Archive for the ‘Announcements’Category

NERP June 23rd – BeagleBoard Project co-founder Jason Kridner

BeagleBoardCompliantLowRes

NERP June 23rd – BeagleBoard Project co-founder Jason Kridner

NERP is Not Exclusively Raspberry Pi, the small computer 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.

Jason Kridner, BeagleBoard project co-founder, community manager, and software cat herder will speak at NERP on June 23. His topics will be “JavaScript on BeagleBone” and “Real-time programming with BeagleBone PRUs”. As part of his job at Texas Instruments, Jason provides support and development of the BeagleBoard.org project. He is also a member of hackerspace i3 Detroit.

The BeagleBone Black is the most recent in a series of single board Linux computers created by the folks behind BeagleBone.org http://beaglebone.org. The BeagleBone is designed for educators, designers, makers, and hackers. The BoneScript language, based on JavaScript, reaches out to Web software developers who want to get out of the box. Being a Linux (plus Android and others) computer, the BBB natively runs Python, C++, and the usual suspects. There is also a growing ecosystem of hardware add-on “capes” that shield the user from the complexity of developing interface devices.

Some quick specs on the BeagleBone Black rev C : Technology: Texas Instruments Sitara® 32-bit ARM core cpu @ 1GHz, 512MB SDRAM, accelerated HDMI, Ethernet, USB, 69 (max) GPIO, and a host of i/o peripherals directly accessible from onboard headers. Dim 3.4”x2.1”, weight 1.4 oz., Debian Linux pre-installed, Price $55. Availability: everywhere. Element14 is a good place to look http://www.element14.com/community/docs/DOC-54121?ICID=knode-beagleboneblack-space/

PLEASE NOTE: For this special NERP, we will keep introductions short and start promptly at 7pm. Please use the meetup (below) to confirm your attendance!

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

Doors open at 6:30pm. The next meeting is June 23rd, 2014.
NERP is free and open to the public.

Ed Bennett ed @ kinetics and electronics com

Tags: electronics, embedded, NERP, Open Source, raspberry pi,hackerspace, BeagleBone, Element14, Pumping Station One

19

06 2014

Special CNC Build Club – Linux CNC on Beaglebone

CharlesSteinkuehler

Charles Steinkuehle, the guy behind the Machinekit port of Linux CNC to the Beaglebone microcontroller is going to be in town Thursday 6/26/2014, so we are going to have a special edition of the CNC build club.  Special features on the Beaglebone make it the first general use microcontroller to be able to effectively run Linux CNC.

bbb_cnc

 

He will be showing off his new CRAMPS (Cape RAMPS) board.  This is a cape for the Beaglebone that all all the periferals you would need for a CNC machine or 3D printer

 

cramps

 

 

We have featured LinuxCNC on Beaglebone at a few other CNC Build Club events, so it is great to have Charles stop by:

When: Thursday, June 26th 2014 at 7:00pm

Where: Pumping Station One, Electronics Lab

Who Can Come: Members and Non-Members….Please RSVP Here

 

16

06 2014

Demo Day: Ancona Edition

Soldering kidHello everyone! You know those demonstration days we did for the library a month or so back? Well, Elizabeth and I thought it’d be a good idea to reach out to the school where we teach the after school Maker class and do the same. We thought that having an open demonstration for parents, kids, and faculty would be a great idea to cultivate our image as a valuable educational resource for kids and adults alike.

We want to showcase the value of Maker culture and skills in the development of kids in gradeschool. We want to be entertaining, so we plan on doing the Learn to Solder kits, Laser cutter demo, possibly some 3D printing demos, and the like. If anyone has any demonstrations that would be appropriate for kids, and would like to help out by hosting that demonstration, please come.  And if you just want to be there and mingle with the parents, maybe bring your own kids, show them what our community means, and what it means to your kids, please come.
The event is Sunday, June 8th, from 2-4pm, at Pumping Station: One.

30

05 2014

U Can Has BeagleBone Black (but only one).

 BeagleBoard_Boris_Tux

NERP is not exclusively Raspberry Pi, the small computer 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.

The BeagleBone Black is a small single board computer in the same vein as the Raspberry Pi. The two boards are similar in appearance and composition but different in style. Both boards are based on 32-bit ARM-based processors. The Beagle’s is more recent and faster. The RPi is designed as a teaching platform that happens to have very nice graphics and video, but not much i/o. The Beagle’s graphics are wanting, but it has tons of i/o on the board. The Pi is more polished than the Beagle, in that what’s supposed to work usually does. The Beagle is more suited (for the moment) to dirty-fingernails hackers who enjoy hardware for its own sake.

One thing the two boards have in common is that their first manufacturing runs sold out quickly. It’s been weeks since there were any BeagleBone Blacks to be had for sale. (People have been hoarding them as OEM parts for their startup projects.) In the last few days, BeagleBone Blacks have been trickling out of CircuitCo’s production line. There are about 47,600 boards in the pipe, but you’re allowed to buy only one. http://specialcomp.com/beaglebone/ has them now for $45.00 each.

It’s time to give the BeagleBone Black another look at NERP.

Tonight we’ll go over some of the getting started routine, and have a peek under the hood of the Bonescript, the Beagle’s Arduino-like programming environment built on Node.js.

It’s time to give the BeagleBone Black another look at NERP.

Tonight we’ll go over some of the getting started routine, and have a peek under the hood of the Bonescript, the Beagle’s Arduino-like programming environment built on Node.js.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/
Doors open at 6:30pm. The next meeting is April28th, 2014. 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 Station One

 

 

28

04 2014

Mini Maker Faire in Chicago at Schurz High School – May 3

Reserve your spot to the third annual Chicago Northside Mini Maker Faire! Tickets are FREE to the public, but by reserving early you guarantee your spot. Now you can e-sign the media release on Eventbrite and skip the line! As always, your generous donations allow those who cannot otherwise afford Maker Faire to attend for free. Recommended donations are $10/adult, and $5/child under 12.

http://www.eventbrite.com/e/chicago-northside-mini-maker-faire-2014-tickets-10903088431

Pumping Station: One will hopefully be there with a table. Come visit us!

 

–Derek

10

04 2014

Tonight at NERP: Drew demonstrates Software Defined Radio

NERP is not exclusively Raspberry Pi, the small computer 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.
radio-1
Software Defined Radio is a set of techniques for generating modulated RF waveforms in a transmitter, and demodulating the waveforms in a receiver. In traditional radio transmitters, the broadcast carrier waveform is generated in resonating analog circuits. The carrier is subsequently modulated in a specific way to encode information onto the carrier waveform. There are several distinct methods for doing the encoding and modulation. At the receiver the modulated carrier is received, amplified, and decoded to extract the transmitted information. Analog circuits are bulky. They could never fit in a cell phone, for instance. Worse, a specific analog circuit can operate over a very narrow range of frequencies (a “band”) and the modulation/demodulation method is inflexibly determined by the circuit topology.

Software defined radio allows the radio hardware to generate the physical carrier frequency and modulation format by algorithmic synthesis. Until recently, open (or open-ish) hardware capable of doing the waveform generation math in real time was not available at an affordable price. This has changed. Tonight at NERP, Drew Fustini will demo Aafruit’s “Software Defined Radio USB Stick” receiver. From the product description on the Adafruit site, the little radio does some absolutely amazing things. Software is eating the world, and radio is on the menu.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/
Doors open at 6:30pm. The next meeting is March 3rd, 2014. 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, Software defined Radio Pumping Station One

31

03 2014

International Tabletop Day 2014

International tabletop day

International Tabletop Day

Want to hang out with a group of fun geeky people at a Hackerspace and play some awesome games? How about homemade snacks and homebrew beer? Still not awesome enough for you? Well, how about we hack an Xbox Kinect and scan you, then 3D print a custom game piece with your face on it, or make custom game counters on a laser cutter?

Come on by Pumping Station: One, Chicago’s biggest Hackerspace, on April 5th and have some fun and maybe even learn a few skills! Bring your favorite games, or if you want some supreme geeky-points, bring a game you designed and play-test it with us [we can even discuss how to spruce-up your game with lasercut or 3D printed pieces, hint-hint]!

This event is public, so bring your family, friends, or just awesome gamers you know and wanna hang out with! If you want to take part in making the 3D printed game pieces, or laser cutting custom counters, we do ask for a minimum of $1 suggested donation to cover materials. If you want to see this stuff continue into the future, please donate more! Proceeds will go to Pumping Station: One’s donation box.

31

03 2014

NERP: Playing with the BeagleBone Black

NERP is not exclusively Raspberry Pi, the small computer 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.

Tonight at NERP, we’ll be playing with the BeagleBone Black. We’ll compare the look and feel of an original Angstrom Linux install with a fresh Debian Wheesy install. Beagles and their kin are complicated little devices, and there’s lots to see and try out (and fix) for a newbie user. We’ll sniff around the Beagle install and hardware just to pick up some landmarks for future projects and ideas.

 

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/
Doors open at 6:30pm. The next meeting is March 17th, 2014. 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 Station One

 

17

03 2014

NERP: At Last — A JavaScript MCU!

NERP: At Last — A JavaScript MCU!

NERP is not exclusively Raspberry Pi, the small computer 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.

It was time, perhaps past time for a JavaSscript microcontroller to appear. Tonight Drew Fustini will show us a high-level overview of the Espruino. The Espruino controller board is just emerging from Kickstarter and can be ordered through one of their distributors. http://www.espruino.com/
Lots of people know JavaScript and its programming environment, and many of those people could be convinced to try their hand at using a microcontroller if they could use their preferred programming language – in a Web IDE. This is important stuff, but the really striking thing is that event-driven processes are now in easy reach of people who need the capability but don’t want to learn a real time operating system. A very common question people in their first hour of Arduino programming will ask is “Now how do I blink two LED’s?”. Having spent a lot of time teaching Arduino 101, I can say that it’s always an awkward moment when you say “Well, you can, but it’s really involved”. JavaScript combined with a bit of Arduino vernacular solves the problem in a way that might be expected in an event-driven system. It’s wonderfully short and simple. Snagged and slightly edited from the espruio.com site:

function toggle1() {
on1 = !on1;
digitalWrite(LED1, on1);
}

function toggle2() {
on2 = !on2;
digitalWrite(LED2, on2);
}

setInterval(toggle1, 400);
setInterval(toggle2, 456);

Each time you called setInterval(), it returned a different number. If you want to change how fast the interval runs (or cancel it altogether) you need to use this number:
changeInterval(1,1000);
or
clearInterval(1);
[end quote]

Almost predictably the CPU is an ARM M-series like so many other of the 32-bit MCU convenience platforms. For instance an M3 type is used in the Espruino and an M4 type is used in the Teensy 3.1. It is unclear to me whether portability of code will carry across different chip makers, but the M3 vs M4 difference per se may not matter. From Element14's community site:

...most features of the Cortex-M3 and M4 are the same with the significant difference that Cortex-M4 has DSP extensions and an optional FPU. There is nearly no need for modification of hardware and software to migrate from M3 to M4. [http://www.element14.com/community/docs/DOC-36208/l/migrating-from-cortex-m3-to-cortex-m4-by-element14 ]


Like the relationship between the Arduino and the ATMega MCU’s from Atmel, there is an Espruino board and Espruino libraries. Also similarly, the libraries are open source and theoretically portable to other boards using the same or similar chip. Some possibilities labeled as “unsupported” are listed on the Espruino site.
Will it become common to pick your ARM board and then pick your development system?

–----------

Also tonight, Ed will talk about some of the issues in making a clock that uses a funky, antique digital display called a “one-plane readout”.

Find NERP and Pumping Station:One
at http://www.meetup.com/NERP-Not-Exclusively-Raspberry-Pi/
and http://pumpingstationone.org/
Doors open at 6:30pm. The next meeting is March 3rd, 2014. 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 Station One

03

03 2014

Bike Night – Fixing bikes in February

Hello everyone!  It’s been cold.  It’s been snowy.  But some of you people are still riding your bicycles.  Being cold and snowy doesn’t stop the need for maintenance.  Every other week is Bike Night at PS:1, and we’ve got our doors open for you.

Sometimes we bring in things to show off.  Sometimes we teach.  Usually we work on interesting bike projects.  (Learning how to wrap bars, building a bike from the frame up, etc) Last night was playing bike doctor more than “here’s fun stuff to work on.”  We had two patients last night.

Bike maintenance at PumpingStation

Bike maintenance at PumpingStation: One

 

 

 

 

 

 

 

Patient #1 received a new chain and sprockets to replace a stretched set.  And, the rider discovered the magic of clipless pedals last year, so replaced his platforms with some SPD pedals.

Patient #2 had some cheesy short term replacement pedals replaced with some very nice platforms, and had it’s headset rebuilt.

Does your bike need a tuneup?  Do you have questions about picking a new bike this spring?  Do you want to learn a new bicycle related skill?  Come visit us, we’ll be gathering in the shop March 5 at 7PM.

-Nerobro

20

02 2014