Archive for the ‘Uncategorized’Category

An ARM-Based SBC with an RTOS

 A couple of NERPs ago Russ Porte gave a 15 minute intro to the Freedom Board, an inexpensive single board computer.

FRDM-KL25Z_BDTN

Tonight, Russ will present a closer look at the Freescale FRDM-KL25z, using some of the built-in peripherals to start building an interactive device. While building, we’ll cover some i2c basics and learn how using an RTOS can solve synchronization problems.

1) Prototyping on the Freescale FRDM platform.

2) Brief intro to the MMA8450Q Freescale three-axis accelerometer using i2c.

3) Brief overview of synchronization problems and how RTOS primitives can help you solve them.
ALSO

Drew Fustini has passed along a heads-up about NERP being mentioned by Jason Kridner in a twit.tv interview. http://twit.tv/show/floss-weekly/269 Jason works at TI and is one of the designers of the Beagle Bone. It’s very cool that he enjoyed visiting NERP last August . Jason has a standing invitation to speak at NERP whenever he’s in Chicago.

NERP is not exclusively raspberry pi, the small computer interest group at Pumping Station:One in Chicago.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/

NERP meets at 7pm Oct. 21, 2013 at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Doors open at 6:30pm. 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

21

10 2013

NERP: Implementing MIL-STD-1553 with 3 Beagles

Tonight Trefor Delve will present a distributed simulation development making use of three Beagle Bone Blacks as part of the network. The simulation is used as a proof of concept for a general purpose, configurable simulation platform making using of public domain software.

Mil1553_timingMIL Standard 1553 bus timing [wikipedia]

The presentation will introduce the principles of the MIL Standard 1553 data bus, show a simulation with simulated hardware and demonstrate the same software running on distributed Beagle computers making use of the Beagle’s ADC, PWM and SPI interfaces.

The presentation will also demonstrate the use of the QT widget set to allow remote virtual hardware to interact with the Beagle simulation.

The presentation will demonstrate the setup of the ADC, PWM and SPI interfaces using the system capabilities.

NERP is not exclusively raspberry pi, the small computer interest group at Pumping Station:One in Chicago.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/

NERP meets at 7pm Oct., 7, 201313 at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Doors open at 6:30pm. 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

07

10 2013

Urban Sensor Hack (with MAKE and GE), Thursday 9.26

logo

As the the participating hackerspace for MAKE and GE’s Urban Sensor Hack! MAKE presents Maker Sessions, Urban Sensor Hack. But what is the Urban Sensor Hack?  It’s an event happening in real spaces and online. The USH includes talks from….

  • Alasdair Allan, Author of numerous books published by O’Reilly on sensors including “Distributed Network Data” with Kipp Bradford and “iOS Sensor Apps with Arduino.”
  • Ter0 & Kimmo Karvinem, Authors of the “Getting Started with Sensors.”
  • Patrick DiGiusto & Emily Gertz, Authors of “DIY Enviromental Monitoring with Arduino” and “Atmospheric Monitoring with Arduino.”
  • Tim Dye of Aircasting & Michael Heimbinder of Habitatmap.org
  • Rob Faludi, Author of “Building Wireless Sensor Networks”

But what is everyone talking about? The practical, real-world applications of continually developing sensors that enable microcontrollers to interact with our world. This series of events is free and open to the public. Whether you’re an experienced maker or trying to figure out what this whole culture is about – these are the events are for you!

Thursday night (9.26) will be led by Tero and Kimmo Karvinem, the authors of Getting Started with Sensors (http://www.amazon.com/Getting/dp/1449367089). The Google Hangout starts 5:30pm central and you can attend here https://plus.google.com/u/0/events/c3275tpg1f75iosr4mglem32nl8?authkey=CM7Mh-6D7oL47AE&cfem=1

 

Check out http://makezine.com/urban-sensor-hack/ for more details.

26

09 2013

NERP: Open Hardware Summit report and discussion

Tonight at NERP,  Drew and Ed will report on the highlights of the 2013 Open Hardware Summit, which was held last Friday on the campus of MIT. The importance of the OHS gathering is hard to exaggerate. At OHS, the business, philosophy, and technology of open source hardware are synthesized by leaders in there fields. It’s also a lot of fun, and there are posters and demos as well.

NERP is not exclusively raspberry pi, the small computer interest group at Pumping Station:One in Chicago.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/
NERP meets at 7pm 9-9-13 at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Doors open at 6:30pm. 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


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09

09 2013

Pi on the Road

gps-tracker_grande

Tonight at NERP, Craig LeMoyne will be giving a demonstration of Adafruit’s Ultimate GPS module for the Raspberry Pi. To get a preview of the fun stuff that you can do with it, check out his blog at http://chicagodist.com/blogs/news/8319495-gps-camera-fun-with-the-raspberry-pi

NERP is not exclusively raspberry pi, the small computer interest group at Pumping Station:One in Chicago.
Find NERP and Pumping Station:One

at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/

NERP meets at 7pm 8-12-13 at Pumping Station:One, 3519 N. Elston Ave. in Chicago.
Doors open at 6:30pm. 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

 

 

12

08 2013

Giant Coil Sculpture at Hyde Park Art Center

 

Coil-in-Shop

You may have seen me (with amazing help from Madeleine Klichowski, Dan Locks, Matt Triano, and Pipefitter Dave) hard at work on some very curious looking objects (like a giant coil) in the shop and electronics lab. Well, finally, we’re done– it’s new kinetic sculpture and it’s now installed at the Hyde Park Art Center, for a group show opening Saturday, Aug 10, with a reception from 3-5pm.

2013-08-06 11.02.25 Red Ball Install

 

The show will also feature a 10 foot wide version of Red Rubber Bands (pictured below in smaller form). The new version looks AWESOME (and I’ll be sharing photos as soon as I get them).

RRB 1697 opp

Even more fun, Maker Camp interviewed me about the sculptures this week. (Also participating, circuit bender Patrick McCarthy.)

YouTube Preview Image

So, if you’re around Hyde Park tomorrow, please stop by the reception from 3-5pm. Or come check it out any time during normal gallery hours til September 21, when we’ll close the show with a public critique.

(If you’d like more info on my sculpture, check out my website.)

Cheers!

Jesse Seay

 

09

08 2013

Build a Light Theramin with Moldover this Saturday!

moldover_awesome_01_500

Hey musically inclinded members of hackerspace and surrounding community. Want to build something that you can put to use in two hours? Then come on by this Saturday (8.10.13) at 2pm for Build a Light Theramin with Moldover!

In this basic soldering workshop, Moldover will take you through the steps to build your own Light-Theremin CD case (http://www.youtube.com/watch?v=T8UzSVFUIc0). Even if you’ve never soldered before, this workshop will give you the confidence in two hours.  If you do have experience you’ll learn how to solder more efficiently, and walk away with a fun and unique instrument – plus a copy of Moldover’s latest album!

This workshop starts at 2pm, entry is free, open to the public, and the kit will cost $25 to purchase. Seats are limited to 20 so to reserve your spot hit up PS:One and Moldover on Twitter (@PumpingStation1 + @Moldover) or email me (the author of this post) @gmail.com.

08

08 2013

Raspberry Pi (Rob Bishop), Aug 6th @ PS1

Raspberry Pi

 

This upcoming Tuesday (August 6th) at 7pm, Rob Bishop from the Raspberry Pi team will be swinging by for a evening of nonstop Pi goodness! This event is free and open to the general public.

Rob Bishop was the FIRST technical employee at Raspberry Pi and is currently one of two full time software engineers. Alongside his engineering responsibilities, Rob also acts as an “evangelist” and works to promote the educational mission of the Foundation.

An engineer and evangelist for the Raspberry Pi Foundation, he’ll be presenting a talk entitled “Raspberry Pi – One Year On” that will cover both the origin story of the Raspberry Pi as well as outlining recent developments. The talk will present technical information about the Raspberry Pi alongside a discussion of the Foundation’s educational aims.

Following the presentation, there will be an opportunity for an in-depth Q&A on both educational and technical matters.

01

08 2013

PS:One Orientation twice this week: Sunday at 4pm and Wednesday at 7pm

Hammering glowing iron on an anvil

Photo by Mr. T in DC

PS:One orientation (previously known as N00bs’ Paradise) is happening twice this week: Sunday at 4pm and Wednesday at 7pm in the downstairs lounge.

Never been, but want to learn more about PS:One?
New member?
Old member, but want to know all the secrets of the inner workings of PS:One?
Want to get certified, but don’t know how?
Want to doocritize, but haven’t even heard of do-ocracy?
Then this event is FOR YOU!
Free, open to all event – just show up at 4pm on Sunday the 23rd or 7pm on Wednesday the 26th and we’ll take care of you.

You’ll learn:

  • the one and only rule you need to remember at PS:One!
  • what mailing lists and IRC channels you should join
  • how to get discounts on classes, tee-shirts, stuff around town, and even monthly dues!
  • how to get certified on equipment
  • how to donate equipment to PS:One
  • how to create a class, event, group, meeting, or what have you
  • how to request a class, event, group, whatever
  • how to blog
  • the wiki.
  • do-ocracy and how to do-ocratize things

The basics:

  • Who: anyone who wants to learn more about PS:One and how it works
  • When: Sunday June 23rd, 4 pm until about 6pm AND Wednesday, June 26th 7pm until about 9pm.
  • Where: PS:One 1st floor lounge
  • Cost: free

Here are the class notes – please feel free to read beforehand (Note: these notes are nota good substitute for class attendance).

20

06 2013

Math Office Hours, this Sunday from 5 to 7

Once again, x has gone missing. Help us find him!

Join us for an evening of math and learning. There’ll be spheres and equations and integrals, (oh my!). We’re open to anyone looking to brush up on basic skills and to those who want to learn a bit about advanced topics. We’ll be talking about set theory, topology, linear algebra, logic, geometry, and anything else that comes up.

All levels of math skill are welcome. Whether there’s something from grade school you never understood, or you’ve always been fascinated by something a bit beyond you, come and ask. Got a homework question? We can help! Working through a tricky problem for a project? We’ll think it through with you. Confused as to how anyone could ever like math? We’ll do our best to convey the elegance and beauty of the subject.

Show and Tell

At the start of this week’s Math Office Hours, we’ll be doing show and tell. If you have a math topic you’re interested in, come tell us about it.

Last week’s talks included:

  • Non-Euclidean Geometry, the discovery that Euclid’s ancient laws of geometry work just as well on a curved surface such as a saddle or a sphere if you reject the parallel postulate.
  • A proof that given two complex numbers, the magnitude of their product is the product of their magnitudes.
  • A Math Olympiad challenge: Given two primes p and q, show that 24 is a divisor of p^2 – q^2.
  • Manifolds, a basic example of charts and change-of-coordinate maps. The configuration space of a double pendulum as an example of a non-physical manifold.

Whos, Whens, and Wheres

  • Who – Anyone who wants to learn about math
  • Where – PS:One, second floor, in the electronics area
  • When – Sunday, June 23th, 5pm until 7pm
  • How much – Free

18

06 2013