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So, to continue with my obsession with lighting, I wanted to design my own high brightness wall washer. It had to be overkill though, that’s just how I roll! My project is named the “Blinder,” for obvious reasons. One unit has 8 high brightness 3W multicolor LED’s mounted to a long aluminum backplating. The system pulls approximately 8.4 amps at 5V (42 watts) during full brightness. Since I am cheap, I’m using a 300w ATX power supply I ripped from an old computer. I can control the unit wirelessly using Xbee which talks to an AVR microcontroller which controls the LEDs via an LED Driver (Texas Instrument’s TLC5947). All of these components are mounted onto a custom-designed PCB I had manufactured at Gold Phoneix PCB. To top all of the insanity, I’m making 3 of these! Yea, you’re right.. I just cranked it to 11.

The build is currently a work in progress. I have only started to finish one of them. Since it is final’s week, I haven’t had much time to work on them. I will post the full source code, schematics, and videos sometime after Christmas break. Until then, enjoy the timelapse footage of me building the LED drivers one at a time with a short video of one set running the demo software.

So far I would like to thank TNTech’s Baja Team (specifically Frank Smith) for letting me use their shop and helping me with the metal forming. Mwhaha

Edit: I found a bug in my firmware used in testing that reduces the brightness by a half (I needed one more bit shift!) – so the video at the end of the timelapse doesn’t do much justice anymore!