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Intelligent access control based on arduino uno and LCD

Jeanmarie Waska

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Joined
Jul 30, 2021
Messages
20
Likes
3
Required materials
Realized function

1. card registration.
2. username and password registration.
3. card swipe to unlock the electronic lock.
4. User name and password to unlock the electronic lock.

Connection diagram

QQ图片20210917174931.png


GUI design

GUI design.png


code sharing

C: 
#include <SPI.h>
#include <MFRC522.h>
//#include <ArduinoJson.h>
//#include <SoftwareSerial.h>
 
#define SS_PIN 10
#define RST_PIN 9

#define clocks 7
 
MFRC522 rfid(SS_PIN, RST_PIN);
 

byte nuidPICC[4];
byte nuidPICC2[4];
unsigned char RX1_BUF[50];

unsigned char RX3_BUF[10];

uint8_t count_i=0;
uint8_t tag=0;

int idsnum = 4;

//uint32_t nuidPICC2=0;

//int numwei = 32;
//unsigned char names[100]={'a',"lbw"};
//unsigned char names[100]={"zbw","lbw"};
//unsigned char *cnames=names[0];
unsigned char names[30][10] = {"zbw",0};
unsigned char names2[30][10] = {"zbw",0};
unsigned char ids[50]={0x13,0xA5,0x5D,0x04};
unsigned char password1[30][20]={"zbw3366",0};
unsigned char admin[2][5]={"yyds",0};
int names_nums = 0;

void card_read();
void password_read();
void password_regit();
void printHex(byte *buffer, byte bufferSize);

void setup()
{
   Serial.begin(115200);
   SPI.begin();
  rfid.PCD_Init();
  pinMode(clocks, OUTPUT);

}

void loop(){

 while (Serial.available())
  {
    RX1_BUF[count_i]=Serial.read();
    Serial.println(RX1_BUF[count_i]);
    count_i++;
    }
    //memcpy(RX2_BUF,RX1_BUF,count_i);
    
    if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 1))
  {
    Serial.println();
    Serial.println("button");
    for(tag=0;tag<RX1_BUF[6]-1;tag++)
        {
          RX3_BUF[tag]=RX1_BUF[tag+7];
        }
    }
    memset(RX1_BUF,0,count_i);
    

    if(((strcmp("card2",(const char *)RX3_BUF))==0)){
    memset(RX3_BUF,0,count_i);
    count_i=0;
    card_read((const char*)*names2, 100, 10);
    }
    else if(((strcmp("password2",(const char *)RX3_BUF))==0)){
    memset(RX3_BUF,0,count_i);
    count_i=0;
    Serial.println(count_i);
    password_read((const char*)*names, 100, 10, (const char*)*password1, 100, 20);
    }
    else if(((strcmp("password1",(const char *)RX3_BUF))==0)){
    memset(RX3_BUF,0,count_i);
    count_i=0;
    Serial.println(count_i);
    password_regit((const char*)*admin, 2, 2, *names);
    }
    else if(((strcmp("card1",(const char *)RX3_BUF))==0)){
    memset(RX3_BUF,0,count_i);
    count_i=0;
    Serial.println(count_i);
    card_regit((const char*)*admin, 2, 2);
    }
    count_i=0;
}

void card_read(char *namess, int n, int m){
  Serial.println("card_read");
  count_i=0;

  while(1){

    while (Serial.available())
  {
    RX1_BUF[count_i]=Serial.read();
    Serial.println(RX1_BUF[count_i]);
    count_i++;
    }
    if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 1))
  {
    Serial.println();
    Serial.println("button");
    for(tag=0;tag<RX1_BUF[6]-1;tag++)
        {
          RX3_BUF[tag]=RX1_BUF[tag+7];
        }
    }
    memset(RX1_BUF,0,count_i);
    count_i=0;

    if(((strcmp("back3",(const char *)RX3_BUF))==0)){
    Serial.println("back_home");
    return;
    }

 
  if ( ! rfid.PICC_IsNewCardPresent())
    continue;
 
 
  if ( ! rfid.PICC_ReadCardSerial())
    continue;
 
  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) {
    Serial.println("not support");
    continue;
  }
 
 
  for (byte i = 0,nuidPICC2 = 0,numwei = 32; i < 4; i++) {
    //Serial.println(rfid.uid.uidByte[i]);
    nuidPICC[i] = rfid.uid.uidByte[i];
    Serial.println(nuidPICC[i],HEX);
    //nuidPICC2 = rfid.uid.uidByte[i];
    //nuidPICC2 = nuidPICC2 << (numwei-8);
  }

  Serial.println();

  Serial.println(&(*(namess+1*10)));

 
  rfid.PICC_HaltA();
 
 
  rfid.PCD_StopCrypto1();
  for (int id_num = 0;id_num < 100; id_num++){
  if ((nuidPICC[0] == ids[id_num])&&(nuidPICC[1] == ids[id_num+1])&&(nuidPICC[2] == ids[id_num+2])&&(nuidPICC[3] == ids[id_num+3]))
  {
    //cnames = names[id_num];
    if(((strcmp("",&(*(namess+(id_num/4)*10))))==0))break;
    //if(&(*(namess+(id_num/4)*10)) == "")break;
    Serial.print(id_num);
    Serial.print("UID：");
    Serial.print(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardname1\",\"text\":\""));
    //for(int id_nums = 0;id_nums < 10;id_nums++)
    //{
   // Serial.print(&(*(namess + id_num + id_nums - 1)));
    //Serial.print(&(*(namess + id_num + id_nums - 1)));
    //}
    Serial.print(&(*(namess + (id_num/4)*10 )));
    Serial.print(F("\"}>ET"));
    printHex(rfid.uid.uidByte, rfid.uid.size);
    digitalWrite(clocks, HIGH);
    Serial.println(F("ST<{\"cmd_code\":\"set_visible\",\"type\":\"widget\",\"widget\":\"gif4\",\"visible\":true}>ET"));
    delay(3000);
    digitalWrite(clocks, LOW);
    Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardid1\",\"text\":\"\"}>ET"));
    Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardname1\",\"text\":\"\"}>ET"));
    Serial.println(F("ST<{\"cmd_code\":\"set_visible\",\"type\":\"widget\",\"widget\":\"gif4\",\"visible\":false}>ET"));
    //nuidPICC2 = 0;
    break;
  }
  //nuidPICC2 = 0;
  }
}
}

void printHex(byte *buffer, byte bufferSize) {
  Serial.println();
  Serial.print(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardid1\",\"text\":\""));
  for (byte i = 0; i < bufferSize; i++) {
    Serial.print(buffer[i] < 0x10 ? "0" : "");
    Serial.print(buffer[i], HEX);
  }
  Serial.print(F("\"}>ET"));
}

void password_read(char *namess, int n, int m, char *passwords, int o, int p){
 
//  unsigned char RX4_BUF[10] = {0};
  unsigned char RX5_BUF[20] = {0};
//  unsigned char RX6_BUF[20] = {0};
  int name_true = 0;
  int password_true = 0;
  int i, j;
  int name_s = 0;
  Serial.println("password_read");
 

  while(1){

    while (Serial.available())
  {
    RX1_BUF[count_i]=Serial.read();
    Serial.println(RX1_BUF[count_i]);
    count_i++;
    }
    if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 1))
  {
    Serial.println();
    Serial.println("button");
    for(tag=0;tag<RX1_BUF[6]-1;tag++)
        {
          RX3_BUF[tag]=RX1_BUF[tag+7];
        }
        RX3_BUF[tag] = NULL;
        RX3_BUF[tag+1] = NULL;
        RX3_BUF[tag+2] = NULL;
    //Serial.println(((const char *)RX3_BUF));
    }
    else if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 112))
  {
    Serial.println();
    Serial.println("edit");
    for(name_s = 0; name_s < RX1_BUF[6]-8; name_s++)
    {
      RX5_BUF[name_s] = RX1_BUF[name_s+15];
    }
        RX5_BUF[name_s] = NULL;
        RX5_BUF[name_s+1] = NULL;
        RX5_BUF[name_s+2] = NULL;
    
        Serial.println(((const char *)RX5_BUF));
        if (RX1_BUF[12]==53){
    for (i=0;i<100;i++){
      for (j=0;j<10;j++){
        if (strcmp(&(*(namess + i*10 )),(const char*)RX5_BUF)==0)
        {name_true = 1;
        break;
        }
      }
      if(name_true == 1)break;
    }
        }

        else if (RX1_BUF[12]==54){
          for (;i<100;i++){
      for (j=0;j<20;j++){
        if (strcmp(&(*(passwords + i*20 )),(const char*)RX5_BUF)==0)
        {password_true = 1;
        break;
        }
      }
      if(name_true == 1)break;
    }
        }
    Serial.println(name_true);
    Serial.println(password_true);
    Serial.println(&(*(namess + 1*10 )));
    Serial.println(&(*(passwords + 1*20 )));
    if ((name_true == 1)&&(password_true == 1)){
    digitalWrite(clocks, HIGH);
    Serial.println(F("ST<{\"cmd_code\":\"set_visible\",\"type\":\"widget\",\"widget\":\"lock2\",\"visible\":true}>ET"));
    delay(3000);
    digitalWrite(clocks, LOW);
    Serial.println(F("ST<{\"cmd_code\":\"set_visible\",\"type\":\"widget\",\"widget\":\"lock2\",\"visible\":false}>ET"));
    Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"edit\",\"widget\":\"edit5\",\"text\":\"\"}>ET"));
    Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"edit\",\"widget\":\"edit6\",\"text\":\"\"}>ET"));
    name_true = password_true = 0;
    }
    }
    memset(RX1_BUF,0,count_i);
    count_i=0;

    if(((strcmp("back4",(const char *)RX3_BUF))==0)){
    Serial.println("back_home");
    return;


void password_regit(char *admins, int w, int e,char *namess){

  unsigned char RX6_BUF[20] = {0};
  unsigned char rname_BUF[10] = {0};
  unsigned char rpass_BUF[20] = {0};
//  unsigned char RX6_BUF[20] = {0};
  int name1_true = 0;
  int password1_true = 0;
  int admin1_true = 0;
  int name_s;
  //int n, p;
  Serial.println("password_regit");
 

  while(1){

    while (Serial.available())
  {
    RX1_BUF[count_i]=Serial.read();
    Serial.println(RX1_BUF[count_i]);
    count_i++;
    }
    if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 1))
  {
    Serial.println();
    Serial.println("button");
    for(tag=0;tag<RX1_BUF[6]-1;tag++)
        {
          RX3_BUF[tag]=RX1_BUF[tag+7];
        }
        RX3_BUF[tag] = NULL;
        RX3_BUF[tag+1] = NULL;
        RX3_BUF[tag+2] = NULL;
    }
    else if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 112))
  {
    Serial.println();
    Serial.println("edit");
    for(name_s = 0; name_s < RX1_BUF[6]-8; name_s++)
    {
      RX6_BUF[name_s] = RX1_BUF[name_s+15];
    }
    
        Serial.println(((const char *)RX6_BUF));
        if (RX1_BUF[12]==51)
        {
          memcpy(rname_BUF,RX6_BUF,name_s);
          name1_true = 1;
          rname_BUF[name_s] = NULL;
          rname_BUF[name_s+1] = NULL;
          rname_BUF[name_s+2] = NULL;
        }
        else if (RX1_BUF[12]==52)
        {
          memcpy(rpass_BUF,RX6_BUF,name_s);
          password1_true = 1;
          rpass_BUF[name_s] = NULL;
          rpass_BUF[name_s+1] = NULL;
          rpass_BUF[name_s+2] = NULL;
        }
        else if (RX1_BUF[12]==55)
        {
          if (strcmp(&(*(admins)),(const char*)RX6_BUF)==0)
          admin1_true = 1;
        }
        
        Serial.println(name1_true);
        Serial.println(password1_true);
        Serial.println(admin1_true);
//        Serial.println(&(*(admins)));
        Serial.println((const char*)rname_BUF);
        Serial.println((const char*)rpass_BUF);

        if ((name1_true == 1)&&(password1_true == 1)&&(admin1_true == 1))
        {
          names_nums++;

          strncpy(&(names[names_nums][0]), &rname_BUF[0], strlen(rname_BUF));
          strncpy(&(password1[names_nums][0]), &rpass_BUF[0], strlen(rpass_BUF));

          name1_true = password1_true = admin1_true = 0;
        }

    
 
}
    memset(RX1_BUF,0,count_i);
    count_i=0;
    if(((strcmp("back2",(const char *)RX3_BUF))==0)){
    Serial.println("back_home");
    return;
  }
}
}

void card_regit(char *admins, int w, int e){

  unsigned char RX7_BUF[20] = {0};
  unsigned char rname_BUF[10] = {0};
  unsigned char rpass_BUF[20] = {0};
  int name1_true = 0;
  int password1_true = 0;
  int admin1_true = 0;
  int name_s;
  int set_label = 0;
  Serial.println("card_regit");
 

  while(1){

    while (Serial.available())
  {
    RX1_BUF[count_i]=Serial.read();
    Serial.println(RX1_BUF[count_i]);
    count_i++;
    }
    if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 1))
  {
    Serial.println();
    Serial.println("button");
    for(tag=0;tag<RX1_BUF[6]-1;tag++)
        {
          RX3_BUF[tag]=RX1_BUF[tag+7];
        }
        RX3_BUF[tag] = NULL;
        RX3_BUF[tag+1] = NULL;
        RX3_BUF[tag+2] = NULL;
    //Serial.println(((const char *)RX3_BUF));
    }
    else if ((RX1_BUF[3] == 16)&&(RX1_BUF[4] == 112))
  {
    Serial.println();
    Serial.println("edit");
    for(name_s = 0; name_s < RX1_BUF[6]-8; name_s++)
    {
      RX7_BUF[name_s] = RX1_BUF[name_s+15];
    }
    
        Serial.println(((const char *)RX7_BUF));
        if (RX1_BUF[12]==49)
        {
          memcpy(rname_BUF,RX7_BUF,name_s);
          name1_true = 1;
          rname_BUF[name_s] = NULL;
          rname_BUF[name_s+1] = NULL;
          rname_BUF[name_s+2] = NULL;
        }
        else if (RX1_BUF[12]==50)
        {
          if (strcmp(&(*(admins)),(const char*)RX7_BUF)==0)
          admin1_true = 1;
        }
        
        Serial.println(name1_true);
        Serial.println(admin1_true);
        Serial.println(&(*(admins)));

        

    
 
}

    memset(RX1_BUF,0,count_i);
    count_i=0;
    if(((strcmp("back1",(const char *)RX3_BUF))==0)){
    Serial.println("back_home");
    return;
  }
if ((name1_true == 1)&&(admin1_true == 1))
        {
          
          if (set_label == 0)Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardid\",\"text\":\"please place card!\"}>ET"));
          set_label = 1;
          if ( ! rfid.PICC_IsNewCardPresent())
    continue;
 
 
  if ( ! rfid.PICC_ReadCardSerial())
    continue;
 
  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) {
    Serial.println("not support");
    continue;
  }
 
 
  for (byte i = 0,nuidPICC2 = 0,numwei = 32; i < 4; i++,idsnum++) {
    nuidPICC[i] = rfid.uid.uidByte[i];
    ids[idsnum] = nuidPICC[i];
    Serial.println(ids[idsnum],HEX);
  }
  strncpy(&(names2[1][0]), &rname_BUF[0], strlen(rname_BUF));
  Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardid\",\"text\":\"regit ok!\"}>ET"));
  delay(2000);
  Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"label\",\"widget\":\"cardid\",\"text\":\"\"}>ET"));
  Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"edit\",\"widget\":\"edit1\",\"text\":\"\"}>ET"));
    Serial.println(F("ST<{\"cmd_code\":\"set_text\",\"type\":\"edit\",\"widget\":\"edit2\",\"text\":\"\"}>ET"));
 
 
  rfid.PICC_HaltA();
  rfid.PCD_StopCrypto1();

        }

    
}
}
Video demo

 
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