Multi-Colored LED Control System Implemented in Programmable SoC with Subset of DMX512 Specification


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The Light Emitting Diode (LED) is a highly efficiency light source, normally controlled by pulse width modulation (PWM) with intelligent environment condition sensing. While the connection between the control center and LED devices could be wireless or cable-connected, the power lines always have cables, and the signaling cable could be bundled with the power cables. Given a large number of fixed devices and a medium distance between devices, DMX512 physical signaling could serve as an appropriate good protocol for the control system. This paper proposes a method to implement a multi-color (RGB) LED programmable control system on chip for increased flexibility and scalability. The implementation comprises a command set architecture customized for RGB-color LEDs, composed of setup, action and query commands, and includes a special visible method to indicate device ID.



Edited by:

Wen-Hsiang Hsieh






F. H. F. Wu et al., "Multi-Colored LED Control System Implemented in Programmable SoC with Subset of DMX512 Specification", Applied Mechanics and Materials, Vols. 284-287, pp. 2880-2884, 2013

Online since:

January 2013




[1] Shang-Chih Chuang, Chien-Chuan Chen, Cheng-Huan Chen, Shao-Wen Chen, Sheng-Che Shen, Ming-Hsun Hsieh, Fu-Hai Frank Wu, Tsung-Han Tsai, Heng-Chun Huang, Yu-Chu Chen. High Collection Efficiency Fanless LED Source Module for Projectors. SID Symposium Digest of Technical Papers - May 2007 - Volume 38, Issue 1, pp.962-964.

DOI: 10.1889/1.2785464

[2] Yu-Kang Lo, Kuan-Hung Wu, Kai-Jun Pai, Huang-Jen Chiu. Design and Implementation of RGB LED Drivers for LCD Backlight Modules. Industrial Electronics, IEEE Transactions on, On page(s): 4862 - 4871 Volume: 56, Issue: 12, Dec. (2009).

DOI: 10.1109/tie.2009.2026771

[3] American National Standard E1. 11-2004, Entertainment Technology USITT DMX512-A, Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories, Entertainment Services and Technology Association, USA, (2004).

[4] Yueh-Ru Yang. Implementation of a colorful RGB-LED light source with an 8-bit microcontroller. Industrial Electronics and Applications (ICIEA), 2010 the 5th IEEE Conference on, On page(s): 1951 – (1956).

DOI: 10.1109/iciea.2010.5515525

[5] Fu-Cheng Wang, Chun-Wen Tang, Bin-Juine Huang. Multivariable Robust Control for a Red–Green–Blue LED Lighting System. Power Electronics, IEEE Transactions on, On page(s): 417 - 428 Volume: 25, Issue: 2, Feb. (2010).

DOI: 10.1109/tpel.2009.2026476

[6] C. Lopez, J. Doval, M. Pereira, S. Perez, J. Dios and O. Lopez. DMX512 controller for high brightness RGB LED matrix. IEEE International Symposium on Industrial Electronics, ISIE 2007, 4-7 June, 2007, pp.3025-3029.

DOI: 10.1109/isie.2007.4375097

[7] Fu-Hai Frank Wu, Tsung-Chi Lee, Jyh-Shing Roger Jang, Kaichun K. Chang, Chun Hung Lu, Wen Nan Wang. A Two-Fold Dynamic Programming Approach to Beat Tracking For Audio Music with Time-Varying Tempo. in Proc. ISMIR, Florida, USA, (2011).

[8] Information on: LBKRTB-M240/N0652, http: /www. edison-opto. com. tw.

[9] Information on: Cypress Semiconductor, http: /www. cypress. com.

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