Bluetooth Range Expansion: Using Bluetooth Module and Arduino Microcontroller in Exchanging Messages

Abstract

Bluetooth is a widely used technology in today’s mobile phones. It enables a device to communicate wirelessly without being in line of sight of another device, but Bluetooth has its own shortcomings, such as being only applicable between two Bluetooth-enabled devices at a time and its range being limited. Thus, this study aims to overcome these disadvantages by proposing a new innovation called Bluetooth range expansion that can pair two devices over a longer distance. The proposed Bluetooth range expansion utilizes two hardware devices, namely a Bluetooth module and a microcontroller, but the testing is limited to an open area. The level of acceptability of the prototype is also determined based on its design, functionality, and performance.