Introduction: Programmable Security Lock Using Arduino
Arduino based programmable security lock for locking electronic appliances. The appliance can be unlocked only if the correct password is fed.
- The numeric password can be of any length of our choice ( max.length 15).
- Password programmable by SMS from a unique authorised number.
- SMS Commands, Alerts , Maximum 3 wrong attempts , Emergency freeze mode for increased security.
- Developer : Mitu Raj
Step 1: Components Required
1) Arduino UNO
2) SIM 900A GSM module
3) 4x4 matrix keypad
4) 5V Relay Module
5) 16x2 LCD display
Step 2: Circuit Connection
1) 4x4 Keypad pins 1-8 are connected to D2-D9 pins of Arduino. If you get incorrect response from the keypad , it maybe because you connected it in the reverse order. Take a note of this.
2) SIM 900A GSM module's RX and TX are connected to D11, D10 respectively. We use these pins as software serial . GND of GSM is connected to Arduino GND .
3) Use 9V 2A adapter as power supply to GSM module. 2A is preferred over 1A rated adapter. The same may be used to power the Arduino too. Your wish.
4) The 5V relay module is connected to D12 pin. and "Busy" status LED . Choose the relay wisely ( generally capable to switch 24V DC/ 240V AC 5A rating).
5) Interface the LCD display as in the circuit diagram shown.
You are ready to GO !!!
Note : The Led in 13th pin is connected in reverse manner in the circuit diagram . please connect the positive of the Led to the Vcc of the arduino , and the negative to D13 via the resistor . Also connect the analog pins to LCD in the reverse order to that in the circuit diagram .
Note : The phone number is 12 digits length total in my code, including country code...If it differs, change accordingly in the code after understanding the code.
Step 3: Notes
Implement individual Keypad test , GSM test and testbench in Arduino before you proceed to the complete circuit implementation ( go through guidelines too in main code folder ). The necessary files and instructions have been attached with this. Also make sure that your Arduino IDE contains keypad.h , softwareserial.h libraries.
link to my paper :
http://www.iject.org/vol8/issue1/9-mitu-raj
For any queries please contact me @iammituraj@gmail.com
Thank You !
Mitu Raj
India
mail : iammituraj@gmail.com
Step 4:
1 Person Made This Project!
- ryasey made it!
18 Discussions
5 weeks ago
Please can I have the password for the rar file.
judahben149@gmail.com
3 months ago
kindly share the password for rar file
aqilsadiq@gmail.com
Reply 8 weeks ago
done
2 months ago
Hi. I want to get rar file password please.
lontsi.belario9999@gmail.com
Reply 8 weeks ago
doen bro
9 months ago
I want to get rar file password please.
merg18@gmail.com
1 year ago
I want to get rar file password please
1 year ago
can i have code
Reply 1 year ago
hope u got it
1 year ago
pin please
1 year ago
CAN I HAVE CODE PLS
3 years ago
Can i have the code?
Reply 3 years ago
please contact in mail
4 years ago
CAN I HAVE THE CODE
Reply 4 years ago
please find it in the Attached RAR file
4 years ago
Sim 800 L GSM Module will do it ?
Reply 4 years ago
yea it gotta work ! :)
4 years ago
u are welCome :)