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  1. Home
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  3. RFID Garage door opener

RFID Garage door opener

Scheduled Pinned Locked Moved My Project
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  • S SVLoneStar

    Hi BartE - thanks for your reply!
    I do not receive any error regarding invalid EEPROM - not while writing, not at boot time.
    My cards are shown in this format: D4 04 E2 E9
    I register a Master Card like this (and it works until reboot):
    MFRC522::Uid masterkey = { 4, {0xD4,0x04,0xE2,0xE9}, 0 };

    BartEB Offline
    BartEB Offline
    BartE
    Contest Winner
    wrote on last edited by
    #15

    @SVLoneStar That should work, did you try the sketch shown in the topic?

    The function recallEeprom(); reads the EEPROM content and after closing the program mode this function storeEeprom();
    writes the EEPROM. Please add some debug info (Serial.print) and validate that these functions actually are called on

    • recallEeprom(); --> on start up
    • storeEeprom(); --> ending program mode.
    ChakkieC 2 Replies Last reply
    0
    • AnticimexA Anticimex

      Cool stuff! You probably what some signing in there as well :) would be a shame if someone snooped the open command from your controller and decided to pay a visit.

      BartEB Offline
      BartEB Offline
      BartE
      Contest Winner
      wrote on last edited by
      #16

      @Anticimex yes your right but when i wrote this sketch signing was not in the released branch.

      1 Reply Last reply
      0
      • Rod MacPhersonR Offline
        Rod MacPhersonR Offline
        Rod MacPherson
        wrote on last edited by
        #17

        Nice work. I have yet to pick up an RFID reader to give that part of it a try, but I've modified it a little to have reed sensors for the 2 doors so that I can easily see if the door is open on my phone, and get notifications when the door opens at an unexpected time, like when the controller is set to vacation mode, or at times of night when we would not normally be coming and going.
        I'll be watching for someone to post up a signing version.

        Here's my 2 relay, 2 door sensor version.

        /*
         RFID Garagedoor opener by Bart Eversdijk
         Modified to add door sensors by Rod MacPherson
         
         This sketch is to open a Garage door with an mifare RIFD-tag 
          
          For an Arduino Nano v3
          Connection wiring :
            - nrf24l01+ as descibed on the MySensors website
            - MFRC522 reader/writer MOSI, MISO, SCK, 3.3V and GND as they are on the nrf24101+, but connect RST to pin D7 and connect SDA(SS) to pin D8 
            - LED with 470ohm resistor between GND and pin A3 
            - push button between GND and pin D5
            - 5v relays coil between GND and  pin D4 -> switch pins of the relays should be connected in parallel with your garage door push button. 
            - second relay for second door on pin D3
            
          Features:
          This project can record up to 18 RFID-"tags"
          These card IDs are stored in to EEPROM by keeping them next to the RFID reader when the system in program mode. (Slow blinking LED) When a card is accepted as new card the LED will blink fast for a short time.
          To keep the master-tags (choose your own) next to the RFID reader when pressing the push button. To clear all cards (except the master card) press the push button in program mode for 6 seconds. The LED will now fast blink for a couple of seconds.
          
          Your garage your can be opened by keep a registered RFID tag next to the reader or by clicking the open icon on lock node presented by this plugin.
          By by-passing the alarm node presented by this plug in the RFID will be temporarily disabled.
          When an incorrect (not registered) RFID tag is scanned the alarm is triggered to detect illegal scan attempts   
        
        */
        
        #include <SPI.h>
        #include <MFRC522.h>
        #include <MySensor.h> 
        #include <Bounce2.h>
        
        #define RF_INIT_DELAY   125
        #define ONE_SEC         1000
        #define MAX_CARDS       18
        #define PROG_WAIT       10
        #define HEARTBEAT       10
        #define BAUD            115200
        
        /*Pin definitions*/
        #define LED_PIN         A3
        #define SECONDRELAY     3
        #define GARAGEPIN       4
        #define SWITCH_PIN      5
        #define RST_PIN         7       //  MFRC 
        #define SS_PIN          8       //  MFRC 
        #define DOOR_PIN_L  A0  // Arduino Digital I/O pin for button/reed switch
        #define DOOR_PIN_R  A1  // Arduino Digital I/O pin for button/reed switch
        
        
        MFRC522      mfrc522(SS_PIN, RST_PIN);  // Create MFRC522 instance
        MFRC522::Uid olduid;
        MFRC522::Uid masterkey = { 10, {0,0,0,0, 0,0,0,0, 0,0 },  0 };
        
        byte       countValidCards  = 0;
        MFRC522::Uid validCards[MAX_CARDS];
        
        void       ShowCardData(MFRC522::Uid* uid);
        bool       sameUid(MFRC522::Uid* old, MFRC522::Uid* check);
        void       copyUid(MFRC522::Uid* src, MFRC522::Uid* dest);
        bool       isValidCard(MFRC522::Uid* uid);
        int        releasecnt = 0;
        
        #define    CHILD_ID_ALARM    1
        #define    CHILD_ID_LOCK     2
        #define    CHILD_ID_LOCK2    3
        #define    CHILD_ID_DOOR_L    4
        #define    CHILD_ID_DOOR_R    5
        
        MySensor   gw;
        Bounce     debouncer = Bounce();
        Bounce     debouncerDoorR = Bounce();
        Bounce     debouncerDoorL = Bounce();
        int oldValueR=-1;
        int oldValueL=-1;
        
        int        oldSwitchValue=-1;
        int        switchValue = 0;
        long       timer = -1;
        bool       programmode = false;
        bool       ledon;
        int        programTimer = 0;
        bool       armed = true;
        unsigned long lastTime = 0;
        
        MyMessage  lockMsg(CHILD_ID_LOCK,          V_LOCK_STATUS);
        MyMessage  lock2Msg(CHILD_ID_LOCK2,          V_LOCK_STATUS);
        MyMessage  lockArmMsg(CHILD_ID_ALARM,      V_ARMED);
        MyMessage  wrongMsg(CHILD_ID_ALARM,        V_TRIPPED);
        MyMessage  doorRmsg(CHILD_ID_DOOR_R, V_TRIPPED);
        MyMessage  doorLmsg(CHILD_ID_DOOR_L, V_TRIPPED);
        
        void setup() {
                Serial.begin(BAUD);     // Initialize serial communications with the PC
                pinMode(GARAGEPIN, OUTPUT);     // Initialise in/output ports
                pinMode(SECONDRELAY, OUTPUT);     // Initialise in/output ports
                
                // Make sure MFRC will be disabled on the SPI bus
                pinMode(RST_PIN, OUTPUT);     
                digitalWrite(RST_PIN, LOW);
                pinMode(SS_PIN, OUTPUT);     
                digitalWrite(SS_PIN, LOW);
        
                pinMode(LED_PIN, OUTPUT);
                digitalWrite(LED_PIN, LOW);
                // Setup the button
                pinMode(SWITCH_PIN, INPUT_PULLUP);
        
                // After setting up the button, setup debouncer
                debouncer.attach(SWITCH_PIN);
                debouncer.interval(5);
        
                // Setup the right door sensor
                pinMode(DOOR_PIN_R,INPUT);
                // Activate internal pull-up
                digitalWrite(DOOR_PIN_R,HIGH);
          
                // After setting up the button, setup debouncer
                debouncerDoorR.attach(DOOR_PIN_R);
                debouncerDoorR.interval(5);
                
                // Setup the left door sensor
                pinMode(DOOR_PIN_L,INPUT);
                // Activate internal pull-up
                digitalWrite(DOOR_PIN_L,HIGH);
          
                // After setting up the button, setup debouncer
                debouncerDoorL.attach(DOOR_PIN_L);
                debouncerDoorL.interval(5);
          
        
                // Init mysensors library
                gw.begin(incomingMessage, 5);
                gw.sendSketchInfo("RFID Garage", "1.2"); delay(RF_INIT_DELAY);
                
                // Register all sensors to gw (they will be created as child devices)
                gw.present(CHILD_ID_LOCK, S_LOCK);      delay(RF_INIT_DELAY);
                gw.present(CHILD_ID_LOCK2, S_LOCK);      delay(RF_INIT_DELAY);
                gw.present(CHILD_ID_ALARM, S_MOTION);   delay(RF_INIT_DELAY);
                gw.present(CHILD_ID_DOOR_R, S_DOOR); 
                gw.present(CHILD_ID_DOOR_L, S_DOOR); 
                
                recallEeprom();
                
                // Init MFRC RFID sensor
                SPI.begin();            // Init SPI bus
                mfrc522.PCD_Init();     // Init MFRC522
                ShowReaderDetails();            // Show details of PCD - MFRC522 Card Reader details
        
                gw.send(lockArmMsg.set(armed));
                Serial.println(F("Init done..."));
        }
        
        void loop() {
                timer++;
                delay(HEARTBEAT);
                gw.process();
                debouncer.update();
                debouncerDoorL.update();
                // Get the update value for Left
                int valueL = debouncerDoorL.read(); 
                if (valueL != oldValueL) {
                   // Send in the new value for Left
                   gw.send(doorLmsg.set(valueL==HIGH ? 1 : 0));
                   oldValueL = valueL;
                }
                debouncerDoorR.update();
                // Get the update value for Right
                int valueR = debouncerDoorR.read();
                if (valueR != oldValueR) {
                   // Send in the new value for Right
                   gw.send(doorRmsg.set(valueR==HIGH ? 1 : 0));
                   oldValueR = valueR;
                }
        
                // Get the update value
                int switchValue = debouncer.read();
                if (switchValue != oldSwitchValue) {
                  // Send in the new value
                  Serial.print (F("Switch "));
                  Serial.println (switchValue);
                  
                  if (switchValue && programmode) {
                       lastTime     = millis() / 1000;
                  }
                  
                  if (!switchValue && programmode && lastTime > 0) {
                       if ( (millis() / 1000) - lastTime > 3) {
                            Serial.println(F("Reset all cards"));  
                            countValidCards  = 0;
                            blinkFast(50);
                       } else {
                          Serial.println(F("Program off"));  
                          digitalWrite(LED_PIN, LOW);
                          programmode = false;
                          
                          storeEeprom();
                       }
                  }
                  
                  if (!switchValue)   {
                      programTimer = 0;
                  }
                  oldSwitchValue = switchValue;
                }
                
                if (programmode && ((timer % (ONE_SEC / HEARTBEAT)) == 0 ))  {
                    ledon = !ledon;
                    digitalWrite(LED_PIN, ledon);
                    programTimer++;
        
                    // Stop program mode after 20 sec inactivity
                    if (programTimer > PROG_WAIT)  {
                       programmode = false;
                       digitalWrite(LED_PIN, false);
                       Serial.println(F("Program expired"));  
                    }
                }
                
                if ((timer % (200 / HEARTBEAT)) == 0 )   {
                     // Look for new cards
                     if ( ! mfrc522.PICC_IsNewCardPresent()) {
                          if (releasecnt > 0)   {
                              releasecnt--;
                              if (!releasecnt)  {
                                  olduid.size = 0;
                                  Serial.println(F("release"));
                              }
                            }
                    return;
                    }
                    releasecnt = 5;
            
                   // 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));
                   if (!olduid.size || !sameUid(&(mfrc522.uid), &olduid))  {
                        ShowCardData(&(mfrc522.uid));
                        copyUid(&(mfrc522.uid), &olduid);
                        if ( isValidCard(&olduid) )   {
                             OpenDoor(programmode);
                        } else  {
                           if (sameUid(&(mfrc522.uid), &masterkey)) {
                               // Only switch in program mode when mastercard is found AND the program button is pressed
                               if (switchValue)  {
                                 Serial.println(F("Program mode"));
                                 programmode = true;
                                 programTimer = 0;
                                 lastTime     = 0;
                               } else {
                                 OpenDoor2(programmode);
                               }
                           } else {
                               if (programmode) {
                                 Serial.println(F("new card"));
                                 programTimer = 0;
                                 
                                 if (countValidCards < MAX_CARDS)
                                 {
                                    // Add card to list...
                                    copyUid(&(mfrc522.uid), &validCards[countValidCards]);
                                    countValidCards++;
                                    blinkFast(15);
                                 }
                               } else {
                                 Serial.println(F("Invalid card"));
                                 if (armed) {
                                    gw.send(wrongMsg.set(1));
                                    delay(2000);
                                    gw.send(wrongMsg.set(0));
                                 }
                               }
                           }
                        }
                   }
                }
        }
        
        void ShowCardData(MFRC522::Uid* uid) 
        {
            Serial.print(F("Card UID:"));
            for (byte i = 0; i < uid->size; i++) {
                if(uid->uidByte[i] < 0x10) {
                    Serial.print(F(" 0"));
                } else {
                    Serial.print(F(" "));
                        }
                Serial.print(uid->uidByte[i], HEX);
            } 
            Serial.println();
        }
        
        void copyUid(MFRC522::Uid* src, MFRC522::Uid* dest)
        {
            dest->size = src->size;
            dest->sak  = src->sak;
            
            for (byte i = 0; i < src->size; i++) {
            dest->uidByte[i] = src->uidByte[i];
            }
        }
        
        bool sameUid(MFRC522::Uid* old, MFRC522::Uid* check)
        {
            if (old->size != check->size) {
               return false;
            }
            for (byte i = 0; i < old->size; i++) {
                if (old->uidByte[i] != check->uidByte[i]) {
                    return false;
                }
            }
            return true;
        }
        
        bool isValidCard(MFRC522::Uid* uid)
        {
              for (byte i = 0; i < countValidCards; i++)  {
                  if (validCards[i].size != uid->size)  {
                      break;
                  }
                  for (int j = 0; j < uid->size; j++) {
                      if (validCards[i].uidByte[j] != uid->uidByte[j])  {
                          break;
                      }
                      if (j == (uid->size - 1)) {  
                          return true;
                      }
                  }
              }
              return false;
        }
        
        
        void storeEeprom()
        {
            byte address = 0;
            gw.saveState(address++, countValidCards);
            
            for (byte i = 0; i < countValidCards; i++) {
               gw.saveState(address++, validCards[i].size);
               for (byte j = 0; j < 10; j++) {
                  gw.saveState(address++, validCards[i].uidByte[j]);
               } 
            }
        }
        
        void recallEeprom()
        {
            byte address = 0;
            
            countValidCards = gw.loadState(address++);
            if (countValidCards > MAX_CARDS) {
               Serial.println(F("Not a valid EEPROM reading set to default"));
               countValidCards = 0;
               storeEeprom();
               return;
            }
            
            for (byte i = 0; i < countValidCards; i++)  {
               validCards[i].size = gw.loadState(address++);
               for (byte j = 0; j < 10; j++)  {
                  validCards[i].uidByte[j] = gw.loadState(address++);
               } 
            }
          
        }
        
        void blinkFast(int times)
        {
            for (int i = 0; i < times; i++) { 
               ledon = !ledon;
               digitalWrite(LED_PIN, ledon);
               delay(100);
            }
        }
        
        void OpenDoor(bool fakeOpen)
        {
            Serial.println(F("Open door!"));
            gw.send(lockMsg.set(false));
            
            if (!fakeOpen) { 
              digitalWrite(LED_PIN, HIGH);
              digitalWrite(GARAGEPIN, HIGH); 
            }
            delay(1000);
            
            if (!fakeOpen) { 
              digitalWrite(GARAGEPIN, LOW); 
              digitalWrite(LED_PIN, LOW);
            }
            
            gw.send(lockMsg.set(true));
        }
        
        void OpenDoor2(bool fakeOpen)
        {
            Serial.println(F("Open door 2!"));
            gw.send(lock2Msg.set(false));
            
            if (!fakeOpen) { 
              digitalWrite(LED_PIN, HIGH);
              digitalWrite(SECONDRELAY, HIGH); 
            }
            delay(1000);
            
            if (!fakeOpen) { 
              digitalWrite(SECONDRELAY, LOW); 
              digitalWrite(LED_PIN, LOW);
            }
            
            gw.send(lock2Msg.set(true));
        }
        
        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?"));
            }
        }
        
        
        void incomingMessage(const MyMessage &message) 
        {
           if (message.type == V_LOCK_STATUS) {
             // Change relay state
             if (!message.getBool())  {
                switch (message.sensor)
                {
                   case CHILD_ID_LOCK:
                      OpenDoor(false);
                      break;
                   case CHILD_ID_LOCK2:
                      OpenDoor2(false);
                      break;
                }
             }
          
             // Write some debug info
             Serial.print(F("Lock:  "));
             Serial.print(message.sensor);
             Serial.print(F(" status: "));
             Serial.println(message.getBool());
           }
           else 
           {
             if (message.type == V_ARMED)  {
               // Change relay state
               armed = message.getBool();
          
               // Write some debug info
               Serial.print(F("Arm status: "));
               Serial.println(message.getBool());
             }
             else
             {
               // Write some debug info
               Serial.print(F("Incoming msg type: "));
               Serial.print(message.type);
               Serial.print(F(" id: "));
               Serial.print(message.sensor);
               Serial.print(F(" content: "));
               Serial.println(message.getInt());
             }
           }
        }
        
        1 Reply Last reply
        1
        • codergirl56C Offline
          codergirl56C Offline
          codergirl56
          wrote on last edited by
          #18

          Hi @BartE - thanks for putting this together! It has been very helpful.

          I am working on a project with two wireless MFRC522 modules and RFID Reader. I want to be able to read PICC cards with the RFID reader and send it the UID between the modules. So essentially a more bare version of the code you have written with the garage door opening code. I was wondering if you could help me out in simplifying the code to just reading the UID off the PICC cards and outputting that date between the RCF522 modules.

          Thanks in advance.

          BartEB 1 Reply Last reply
          0
          • codergirl56C codergirl56

            Hi @BartE - thanks for putting this together! It has been very helpful.

            I am working on a project with two wireless MFRC522 modules and RFID Reader. I want to be able to read PICC cards with the RFID reader and send it the UID between the modules. So essentially a more bare version of the code you have written with the garage door opening code. I was wondering if you could help me out in simplifying the code to just reading the UID off the PICC cards and outputting that date between the RCF522 modules.

            Thanks in advance.

            BartEB Offline
            BartEB Offline
            BartE
            Contest Winner
            wrote on last edited by
            #19

            @codergirl56 there are a number of examples in the MFRC522 library which might help you.
            You can find them here: https://github.com/miguelbalboa/rfid

            Please feel free to ask questions if the examples does not help you further

            codergirl56C 1 Reply Last reply
            0
            • BartEB BartE

              @codergirl56 there are a number of examples in the MFRC522 library which might help you.
              You can find them here: https://github.com/miguelbalboa/rfid

              Please feel free to ask questions if the examples does not help you further

              codergirl56C Offline
              codergirl56C Offline
              codergirl56
              wrote on last edited by
              #20

              @BartE thanks for getting back to me. I've looked through the examples on the MFRC522 library. I think the main thing I'm struggling with is setting up and initializing the N24L01 module and the RFID on the same arduino uno. My plan is to have one N24L01 and RFID on one arduino module, and a second N24L01 on a second arduino. I want the RFID to read the UID off of PICC cards and be able to wirelessly transmit the UID between the N24L01 modules. I think it's simpler than the code you have written here, but I'm struggling to simplify the code you have to only what I need. Could you possibly walk through what each function in your program is used for? Thanks in advance.

              BartEB 1 Reply Last reply
              0
              • codergirl56C codergirl56

                @BartE thanks for getting back to me. I've looked through the examples on the MFRC522 library. I think the main thing I'm struggling with is setting up and initializing the N24L01 module and the RFID on the same arduino uno. My plan is to have one N24L01 and RFID on one arduino module, and a second N24L01 on a second arduino. I want the RFID to read the UID off of PICC cards and be able to wirelessly transmit the UID between the N24L01 modules. I think it's simpler than the code you have written here, but I'm struggling to simplify the code you have to only what I need. Could you possibly walk through what each function in your program is used for? Thanks in advance.

                BartEB Offline
                BartEB Offline
                BartE
                Contest Winner
                wrote on last edited by
                #21

                @codergirl56 Oke i will give it a try:

                Basic IO pin set up

                void setup() {
                        Serial.begin(BAUD);     // Initialize serial communications with the PC
                        pinMode(GARAGEPIN, OUTPUT);     // Initialise in/output ports
                        pinMode(SECONDRELAY, OUTPUT);     // Initialise in/output ports
                

                This part initializes the SPI I/O pins used by the RFID reader so it release the SPI bus for thr NFR radio

                        // Make sure MFRC will be disabled on the SPI bus
                        pinMode(RST_PIN, OUTPUT);     
                        digitalWrite(RST_PIN, LOW);
                        pinMode(SS_PIN, OUTPUT);     
                        digitalWrite(SS_PIN, LOW);
                

                Init LED and button I/O-pin

                        pinMode(LED_PIN, OUTPUT);
                        digitalWrite(LED_PIN, LOW);
                        // Setup the button
                        pinMode(SWITCH_PIN, INPUT_PULLUP);
                
                        // After setting up the button, setup debouncer
                        debouncer.attach(SWITCH_PIN);
                        debouncer.interval(5);
                

                Init radion module

                        // Init mysensors library
                        gw.begin(incomingMessage, 5);
                        gw.sendSketchInfo("RFID Garage", "1.2"); delay(RF_INIT_DELAY);
                        
                        // Register all sensors to gw (they will be created as child devices)
                        gw.present(CHILD_ID_LOCK, S_LOCK);      delay(RF_INIT_DELAY);
                        gw.present(CHILD_ID_LOCK2, S_LOCK);      delay(RF_INIT_DELAY);
                        gw.present(CHILD_ID_ALARM, S_MOTION);   delay(RF_INIT_DELAY);
                

                Read eeprom settings

                        recallEeprom();
                

                nit SPI bus for MFRC RFID sensor

                        SPI.begin();            // Init SPI bus
                        mfrc522.PCD_Init();     // Init MFRC522
                        ShowReaderDetails();            // Show details of PCD - MFRC522 Card Reader details
                
                        gw.send(lockArmMsg.set(armed));
                        Serial.println(F("Init done..."));
                }
                
                void loop() {
                        timer++;
                        delay(HEARTBEAT);
                        gw.process();
                        debouncer.update();
                
                        // Get the update value
                        int switchValue = debouncer.read();
                        if (switchValue != oldSwitchValue) {
                          // Send in the new value
                          Serial.print (F("Switch "));
                          Serial.println (switchValue);
                          
                          if (switchValue && programmode) {
                               lastTime     = millis() / 1000;
                          }
                          
                          if (!switchValue && programmode && lastTime > 0) {
                               if ( (millis() / 1000) - lastTime > 3) {
                                    Serial.println(F("Reset all cards"));  
                                    countValidCards  = 0;
                                    blinkFast(50);
                               } else {
                                  Serial.println(F("Program off"));  
                                  digitalWrite(LED_PIN, LOW);
                                  programmode = false;
                                  
                                  storeEeprom();
                               }
                          }
                          
                          if (!switchValue)   {
                              programTimer = 0;
                          }
                          oldSwitchValue = switchValue;
                        }
                        
                        if (programmode && ((timer % (ONE_SEC / HEARTBEAT)) == 0 ))  {
                            ledon = !ledon;
                            digitalWrite(LED_PIN, ledon);
                            programTimer++;
                
                            // Stop program mode after 20 sec inactivity
                            if (programTimer > PROG_WAIT)  {
                               programmode = false;
                               digitalWrite(LED_PIN, false);
                               Serial.println(F("Program expired"));  
                            }
                        }
                        
                        if ((timer % (200 / HEARTBEAT)) == 0 )   {
                             // Look for new cards
                             if ( ! mfrc522.PICC_IsNewCardPresent()) {
                                  if (releasecnt > 0)   {
                                      releasecnt--;
                                      if (!releasecnt)  {
                                          olduid.size = 0;
                                          Serial.println(F("release"));
                                      }
                                    }
                            return;
                            }
                            releasecnt = 5;
                

                Check if a RFID card is held at the RFID reader if not: skip the rest and start over with loop()

                           // 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));
                

                Check if this card is the same as the previous loop if not enter the IF loop

                           if (!olduid.size || !sameUid(&(mfrc522.uid), &olduid))  {
                                ShowCardData(&(mfrc522.uid));
                                copyUid(&(mfrc522.uid), &olduid);
                                if ( isValidCard(&olduid) )   {
                                     OpenDoor(programmode);
                                } else  {
                

                Check if the master card was presented and the button was pressed enter program mode

                                   if (sameUid(&(mfrc522.uid), &masterkey)) {
                                       // Only switch in program mode when mastercard is found AND the program button is pressed
                                       if (switchValue)  {
                                         Serial.println(F("Program mode"));
                                         programmode = true;
                                         programTimer = 0;
                                         lastTime     = 0;
                                       } else {
                                         OpenDoor2(programmode);
                                       }
                                   } else {
                

                If not the master card and this card in not known and we're in program mode add this as a new card

                                       if (programmode) {
                                         Serial.println(F("new card"));
                                         programTimer = 0;
                                         
                                         if (countValidCards < MAX_CARDS)
                                         {
                                            // Add card to list...
                                            copyUid(&(mfrc522.uid), &validCards[countValidCards]);
                                            countValidCards++;
                                            blinkFast(15);
                                         }
                                       } else {
                                         Serial.println(F("Invalid card"));
                                         if (armed) {
                                            gw.send(wrongMsg.set(1));
                                            delay(2000);
                                            gw.send(wrongMsg.set(0));
                                         }
                                       }
                                   }
                                }
                           }
                        }
                }
                

                These are support functions

                void ShowCardData(MFRC522::Uid* uid) 
                {
                    Serial.print(F("Card UID:"));
                    for (byte i = 0; i < uid->size; i++) {
                        if(uid->uidByte[i] < 0x10) {
                            Serial.print(F(" 0"));
                        } else {
                            Serial.print(F(" "));
                                }
                        Serial.print(uid->uidByte[i], HEX);
                    } 
                    Serial.println();
                }
                
                void copyUid(MFRC522::Uid* src, MFRC522::Uid* dest)
                {
                    dest->size = src->size;
                    dest->sak  = src->sak;
                    
                    for (byte i = 0; i < src->size; i++) {
                    dest->uidByte[i] = src->uidByte[i];
                    }
                }
                
                bool sameUid(MFRC522::Uid* old, MFRC522::Uid* check)
                {
                    if (old->size != check->size) {
                       return false;
                    }
                    for (byte i = 0; i < old->size; i++) {
                        if (old->uidByte[i] != check->uidByte[i]) {
                            return false;
                        }
                    }
                    return true;
                }
                
                bool isValidCard(MFRC522::Uid* uid)
                {
                      for (byte i = 0; i < countValidCards; i++)  {
                          if (validCards[i].size != uid->size)  {
                              break;
                          }
                          for (int j = 0; j < uid->size; j++) {
                              if (validCards[i].uidByte[j] != uid->uidByte[j])  {
                                  break;
                              }
                              if (j == (uid->size - 1)) {  
                                  return true;
                              }
                          }
                      }
                      return false;
                }
                
                
                void storeEeprom()
                {
                    byte address = 0;
                    gw.saveState(address++, countValidCards);
                    
                    for (byte i = 0; i < countValidCards; i++) {
                       gw.saveState(address++, validCards[i].size);
                       for (byte j = 0; j < 10; j++) {
                          gw.saveState(address++, validCards[i].uidByte[j]);
                       } 
                    }
                }
                
                void recallEeprom()
                {
                    byte address = 0;
                    
                    countValidCards = gw.loadState(address++);
                    if (countValidCards > MAX_CARDS) {
                       Serial.println(F("Not a valid EEPROM reading set to default"));
                       countValidCards = 0;
                       storeEeprom();
                       return;
                    }
                    
                    for (byte i = 0; i < countValidCards; i++)  {
                       validCards[i].size = gw.loadState(address++);
                       for (byte j = 0; j < 10; j++)  {
                          validCards[i].uidByte[j] = gw.loadState(address++);
                       } 
                    }
                  
                }
                
                void blinkFast(int times)
                {
                    for (int i = 0; i < times; i++) { 
                       ledon = !ledon;
                       digitalWrite(LED_PIN, ledon);
                       delay(100);
                    }
                }
                
                void OpenDoor(bool fakeOpen)
                {
                    Serial.println(F("Open door!"));
                    gw.send(lockMsg.set(false));
                    
                    if (!fakeOpen) { 
                      digitalWrite(LED_PIN, HIGH);
                      digitalWrite(GARAGEPIN, HIGH); 
                    }
                    delay(1000);
                    
                    if (!fakeOpen) { 
                      digitalWrite(GARAGEPIN, LOW); 
                      digitalWrite(LED_PIN, LOW);
                    }
                    
                    gw.send(lockMsg.set(true));
                }
                
                void OpenDoor2(bool fakeOpen)
                {
                    Serial.println(F("Open door 2!"));
                    gw.send(lock2Msg.set(false));
                    
                    if (!fakeOpen) { 
                      digitalWrite(LED_PIN, HIGH);
                      digitalWrite(SECONDRELAY, HIGH); 
                    }
                    delay(1000);
                    
                    if (!fakeOpen) { 
                      digitalWrite(SECONDRELAY, LOW); 
                      digitalWrite(LED_PIN, LOW);
                    }
                    
                    gw.send(lock2Msg.set(true));
                }
                
                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?"));
                    }
                }
                
                
                void incomingMessage(const MyMessage &message) 
                {
                   if (message.type == V_LOCK_STATUS) {
                     // Change relay state
                     if (!message.getBool())  {
                        switch (message.sensor)
                        {
                           case CHILD_ID_LOCK:
                              OpenDoor(false);
                              break;
                           case CHILD_ID_LOCK2:
                              OpenDoor2(false);
                              break;
                        }
                     }
                  
                     // Write some debug info
                     Serial.print(F("Lock:  "));
                     Serial.print(message.sensor);
                     Serial.print(F(" status: "));
                     Serial.println(message.getBool());
                   }
                   else 
                   {
                     if (message.type == V_ARMED)  {
                       // Change relay state
                       armed = message.getBool();
                  
                       // Write some debug info
                       Serial.print(F("Arm status: "));
                       Serial.println(message.getBool());
                     }
                     else
                     {
                       // Write some debug info
                       Serial.print(F("Incoming msg type: "));
                       Serial.print(message.type);
                       Serial.print(F(" id: "));
                       Serial.print(message.sensor);
                       Serial.print(F(" content: "));
                       Serial.println(message.getInt());
                     }
                   }
                }
                1 Reply Last reply
                1
                • BartEB BartE

                  @SVLoneStar That should work, did you try the sketch shown in the topic?

                  The function recallEeprom(); reads the EEPROM content and after closing the program mode this function storeEeprom();
                  writes the EEPROM. Please add some debug info (Serial.print) and validate that these functions actually are called on

                  • recallEeprom(); --> on start up
                  • storeEeprom(); --> ending program mode.
                  ChakkieC Offline
                  ChakkieC Offline
                  Chakkie
                  wrote on last edited by
                  #22

                  @BartE

                  Hi BartE, I have the same issue regarding tags lost after power off. I run the debug instruction using Serial print as you mentioned. I found out that the storeEeprom line did not run after closing the program mode. I think this is why the tags are lost after power cycle.

                  send: 210-210-0-0 s=255,c=3,t=15,pt=2,l=2,sg=0,st=ok:0
                  send: 210-210-0-0 s=255,c=0,t=17,pt=0,l=5,sg=0,st=ok:1.5.4
                  send: 210-210-0-0 s=255,c=3,t=6,pt=1,l=1,sg=0,st=ok:0
                  read: 0-0-210 s=255,c=3,t=6,pt=0,l=1,sg=0:M
                  sensor started, id=210, parent=0, distance=1
                  send: 210-210-0-0 s=255,c=3,t=11,pt=0,l=9,sg=0,st=ok:RFID Lock
                  send: 210-210-0-0 s=255,c=3,t=12,pt=0,l=3,sg=0,st=ok:1.1
                  send: 210-210-0-0 s=2,c=0,t=19,pt=0,l=0,sg=0,st=ok:
                  send: 210-210-0-0 s=1,c=0,t=1,pt=0,l=0,sg=0,st=ok:
                  RecallEeprom
                  MFRC522 Software Version: 0x92 = v2.0
                  send: 210-210-0-0 s=1,c=1,t=15,pt=2,l=2,sg=0,st=ok:1
                  Init done...
                  Switch 1
                  Card UID: 26 13 80 41
                  Invalid card
                  send: 210-210-0-0 s=1,c=1,t=16,pt=2,l=2,sg=0,st=ok:1
                  send: 210-210-0-0 s=1,c=1,t=16,pt=2,l=2,sg=0,st=ok:0
                  release
                  Card UID: xx xx xx xx
                  Program mode
                  release
                  Card UID: xx xx xx xx
                  new card
                  release
                  Program expired
                  

                  Thanks

                  Raspberry Pi 2
                  Domoticz
                  RFXCOM
                  ZWAVE Aeon stick
                  Coming soon Arduino mysensors GW

                  1 Reply Last reply
                  0
                  • BartEB BartE

                    @SVLoneStar That should work, did you try the sketch shown in the topic?

                    The function recallEeprom(); reads the EEPROM content and after closing the program mode this function storeEeprom();
                    writes the EEPROM. Please add some debug info (Serial.print) and validate that these functions actually are called on

                    • recallEeprom(); --> on start up
                    • storeEeprom(); --> ending program mode.
                    ChakkieC Offline
                    ChakkieC Offline
                    Chakkie
                    wrote on last edited by
                    #23

                    @BartE

                    I've just solved the issue regarding tags lost after power off.

                    Simply add the line "StoreEeprom();" after the program mode function

                      if (programmode && ((timer % (ONE_SEC / HEARTBEAT)) == 0 ))  {
                                ledon = !ledon;
                                digitalWrite(LED_PIN, ledon);
                                programTimer++;
                    
                                // Stop program mode after 20 sec inactivity
                                if (programTimer > PROG_WAIT)  {
                                   programmode = false;
                                   digitalWrite(LED_PIN, false);
                                   Serial.println(F("Program expired"));  
                    
                                   storeEeprom();
                                   Serial.println(F("Store Card to EEPROM"));  ```

                    Raspberry Pi 2
                    Domoticz
                    RFXCOM
                    ZWAVE Aeon stick
                    Coming soon Arduino mysensors GW

                    BartEB 1 Reply Last reply
                    0
                    • ChakkieC Chakkie

                      @BartE

                      I've just solved the issue regarding tags lost after power off.

                      Simply add the line "StoreEeprom();" after the program mode function

                        if (programmode && ((timer % (ONE_SEC / HEARTBEAT)) == 0 ))  {
                                  ledon = !ledon;
                                  digitalWrite(LED_PIN, ledon);
                                  programTimer++;
                      
                                  // Stop program mode after 20 sec inactivity
                                  if (programTimer > PROG_WAIT)  {
                                     programmode = false;
                                     digitalWrite(LED_PIN, false);
                                     Serial.println(F("Program expired"));  
                      
                                     storeEeprom();
                                     Serial.println(F("Store Card to EEPROM"));  ```
                      BartEB Offline
                      BartEB Offline
                      BartE
                      Contest Winner
                      wrote on last edited by
                      #24

                      @Chakkie sorry for the slow response (i was on a pre summer holiday)

                      Thx for analyzing this report. The fix you did made is not what i meant with program expired.

                      The idea is that you start program mode by pressing the program button and holding the master card.
                      And now one can add one or more new RFID cards and when your oke press the program button for a short period to END the program mode and store the new cards.

                      If you wait too long the program mode will expire and the new cards are NOT stored. Off course you can change this behavior by adding this line as you suggested.

                      1 Reply Last reply
                      1
                      • Michel - ItM Offline
                        Michel - ItM Offline
                        Michel - It
                        wrote on last edited by Michel - It
                        #25

                        hello to all guys, I noticed some problems, if the power goes away there is a flaw in the system. I modified the source as needed to me, now you turn the sensor on domoticz when you turn on and off when you turn off. I modified the project to create an alarm homemade I configured via lua script the motion sensors. I mounted on the bell so as to turn on and off when I go out or within the home. thank you all

                        0_1464953572731_rfidCompreto.jpg 0_1464953579700_rfidmoduloporta-180x180.jpg 0_1464953586849_rfidcentralina-180x180.jpg
                        0_1464953864460_mysensor nano+radio+rfid_pcb.jpg
                        0_1464954180603_allarm.jpg

                        1 Reply Last reply
                        0
                        • electromakerE Offline
                          electromakerE Offline
                          electromaker
                          wrote on last edited by
                          #26

                          Hi Everyone,
                          I have tested this code http://etabetastudio.blogspot.it/2016/07/tutorial-lettore-rfid-rc522-arduino-idea.html to test RFID RC-522 with Arduino 2009 and all is ok, also to registred RFID card on EEPROM...
                          I hope to help uo...bye

                          1 Reply Last reply
                          0
                          • Mercury69M Offline
                            Mercury69M Offline
                            Mercury69
                            wrote on last edited by
                            #27

                            Dear All,

                            I'm a newbie and I found in MySensors website the project for RFID Lock Sensors that use PN532 RFID Reader, but as I already have with me a RC-522 RFID reader, searching on the forum I found this post that I thinked it will suit my case.

                            I assembled the various hardware parts as described on first post, but when I copied the sketch code in my arduino IDE, I'm not able to get it work.

                            I get some error message that is not so clear for me.

                            It's seems the sketch is for a previous version of MySensors Library or Arduino IDE, but I'm not sure of this.

                            As I use Arduino IDE 1.6.12 that has included MySensors Library 2.0.0, is the Sketch you included in the first post already valid for that setup ?

                            It' will be possible to have a valid sketch working with new setup or eventually to know how to proceed to make the actual one working ?

                            Thank you in advance for your attention.

                            Rod MacPhersonR 1 Reply Last reply
                            0
                            • Mercury69M Mercury69

                              Dear All,

                              I'm a newbie and I found in MySensors website the project for RFID Lock Sensors that use PN532 RFID Reader, but as I already have with me a RC-522 RFID reader, searching on the forum I found this post that I thinked it will suit my case.

                              I assembled the various hardware parts as described on first post, but when I copied the sketch code in my arduino IDE, I'm not able to get it work.

                              I get some error message that is not so clear for me.

                              It's seems the sketch is for a previous version of MySensors Library or Arduino IDE, but I'm not sure of this.

                              As I use Arduino IDE 1.6.12 that has included MySensors Library 2.0.0, is the Sketch you included in the first post already valid for that setup ?

                              It' will be possible to have a valid sketch working with new setup or eventually to know how to proceed to make the actual one working ?

                              Thank you in advance for your attention.

                              Rod MacPhersonR Offline
                              Rod MacPhersonR Offline
                              Rod MacPherson
                              wrote on last edited by
                              #28

                              @Mercury69
                              It was written prior to the MySensors 2.0 update.

                              You can convert pre- 2.0 sketches by following the instructions on https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x

                              If you need a hand just post here with your question, I'll try to help, but it's really not too bad once you get started. I'm in the process of converting all of my code to 2.0 as well.

                              Mercury69M 1 Reply Last reply
                              0
                              • Rod MacPhersonR Rod MacPherson

                                @Mercury69
                                It was written prior to the MySensors 2.0 update.

                                You can convert pre- 2.0 sketches by following the instructions on https://forum.mysensors.org/topic/4276/converting-a-sketch-from-1-5-x-to-2-0-x

                                If you need a hand just post here with your question, I'll try to help, but it's really not too bad once you get started. I'm in the process of converting all of my code to 2.0 as well.

                                Mercury69M Offline
                                Mercury69M Offline
                                Mercury69
                                wrote on last edited by
                                #29

                                @Rod-MacPherson
                                Dear Rod, thank you for the suggestion you gave me.
                                Following the instruction you indicated me, I was able to make the sketch working with new MySensors 2.0 library.

                                Considering that I'm not a programmer, it was quite easy to make the sketch working.

                                Thank you again for your suggestion and off course thank you to BartE for the good original work he did.

                                If someone need new sketch working with library 2.0, feel free to ask me.

                                Michel - ItM J 2 Replies Last reply
                                0
                                • Mercury69M Mercury69

                                  @Rod-MacPherson
                                  Dear Rod, thank you for the suggestion you gave me.
                                  Following the instruction you indicated me, I was able to make the sketch working with new MySensors 2.0 library.

                                  Considering that I'm not a programmer, it was quite easy to make the sketch working.

                                  Thank you again for your suggestion and off course thank you to BartE for the good original work he did.

                                  If someone need new sketch working with library 2.0, feel free to ask me.

                                  Michel - ItM Offline
                                  Michel - ItM Offline
                                  Michel - It
                                  wrote on last edited by
                                  #30

                                  @Mercury69 you can post the sketch ?

                                  1 Reply Last reply
                                  0
                                  • Mercury69M Mercury69

                                    @Rod-MacPherson
                                    Dear Rod, thank you for the suggestion you gave me.
                                    Following the instruction you indicated me, I was able to make the sketch working with new MySensors 2.0 library.

                                    Considering that I'm not a programmer, it was quite easy to make the sketch working.

                                    Thank you again for your suggestion and off course thank you to BartE for the good original work he did.

                                    If someone need new sketch working with library 2.0, feel free to ask me.

                                    J Offline
                                    J Offline
                                    jeti
                                    wrote on last edited by
                                    #31

                                    @Mercury69 I would also love to have a look at your scetch!

                                    1 Reply Last reply
                                    0
                                    • miroM Offline
                                      miroM Offline
                                      miro
                                      wrote on last edited by
                                      #32

                                      @Mercury69

                                      Please, I would also like to see your code if it possible.

                                      1 Reply Last reply
                                      0
                                      • cadetC Offline
                                        cadetC Offline
                                        cadet
                                        wrote on last edited by
                                        #33

                                        Hi Rod

                                        Can you modify your code for 2.0 lib ?

                                        Thank you
                                        Andrey

                                        1 Reply Last reply
                                        0
                                        • gohanG Offline
                                          gohanG Offline
                                          gohan
                                          Mod
                                          wrote on last edited by gohan
                                          #34

                                          Here is the new code for lib 2.0, but I am having some problem with initialization of rc522. I connected RST tu D7 and SDA to D8. Any idea what to look for?

                                          /*
                                          * ----------------------------------------------------------------------------
                                          * This is a MFRC522 library example; see https://github.com/miguelbalboa/rfid
                                          * for further details and other examples.
                                          *
                                          * NOTE: The library file MFRC522.h has a lot of useful info. Please read it.
                                          *
                                          * Released into the public domain.
                                          * ----------------------------------------------------------------------------
                                          * 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    Arduino          Arduino
                                          *             Reader/PCD   Uno           Mega      Nano v3    Leonardo/Micro   Pro Micro
                                          * Signal      Pin          Pin           Pin       Pin        Pin              Pin
                                          * -----------------------------------------------------------------------------------------
                                          * RST/Reset   RST          9             5         D9         RESET/ICSP-5     RST
                                          * SPI SS      SDA(SS)      10            53        D10        10               10
                                          * SPI MOSI    MOSI         11 / ICSP-4   51        D11        ICSP-4           16
                                          * SPI MISO    MISO         12 / ICSP-1   50        D12        ICSP-1           14
                                          * SPI SCK     SCK          13 / ICSP-3   52        D13        ICSP-3           15
                                          */
                                          
                                          /*
                                          RFID Garagedoor opener by Bart Eversdijk
                                          
                                          This sketch is to open a Garage door with an mifare RIFD-tag
                                          
                                          For an Arduino Nano v3
                                          Connection wiring :
                                          - nrf24l01+ as descibed on the MySensors website
                                          - MFRC522 reader/writer as described above EXCEPT for pin D9 and D10:  connect RST i.s.o. pin D9 to pin D7 and connect SDA(SS) i.s.o. pin D10 to pin D8
                                          - LED with 470ohm resistor between GMD and pin A3
                                          - push button between GND and pin D5
                                          - 5v relays coil between GND and  pin D4 -> switch pins of the relays should be connected in parallel with your garage door push button.
                                          
                                          Features:
                                          This project can record up to 18 RFID-"tags"
                                          These card IDs are stored in to EEPROM by keeping them next to the RFID reader when the system in program mode. (Slow blinking LED) When a card is accepted as new card the LED will blink fast for a short time.
                                          To keep the master-tags (choose your own) next to the RFID reader when pressing the push button. To clear all cards (except the master card) press the push button in program mode for 6 seconds. The LED will now fast blink for a couple of seconds.
                                          
                                          Your garage your can be opened by keep a registered RFID tag next to the reader or by clicking the open icon on lock node presented by this plugin.
                                          By by-passing the alarm node presented by this plug in the RFID will be temporarily disabled.
                                          When an incorrect (not registered) RFID tag is scanned the alarm is triggered to detect illegal scan attempts
                                          
                                          */ 
                                          #include <MySensors.h>
                                          #include <SPI.h>
                                          #include <MFRC522.h> 
                                          #include <Bounce2.h>
                                          
                                          #define RF_INIT_DELAY   125
                                          #define ONE_SEC         1000
                                          #define MAX_CARDS       18
                                          #define PROG_WAIT       10
                                          #define HEARTBEAT       10
                                          #define BAUD            115200
                                          
                                          /*Pin definitions*/
                                          #define LED_PIN         A3
                                          #define GARAGEPIN       4
                                          #define SWITCH_PIN      5
                                          #define RST_PIN		7		//  MFRC 
                                          #define SS_PIN		8		//  MFRC 
                                          
                                          MFRC522      mfrc522(SS_PIN, RST_PIN);	// Create MFRC522 instance
                                          MFRC522::Uid olduid;
                                          MFRC522::Uid masterkey = { 10,{ 0,0,0,0, 0,0,0,0, 0,0 },  0 };
                                          
                                          byte       countValidCards = 0;
                                          MFRC522::Uid validCards[MAX_CARDS];
                                          
                                          void       ShowCardData(MFRC522::Uid* uid);
                                          bool       sameUid(MFRC522::Uid* old, MFRC522::Uid* check);
                                          void       copyUid(MFRC522::Uid* src, MFRC522::Uid* dest);
                                          bool       isValidCard(MFRC522::Uid* uid);
                                          int        releasecnt = 0;
                                          
                                          #define    CHILD_ID_ALARM    1
                                          #define    CHILD_ID_LOCK     2
                                          Bounce     debouncer = Bounce();
                                          
                                          int        oldSwitchValue = -1;
                                          int        switchValue = 0;
                                          long       timer = -1;
                                          bool       programmode = false;
                                          bool       ledon;
                                          int        programTimer = 0;
                                          bool       armed = true;
                                          unsigned long lastTime = 0;
                                          
                                          MyMessage  lockMsg(CHILD_ID_LOCK, V_LOCK_STATUS);
                                          MyMessage  lockArmMsg(CHILD_ID_ALARM, V_ARMED);
                                          MyMessage  wrongMsg(CHILD_ID_ALARM, V_TRIPPED);
                                          
                                          void setup() {
                                          	Serial.begin(BAUD);		// Initialize serial communications with the PC
                                          	pinMode(GARAGEPIN, OUTPUT);     // Initialise in/output ports
                                          
                                          									// Make sure MFRC will be disabled on the SPI bus
                                          	pinMode(RST_PIN, OUTPUT);
                                          	digitalWrite(RST_PIN, LOW);
                                          	pinMode(SS_PIN, OUTPUT);
                                          	digitalWrite(SS_PIN, LOW);
                                          
                                          	pinMode(LED_PIN, OUTPUT);
                                          	digitalWrite(LED_PIN, LOW);
                                          	// Setup the button
                                          	pinMode(SWITCH_PIN, INPUT);
                                          	// Activate internal pull-up
                                          	digitalWrite(SWITCH_PIN, HIGH);
                                          
                                          	// After setting up the button, setup debouncer
                                          	debouncer.attach(SWITCH_PIN);
                                          	debouncer.interval(5);
                                          
                                          	// Init mysensors library
                                          	
                                          	sendSketchInfo("RFID Garage", "1.1"); delay(RF_INIT_DELAY);
                                          
                                          	// Register all sensors to gw (they will be created as child devices)
                                          	present(CHILD_ID_LOCK, S_LOCK);      delay(RF_INIT_DELAY);
                                          	present(CHILD_ID_ALARM, S_MOTION);   delay(RF_INIT_DELAY);
                                          
                                          	recallEeprom();
                                          
                                          	// Init MFRC RFID sensor
                                          	SPI.begin();			// Init SPI bus
                                          	mfrc522.PCD_Init();		// Init MFRC522
                                          	ShowReaderDetails();	        // Show details of PCD - MFRC522 Card Reader details
                                          
                                          	send(lockArmMsg.set(armed));
                                          	Serial.println(F("Init done..."));
                                          }
                                          
                                          void loop() {
                                          	timer++;
                                          	delay(HEARTBEAT);
                                          	debouncer.update();
                                          
                                          	// Get the update value
                                          	int switchValue = debouncer.read();
                                          	if (switchValue != oldSwitchValue) {
                                          		// Send in the new value
                                          		Serial.print(F("Switch "));
                                          		Serial.println(switchValue);
                                          
                                          		if (switchValue && programmode) {
                                          			lastTime = millis() / 1000;
                                          		}
                                          
                                          		if (!switchValue && programmode && lastTime > 0) {
                                          			if ((millis() / 1000) - lastTime > 3) {
                                          				Serial.println(F("Reset all cards"));
                                          				countValidCards = 0;
                                          				blinkFast(50);
                                          			}
                                          			else {
                                          				Serial.println(F("Program off"));
                                          				digitalWrite(LED_PIN, LOW);
                                          				programmode = false;
                                          
                                          				storeEeprom();
                                          			}
                                          		}
                                          
                                          		if (!switchValue) {
                                          			programTimer = 0;
                                          		}
                                          		oldSwitchValue = switchValue;
                                          	}
                                          
                                          	if (programmode && ((timer % (ONE_SEC / HEARTBEAT)) == 0)) {
                                          		ledon = !ledon;
                                          		digitalWrite(LED_PIN, ledon);
                                          		programTimer++;
                                          
                                          		// Stop program mode after 20 sec inactivity
                                          		if (programTimer > PROG_WAIT) {
                                          			programmode = false;
                                          			digitalWrite(LED_PIN, false);
                                          			Serial.println(F("Program expired"));
                                          		}
                                          	}
                                          
                                          	if ((timer % (200 / HEARTBEAT)) == 0) {
                                          		// Look for new cards
                                          		if (!mfrc522.PICC_IsNewCardPresent()) {
                                          			if (releasecnt > 0) {
                                          				releasecnt--;
                                          				if (!releasecnt) {
                                          					olduid.size = 0;
                                          					Serial.println(F("release"));
                                          				}
                                          			}
                                          			return;
                                          		}
                                          		releasecnt = 5;
                                          
                                          		// 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));
                                          		if (!olduid.size || !sameUid(&(mfrc522.uid), &olduid)) {
                                          			ShowCardData(&(mfrc522.uid));
                                          			copyUid(&(mfrc522.uid), &olduid);
                                          			if (isValidCard(&olduid)) {
                                          				OpenDoor(programmode);
                                          			}
                                          			else {
                                          
                                          				if (sameUid(&(mfrc522.uid), &masterkey)) {
                                          					// Only switch in program mode when mastercard is found AND the program button is pressed
                                          					if (switchValue) {
                                          						Serial.println(F("Program mode"));
                                          						programmode = true;
                                          						programTimer = 0;
                                          						lastTime = 0;
                                          					}
                                          				}
                                          				else {
                                          					if (programmode) {
                                          						Serial.println(F("new card"));
                                          						programTimer = 0;
                                          
                                          						if (countValidCards < MAX_CARDS)
                                          						{
                                          							// Add card to list...
                                          							copyUid(&(mfrc522.uid), &validCards[countValidCards]);
                                          							countValidCards++;
                                          							blinkFast(15);
                                          						}
                                          					}
                                          					else {
                                          						Serial.println(F("Invalid card"));
                                          						if (armed) {
                                          							send(wrongMsg.set(1));
                                          							delay(2000);
                                          							send(wrongMsg.set(0));
                                          						}
                                          					}
                                          				}
                                          			}
                                          		}
                                          	}
                                          }
                                          
                                          void ShowCardData(MFRC522::Uid* uid) {
                                          	Serial.print(F("Card UID:"));
                                          	for (byte i = 0; i < uid->size; i++) {
                                          		if (uid->uidByte[i] < 0x10) {
                                          			Serial.print(F(" 0"));
                                          		}
                                          		else {
                                          			Serial.print(F(" "));
                                          		}
                                          		Serial.print(uid->uidByte[i], HEX);
                                          	}
                                          	Serial.println();
                                          }
                                          
                                          void copyUid(MFRC522::Uid* src, MFRC522::Uid* dest)
                                          {
                                          	dest->size = src->size;
                                          	dest->sak = src->sak;
                                          
                                          	for (byte i = 0; i < src->size; i++) {
                                          		dest->uidByte[i] = src->uidByte[i];
                                          	}
                                          }
                                          
                                          bool sameUid(MFRC522::Uid* old, MFRC522::Uid* check)
                                          {
                                          	if (old->size != check->size) {
                                          		return false;
                                          	}
                                          	for (byte i = 0; i < old->size; i++) {
                                          		if (old->uidByte[i] != check->uidByte[i]) {
                                          			return false;
                                          		}
                                          	}
                                          	return true;
                                          }
                                          
                                          bool isValidCard(MFRC522::Uid* uid)
                                          {
                                          	for (byte i = 0; i < countValidCards; i++) {
                                          		if (validCards[i].size != uid->size) {
                                          			break;
                                          		}
                                          		for (int j = 0; j < uid->size; j++) {
                                          			if (validCards[i].uidByte[j] != uid->uidByte[j]) {
                                          				break;
                                          			}
                                          			if (j == (uid->size - 1)) {
                                          				return true;
                                          			}
                                          		}
                                          	}
                                          	return false;
                                          }
                                          
                                          
                                          void storeEeprom()
                                          {
                                          	byte address = 0;
                                          	saveState(address++, countValidCards);
                                          
                                          	for (byte i = 0; i < countValidCards; i++) {
                                          		saveState(address++, validCards[i].size);
                                          		for (byte j = 0; j < 10; j++) {
                                          			saveState(address++, validCards[i].uidByte[j]);
                                          		}
                                          	}
                                          }
                                          
                                          void recallEeprom()
                                          {
                                          	byte address = 0;
                                          
                                          	countValidCards = loadState(address++);
                                          	if (countValidCards > MAX_CARDS) {
                                          		Serial.println(F("Not a valid EEPROM reading set to default"));
                                          		countValidCards = 0;
                                          		storeEeprom();
                                          		return;
                                          	}
                                          
                                          	for (byte i = 0; i < countValidCards; i++) {
                                          		validCards[i].size = loadState(address++);
                                          		for (byte j = 0; j < 10; j++) {
                                          			validCards[i].uidByte[j] = loadState(address++);
                                          		}
                                          	}
                                          
                                          }
                                          
                                          void blinkFast(int times)
                                          {
                                          	for (int i = 0; i < times; i++) {
                                          		ledon = !ledon;
                                          		digitalWrite(LED_PIN, ledon);
                                          		delay(100);
                                          	}
                                          }
                                          
                                          void OpenDoor(bool fakeOpen)
                                          {
                                          	Serial.println(F("Open door!"));
                                          	send(lockMsg.set(false));
                                          
                                          	if (!fakeOpen) {
                                          		digitalWrite(LED_PIN, HIGH);
                                          		digitalWrite(GARAGEPIN, HIGH);
                                          	}
                                          	delay(1000);
                                          
                                          	if (!fakeOpen) {
                                          		digitalWrite(GARAGEPIN, LOW);
                                          		digitalWrite(LED_PIN, LOW);
                                          	}
                                          
                                          	send(lockMsg.set(true));
                                          }
                                          
                                          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?"));
                                          	}
                                          }
                                          
                                          
                                          void incomingMessage(const MyMessage &message)
                                          {
                                          	if (message.type == V_LOCK_STATUS) {
                                          		// Change relay state
                                          		if (!message.getBool()) {
                                          			OpenDoor(false);
                                          		}
                                          
                                          		// Write some debug info
                                          		Serial.print(F("Lock status: "));
                                          		Serial.println(message.getBool());
                                          	}
                                          	else
                                          	{
                                          		if (message.type == V_ARMED) {
                                          			// Change relay state
                                          			armed = message.getBool();
                                          
                                          			// Write some debug info
                                          			Serial.print(F("Arm status: "));
                                          			Serial.println(message.getBool());
                                          		}
                                          		else
                                          		{
                                          			// Write some debug info
                                          			Serial.print(F("Incoming msg type: "));
                                          			Serial.print(message.type);
                                          			Serial.print(F(" id: "));
                                          			Serial.print(message.sensor);
                                          			Serial.print(F(" content: "));
                                          			Serial.println(message.getInt());
                                          		}
                                          	}
                                          }
                                          
                                          BartEB 2 Replies Last reply
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