Tecnologia customizada para atualização de equipamentos de discotecagem

Abstract

Current disc jockeying (DJing) uses, as its main tool, the so-called controllers, which are specific hardware devices designed for sound handling through the MIDI protocol (Musical Instrument Digital Interface). This setup requires only a computer and software for audio and video manipulation. However, many pieces of equipment considered classic are still commonly found in nightclubs today. These devices, in most cases, lack connectivity with computers, such as the well-known Pioneer CDJ 1000MK.To meet this modernization demand, this research project developed a custom electronic circuit to adapt the target equipment, offering a much lower acquisition cost when compared to currently available devices. This technology provides plug-and-play connectivity with computers, increasing the capacity and efficiency of sound devices and, consequently, improving mixing quality. The electronic circuit board is installed inside the original CDJ unit, performing a hardware upgrade.The objective of this study is to update five versions of Pioneer CDJs using the custom electronic circuit, which is based on ATmel microcontrollers. The case study for updating the electronic device adopted a methodology involving theoretical research in relevant literature, analysis of service manuals, examination of major embedded systems available on the market, component testing using Tinkercad, circuit design using EasyEDA, circuit assembly in the DJ equipment, and performance analysis using dedicated software.As a result, the updated CDJs demonstrated performance comparable to devices currently available on the market with the same purpose.