Control de acceso RFID loop principal

Flowchart nodes

• Start Main Loop

• any key was pressed?

• Some TAG was presented?

• TAG presented is TAG MASTER ?

• PROGRAMMING MODE

• key pressed is "#" ?

• Read TAG number n of the eeprom

• TAG presented== TAG read from the eeprom

• number of TAGs read ​​​​​​++

• LCD: enter password

• any key was pressed?

• key pressed is "#" ?

• concatenate keys pressed to form key

• LCD: enter password keys pressed

• key pressed is "*" ?

• number of TAGs read > number of stored TAGs?

• Access Denied

• LCD: Access Denied

• access granted open chosen exit

• LCD: access granted

• Read byte [4] of the TAG number read from the eeprom to obtain the relays allowed by this TAG

• LCD: enter door to open 1   2   3   4  

• any key was pressed?

• key pressed equals allowed output?

• number of password  TAGs read ​​​​​​++

•  password read > number of stored password  TAGs?

• Read password of each TAG number n of the eeprom

• password read = password TAG read from the eeprom

• Access Denied

• LCD: Access Denied

• password read = master password 

• Read byte [4] of the TAG number associated with the key entered from the eeprom to get the relays allowed by this TAG