OTP Based Door Lock Using Arduino And SIM800L

In this video, we will guide you through the process of creating an OTP (One-Time Password) based door lock system using Arduino and various components like I2C 16x2 LCD, relay, 4x4 keypad, and GSM SIM800L module. The system will enhance the security of your doors by requiring a unique password each time someone wants to gain access.
Code And Circuit Diagram:- justdoelectronics.com/otp-bas...
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[@JustDoElectronics]

Code And Circuit Diagram :-
www.prateeks.in/2022/01/otp-based-door-lock-using-arduino-and.html

[@Rayhan_Ahmed.]

Nice project sir❤️
Love from Bangladesh 🇧🇩🇧🇩🇧🇩🇧🇩

[@Drxxx]

My favourite is fingerprint lock :D

[@BharathKumar-qf9pp]

Sir nice project can you provide components list

[@abdulrozaq7589]

can you tell me how to change IR to RFID and also the code and circuit drawing

[@rebalfaisal6359]

brooo i need your help in my next project i also make a door lock system using fingerprint sensor but i wanna modefy my project by using some sensor so i need your help urgently

[@saisrinivas1027]

GOOD

[@saisrinivas1027]

Sir can we use a bluetooth module instead of a GSM module for this project ?

[@wallinslax]

Is the otp code generates by lock or by cloud server? Typically, the lock is offline and no way to send SMS.

[@harshithchowdaryiitkgpcs3354]

Sir could you please share the circuit design as a file from designing software it is available as a png file so we couldn't access any of its components, it would be good if you share the design file from the software and also please share the name of the Software which you used for this design.

[@kushalraj135]

sir,when can we add 5 mobile number in program, it will work?

[@RAHULRAMACHANDRAN-wn9kv]

sir, can i have the component list including model name

[@user-by9ne4tx2p]

The exact name and model of the component are required.

[@raikju2494]

please change voice/musik volume = 50/50 to voice/musik volume = 70/30

[@mayurgovind5867]

Hello sir used to PC software

[@user-fv7us6rm1i]

hiii sir i need some help of you
in our college we have to do some project like a smart lock with otp and motion detection can you help us

[@JustDoElectronics]

Mail me

[@user-xm6rc5xt6s]

Sir can we use 12v 1amp instead of 12v 2 amp..?

[@JustDoElectronics]

Yes

[@piyushkapse2743]

How to insert code in hardware

[@saisrinivas1027]

Sir can we use a bluetooth module instead of a GSM module for this project ?

[@JustDoElectronics]

Used it no issues

[@HaHa-uc3gu]

for gsm sim800l，it must need a sim card？

[@JustDoElectronics]

yes

[@laxmigautam6958]

sir circuit diagram clear kar dijiye please

[@user-zu2hk8zi2p]

green or red led kaise lagaya

[@aryansurve6196]

Sir I am making this as a project so first I have buy all the components and now I have made all the connection as per circuit diagram and insert the code in Aurdino with no error
But sir GSM Model is not blinking as ??
What to do sir

[@JustDoElectronics]

Yes you can

[@aryansurve6196]

Sir how can we contact you as clear our doubt

[@saravanan5033]

I need components exact name and model

[@laxmigautam6958]

sir isme apne step down module ka use nhi kiya h

[@mahalakshmi.pmahalakshmi.p9450]

Sir while programing the error is...
Class liquidcrysral I2c has no member named init...
What is the error sir..?

[@JustDoElectronics]

Used another library 📚

[@saisrinivas1027]

SIR we are getting a problem in compiling the code.. It says the liquid crystal I2c has no file or directory.. Could you please guide us

[@JustDoElectronics]

Install i2c library

[@aryansurve6196]

Sir can you plz guide us

[@JustDoElectronics]

yes

[@AmazingUniversethebest]

Bro, How much cost it takes to completely do this project?

[@JustDoElectronics]

Not much

[@AmazingUniversethebest]

@@JustDoElectronics approximately range?

[@ankitjain-bv3pd]

Kindly provide circuit diagram and code sir

[@JustDoElectronics]

www.prateeks.in/2022/01/otp-based-door-lock-using-arduino-and.html

[@atikpathan9693]

How to replace IR sensor with switch

[@JustDoElectronics]

Disconnect it

[@atikpathan9693]

@@JustDoElectronics will code remain same or any change?

[@JustDoElectronics]

@atikpathan9693 changes

[@manishumarvaishya9508]

otp is not sending to the phone

[@blackboardeducation8662]

Keypad lock khol sakta hai to MSG karna mere pass

[@theexperimentlab7887]

Sir code plz 🙏

[@JustDoElectronics]

www.prateeks.in/2022/01/otp-based-door-lock-using-arduino-and.html

[@worshaw]

@@JustDoElectronics could I modify the code to be otp but not send the code, for like a prize locker. Random code lucky person enters the correct one wins. Not that there will be a prize in what I’m planning, I just want to see if I can make a puzzle box and irritate my co workers.