Celestial Audio
Jesse Lackey
Freelance electronics design
Oakland, California
Contact: jesse@celestialaudio.com
“Opportunity is missed by most
people because it is dressed in overalls and looks like work.”
~Thomas Edison
High channel count DMX
LED dimmer packs for sale!
Two commercial spinoffs of client projects. Every unit is
tested and supported by the engineer who designed it. Ask me questions about your
application!
ATTENTION: as of march 2016 I
can only sell to existing customers due to lack of time for
customer support. Thanks for your understanding.
DMX LED Hardware main page
32 channels @ 8 amps DMX LED
dimmer pack: this board controls 32 LED clusters/strips (or anything DC powered) of
up to 48V @ 8 Amps each. Beefy!
(Discontinued) 48 channels @ 20 to
80mA DMX LED dimmer pack: this board controls 48 LEDs (single LEDs or several
in series) at 20 to 80mA each, with no current-limiting resistor needed.
Project Portfolio
Some of at least 50 completed in the past 8 years finally
being documented on-line:
Large-scale custom-designed LED installations:
Opened May 13 2010:
A newly renovated nightclub in
the UK has a 10,000 RGB LED installation that was built entirely with
electronics I custom designed!
all the
details
Opened Dec 3 2009:
Louis Vuitton CityCenter at the Crystals, Las Vegas:
4000 LED façade,
custom designed electronics.
News flash! Winner of the
Paul
Waterbury award for outdoor
lighting design for 2010!
all the
details
Pro Audio: (in order of
sophistication)
4 channel
mic preamp and A/D converter for surround sound recording, battery
powered portable
(Keywords: Xilinx FPGA, VHDL, PIC 18F, C, USB,
Audio Precision)
2 channel mic preamp and A/D
converter, battery powered portable
Phantom power 2 channel P48V
unit, battery powered portable
Headphone
Amp and DAC high performance headphone amp and
D/A converter, battery powered portable
DMX and LED related:
Controllers and display drivers
(no LEDs), in order of sophistication
Leoplayer:
Ethernet and SecureDigital card file playback to DMX and custom
RS-485 installations
(Keywords: MC9S12NE64, HCS12, Ethernet, TCP/IP,
LCD, SD, dc/dc, DMX, C, Imagecraft ICC12, NoICE)
DMX 16-AC: 16 channel DMX
controlled 3500W AC light switcher
(Keywords: RS-485 Isolation, PIC18F442,
Solid-state relay, C)
DMX 32-DC: 32 channel DMX
controlled LED / 10-Amp LED cluster dimmer
(Keywords: RS-485 Isolation, PIC18F442, NFET, C,
Sotware PWM)
Displays (LEDs and
electronics on same board), in order of sophistication
144 RGB:
a 9" x 9" grid of 12 x 12 RGB 10mm LEDs, DMX controlled
(Keywords: DMX, Multiplex, PFET, TLC5940, PIC
18F2520, C, high current)
bm2006: 25 RGB 10mm LED 9V battery
powered wearable for burningman 2006 (also with RS-485 control)
(Keywords: DMX, Multiplex, PFET, TLC5940, PIC
18F2520, C, portable)
Hive:
25 LED RS-485 controlled board (each LED individually dimmable) in a
192 unit installation
(Keywords: RS-485, TLC5940, PIC 18F252, C)
bm2005: 16 white 10mm LED 9V
battery powered wearable for burningman 2005 (also with RS-485
control)
(Keywords: RS-485, TLC5940, PIC 18F2520, C, portable)
bm2004: 25 orange 5mm LED 9V battery
powered wearable for burningman 2004
(Keywords: PIC 18F442, NFET, C, portable)
DMX splitter, 8-way,
world's smallest I'm sure
Also see the pile of
miscellaneous projects, many involve blinking things, if you're into
that kinda stuff. (who isn't?)
Other: (in order of
sophistication)
(many more documented...eventually)
Terp: wirelessly controllable
mp3 player using Smartmedia flash memory & rechargeable li-ion
battery
(Keywords: PIC18LF6720, STA013, dc/dc, Linx
HPIII, 900Mhz, MIDI, Smartmedia, FAT12, C)
PICBasic programmable:
general-purpose control board for onesies of custom random art+tech
stuff
(Keywords: PIC18F4620, RS-485, NFET,
Potentiometer, C, PicBasic)
Many other things: projects too
small to warrant their own webpage. I've done a lot of miscellany
(Keywords: PIC 18F, PIC 16F, C, Assembler, MIDI,
EL wire, triac, xenon strobe lights, RS-485, DMX splitter)
Ancient things.
The "WaveFix" Freebie Software (DOS)
Windows 95 / DOS / PC Hardware tips and
tricks for audio work (in case you are stuck in 1996)
personal misc junk-ola