Simple Project: Electronic Password Locker without Arduino !

** Simple Project: Electronic Password Locker without Arduino ! **
Welcome to this exciting DIY electronics project video, "Simple Project: Electronic Password Locker without Arduino!" In this tutorial, I will be assembling a simple electronic password lock kit circuit available on Robu.in.(link given below) I will walk you through the entire process of soldering all the components using a soldering iron and hot air 858D, and then demonstrate how to integrate a 12V DC locker with a 3-5V DC relay.
Components Used:
1) Electronic password lock kit circuit from Robu.in-
robu.in/produc...
2) Soldering Iron,
3) Hot Air 858D,
4) 12V DC Locker,
5) 3-5V DC Relay,
6) Strip connectors (Male and Female).
Introduction to the electronic password lock kit circuit from Robu.in.
Soldering the components onto the PCB using a soldering iron.
Fine-tuning the connections using a hot air 858D.
Integration of the 12V DC locker with a 3-5V DC relay for the password locking mechanism.
Testing and demonstration of the electronic password locker system.
Tips and Considerations:
Ensure precise soldering for a secure and functional circuit.
Verify the connections carefully to avoid any shorts or loose connections.
Use appropriate safety measures while working with electronic components and tools.
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Hashtags:
#ElectronicsDIY
#PasswordLocker
#DIYElectronics
#RobuKit
#SolderingProject

[@2005Smriti]

Could you please explain how the circuit works?

[@byhobby]

This circuit contains three ICs (U1,U2=CD4013 x 2 and U3=CD4011), resistors, capacitors, LEDs, and push switches for creating an electronic password lock. IC U1 (CD4013): This is a dual D flip-flop IC. It is likely used to store and control the password. We configure the D flip-flops in ICs U1 and U2 to store the correct password. The D flip-flops can store binary data (0 or 1).
IC U3 (CD4011): This is a quad 2-input NAND gate IC. It could be used for logic operations in the password verification process. When a user wants to unlock the device, they will press the push buttons (S0-S9) in a specific sequence that represents the binary code of the password. IC U3 (CD4011) likely serves as the logic gate to compare the user's input (push button presses) with the stored password. The exact logic operations will depend on the design of the circuit. Here this circuit uses a fix password as per the PCB design, but we can change the password by changing the circuit layout little bit. There is an RED LED that indicates the either the circuit is locked or unlocked. Hope some idea you got. Thanks for this important comment !!

[@AmitSharma-qz8nm]

Ye badhiya tha guru👍

[@byhobby]

Thanks Bhai ❤️️❤️️

[@gautamjangid9587]

👍👍