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431 discussions

DuckDuckGo can show resistor colour codes
by Sevan / Venture37 03 Jan '14

03 Jan '14

Just saw this on my twitter feed https://twitter.com/joewalnes/status/418830744241577984 eg https://duckduckgo.com/?q=4.7k+ohm Sevan

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[another job ad] Mavrx
by Ilya Dmitrichenko 18 Dec '13

18 Dec '13

Sorry if you find this being spam... but I think that it might be of interest to some! Mavrx is a next-generation data company using mapping and remote sensing to tackle some of today’s greatest global challenges. Our combination of hardware and online processing enables users to track and visualize what’s happening in their world in real time like never before. Mavrx will be field-trialing prototype hardware in the winelands of South Africa from January to March 2014, and will pay full expenses in South Africa and salary for the selected candidate. Full time employment will continue in San Francisco from April 2014 onwards. Mavrx is looking for a talented embedded software engineer to join our team. We are a fast-moving lean startup. The job description is fluid; the candidate must be flexible and ready to do what is required for the company to succeed! You’ll be ensured: competitive salary, full benefits, stock options, and an outstanding opportunity to grow with an execution focused, overachieving team of engineers. You will be responsible for the embedded software section of the stack. You will work directly with hardware engineers and back-end developers. A successful candidate will join us on our two-month trip to South Africa, so you must be willing and capable to travel, and be ready to get up to speed fast. Responsibilities: - Lead the development of embedded software - Take part in all aspects of development of an electronics product - Get your hands dirty field trialing your work and performing data analysis - Flying RC aircraft The candidate must have knowledge of/experience with: - Embedded C code - Register-level operation of microcontrollers - Interpreting schematics and chip datasheets - Diagnosing hardware problems in an embedded system - Designing and building digital circuits Please send the following to jobs(a)mavrx.co: - Your CV/resume - Examples of relevant previous projects, including those that you have done outside the scope of your education or employment. Full job description: https://docs.google.com/document/d/1WbJNuSkdNkLD8RGju8sizbsY8rScMQ9dxoUQ7Zh… Another job at Mavrx: https://docs.google.com/document/d/1xNfli5VePWN7yNSAoxej61NN7ygctorT1WyKrbL…

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Re: [oshug] Meetup theme: scripting MCUs
by Justin Cormack 18 Dec '13

18 Dec '13

> From: "Ilya Dmitrichenko" <errordeveloper(a)gmail.com> > Date: 6 Dec 2013 14:21 > Subject: [oshug] Meetup theme: scripting MCUs > To: "Open Source Hardware User Group Discussion List" <oshug(a)oshug.org> > Cc: > > So there these two projects (not sure if the authors are on the list): > > http://www.kickstarter.com/projects/214379695/micro-python-python-for-micro… > > http://www.kickstarter.com/projects/gfw/espruino-javascript-for-things > > We could probably find more speakers, but would be quite fun to see > these two fellas! > > Surprisingly, Gordon (who I have met) as well as Damien, are both > based in Cambridge, so it's probably not gonna be too hard to invite > them around. Hi, I would be happy to talk about eLua (I run the London Lua user group and have a couple of microcontroller boards that run it now). I don't know if there is anyone around who might want to talk about mruby. Justin

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Free Energy Efficiency Workshop: Bristol 16 January 2014
by Jeremy Bennett 18 Dec '13

18 Dec '13

Hi all, The Technology Strategy Board is running a workshop on energy efficiency tools in Bristol on 16 January, this is a free event aimed at anyone interested in the field: http://www.eventbrite.co.uk/e/energy-efficient-software-tools-workshop-tick… We'll be there with the new MAGEEC energy measurement boards (all free hardware design of course). Designed by Simon Hollis of Bristol University, these can sample energy usage up to 6 million times per second. It's a chance to bring along your own hardware and instrument it, or bring along your own software and try it on some standard boards. We'll have some ST Discovery (ARM) boards and Arduino/Shrimp boards to use if you'd rather not risk your own hardware. If you can't make it on the 16th, then there is a second chance to find out more about open source and energy efficiency, because we'll be re-running the workshop at FOSDEM as part of the energy efficiency dev room: https://fosdem.org/2014/ Hope to see you at one of these. Best wishes, Jeremy -- Tel: +44 (1590) 610184 Cell: +44 (7970) 676050 SkypeID: jeremybennett Twitter: @jeremypbennett Email: jeremy.bennett(a)embecosm.com Web: www.embecosm.com

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Wifi SD Card runs Linux
by Andy Bennett 14 Dec '13

14 Dec '13

Hi, This looks like a perfect platform for IoT things: https://twitter.com/iot_borat/status/411959286604906497 Regards, @ndy -- andyjpb(a)ashurst.eu.org http://www.ashurst.eu.org/ 0x7EBA75FF

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[job advert warning!] Boldport
by Saar Drimer 08 Dec '13

08 Dec '13

Hello everyone. I hope no one would be offended by this advert, but I wanted to get the word out there, and there is a strong connection to open source hardware ;) As some of you know, I run Boldport, where I create "beautifully functional circuits" and maintain the Python open source PCB design software, PCBmodE. (You may have seen some of my work at Wuthering Bytes and my OSHUG presentations.) I'm looking for someone to join me. The technical background isn't as critical as our ability to work together and that the person joining understands and is passionate about the vision for what we aim to achieve together. If there's a right match, there is an opportunity to join at a co-founder level. I have a somewhat generic job advert on Boldport's site: http://www.boldport.com/work.html Other information about the company, the work, the vision, and PCBmodE is here: http://boldport.com http://boldport.blogspot.com http://www.youtube.com/user/boldport http://bitbucket.org/boldport/pcbmode Thanks for your attention, and I look forward to hearing from anyone who is interested. Please forward this on to others if it's relevant to them. All the best, saar.

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Meetup theme: scripting MCUs
by Ilya Dmitrichenko 06 Dec '13

06 Dec '13

So there these two projects (not sure if the authors are on the list): http://www.kickstarter.com/projects/214379695/micro-python-python-for-micro… http://www.kickstarter.com/projects/gfw/espruino-javascript-for-things We could probably find more speakers, but would be quite fun to see these two fellas! Surprisingly, Gordon (who I have met) as well as Damien, are both based in Cambridge, so it's probably not gonna be too hard to invite them around. Cheers, -- Ilya

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Question to Londoners...
by Ilya Dmitrichenko 21 Nov '13

21 Nov '13

Hey, Would anyone by chance have an AVR JTAGICE mkII and would be willing to land it for the weekend? I have just ordered one, but it might take a while to arrive in the post... I promis a reward! Cheers :) -- Ilya

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S.London Makerspace - Make Day & Meeting 7th Dec
by Tom Newsom 19 Nov '13

19 Nov '13

Hi all, I'll be brief! We're setting up a new makerspace for South London, in a railway arch at Loughborough Junction. We're getting close to getting a move-in date from Network rail, but in the mean time, we're holding a series of Make Days, in order to build our community, work on our projects, share knowledge and discuss our plans for moving forward. The next meeting is on Saturday 7th, at the London College of Communications, Elephant & Castle. If you'd like to come and meet us and have a say, we'd love to see you there! For fire safety/security reasons, registration is required, which can be done at http://www.eventbrite.co.uk/e/make-day-december-2013-registration-9420752725 If you're at all interested in what we're up to, you can find out more at our blog: http://www.southlondonmakerspace.org/ facebook: https://www.facebook.com/SouthLondonMakerspace twitter: https://twitter.com/LDN_Makerspace Cheers, Tom Newsom Trustee, South London Makerspace

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OSHUG #30 — Speed (overclocking, souped-up BBC Micro, compiler optimisation), 28th November 2013.
by Andrew Back 08 Nov '13

08 Nov '13

Hello, Registration for the last OSHUG of 2013 is now open, and it looks like it's going to be a fun one! Cheers, Andrew // Event #30 — Speed (overclocking, souped-up BBC Micro, compiler optimisation) 28th November 2013, 18:00 - 20:00 at Erlang Solutions, New Loom House, 101 Back Church Lane, London, E1 1LU. Registration: http://oshug.org/event/30 The thirtieth OSHUG meeting is dedicated to the quest for computing speed. It will feature talks on a hardware design to aid overclocking, retrofitting a 30+ year old microcomputer with modern processors, and compiler optimisation. — Fast and Furious: Overclocking chips for fun and profit Due to the variance in silicon manufacturing technologies, integrated circuits used in everyday designs are usually spec'ed at lower speeds than their actual capabilities. It is, therefore, not unlikely for chips to run faster than their advertised speeds, sometimes at significant margins with a little push. The umbrella term used for this practice isoverclocking and it encapsulates a variety of techniques from simply increasing the clock speed to employing elaborate systems with liquid nitrogen cooling. This talk will provide an overview of overclocking and overvolting techniques — investigating the effects of forcing chips to run faster on the silicon level — and present vftweak: an open source hardware design that aims to simplify experimenting with circuits by providing a programmable interface and monitoring tools. Omer Kilic works on Erlang Embedded, a Knowledge Transfer Partnership project in collaboration with University of Kent and Erlang Solutions. The aim of this project is to bring the benefits of concurrent systems development using Erlang to the field of embedded systems; through investigation, analysis, software development and evaluation. Before joining Erlang Solutions, Omer was a research student in the Embedded Systems Lab at the University of Kent, working on a reconfigurable heterogeneous computing framework. Omer likes tiny computers, things that 'just work' and real beer. — Souping up the BBC Micro This talk will introduce a selection of projects which allow modern processors to be used with a 30+ year old BBC Micro, before exploring in more detail the speaker's own open hardware contribution to the options available. Jason Flynn creates open electronics designs for the amateur radio and retro computing. His main areas of interest are digital TV, microwave, satellite and most things related to Acorn and ARM. He previously held a post on the RSGB Data Communications Committee, is an honorary member of SSETI, has been committee of Martlesham Radio Society for 7 years, and is presently involved in setting up a hackspace in Ipswich. — How compiler optimisation helps you get the best out of your hardware This talk will give a high-level overview of compiler optimisation, covering general approaches used in both local and global optimisation, and also taking a look at the technique of superoptimization. The talk will conclude by looking at some of the 200+ optimisation passes used in GCC. The talk will be given by Jeremy Bennett, and he will be joined by Joern Rennecke and Simon Cook, who will take questions about optimisation in the compilers on which they are involved. Dr Jeremy Bennett is founder of Embecosm and an expert on debugging and silicon chip modeling. A former academic, Jeremy holds a MA and PhD from Cambridge University and is a Chartered Engineer, Chartered Information Technology Professional and Fellow of the Royal Society of Arts. He is the author of the standard textbook, "Introduction to Compiling Techniques" (McGraw-Hill 1990, 1996, 2003). Simon Cook leads Embecosm's work on LLVM and is author of the standard guide to the LLVM assembler. He is also an expert on low-energy compilation, being lead engineer on the MAGEEC project. Simon holds a double first class honors degree in Computer Science and Electronics from Bristol University. Jörn Rennecke is an expert on compiler back-end optimization and also leads Embecosm's work on GCC. Over 18 years he has become one of the all-time largest contributors to the compiler. During 2006-9, Jörn was a major contributor to the EU-funded MILEPOST project, which developed the first machine learning compiler optimization framework. He is currently maintainer for GCC for the Epiphany and Synopsys ARC architectures and a major contributor to GCC for Atmel AVR. Note: Please aim to arrive for 18:15 as the event will start at 18:30 prompt.

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