Journal

Blog 2010

Thoughts on photography, technology, music, and creative work.

December 2010

Griffith Park Hike

This weekend my lovely wife Penelope and I hiked up to Mt. Lee in Griffith Park. Mt. Lee is also the peak that the Hollywood Sign sits on. You can't quite get to the sign as it's fenced off and marked "No Trespassing", but you can get above it.

The route we took started at the Camp Hollywoodland parking lot and was about 6.5 miles round trip. The hike took us about two and a half hours with many stops for photos.

The company I work for, Cartifact, has an interactive map of Griffith Park you can check out. The map is quite detailed. We're working on an updated version along with some cool new ways to view it.

The LA sky was amazingly clear and smog-free that day. In the photos below you can clearly see Catalina in the distance:

Los Angeles From The Hollywood Sign #### Los Angeles From The Hollywood Sign

Mt. Lee Antennas and Downtown Los Angeles #### Mt. Lee Antennas and Downtown Los Angeles

Penelope and Dave Atop Mt. Lee #### Penelope and Dave Atop Mt. Lee

Turning Leaves in Griffith Park #### Turning Leaves in Griffith Park

December 16, 2010 Read more

November 2010

Null Space Labs - Los Angeles Hackerspace

Null Space Labs

Recently I joined a hackerspace in Downtown LA called Null Space Labs. What is a hackerspace you ask? A hackerspace is a communal workshop where folks can work on electronics, programming and basically whatever tech stuff they're interested in. NSL was started by a group of people from the local computer security (hacking) scene earlier this year.

Here is the description from the website:

Null Space Labs, a hackerspace in downtown Los Angeles a place for people who do interesting things with tech.

We offer wifi, coworking space, an electronics and hardware lab with soldering stations and rework equipment, a small wet lab, simple wood and metal working tools, public computers, and most of all a creative environment that's open to visitors.

Fields of interest of people you might find at the lab include DIY electronics, hardware hacking, lock picking, game development, entrepreneurship, security, graphics programming, AI, photography, privacy and civil rights, etc....

The group that operates Null Space Labs sees itself solely as an infrastructure provider and exerts little influence over projects and events carried out at the lab. We are trying to be financially independent, and finance our operations through membership fees. The space was opened in May 2010.

I joined NSL a few months ago, and this month I took the plunge and became a keyholder, granting me access whenever I feel like working on my projects. The space is great, there are tons of really knowledgeable people who are always more than willing to assist you with pretty much anything related to electronics, microcontrollers, hardware hacking, network security, and more.

The members of NSL are working on a plethora of interesting projects. You can read all about them on the wiki, but here is a selection of some that are particularly interesting:

We have a ton of great equipment for use by members and non-members alike including over a dozen Metcal soldering stations, hot-air and plate rework equipment, oscilloscopes, function generators, a PCB CNC machine, stereo microscopes and much more. We frequently do group buys on parts and PCBs. We also have a large collection of part in house, available for use in your project (donations appreciated).

If you're in the neighborhood, come by and check out our space. If you want to learn about electronics and soldering we have a fun board you can put together in an hour or two if you're new to SMD soldering. You can tell if we're in by looking at this wiki page or by following the NSL Status twitter stream. Here is our address:

  • Null Space Labs
  • 1015 S Main St - 3rd Floor
  • Los Angeles CA, 90015
November 18, 2010 Read more

Stellaris Evalbot Review <del>and Giveaway</del> and Winners

TI Stellaris Evalbot

Texas Instruments recently came out with a fun and powerful development robot based on the Stellaris LM3S9B92 microcontroller. The robot, known as the Stellaris Evalbot, is packed with tons of functionality that leverages the LN2S9B92's robust feature set. The Evalbot comes pre-assembled, with the exception of the wheels and bump arms which take just a few minutes to put together.

First of all, let's talk about the function-rich microcontroller at the heart of the Evalbot: the Stellaris LM3S9B92. The Stellaris, created by Luminary Micro (acquired in 2009 by Texas Instruments) is a 32-bit ARM Cortex-M3 MCU which runs at speeds up to 80Mhz. It sports a wide array of features including:

  • 256 kB flash and 96 kB SRAM
  • 32 Channel DMA
  • 32-bit external peripheral interface
  • ROM preloaded with a boot loader, AES and CRC functionality
  • 10/100 Ethernet MAC/PHY
  • 2 CAN controllers
  • USB 2.0 Full Speed OTG/Host/Device
  • 2 SSI / SPI controllers
  • 2 I2C interfaces
  • I2S interface
  • 3 UARTs
  • 8 motion-control PWM outputs with dead-band
  • 2 quadrature encoder inputs
  • 4 fault protection inputs
  • 3 analog comparators
  • 16 channel 10-bit ADC
  • 16 digital comparators
  • 24-bit systick timer
  • 4 32-bit or 8 16-bit timers
  • 2 watchdog timers
  • Low drop-out voltage regulator
  • Up to 65 GPIOs

The Evalbot is the perfect platform for learning about and developing for the LM3S9B92. It takes advantage of nearly every feature included in the Stellaris MCU. The Evalbot is both battery and USB powered, and automatically switches when plugged in to a computer. It features a collection of analog and digital peripherals along with a large amount of breakout pads and headers for I/O expansion. The Evalbot includes:

  • MicroSD card connector
  • USB Host and Device connectors
  • I2S audio codec and speaker
  • RJ45 Ethernet connector
  • Bright 96 x 16 blue OLED display
  • On-board In-Circuit Debug Interface (ICDI)
  • Wireless communication expansion port
  • Two DC gear-motors provide drive and steering
  • Opto-sensors detect wheel rotation with 45° resolution
  • Sensors for bump detection

The Evalbot comes preloaded with the μC/OS-III real-time kernel. The Evalbot includes a time-limited version of the IDE (from IAR) you will need to get started programming the bot. Also included is the source code for the Evalbot and some handy in-circuit debugging tools. It's fairly easy to get set up, but runs on Windows only. I was able to flash a modified version of the firmware after just a few minutes of tinkering. My only complaint is that the software is quite expensive to purchase once the trial period runs out.

The Evalbot retails for $149 for the robot by itself or $200 for the robot and a book about programming the μC/OS-III real-time kernel. If you're looking to learn more about real-time systems and play with a powerful microprocessor I highly recommend the Evalbot. ~~As I mentioned in the headline, I have five Evalbots to giveaway,~~ click here for more info about the giveaway.

Stellaris Evalbot

Giveaway Info:

Texas Instruments was generous enough to send me five Evalbots to give away. I ~~will be drawing~~ drew names from a hat on Black Friday, November 26th. To be entered in the drawing you must [have] meet the following requirements:

  • Have a project idea for the Evalbot
  • Be a paying member of a hackerspace
  • Be willing to share photos and/or a brief writeup once you have completed your project
  • Be a US resident (I have to ship these on my own dime)
  • Post a comment with your project idea and hackerspace affiliation below

~~To be entered in the drawing, post a comment below describing your project idea. Don't forget to mention which hackerspace you belong to.~~

Update:

I drew names out of a hat (literally), here are the winners:

  1. Clarence Risher from Freeside in Atlanta, GA
  2. Daryll Strauss from CrashSpace in Culver City, CA.
  3. Erik Arendall from Makers Local 256 in Huntsville, AL.
  4. flea from 23b in Fullerton, CA.
  5. tilver from DenHac in Denver, CO.
  6. Although not drawn out of a hat, members of Null Space Labs in Los Angeles, CA can use mine.
November 17, 2010 Read more

SPAWAR - Autonomous Military Robots

A few years ago I toured the U.S. Navy's Space and Naval Warfare Systems Center Robotics Lab in San Diego. I shot photos and wrote a piece for Wired about my experience there. What follows are some out-takes along with high-res versions of many of the shots in the piece. Autonomous military robots... what could go wrong?

SAN DIEGO -- The Navy's MDARS-E is an armed robot that can track anything that moves. Told that I was the target, the unmanned vehicle trained its guns on me and ordered, "Stay where you are," in an intimidating robot voice. And yes, it was frightening. Perched atop a strip of cliffs lining a beautiful section of the Pacific Ocean, the Space and Naval Warfare System Command in San Diego develops semiautonomous armed robots for use in combat by the U.S. military. "We're not building Skynet" says Bart Everett, the technical director for robotics at SPAWAR. Though Everett assured me that the use of the robots' on-board weapons is under the strict control of their operators, the lab's bots can navigate and map complicated terrain, work cooperatively with soldiers and identify and confront hostile targets. Sure, they're no Johnny Five, but robots with guns are both creepy and fascinating.

Robart 3E at SPAWAR #### Robart 3E at SPAWAR

ROBART III is a prototype platform designed in-house at SPAWAR. If it weren't for the chain gun and missiles, he would be pretty cute. Once he's ready for battle he'll almost certainly don an evil-looking suit of armor. ROBART's sensor array consists of a multitude of cameras, SICK LIDAR (like radar, but with lasers), ultrasonic transducers (gold spots), passive IR (infrared radiation) detectors and more. The weapons are planned to work in unison with a special rifle that would automatically target where a soldier points his weapon.

Laser Guided Chain Gun on Development Robot #### Laser Guided Chain Gun on Development Robot

One of ROBART III's weapon systems is this nonlethal pneumatic chain gun. It uses a combination of laser sighting and machine vision to lock in on its target and barrages it with a torrent of 3/16-inch-diameter projectiles. In tests, plastic pellets (like air-soft munitions) and steel darts were used.

Autonomous Machine Gun #### Autonomous Machine Gun

This prototype robotic weapon platform is designed to be buried underground for camouflaged deployment. When called to action, the robotic gun pops up and starts shooting. If you're the unlucky soul on the business end of this gun, it's likely curtains for you -- this robot is an extremely accurate shooter. A high-tech night-vision scope permits dead-on targeting even during moonless nights.

November 16, 2010 Read more

LA Walkabouts - My Solo Show at Indigo Gallery in Pomona

This Saturday marks the opening of my third solo show. The show is at Indigo Gallery in Pomona. The work consists of an eclectic assortment of photos from my many Downtown LA Walkabouts. There are many other galleries open during the Pomona Art Walk, which brings a large group of people to downtown Pomona. The show runs until December 25th, so you have plenty of time to check it out. This Saturday is the opening reception. Here are the details:

Dave Bullock L.A. Walkabouts

Indigo Gallery

558 W. Second Street

Pomona, CA 91766

  • Opening Reception - Saturday, Nov. 13th 6-10pm
  • Last Saturday Reception - Saturday, Nov. 27th 6-9pm
  • December Reception - Saturday, Dec. 11th 6-10pm

Here are the photos from the show:

Sakura Crossing

November 11, 2010 Read more

The Station Fire - One Year Later

Roughly one year ago a huge fire tore through Southern California burning over 160,000 acres of forestland. When it first started, I took photos of the Station Fire blazing through our local mountains.

A few weeks ago, and almost exactly a year after the Station Fire was extinguished, Penelope and I went for a drive up Angeles Crest Highway. The route we usually take, through Pasadena/La Cañada is still closed, but we were able to access the forest going in the back way.

The bad news is, much of the forest has been burnt to a crisp. The good news is that there is life everywhere and the forest will return eventually. Here are a few photos I shot of the forest coming back to life:

Life Coming Back #### Life Coming Back

November 8, 2010 Read more

October 2010

NASA's Deep Space Network - Goldstone

A few years back I toured NASA's Goldstone facility for Wired. Goldstone is a node on the Deep Space Network. Basically, it's a collection or gargantuan antennas in the Mojave desert. NASA uses the antennas to talk to various satellites, rovers, probes and other space-based devices it rockets out of our atmosphere. I just posted a photo gallery of high-res images, many of them never published before. Check out my photos of Goldstone, NASA's Deep Space Network.

October 25, 2010 Read more

September 2010

Welcome to the New and Improved eecue.com!

This weekend I quietly rolled out the latest version of this website. I completely redesigned and reprogrammed it and along the way I added a ton of new features.

Over the years I have released several iterations of eecue.com with various feature enhancements along the way. This release is my most ambitious yet. Some of the highlights include much bigger images, print ordering with greatly reduced prices, enhanced navigation and tagging and much more.

Here is a fairly complete list of new features:

  • Nice BIG images.
  • Gesture and keyboard navigation. When you're viewing images or blog posts, try using your arrow keys to navigate through the images. Fun stuff. On iPads/iPhones/other iOS based devices swiping left and right accomplishes the same function.
  • Full HTML5 implementation using HTML5 Boilerplate.
  • Enhanced tag cloud and tag viewing.
  • Better archive system, showing photos, blog posts and tweets.
  • Prints of every photo in my entire archive are available for purchase. Click on the BUY PRINT / LICENSE button. Now with much lower prices!
  • Shorter URLs for tweeting/linking goodness: http://eecue.com/p/30389/
  • Improved cacheing for faster browsing.
  • Aggregated home page displaying blog posts, tweets, links, photos and videos.
  • Replaced missing flickr image embeds in my blog with local versions of said images.
  • 1024px wide interface for iPad glory.
  • Removed all advertising from entire site. Please buy prints to help offset my hosting cost!

There is more to come, I still have a bunch of features I will be adding in my free time over the next few weeks. In addition to those features I have tons of photos to post and dozens of blog posts that I've been meaning to write.

Let me know if you have any issues with the site in the comments below or by emailing me directly.

Sixth Street Viaduct

September 1, 2010 Read more

August 2010

links for 2010-08-16

August 16, 2010 Read more

links for 2010-08-08

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links for 2010-08-04

August 4, 2010 Read more

July 2010

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links for 2010-07-28

July 28, 2010 Read more

June 2010

links for 2010-06-13

June 13, 2010 Read more

May 2010

links for 2010-05-07

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April 2010

links for 2010-04-21

April 21, 2010 Read more

links for 2010-04-16

April 16, 2010 Read more

Coachella Photos

This weekend I will be shooting photos at Coachella. I've covered the show the last few years for Wired, and some of my shots have ended up in other places like URB and BoingBoing. This year one of my photos (below) will grace the cover of the Coachella Camping Guide, being put together by URB.

This year I released an update to the Official Coachella iPhone app and created a streamlined Coachella Android app as well.

Here are some of my favorite photos from Coachellas past:

Coachella Camping Baloons and Orion

Jack Johnson Cherry Picker

M.I.A.

Click here to see more of my Coachella Photos...

April 13, 2010 Read more

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April 11, 2010 Read more

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April 3, 2010 Read more

March 2010

links for 2010-03-24

March 24, 2010 Read more

Death Valley In Bloom With The Desert Explorers

Last weekend my lovely wife Penelope and I took a trip to Death Valley for the Desert Explorers Rendezvous. The Desert Explorers are a group of fun, knowledgeable folks who like to spend time exploring the desert. The exploration frequently involves 4WD vehicles traveling over challenging terrain through beautiful scenery in and around Southern California. I've written about the Desert Explorers before.

This year's Rendezvous took place at the Amargosa Hotel and Opera House. The hotel is located in a unique and historic town, currently with a population of three, called Death Valley Junction.

The photos below are from a day trip we took through Death Valley. We hit dirt between Zabriskie Point and Furnace Creek, heading up Echo Canyon road. Along the way we saw wildflowers, petroglyphs and drove up a rock waterfall, a very difficult part of the road. We eventually ended up in the city of Amorgosa, Nevada after traveling roughly 40 miles on a 4WD trail.

Here are some photos from the trip, as you can see the flowers are starting to bloom. I would say this weekend or next would be the perfect time to see them in all their glory:

Primrose and Phacelia

Petroglyphs in Echo Canyon

Telescope Peak from Echo Canyon Road

March 24, 2010 Read more

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March 9, 2010 Read more

February 2010

Happy Valentines/Nursiversary To My Lovely Wife Penelope

A year ago today my lovely wife Penelope and I were also staying in San Francisco. She had just taken the nursing exam known as the NCLEX. We were both eagerly awaiting news of the results of her test, which are posted on the California Nursing Board's website. Early Valentines morning she woke me up excitedly and told me the wonderful news. She passed, my wonderful wife was a nurse!

My reaction: "BEST VALENTINES DAY EVER.... @peneloper IS A NURSE! SHE PASSED HER NCLEX!!!! WOHOOOOOO!!!!!!".

I just want you (and the whole world) to know how much I love you, sweetie. Thank you so much for your hard work, companionship and most importantly your sweet, caring love.

Dave and Penelope on Lake Tahoe

Penelope and I in our matching Search and Rescue team jackets.

February 14, 2010 Read more

Lake Tahoe

Lake Tahoe was beautiful and I couldn't help but to pull over and take some photos during our drive around the lake. These were taken on the Nevada side.

Lake Tahoe

Snow covered boulders make for a beach on Lake Tahoe.

February 14, 2010 Read more

Waterhouse Peak in Lake Tahoe

After three nights of camping in Death Valley it was time for the second portion of our vacation: Lake Tahoe. Penelope found an amazing bed and breakfast called the Fireside Lodge. We will definitely be returning to stay here in the future.

On our first night we had dinner at a restaurant called Evan's, which is right across the street from the Fireside. Our waiter was really cool and he suggested a good place to go skiing or snow-shoeing that the locals love called Waterhouse peak in Luther Pass.

The next morning we drove up to Luther Pass, parked, put on our snowshoes and started up to the peak. The hike was several miles, but the fun part was the 1700 feet of elevation we gained. It was great, strenuous snowshoeing. It took two hours to reach the peak and an hour to make it down. Fun stuff!

View From Waterhouse Peak near South Lake Tahoe

The view from Waterhouse peak is stunning.

February 14, 2010 Read more

Tucki Mine in Death Valley

After driving through Emigrant Pass, we decided to take a side trip to Tucki Mine. The four-wheel drive road to the mine is about 9 miles long and fairly rough in some places. It was a nice drive on a beautiful canyon road, some of which was covered with snow. Once we reached the mine we ate lunch and checked out the cabin that the National Park Service keeps maintained for emergency use.

Cabin at Tucki Mine in Death Valley

The Park Service maintains this cabin at the Tucki Mine in Death Valley

February 13, 2010 Read more

Death Valley Snow: Emigrant Pass

After camping at the Wildrose campsite on Saturday night, Penelope and I hit the road around 8 A.M. We took Emigrant Pass into Death Valley. On our way in we passed a ranger on the snow-covered road. I waved, he nodded and that was that.

Later on we discovered that the road we were on was actually closed, he was headed in to lock the gate on the other side! I'm guessing he saw our vehicle and wasn't worried. The road was beautiful. There was about six inches of snow covering the pavement and the ground was white as far as the eye could see. It was really amazing.

We took a side trip to Skidoo mine. We made it about 5 of the 10 miles when we decided to turn around. We were driving through three foot deep snow drifts on a steep, narrow mountain road with sheer cliffs off to the side. We had chains, but didn't need them as we weren't slipping at all, but I decided it just wasn't worth the risk so we turned around at a great lookout point.

Emigrant Pass in Death Valley Covered in Snow

Emigrant Pass is covered with snow after a big snowstorm the night before.

February 13, 2010 Read more

Trona Pinnacles

On our way to Death Valley, my lovely wife Penelope and I took a detour to check out the Trona Pinnacles. It was raining pretty heavily and the road was a flooded muddy mess. Our trusty FJ Cruiser handled the gooey clay beautifully.

Trona Pinnacles

The Trona Pinnacles jut out of the ground behind a river of muddy water in the foreground.

February 13, 2010 Read more