Design automatic waitress in android based restaurant using MQTT communication protocol

Abstract

Abstract Currently, many technologies are created to facilitate and help solve problems in society. The development of technology and industrial automation encourages people to fulfill their daily needs quickly, precisely and efficiently. At this time, a variety of automatic equipment that supports human performance in carrying out their duties has been widely used, ranging from simple control tools to robotics with a variety of up-to-date technology bases. how to queue in front of the cashier and be delivered by the waiter to the dining table which utilizes a lot of Human Resources with various risks such as dishes or even fallen humans. Automatic serving is an alternative for serving food in a modern style. In the process of serving food, it is carried out by placing the food on the robot, using a stepper motor, the robot can walk and by using the photodiode sensor to detect food running on the food tray it will automatically stop in front of the table of customers who have ordered through the android application that has been provided in each table to seat. This system is expected to be able to make the system at the restaurant and its visitors safer and more comfortable.