Digital Code Lock using Arduino and User Defined Password

Today the need for high effective personal belongings security is growing more essential by the day and it is vital to know how to keep your valuables safeguarded. In almost every sector, both professionals and regular people are finding that they are vulnerable to various types of security breach and loss of personal valuables.These lack of security measures have not only proved to be expensive but almost very embarrassing.Embedded microcontroller boards like Arduino is increasingly getting more popular these days as it catches on among electrical engineers. Arduino can help electrical engineers to provide affordable solutions mitigating such security risks, so we decided to design and implement a door lock system allowing a user to use a keypad code or access the system via bluetooth from an Android smartphone to unlock the door.