Week 7 - Circuit Assembly.

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    For this week, I assembled all the components together to form a complete circuit for the project. The circuit connections are the same as when testing the components. Except for the GSM, because pin D9 and D10 is occupied by the RFID, the 5VT pin is placed in the D5 pin and the 5VR is placed in the D6 pin of the Arduino. For the power supply, as the  LCD and GSM require 5V of power supply and the Arduino Uno only has one 5V supply, I placed the voltage supply of the LCD to the Vin pin on the Arduino. 

    After assembling the circuits, I combined the program codes in Arduino Uno so that if an unauthorized RFID card is placed on the RFID reader, the GSM will send an SMS notification to my phone. After uploading the program code into the Arduino Uno, I tried placing an authorized RFID card on the RFID reader. The LCD displayed "Authorized Access" and the solenoid lock opened. Then I placed an unauthorized RFID card on the RFID reader. The LCD displayed "Access Denied" and the solenoid door remained locked. The GSM then send an SMS written "Intruder Alert" to alert the user.




 


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