Bachelor Thesis from the year 2018 in the subject Engineering - Mechanical Engineering, grade: 75%, University of Thi-Qar, language: English, abstract: The project is about designing and building a digital controller that manages the opening and closing of a sliding gate. This gate exists in front of the workshops of college of engineering. The controller consists of remote control and cards reader. Each card has a code which can be detected by the radio frequency identification (RFID). For registered cards the gate will open for a while then closing automatically, the cards-reader supported on a column which is near enough for the drivers to attach the cards to. On the other hand, the remote can open and close the gate for any level. Arduino has many features over other microcontrollers, it is cheap, small in size has a simple programming environment and open-source software and hardware. The Arduino software runs on Windows and Linux operating systems.