APC issue 542 (February) is now available, ensuring you never miss another software update.

Description: This project is a smart security system using an Arduino, an ultrasonic sensor, three LEDs, a buzzer, a DC motor, a joystick, and an LCD display.

This is my very first public repository that i share to public, i publishing this just for having fun and saving my code in future and for comparing my code in this time and in future, sorry for bad ...