Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Implementation of LED Dimming System Using Bluetooth and Smartphone

Bluetooth와 Smartphone을 이용한 LED 디밍 시스템 구현

  • Yang, Woo-Seok (Department of Information & Communication Engineering, WonKwang University) ;
  • Kim, Hye-Myeong (Department of Information & Communication Engineering, WonKwang University) ;
  • Cho, Young-Seek (Department of Information & Communication Engineering, WonKwang University) ;
  • Park, Dae-Hee (Department of Information & Communication Engineering, WonKwang University)
  • 양우석 (원광대학교 정보통신공학과) ;
  • 김혜명 (원광대학교 정보통신공학과) ;
  • 조영식 (원광대학교 정보통신공학과) ;
  • 박대희 (원광대학교 정보통신공학과)
  • Received : 2014.12.16
  • Accepted : 2014.12.19
  • Published : 2015.01.01
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Abstract

In this paper, LED lighting system is realized by using Bluetooth wireless communications and smartphones. A bluetooth module with a lighting control function is manufactured by miniaturizing a development board of TI company and the volume of LED dimming system as a whole is reduced. And a trial product is materialized by designing a hardware composed of the manufactured bluetooth module, LED down light equipped with degree warm white and cool white, and 2-channel LED driver; and LED dimming software. The materialized trial product is controled in terms of the brightness and color temperature of LED light source using an application of a smartphone. The experiment showed that the users can easily control the intensity of illumination of LED light source by using the scroll bar of the applications of smartphones. In addition, the color temperatures of both warm white and cool white can be controlled, and when the color temperature of the trial product using the manufactured bluetooth module is compared with that of a trial product of TI company, they show the same color temperatures.

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References

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