test.ino

#include <ESP8266WiFi.h>
#include <Firebase_ESP_Client.h>
#include <addons/TokenHelper.h>
#include <WiFiUdp.h>
#include <NTPClient.h>
#include <TimeLib.h>

#include <Keypad.h>
#include <SPI.h>
#include <MFRC522.h>

WiFiUDP ntpUDP;
NTPClient timeClient(ntpUDP, "pool.ntp.org", 19800, 60000); 

#define SS_PIN 2
#define RST_PIN 0


#define WIFI_SSID "Nijo"
#define WIFI_PASSWORD "123456789"
#define API_KEY "AIzaSyD9QSTkTQNcMGfni3NpnidQNYBEVaiZjxs"
#define FIREBASE_PROJECT_ID "lift-access-control"
#define USER_EMAIL "navaf_18@gmail.com"
#define USER_PASSWORD "11111111"

FirebaseData fbdo;
FirebaseAuth auth;
FirebaseConfig config;


const byte n_rows = 1; 
const byte n_cols = 3; 
char keys[n_rows][n_cols] = {
  {'1','2','3'}
};


byte colPins[n_cols] = {5 ,4 ,10};
byte rowPins[n_rows] = {16}; 

Keypad myKeypad = Keypad( makeKeymap(keys), rowPins, colPins, n_rows, n_cols);

 
MFRC522 rfid(SS_PIN, RST_PIN); 

MFRC522::MIFARE_Key key; 

char myKey = NO_KEY;
byte nuidPICC[4];

int temp_buf = 0;
int user_1 = 111,user_2 = 104, user_3 = 198;
int keyValue;
int current_lift_position = 0;
void printDec(byte *buffer, byte bufferSize) {
  for (byte i = 0; i < bufferSize; i++) {
    

  }


temp_buf = buffer[bufferSize - 2];

  if(temp_buf == user_1)
{
  Serial.println("Granted");
  
}
  else if(temp_buf == user_2)
{
  Serial.println("Granted");
    
}
  else if(temp_buf == user_3)
{
  Serial.println("Granted");
   
}

else
{
 Serial.println("Denied"); 
}
  
}







void setup() { 
  Serial.begin(115200);
  SPI.begin(); 
  rfid.PCD_Init(); 
  timeClient.begin();

  for (byte i = 0; i < 6; i++) {
    key.keyByte[i] = 0xFF;
  }

  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();


  Serial.printf("Firebase Client v%s\n\n", FIREBASE_CLIENT_VERSION);
  config.api_key = API_KEY;
  auth.user.email = USER_EMAIL;
  auth.user.password = USER_PASSWORD;
  config.token_status_callback = tokenStatusCallback;  
  Firebase.begin(&config, &auth);
  Firebase.reconnectWiFi(true);

}
 
void loop() {




  if ( ! rfid.PICC_IsNewCardPresent())
    return;
    
  if ( ! rfid.PICC_ReadCardSerial())
    return;


  MFRC522::PICC_Type piccType = rfid.PICC_GetType(rfid.uid.sak);
 
  if (piccType != MFRC522::PICC_TYPE_MIFARE_MINI &&  
    piccType != MFRC522::PICC_TYPE_MIFARE_1K &&
    piccType != MFRC522::PICC_TYPE_MIFARE_4K) {
  
    return;
  }


  
  printDec(rfid.uid.uidByte, rfid.uid.size);
  rfid.PICC_HaltA();
  rfid.PCD_StopCrypto1();



  if (temp_buf == 111 || temp_buf == 104 || temp_buf == 198)
  {
  while (myKey == NO_KEY){
    myKey = myKeypad.getKey();
    delay(10);
  }
  Serial.println(myKey);
  }






if (temp_buf == 111)
{
String Path = "users/joelblesson2003@gmail.com";
update_db(myKey , Path);

}


if (temp_buf == 104)
{
String Path = "users/ganeshjohn253@gmail.com";
update_db(myKey , Path);

}

if (temp_buf == 198)
{
String Path = "users/navaf_18@gmail.com";
update_db(myKey , Path);

}



}




int update_db(char key , String documentPath)
{


String current_lift_path = "current_lift/current_lift_position";
if (key >= '0' && key <= '9') {
    keyValue = key - '0';
    
} 
timeClient.update();
  unsigned long epochTime = timeClient.getEpochTime();
  setTime(epochTime);
  


  
char time_buffer[25];
  sprintf(time_buffer, "%04d-%02d-%02d %02d:%02d:%02d", year(), month(), day(), hour(), minute(), second());
    //Serial.println(time_buffer);
 
int floorNumber = 120;

FirebaseJson content;
FirebaseJson arrayEntry;

arrayEntry.set("mapValue/fields/Traveled_to/integerValue", keyValue);
arrayEntry.set("mapValue/fields/timestamp/stringValue", time_buffer);

content.set("fields/liftUsage/arrayValue/values", arrayEntry);


FirebaseJson liftPositionContent;
FirebaseJson liftPositionTime;
liftPositionContent.set("fields/lift_position/integerValue", keyValue);
liftPositionContent.set("fields/timestamp/stringValue", time_buffer); 
Firebase.Firestore.patchDocument(&fbdo, FIREBASE_PROJECT_ID, "", current_lift_path, liftPositionContent.raw(), "");
    
Firebase.Firestore.patchDocument(&fbdo, FIREBASE_PROJECT_ID, "", documentPath.c_str(), content.raw(), "liftUsage");

      
      
  temp_buf = 0;
  myKey = NO_KEY;
  delay(100);

 return 0; 
}