Electronic safety drawer / Muhsin Sales, Mohamad Afiz Ambotuo & Muhammad Hafizh Abdul Rahim

The project that we have built was from a motivation to improvise the existing electronic safe box. Besides, the motivation to learn the coding and programming of the Arduino to the servomotors, the numeric keypad, RGB LED and to the numeric keypad also boosted to design this project. In addition, to complete the diploma of electrical engineering also motivated us to pursue and finish the project. The objective of this project is to improvise the old model safety box available in the market which is very low on security level because the normal safe box uses key and the chances to lost the key is high. So this will be a problem for the owner to make sure the key is kept at a safe place. So the use of safety drawer is becoming less popular. Moreover, there are many breaking safety drawer cases nowadays because the old model safety drawer is too easy to be break. So the main purpose of this project is to increase the security of the safety drawer by using a servo lock mechanism which is better than the old lock, also it is a keyless safety drawer and this safety drawer allow multiple users unlike the old safe box. The method used in this project in electronically programmed by using the Arduino as the brain of this project. It is connected to the servomotors, the numeric keypad, the RGB LED and the LCD display. The programming of the arduino and the servomotors is used to lock or unlock the drawers depending on the correct or incorrect password inserted. If the password is correct, the servomotors will rotate 90 degrees and the drawer will be unlocked but if the wrong password is inserted, the servomotors will not rotate and the drawer is still lock. While the coding for the Arduino and the numeric keypad is to charge the row and column of the keypad to insert the password. Furthermore, the programming connecting the Arduino to the RGB LED was used to light up green (indicating the password is correct) or red (indicating the password is wrong). Besides, the programming for the Arduino and the LCD is to display the desired output on the LCD. For instance, if the correct password is inserted, the LCD will display "ACCESS GRANTED" but if the incorrect password is inserted, the LCD will display "!ACCESS DENIED!". After successfully built the electronic based safety drawer, it can be said that the objectives of this project has been achieved. This project was invented to overcome the issues faced by the normal safe box. Users just have to remember the passwords and not to worry about the lost of keys like the safe box. This project was designed by electronically programmed Arduino that runs the program. By having this electronic safe drawer, users will feel safe and satisfied to keep their valuable possessions.