Kuidas teha RFID-põhist osavõtusüsteemi

Kuidas teha RFID-põhist osavõtusüsteemi

Selles postituses ehitame raadiosagedustuvastusel põhineva osalemissüsteemi, mis suudab registreerida 12 õpilase / personali osavõtu antud ajaakna kohta ja see süsteem võib registreerida kuni 255 külastust inimese kohta.



Mis on RFID-osalemissüsteem

Me ei vaja RFID-põhise osalemissüsteemi tutvustamist, seda kasutatakse kolledžites, kontorites, raamatukogudes, et teada saada, mitu korda on inimene või mitu inimest mingil ajal sisse ja välja tulnud.

Selles projektis ehitame lihtsaima RFID-põhise osalemissüsteemi, mis ei raskenda projekti.





Selles projektis kasutame RTC moodulit, mida kasutatakse osavõtusüsteemi lubamiseks ja keelamiseks etteantud ajaperioodi jooksul, et saaksime hiliseid tulijaid eemal hoida.

RFID-moodul “RFID-RC522”, mis võimaldab NXP-põhistel RFID-siltidel lugeda ja kirjutada. NXP on juhtiv RFID-siltide tootja maailmas ja me saame neid hõlpsasti veebi- ja võrguühenduseta kauplustest hankida.



Kasutatakse 16 x 2 LCD-ekraani, mis näitab teavet, näiteks kellaaega, kuupäeva, kohalviibimise arvu jne.

Ja lõpuks kasutatakse Arduino plaati, mis on projekti aju . Võite valida mis tahes tahvli versiooni.

Nüüd liigume skemaatiliste diagrammide juurde:

Arduino ja LCD ekraani ühendus:

Lihtsalt ühendage juhtmestik vastavalt alltoodud skeemile ja kasutage kontrasti reguleerimiseks 10 kilo oomi potentsiomeetrit.

Arduino ja RFID mooduli ühendus:

RFID-moodul peab olema toiteallikas 3,3 V ja 5 V võib kahjustada parda komponente. RFID-RC522 moodul töötab Arduinoga suhtlemisel SPI-sideprotokollil.

Ülejäänud ringkond:

Arduino toiteallikaks on 9V seinaadapter. Kaardi tuvastamise kohta annavad märku summer ja LED. Kohaloleku vaatamiseks, mälu tühjendamiseks ning “jah” ja “ei” on ette nähtud 4 nuppu.

See lõpetab riistvara osa.

Laadige alla järgmised teegi failid:

Link1: github.com/PaulStoffregen/DS1307RTC

Link2: github.com/PaulStoffregen/Time

Link3: github.com/miguelbalboa/rfid.git

Nüüd peame selle jaoks määrama RTC moodulile õige aja, järgige alltoodud samme koos riistvara lõpuleviimisega.

  • Avage Arduino IDE.
  • Navigeerige jaotisse Fail> Näited> DS1307RTC> SetTime.
  • Laadige kood üles.

Kui kood on Arduinosse üles laaditud, avage jadamonitor . Nüüd sünkroniseeritakse RTC teie arvuti ajaga.

Nüüd peate leidma kõigi 12 RFID-kaardi / sildi UID või unikaalse identifitseerimisnumbri. UID leidmiseks laadige üles allolev kood ja avage jademonitor.

//-------------------------Program developed by R.Girish------------------//
#include
#include
#define SS_PIN 10
#define RST_PIN 9
MFRC522 rfid(SS_PIN, RST_PIN)
MFRC522::MIFARE_Key key
void setup()
{
Serial.begin(9600)
SPI.begin()
rfid.PCD_Init()
}
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)
{
Serial.println(F('Your tag is not of type MIFARE Classic, your card/tag can't be read :('))
return
}
String StrID = ''
for (byte i = 0 i <4 i ++)
{
StrID +=
(rfid.uid.uidByte[i] <0x10 ? '0' : '') +
String(rfid.uid.uidByte[i], HEX) +
(i != 3 ? ':' : '' )
}
StrID.toUpperCase()
Serial.print('Your card's UID: ')
Serial.println(StrID)
rfid.PICC_HaltA ()
rfid.PCD_StopCrypto1 ()
}
//-------------------------Program developed by R.Girish------------------//

  • Avage seeriamonitor.
  • Skaneerige kaart / silt RFID-moodulilt.
  • Nüüd näete iga kaardi jaoks mõnda kuueteistkümnendkoha koodi.
  • Kirjutage see üles, sisestame need andmed järgmisse programmi.

Põhiprogramm:

//-------------------------Program developed by R.Girish------------------//
#include
#include
#include
#include
#include
#include
#include
#define SS_PIN 10
#define RST_PIN 9
MFRC522 rfid(SS_PIN, RST_PIN)
MFRC522::MIFARE_Key key
const int rs = 7
const int en = 6
const int d4 = 5
const int d5 = 4
const int d6 = 3
const int d7 = 2
const int LED = 8
boolean ok = false
LiquidCrystal lcd(rs, en, d4, d5, d6, d7)
const int list = A0
const int CLM = A1
const int yes = A2
const int no = A3
int H = 0
int M = 0
int S = 0
int i = 0
int ID1 = 0
int ID2 = 0
int ID3 = 0
int ID4 = 0
int ID5 = 0
int ID6 = 0
int ID7 = 0
int ID8 = 0
int ID9 = 0
int ID10 = 0
int ID11 = 0
int ID12 = 0
char UID[] = ''
// **************************** SETTINGS ************************ //
// ------ From -------- // (Set the time range for attendance in hours 0 to 23)
int h = 21 // Hrs
int m = 00 // Min
// ------- To ------- //
int h1 = 21 // Hrs
int m1 = 50 //Min
// ---------------- SET UIDs ----------------- //
char UID1[] = 'F6:97:ED:70'
char UID2[] = '45:B8:AF:C0'
char UID3[] = '15:9F:A5:C0'
char UID4[] = 'C5:E4:AD:C0'
char UID5[] = '65:1D:AF:C0'
char UID6[] = '45:8A:AF:C0'
char UID7[] = '15:9F:A4:C0'
char UID8[] = '55:CB:AF:C0'
char UID9[] = '65:7D:AF:C0'
char UID10[] = '05:2C:AA:04'
char UID11[] = '55:7D:AA:04'
char UID12[] = 'BD:8A:16:0B'
// -------------- NAMES -----------------------//
char Name1[] = 'Student1'
char Name2[] = 'Student2'
char Name3[] = 'Student3'
char Name4[] = 'Student4'
char Name5[] = 'Student5'
char Name6[] = 'Student6'
char Name7[] = 'Student7'
char Name8[] = 'Student8'
char Name9[] = 'Student9'
char Name10[] = 'Student10'
char Name11[] = 'Student11'
char Name12[] = 'Student12'
// ********************************************************** //
void setup()
{
Serial.begin(9600)
lcd.begin(16, 2)
SPI.begin()
rfid.PCD_Init()
pinMode(yes, INPUT)
pinMode(no, INPUT)
pinMode(list, INPUT)
pinMode(LED, OUTPUT)
pinMode(CLM, INPUT)
digitalWrite(CLM, HIGH)
digitalWrite(LED, LOW)
digitalWrite(yes, HIGH)
digitalWrite(no, HIGH)
digitalWrite(list, HIGH)
}
void loop()
{
if (digitalRead(list) == LOW)
{
Read_data()
}
if (digitalRead(CLM) == LOW)
{
clear_Memory()
}
tmElements_t tm
if (RTC.read(tm))
{
lcd.clear()
H = tm.Hour
M = tm.Minute
S = tm.Second
lcd.setCursor(0, 0)
lcd.print('TIME:')
lcd.print(tm.Hour)
lcd.print(':')
lcd.print(tm.Minute)
lcd.print(':')
lcd.print(tm.Second)
lcd.setCursor(0, 1)
lcd.print('DATE:')
lcd.print(tm.Day)
lcd.print('/')
lcd.print(tm.Month)
lcd.print('/')
lcd.print(tmYearToCalendar(tm.Year))
delay(1000)
} else {
if (RTC.chipPresent())
{
lcd.setCursor(0, 0)
lcd.print('RTC stopped!!!')
lcd.setCursor(0, 1)
lcd.print('Run SetTime code')
} else {
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Read error!')
lcd.setCursor(0, 1)
lcd.print('Check circuitry!')
}
}
if (H == h)
{
if (M == m)
{
ok = true
}
}
if (H == h1)
{
if (M == m1)
{
ok = false
}
}
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)
{
Serial.println(F('Your tag is not of type MIFARE Classic, your card/tag can't be read :('))
}
String StrID = ''
for (byte i = 0 i <4 i ++)
{
StrID +=
(rfid.uid.uidByte[i] <0x10 ? '0' : '') +
String(rfid.uid.uidByte[i], HEX) +
(i != 3 ? ':' : '' )
}
StrID.toUpperCase()
if (ok == false)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Attendance is')
lcd.setCursor(0, 1)
lcd.print('Closed.')
delay(1000)
}
if (ok)
{
//-----------------------------------//
if (StrID == UID1)
{
ID1 = EEPROM.read(1)
ID1 = ID1 + 1
if (ID1 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID1 != 256)
{
EEPROM.write(1, ID1)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID2)
{
ID2 = EEPROM.read(2)
ID2 = ID2 + 1
if (ID2 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID2 != 256)
{
EEPROM.write(2, ID2)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID3)
{
ID3 = EEPROM.read(3)
ID3 = ID3 + 1
if (ID3 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID3 != 256)
{
EEPROM.write(3, ID3)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID4)
{
ID4 = EEPROM.read(4)
ID4 = ID4 + 1
if (ID4 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID4 != 256)
{
EEPROM.write(4, ID4)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID5)
{
ID5 = EEPROM.read(5)
ID5 = ID5 + 1
if (ID5 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID5 != 256)
{
EEPROM.write(5, ID5)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID6)
{
ID6 = EEPROM.read(6)
ID6 = ID6 + 1
if (ID6 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID6 != 256)
{
EEPROM.write(6, ID6)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID7)
{
ID7 = EEPROM.read(7)
ID7 = ID7 + 1
if (ID7 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID7 != 256)
{
EEPROM.write(7, ID7)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID8)
{
ID8 = EEPROM.read(8)
ID8 = ID1 + 1
if (ID8 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID8 != 256)
{
EEPROM.write(8, ID8)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID9)
{
ID9 = EEPROM.read(9)
ID9 = ID9 + 1
if (ID9 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID9 != 256)
{
EEPROM.write(9, ID9)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID10)
{
ID10 = EEPROM.read(10)
ID10 = ID10 + 1
if (ID10 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID10 != 256)
{
EEPROM.write(10, ID10)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID11)
{
ID11 = EEPROM.read(11)
ID11 = ID11 + 1
if (ID11 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID11 != 256)
{
EEPROM.write(11, ID11)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
//-----------------------------------//
if (StrID == UID12)
{
ID12 = EEPROM.read(12)
ID12 = ID12 + 1
if (ID12 == 256)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Memory is Full')
lcd.setCursor(0, 1)
lcd.print('Please Clear All.')
for (i = 0 i <20 i++)
{
digitalWrite(LED, HIGH)
delay(100)
digitalWrite(LED, LOW)
delay(100)
}
i = 0
return
}
if (ID12 != 256)
{
EEPROM.write(12, ID12)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Your Attendance')
lcd.setCursor(0, 1)
lcd.print('Registered !!!')
digitalWrite(LED, HIGH)
delay(1000)
digitalWrite(LED, LOW)
return
}
}
if (StrID != UID1 || StrID != UID2 || StrID != UID3 || StrID != UID4
|| StrID != UID5 || StrID != UID6 || StrID != UID7 || StrID != UID8
|| StrID != UID9 || StrID != UID10 || StrID != UID11 || StrID != UID12)
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print('Unknown RFID')
lcd.setCursor(0, 1)
lcd.print('Card !!!')
for (i = 0 i <3 i++)
{
digitalWrite(LED, HIGH)
delay(200)
digitalWrite(LED, LOW)
delay(200)
}
}
rfid.PICC_HaltA ()
rfid.PCD_StopCrypto1()
}
}
void Read_data()
{
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name1)
lcd.print(':')
lcd.print(EEPROM.read(1))
lcd.setCursor(0, 1)
lcd.print(Name2)
lcd.print(':')
lcd.print(EEPROM.read(2))
delay(2000)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name3)
lcd.print(':')
lcd.print(EEPROM.read(3))
lcd.setCursor(0, 1)
lcd.print(Name4)
lcd.print(':')
lcd.print(EEPROM.read(4))
delay(2000)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name5)
lcd.print(':')
lcd.print(EEPROM.read(5))
lcd.setCursor(0, 1)
lcd.print(Name6)
lcd.print(':')
lcd.print(EEPROM.read(6))
delay(2000)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name7)
lcd.print(':')
lcd.print(EEPROM.read(7))
lcd.setCursor(0, 1)
lcd.print(Name8)
lcd.print(':')
lcd.print(EEPROM.read(8))
delay(2000)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name9)
lcd.print(':')
lcd.print(EEPROM.read(9))
lcd.setCursor(0, 1)
lcd.print(Name10)
lcd.print(':')
lcd.print(EEPROM.read(10))
delay(2000)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(Name11)
lcd.print(':')
lcd.print(EEPROM.read(11))
lcd.setCursor(0, 1)
lcd.print(Name12)
lcd.print(':')
lcd.print(EEPROM.read(12))
delay(2000)
}
void clear_Memory()
{
lcd.clear()
lcd.print(0, 0)
lcd.print(F('Clear All Data?'))
lcd.setCursor(0, 1)
lcd.print(F('Long press: Y/N'))
delay(2500)
Serial.print('YES')
if (digitalRead(yes) == LOW)
{
EEPROM.write(1, 0)
EEPROM.write(2, 0)
EEPROM.write(3, 0)
EEPROM.write(4, 0)
EEPROM.write(5, 0)
EEPROM.write(6, 0)
EEPROM.write(7, 0)
EEPROM.write(8, 0)
EEPROM.write(9, 0)
EEPROM.write(10, 0)
EEPROM.write(11, 0)
EEPROM.write(12, 0)
lcd.clear()
lcd.setCursor(0, 0)
lcd.print(F('All Data Cleared'))
lcd.setCursor(0, 1)
lcd.print(F('****************'))
delay(1500)
}
if (digitalRead(no) == LOW)
{
return
}
}
//-------------------------Program developed by R.Girish------------------//

// ---------------- Määra UID-d ----------------- //

char UID1 [] = 'F6: 97: ED: 70'

char UID2 [] = '45: B8: AF: C0 '

char UID3 [] = '15: 9F: A5: C0 '

char UID4 [] = 'C5: E4: AD: C0'

char UID5 [] = '65: 1D: AF: C0 '

char UID6 [] = '45: 8A: AF: C0 '

char UID7 [] = '15: 9F: A4: C0 '

char UID8 [] = '55: CB: AF: C0 '

char UID9 [] = '65: 7D: AF: C0 '

char UID10 [] = '05: 2C: AA: 04 '

char UID11 [] = '55: 7D: AA: 04 '

char UID12 [] = 'BD: 8A: 16: 0B'

// ---------------------------------------------- //

Teil on siin kohanimed:

// -------------- NIMED ----------------------- //

char Name1 [] = 'Õpilane1'

char Name2 [] = 'Õpilane2'

char Name3 [] = 'Õpilane3'

char Name4 [] = 'Õpilane4'

char Name5 [] = 'Õpilane5'

char Name6 [] = 'Tudeng6'

char Name7 [] = 'Tudeng7'

char Name8 [] = 'Tudeng8'

char Name9 [] = 'Tudeng9'

char Name10 [] = 'Õpilane10'

char Name11 [] = 'Õpilane11'

char Name12 [] = 'Tudeng12'

// -------------------------------------------- //

Asendage õpilane1, õpilane2 soovitud nimega või jätke see selliseks, nagu see on.

Peate määrama aja, millal osalemissüsteem peaks olema aktiivne. Ülejäänud aja ei registreeri süsteem kohalviibimist, kui skannime RFID-silti / kaarti:

// ------ Alates -------- //

int h = 21 // Tund

int m = 00 // Min

// ------- To ------- //

int h1 = 21 // Tund

int m1 = 50 // Min

// ------------------------- //

Ülemine osa on algusaeg ja alumine osa lõpuaeg. Peate sisestama aja tundides 0 kuni 23 ja minutites 00 kuni 59.

Autori prototüüp:

Kui teil on selle projektiga seotud küsimusi, võite seda kommentaaride jaotises vabalt väljendada, võite saada kiire vastuse.




Paari: Arduino automaatne kooli / kolledži kellasüsteem Järgmine: 3D Moon-Sphere LED-draiver koos laadija ja hämardava ahelaga