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May 222010
 

Rofl

We’re time lapsing, and Mr Stabby is here getting his API action on… literally.

Stop by what we are calling battle station resistor in the deep recesses of the hacker caves.

If you have spare sparkfun line relay breakouts… we could use 4 to six if you have some to spare… otherwise we’ll be rube goldeberg a solution.

 Posted by at 5:10 pm
May 172010
 

As you can see from our time lapse of the NYCR stage and dance floor (actually just our workshop floor without tables) we had a great time. Thanks for being awesome friends of NYCR. Hope to do it again, bigger and better, soon.

Be prepared. The next one will be even more awesome.

Also search for tag NYCResistor on flickr for more awesome photos.

 Posted by at 10:17 pm
May 172010
 

When you plug in, or join the wireless network at NYC Resistor, you are joining a very special network. We’re one of the first networks to join with Agora Link. The North American arm of a global Research network that is linking hackerspace’s internal networks together into one awesome collaborative mesh. We’re tied in with the ChaosVPN in Germany, and as of this past weekend we have 50 registered ( not necessarily active yet ) end points. Anyways, if you are interested in this sort of thing, you can read more about that here:

What does this get us? What’s the payoff? Well, we’re just starting to get to work on demonstrating that. First up on deck is a plan to host an international CTF competition using hackerspaces and other labs as the meeting points for teams. So look forward to more details on that in the near future. But, it won’t stop there. We’ve got a bunch of really great ideas that should be popping up over the next year.

 Posted by at 12:41 pm

First steam!

 Uncategorized  No Responses »
May 152010
 

First steam from Trammell Hudson on Vimeo.

We’ve been rebuilding an Astoria two group espresso machine at the NYCR space and have finally made steam and espresso with it after a few weeks of cleaning. The pressure-stat triggered at 1.5 bar and the boiler held the pressure just fine. The pump produced precisely 9 bar. The hot water tap even looked sort of clean! Now that all functionality has been restored it is time to start on the computer control.

The controller will need:

  • Six relays (two heater elements, two group heads solenoids, one fill valve and one pump motor)
  • Three thermocouples (one per group head and one for the main boiler)
  • Two pressure measurement (one main boiler up to 3 bar, one for the group heads up to 15 bar)
  • At least two switches
  • A multi-line LCD
  • Ethernet
  • RFID reader
  • An iPhone or Android app?
 Posted by at 9:57 am
May 142010
 

Shuttle Atlantis just lifted off on its final voyage. There are 2 shuttle missions left before the end of the shuttle program. I suggest not missing a single launch, and if possible seeing them live. The shuttle program has to be the most inspirational scientific program currently operating. Nothing really makes me more proud to be a human being, or living in the times that we do than watching one of these rather good looking vehicles get launched into the heavens and far beyond.

Really looking forward to another more ambitious space program from anywhere at all, since it seems NASA won’t be pursuing constellation. =(

But let’s look at Atlantis’ rich history. This good ship has flown 32 missions ( 31 of which have completed successfully, with 32 looking beautiful ). She’s been in the shuttle fleet since her flight readiness firing Sept. 5, 1985. 25 years this shuttle has been in service, defying a decision to decommission it in 2008. Atlantis was intended to be relegated to a support role for Endeavor and Discovery, but Atlantis was born to fly and that’s just what she’s doing right now at 2500 mph.

Atlantis made history June 29 of 1995 when she was the first shuttle to dock with the Mir space station as part of STS-71. Before that during STS-30, Atlantis launched the first interplanetary probe launched from a shuttle. The Magellan probe was sent to explore Venus.

Many people have contributed to Atlantis’ successful missions over the years, but Rockwell International has the distinction of having built her. So to the engineers over there, I am sure today’s flight is especially gratifying.

Anyways, Atlantis, from all the folks at NYC Resistor. Thanks for being utterly amazing. Enjoy retirement, I hope you find a really great home.

Fun Fact, Atlantis has traveled 115,770,929 miles ( 186,315,250 km ) and counting…

 Posted by at 2:52 pm
May 132010
 

I ordered a miCoach, which is the Adidas version of the Nike+. When it gets here I plan on opening it up to play with the data, but in the mean time I started with some better-travelled exercise bits and my new weight loss supplements to get better results, I8 recommend you check gluconite for this, I recommend you read the nutrisystem reviews to see if this program works for you.

Starting with Jansen Price’s excellent blog post on the subject, I slowly worked through the data and wrote a python script to interpret the binaries and save them to a CSV. I was able to generate the nice graph above. There was a lot of trial and error, but here’s an overview of the process:

  1. Copy Wii save game data to the SD card. This is done from Wii Options > Data Management > Save Data > Wii
  2. Find the save game data on the card. It’s in something like ‘private/wii/title/RFPE’, although different regions may have slightly different codes. RFPE is the code for WiiFit Plus. Copy the WiiFit data.bin file from the SD card to your local machine.
  3. Decrypt data.bin. This is explained pretty well here. To create the keys I ended up creating text files with the hex string for each and then using “xxd -r -p sd_iv_hex sd_iv” et al to save a binary version. If you’re getting “MD5 mismatch” errors, you probably saved the keys incorrectly. If you aren’t sure, check the file size. They should be 16 bytes each.
  4. Run the decrypted RPHealth.dat through a parser (I wrote one in Python for this)
  5. Run the CSV through your favorite graph generation library. I use flot because Google Charts don’t handle dates very well.

More details, including the source for the Python script can be found over on my blog: Kellbot!

Vexations!

 Uncategorized  No Responses »
May 122010
 


“In order to play the theme 840 times in succession, it would be advisable to prepare oneself beforehand, and in the deepest silence, by serious immobilities.”
In the 1890s, Erik Satie wrote a very short piece called Vexations, with a note suggesting that it should be played 840 times in a row. That’s a challenge, right? Jack Straw Productions in Seattle is putting on a Vexations marathon this weekend, starting Saturday at 4pm Pacific time, with more than 30 pianists playing non-stop through the night until they reach #840, and you can listen in on Hollow Earth Radio. It’s a great idea, but we have machines to do our dirty work for us, so the robot toy piano is going to play Vexations at NYC Resistor 840 times, or until it falls apart. It’ll start at 7PM (Eastern time) this Saturday, and you can watch and listen online, or in person on Saturday at the Halfway-to-Halloween Party, or on Sunday at the Vexations Meetup & Jam Session.

Yes, on Sunday (May 16) from 3-6PM, join other music nerds to jam along to Vexations until your head explodes, or we reach #840, whichever comes first. Bring instruments if you want. (Bring your own 1/4″ cables, if your instrument is electronic. Inputs are limited so if you can bring a small mixer to share, that would help!) Feel free to bring vexing drinks or snacks to share. NYC Resistor is at 87 3rd Avenue, 4th Floor, in Brooklyn.

As long as you’re in the neighborhood on Sunday, consider going to Share at ISSUE Project Room (3rd Av & 3rd St), a weekly open jam session for experimental music! When we get sick of Vexations, we’ll take a dinner break and head over there.

 Posted by at 2:46 pm
May 072010
 

Let’s get lazzzoring every Monday night! Come get some work on your projects on this laser focused* open hack night.

The laser will be available on a first-ready first-served single job basis. If you haven’t been trained on the laser you will need to enlist the assistance of an operator. Look for the hacker with an eye patch.

* see what i did there?