaltA(); // Stop reading return 1; } 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),probably a chinese clone?")); 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?")); Serial.println(F("SYSTEM HALTED: Check connections.")); // Visualize system is halted digitalWrite(greenLed, LED_OFF); // Make sure green LED is off digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off digitalWrite(redLed, LED_ON); // Turn on red LED while (true) ; // do not go further } } void cycleLeds() { // Red LED on digitalWrite(redLed, LED_OFF); digitalWrite(blueLed, LED_OFF); // delay(10); // Red LED stays on for 200 ms // Red LED off //digitalWrite(redLed, LED_OFF); //delay(50); // Red LED stays off for 200 ms for (int i = 0; i < 2; i++) { // Adjust the number of flashes as needed digitalWrite(redLed, LED_ON); delay(100); // Blue LED on for 50 ms digitalWrite(redLed, LED_OFF); delay(100); } // Blue LED off for 50 ms // Strobe effect for blue LED for (int i = 0; i < 5; i++) { // Adjust the number of flashes as needed digitalWrite(blueLed, LED_ON); delay(50); // Blue LED on for 50 ms digitalWrite(blueLed, LED_OFF); delay(50); // Blue LED off for 50 ms } // Ensure all LEDs are off at the end of the cycle digitalWrite(redLed, LED_OFF); digitalWrite(greenLed, LED_OFF); digitalWrite(blueLed, LED_OFF); } //////////////////////////////////////// Normal Mode Led /////////////////////////////////// void normalModeOn() { digitalWrite(blueLed, LED_ON); // Blue LED ON and ready to read card digitalWrite(redLed, LED_OFF); // Make sure Red LED is off digitalWrite(greenLed, LED_OFF); // Make sure Green LED is off digitalWrite(relay, HIGH); // Make sure Door is Locked } //////////////////////////////////////// Read an ID from EEPROM ////////////////////////////// void readID(uint8_t number) { uint8_t start = (number * 4) + 2; // Figure out starting position for (uint8_t i = 0; i < 4; i++) { // Loop 4 times to get the 4 Bytes storedCard[i] = EEPROM.read(start + i); // Assign values read from EEPROM to array } } ///////////////////////////////////////// Add ID to EEPROM /////////////////////////////////// void writeID(byte a[]) { if (!findID(a)) { // Before we write to the EEPROM, check to see if we have seen this card before! uint8_t num = EEPROM.read(0); // Get the numer of used spaces, position 0 stores the number of ID cards uint8_t start = (num * 4) + 6; // Figure out where the next slot starts num++; // Increment the counter by one EEPROM.write(0, num); // Write the new count to the counter for (uint8_t j = 0; j < 4; j++) { // Loop 4 times EEPROM.write(start + j, a[j]); // Write the array values to EEPROM in the right position } successWrite(); Serial.println(F("Succesfully added ID record to EEPROM")); } else { failedWrite(); Serial.println(F("Failed! There is something wrong with ID or bad EEPROM")); } } ///////////////////////////////////////// Remove ID from EEPROM /////////////////////////////////// void deleteID(byte a[]) { if (!findID(a)) { // Before we delete from the EEPROM, check to see if we have this card! failedWrite(); // If not Serial.println(F("Failed! There is something wrong with ID or bad EEPROM")); } else { uint8_t num = EEPROM.read(0); // Get the numer of used spaces, position 0 stores the number of ID cards uint8_t slot; // Figure out the slot number of the card uint8_t start; // = ( num * 4 ) + 6; // Figure out where the next slot starts uint8_t looping; // The number of times the loop repeats uint8_t j; uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that stores number of cards slot = findIDSLOT(a); // Figure out the slot number of the card to delete start = (slot * 4) + 2; looping = ((num - slot) * 4); num--; // Decrement the counter by one EEPROM.write(0, num); // Write the new count to the counter for (j = 0; j < looping; j++) { // Loop the card shift times EEPROM.write(start + j, EEPROM.read(start + 4 + j)); // Shift the array values to 4 places earlier in the EEPROM } for (uint8_t k = 0; k < 4; k++) { // Shifting loop EEPROM.write(start + j + k, 0); } successDelete(); Serial.println(F("Succesfully removed ID record from EEPROM")); } } ///////////////////////////////////////// Check Bytes /////////////////////////////////// bool checkTwo(byte a[], byte b[]) { for (uint8_t k = 0; k < 4; k++) { // Loop 4 times if (a[k] != b[k]) { // IF a != b then false, because: one fails, all fail return false; } } return true; } ///////////////////////////////////////// Find Slot /////////////////////////////////// uint8_t findIDSLOT(byte find[]) { uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that for (uint8_t i = 1; i <= count; i++) { // Loop once for each EEPROM entry readID(i); // Read an ID from EEPROM, it is stored in storedCard[4] if (checkTwo(find, storedCard)) { // Check to see if the storedCard read from EEPROM // is the same as the find[] ID card passed return i; // The slot number of the card } } } ///////////////////////////////////////// Find ID From EEPROM /////////////////////////////////// bool findID(byte find[]) { uint8_t count = EEPROM.read(0); // Read the first Byte of EEPROM that for (uint8_t i = 1; i < count; i++) { // Loop once for each EEPROM entry readID(i); // Read an ID from EEPROM, it is stored in storedCard[4] if (checkTwo(find, storedCard)) { // Check to see if the storedCard read from EEPROM return true; } else { // If not, return false } } return false; } ///////////////////////////////////////// Write Success to EEPROM /////////////////////////////////// // Flashes the green LED 3 times to indicate a successful write to EEPROM void successWrite() { digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off digitalWrite(redLed, LED_OFF); // Make sure red LED is off digitalWrite(greenLed, LED_OFF); // Make sure green LED is on delay(200); digitalWrite(greenLed, LED_OFF); // Make sure green LED is on delay(200); digitalWrite(greenLed, LED_OFF); // Make sure green LED is off delay(200); digitalWrite(greenLed, LED_OFF); // Make sure green LED is on delay(200); digitalWrite(greenLed, LED_OFF); // Make sure green LED is off delay(200); digitalWrite(greenLed, LED_OFF); // Make sure green LED is on delay(200); } ///////////////////////////////////////// Write Failed to EEPROM /////////////////////////////////// // Flashes the red LED 3 times to indicate a failed write to EEPROM void failedWrite() { digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off digitalWrite(redLed, LED_OFF); // Make sure red LED is off digitalWrite(greenLed, LED_OFF); // Make sure green LED is off delay(200); digitalWrite(redLed, LED_ON); // Make sure red LED is on delay(200); digitalWrite(redLed, LED_OFF); // Make sure red LED is off delay(200); digitalWrite(redLed, LED_ON); // Make sure red LED is on delay(200); digitalWrite(redLed, LED_OFF); // Make sure red LED is off delay(200); digitalWrite(redLed, LED_ON); // Make sure red LED is on delay(200); } ///////////////////////////////////////// Success Remove UID From EEPROM /////////////////////////////////// // Flashes the blue LED 3 times to indicate a success delete to EEPROM void successDelete() { digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off digitalWrite(redLed, LED_OFF); // Make sure red LED is off digitalWrite(greenLed, LED_OFF); // Make sure green LED is off delay(200); digitalWrite(blueLed, LED_ON); // Make sure blue LED is on delay(200); digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off delay(200); digitalWrite(blueLed, LED_ON); // Make sure blue LED is on delay(200); digitalWrite(blueLed, LED_OFF); // Make sure blue LED is off delay(200); digitalWrite(blueLed, LED_ON); // Make sure blue LED is on delay(200); } ////////////////////// Check readCard IF is masterCard /////////////////////////////////// // Check to see if the ID passed is the master programing card bool isMaster(byte test[]) { return checkTwo(test, masterCard); } bool monitorWipeButton(uint32_t interval) { uint32_t now = (uint32_t)millis(); while ((uint32_t)millis() - now < interval) { // check on every half a second if (((uint32_t)millis() % 500) == 0) { if (digitalRead(wipeB) != LOW) return false; } } return true; }
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