1. 16.7 Million Color LED Light Fixture Jeffrey Knorr Christopher Yope

2. Project Definition Using very high output light emitting diodes (LED) and the United States Institute for Theatre Technology DMX512 control protocol, a 16.7 million color LED light fixture will be created and interfaced with a NSI MC6300 lighting controller.

3. Block Diagram

4. User Interface R G B

5. Analytical Component

6. Bit PositionDescription 1Start Bit – Logic Low 2-9Data bits – Starting with LSB 10-11Stop Bits – Logic High DMX-512 Data Frame Format DMX-512 Data Frame Format (two stop bits) DMX512 Protocol

8. Task Responsibility JeffSharedChris PIC Research/SelectionPIC Programming Temperature Sensor Research/Selection LED Research/SelectionTestingLED Dimming Circuitry Webpage Project Construction DMX512 Protocol Analysis

9. Sensor Selection Microchip TC1047A Vin between 2.5V and 5.5V 10mV per °C Voltage Slope Output ±0.5 °C Accuracy Low Running Current – Minimizes Self- Heating and More Accurate Result Small Size for Better Placement

10. Sensor Use Total of 4 Sensors One for each color –Red, Green, Blue One for Ambient Temperature  Needed to ensure that the LED’s do not overheat

11. LED Selection LumiLEDs Luxeon Star and Star V LEDs State of the art LEDs LEDs require heatsinking to prevent overheating and to help maintain a low pn junction temperature ColorWavelength Luxeon Product Luxeon Part Number Lumen Output (Each LED) Forward Bias Voltage (VDC) Average Forward Current (mA) Max Junction Temp. (°C) Red625 nmStarLXHL-MD1D273.42350120 Green530 nmStarLXHL-MM1D302.95350120 Blue455 nmStar VLXHL-LR5C306.84700135

12. Microcontroller Selection PICs are widely used in industry due to their low cost and relatively simple instruction set 18F458 features: Programmable Serial Interface, 4 PWM outputs, 10bit ADC, large internal memory (32kb Flash, 1.5kb RAM) Dual Inline Package Low Cost Simple System Integration

13. Work Completed Microcontroller Acquired LED’s Acquired Temperature Sensor Acquired LED Testing Initial Dimming Circuit Design Power Supplies Acquired Initial Webpage Design

14. Worked to be Completed Sensor Testing PIC Programming Finalize Dimming Circuit Website Construction Project Testing Report Demonstration

15. Test Plan Test each subsystem individually Gradually combine subsystems and perform intermediate system tests Initial full system tests System Burn In (& temperature testing) Final thorough system testing

16. Power Consumption

17. System Cost

18. Finish Questions? Comments? Suggestions?