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RFID Based Door Lock (EM-18)
Just Do Electronics
April 17, 2020
RFID Based Door Lock
CIRCUIT DIAGRAM :-
CODE :-
//Prateek //www.prateeks.in #define RELAYPIN 2 #define WARNLEDPIN 2 char tag[] ="4000350ABAC5"; char input[12]; int count = 0; boolean flag = 0; void setup() { Serial.begin(9600); pinMode(RELAYPIN,OUTPUT); pinMode(WARNLEDPIN,OUTPUT); } void loop() { if(Serial.available()) { count = 0; while(Serial.available() && count < 12) { input[count] = Serial.read(); count++; delay(5); } if(count == 12) { count =0; flag = 1; while(count<12 && flag !=0) { if(input[count]==tag[count]) flag = 1; else flag= 0; count++; } } if(flag == 1) { Serial.println("Access Allowed!"); digitalWrite(RELAYPIN,HIGH); delay (5000); digitalWrite (RELAYPIN,LOW); } else { Serial.println("Access Denied"); digitalWrite(WARNLEDPIN,HIGH); delay(5000); digitalWrite(WARNLEDPIN,LOW); } for(count=0; count<12; count++) { input[count]= 'F'; } count = 0; } }
PHOTO :-
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