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NERP is not exclusively Raspberry Pi, the small computer and embedded systems interest group at Pumping Station:One in Chicago. NERP meets every other Monday at 7pm at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Joao (“Gamblit” on the PS:One mailing list) will give an introduction to JTAG at NERP on Monday. JTAG is an important tool for embedded developers, manufacturers, and hardware hackers who do reverse engineering. The JTAG interface is included in all but the smallest processors. For use in degugging, JTAG provides real-time read/write access to a chip’s cpu, i/o systems, ram, and mass storage. It gives a user live access points inside a running cpu from which they can take over its brain, or just burn a fresh rom.
Physically, JTAG consists of a small set of pins on a microprocessor, a hardware interface device, a cable connected to a host computer, and a (not physical) protocol. JTAG is most generally useful for programming the flash in embedded controllers. That much is simple. The rest, of course is software.
Joao’s tools and target will include:
– Linux Host (Fedora VM)
– GDB (GNU Debugger) and DDD as debuggers
– No IDE (VIM and direct GCC if I need it)
– Olimex USB JTAG and TIAO USB generic interface
– Olimex Atmega128 board (Atmel Atmega128 MCU)
I’ll be talking about flash programming and debugging software running on a
micro-controller. I’ll also be showing that it can read and set
micro-controller pins but not getting into depth about how that actually
works, as that would need some additional low-level explanation. Depending
on feedback and available time I might explore a bit of it.
Find NERP and Pumping Station:One at
Doors open at 6:30pm. The next meeting is October
NERP is free and open to the public.
Ed Bennett ed @ kinetics and electronics com
Tags: electronics, embedded, NERP, Open Source,
raspberry pi, hackerspace, Beagle Bone, Element14, Pumping
There are a lot of online mask patterns that can be printed and cut out with scissors, but it would be much nicer to laser cut one. Let the laser do the hard work. I did these four mask designs tonight; they are perfect for a last minute costume for makers on the go or their kids. Now you can put the roll of toilet tissue back and do better than being a mummy this year. Download the patterns on Thingiverse here.
Pumping Station: One is having a Halloween Party! The theme for this party is: MONSTER MASH! Bring your best ghouls, wights, Frankensteins, wizards, and werewolves to celebrate the holiday with us.
The party will start at 20:00 on Saturday, November 1st. We’ll have some beer and food available, even a Pumpkin Ale which we will be brewing at PS:One this Sunday! If you want anything in particular, feel free to BYOB.
Entrance to the party is free, but a donation of $5 to support the hackerspace is suggested. While it’s not required, you can RSVP on the meetup group to let us know you’re coming.
(We would also really appreciate if anyone wants to come by Sunday morning to help with the cleanup.)
This Saturday I’m celebrating my birthday with a solder party in the PS:One Electronics Lab. Everyone is invited to join me in building a large electronic art work for my upcoming gallery show No-Fi, at Chicago Artists Coalition.
There’ll be pizza, cake, drinks, and lots of knitted circuit boards. Come any time and stay as long as you like. We’ll be there til we run out of things to solder and/or food. Please RSVP on Meet Up so we can plan ahead.
Lucid Dream: Any dream in which one is aware that one is dreaming.
Dream Hackers Club took a field trip to the Museum of Contemporary Art to practice reality checking this past Thursday.
Reality Check: Any act that can be done to help determine whether one is awake or in a dream state.
We practiced building reality checking habits such as reality checking while entering a new room. We also practiced reality checking when we encountered anything dreamlike, which was often since we were surrounded by surrealist art. Later, we enacted lucid dreaming scenes to help us practice making purposeful decisions when we become lucid.
If you would like to find out how you can attended our next field trip to the Museum of Contemporary Art with FREE museum admission come to Dream Hackers Club this Sunday at 7 pm in the craft room.
This past week I had the chance to look at a damaged piece of Kodachrome film using the SEM. Many thanks to Ryan for being an SEM sensei and preparing my sample!
I had recently acquired a box of sixty year old slides from my grandfather, visibly moldy and containing almost no recognizable subjects. The Kodachrome frames are unlabeled except for one: “Pat” written in pencil. I digitized them using a high res flatbed scanner and the resulting images are abstracted, textural, wrinkled, aged, rotten layers of purples and browns. In a few of the slides, a section of a window is visible, a head of a horse, two posed women. Pat turned out to be totally enshrouded in a mold veil, like most of the images. She along with the other photographic subjects had been displaced by abstracted, festering growths.
Sinewy veins stretch across, interspersed with round sacs and sac covered cylindrical pellets. Some other spherical growth breaks the surface creating a hungry alien mouth form. These images got me thinking about the many complicated layers of cultural artifacts. The film slides are part of my family archive, they indicate 1950’s photo technology, they’re fragile physical objects susceptible to mold growths. What do valued objects/ object of nostalgia become when they are separated from their initial purpose? What does it mean to keep a box of film if the intended images are no longer there? The photographer, the creator of the original image, has been deprived of his control as biological functions resulting from imperfect environment and time have taken over.
In a sense, I hope to continue the life of these objects by pushing them into their new life as veiled, abstracted images, reminders that physical world continually effects our efforts to preserve and keep stagnant. While I don’t know who Pat is, or what she looks like, I have a pretty incredible image of something related to her.
As written by Ryan:
First up is SEM Office Hours at 7 PM
We’d previously had problems with the SEM’s vacuum system that prevented us from looking at new samples. This is now fixed! So to celebrate, I intend to do some sample preparation. (We’ve got a 3D printer nozzle to measure and examine, and a piece of color slide film covered in mold.) This will be the first time I’ve opened the sample chamber for a public demonstration.
I’d also like to thank two people who made this possible. Bruce McConachie donated the funds to purchase the parts to repair the scope. And Fitterdave did some very difficult TIG welding to fabricate a custom adaptor.
We we will be ending SEM Office Hours early to accommodate the second Applied Sciences event of the evening. At 8:30, Elizabeth Koprucki will be presenting a lecture: Explore Our Solar System: Data from Space and What You Can Do With It.
So come on out, and, in the words of the venerable Sarcastic Rover:
Let’s Do A Science!
In case hacking on robots is your thing, we’re going to be having a SIGBOT meeting this Thursday. SIGBOT is the Special Interest Group for Robotics. We build, program, and do just about anything to do with robotics.
At this Thursday’s meeting, I’m going to give a brief overview of the Quickbot (http://o-botics.org/robots/quickbot/mooc/v2/), a small mobile robotics platform designed for teaching people how to control mobile robots. I should have one there and put together for people to poke at if they want to.
It’s movie night time! This drama-documentary was screened last year in Chicago, and it covers the life and difficulties of Alan Turing.
“Alan Turing is the genius British mathematician who helped save millions of lives by breaking the German naval Enigma code during World War II. He also was the visionary scientist who gave birth to the computer age, pioneered artificial intelligence, and was the first to investigate the mathematical underpinnings of the living world. Turing is one of the great original thinkers of the 20th century who foresaw the digital world in which we now live. In the eyes of many scientists today, Turing sits alongside Isaac Newton, Albert Einstein, and Charles Darwin at the table of scientific greats.
Instead of recognition for his genius, Alan Turing was driven to a terrible despair and early death – by the nation he had done so much to save…”
When: Friday September 5, 7:30 PM-9:30 PM
Doors open at 7. Feel free to BYOB. Afterwards there will be discussion. This event is free and open to the public.
Where: PS:One Lounge
Additional links of interest: 1.) http://www.cs.virginia.edu/~robins/Turing_Paper_1936.pdf
“On Computable Numbers,” which lays out computability and the universal turing machine
“Computing Machinery and Intelligence,” which contains the Turing Test