Sutopo, DanielChristevan, Iwan2023-01-092023-01-092018-07-17https://repository.polibatam.ac.id/xmlui/handle/123456789/1071Prototype Automatic Shopping Cart With Communication Bluetooth is a robot that serves as a shopping cart that can follow users automatically, without the need to be driven by being pushed or pulled, so it can facilitate users in shopping. To that end, the prototype trolley has the ability to detect the movement of its users and the distance users with prototype trolleys for the trolley can follow its users. The trolley robot control uses Arduino Uno that is placed on the prototype of the trolley, and uses a compass sensor to detect every movement of its users. The data from the compass sensor will be transmitted via the bluetooth slave in the user's waist bag to the bluetooth master in the prototype trolley which results will be used to use the servo motor as the prototype in the prototype trolley. From testing the prototype has done the trolley can follow the user effectively with a maximum load of 2 kg and the trolley can follow the user when walking in front of the trolley with the maximum speed of the user of 0.52 m/s or 1.87 km/h.idTeknik ElektroMekatronikaIlmu Komputer, Pengetahuan, SistemManufacture of Products for Specific UsesThesis