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David Rowe: OpenRadio – a one day Software Defined Radio project

Tue, 2014-11-11 11:29

For the 2015 Linux Conference, I am working with Kim Hawtin and Mark Jessop on a 1 day Open Radio Mini-conference.

In this mini-conf a classroom of people will solder together their very own software defined radio (SDR) transceivers in just a few hours. It will be capable of receiving signals on the HF radio bands (3 to 30 MHz), and short range transmission of FSK/PSK data on the 13.5 and 27 MHz ISM bands (no license required).

The project is being documented on our OpenRadio Wiki. It’s completely open source and we have published the PCB CAD files, and the parts list with Digikey/Element14 catalogue part numbers. It’s based on the soft-rock radio designs.

We have put a lot of effort into making the radio easy to build. For example a minimum of (large footprint) surface mount parts, and a simple, fast to assemble design. We have intentionally included one or two inductors and transformers to wind to give people a taste of the complete radio assembly experience. With a little supervision, the project is quite suitable for radio/electronics beginners or school age children. It’s a “crystal set” for the 21st century.

Mark has done a great job designing the radio, and we have just received the prototype PCBs:

This week we will assemble and test the first prototypes, measure how long they take to build, and noting possible snags for inexperienced builders. Then our good friend Edwin from Dragino will prepare and ship kits for the mini-conf.

The resources we create for this project (wiki, CAD files, software, kits from Dragino) will remain available after LCA. So you, your radio club, hackerspace, or even school class will have access to an easy to build a Software Defined Radio (SDR).

linux.conf.au News: Speaker Feature: Fraser Tweedale, Peter Chubb

Tue, 2014-11-11 07:27
Fraser Tweedale FreeIPA: Open Source Identity Management

2:15pm Friday 16th January 2015

Fraser is a developer at Red Hat, where he works on the FreeIPA identity management solution and Dogtag Certificate System. He is passionate about security and privacy. In his spare time, Fraser writes a lot of Haskell and patiently awaits the strongly-typed functional programming revolution.

For more information on Fraser and his presentation, see here. You can follow his as @hackuador and don’t forget to mention #LCA2015.



Peter Chubb SD Cards and filesystems for Embedded Systems

2:15pm Friday 16th January 2015

Peter has been hacking on UNIX since 1979, and has never used Windows. He currently does system (kernel and low-level) programming in a Linux environment for NICTA.

Peter's research interests include operating system algorithms for scalability, including storage, scheduling, memory management, and locking. He is also interested in systems performance measurement and optimisation.

Related hobbies include music, photography and fine wines, these also occasionally lead to research.

For more information on Peter and his presentation, see here.

Andrew Pollock: [life] Day 285: Kindergarten and some tinkering

Mon, 2014-11-10 18:25

I've felt exceptionally flat today, despite having a good night's sleep. I'm blaming the heat, or treking around Saint Helena Island in the hot sun yesterday.

We biked to Kindergarten this morning for drop off, and I left the trailer there. I was feeling pretty flat just after biking there and back in the heat.

I'm trying to rig up something to bring to Kindergarten one day, which uses a Raspberry Pi and the MaKey MaKey. I spent the day fooling around with it, and not much else.

I biked back to Kindergarten to pick Zoe up. Zoe and Megan wanted to have a play date, and Jason had to run some errands, so we biked home, and he dropped Megan off.

The girls had a good time running amok, and I made a start on my first batch of fruit mince for mince pies of this Christmas season.

Jason came over to pick up Megan, and Sarah arrived not long afterwards.

Linux Users of Victoria (LUV) Announce: LUV Beginners November Meeting: Developing GUI applications

Mon, 2014-11-10 16:29
Start: Nov 15 2014 12:30 End: Nov 15 2014 16:30 Start: Nov 15 2014 12:30 End: Nov 15 2014 16:30 Location: 

RMIT Building 91, 110 Victoria Street, Carlton South

Link:  http://luv.asn.au/meetings/map

There are a few useful tools/IDEs available on Linux to develop GUI applications. They are all similar in features. In this talk Daniel Jitnah will briefly talk about how GUI applications work, and what are the toolkits available: GTK, QT and Tk as examples. He will also demonstrate how a very simple GUI application can be built. The IDEs used will be QTDesigner, Lazarus, Anjuta+Glade and Netbeans.

LUV would like to acknowledge Red Hat for their help in obtaining the Buzzard Lecture Theatre venue and VPAC for hosting.

Linux Users of Victoria Inc., is an incorporated association, registration number A0040056C.

November 15, 2014 - 12:30

read more

linux.conf.au News: Speaker Feature: Selena Deckelmann, Thomas Sprinkmeier

Mon, 2014-11-10 07:27
Selena Deckelmann What technical learners need

3:40pm Thursday 15th January 2015

Selena is a major contributor to PostgreSQL and a data architect at Mozilla. She is a director of the Python Software Foundation.

She's been involved with free and open source software since 1995 and began running conferences for PostgreSQL in 2007. In 2012, she founded PyLadiesPDX, a portland chapter of PyLadies. She founded Open Source Bridge, Postgres Open and speaks internationally about open source, databases and community. She also keeps chickens and gives a lot of technical talks.

For more information on Selena and her presentation, see here. You can follow her as @selenamarie and don’t forget to mention #LCA2015.



Thomas Sprinkmeier How to train your Minions

3:40pm Friday 16th January 2015

Thomas graduated from UniSA in 1992 as an Electronic Engineer where he was seduced by PC's early in first year.

He's been working as a Software Engineer ever since for Ebor Computing in a variety of projects, usually with heavy mathematical, signal processing and networking components, occasionally interfacing to the 'real world'. Most recently he has been working at making cars smarter an safer, on the assumption that this might be easier than upgrading drivers.

Thomas started embarassing his kids at school by taking over the class and teaching about things from pulleys to railguns, paper planes to robot programming, conducting playdough to tidal locks. Most recently he has been teaching on weekends about Raspberry Pi, Arduino and 3D printing.

For more information on Thomas and his presentation, see here.

Sridhar Dhanapalan: Twitter posts: 2014-11-03 to 2014-11-09

Mon, 2014-11-10 01:27