To get the attention of the waiter in restaurants, customers typically adopt the traditional method of waving. Due to waiter shortages and rush-hour in some places, this method causes delay in service delivery. Many different alerting methods have been suggested to deal with this issue. In this work, two internet of things (IoT) prototypes have been developed. The first prototype uses an ESP32 microprocessor connected to a computer that serves as the waiter's receiver, and the customer transmitter is a phone with an app called serial Bluetooth terminal (SBT) that is installed on the customer's phone. The second prototype has the customer’s transmitter being a small IoT device developed with a display, buttons, a buzzer and an ESP32 microprocessor. These systems have the potential to reduce waiting times, improve efficiency in service delivery where waiters operate, as well as allow future enhancements to the systems as per business needs.

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