Getting Started with Raspberry Pi (review)

O'Reilly (via Make:Magazine.com) have published Getting Started with Raspberry Pi the $35 ARM power Linux computer from the Raspberry Pi Foundation.

The book is 10 chapters with 3 appendices.

• Chapter 1 - Getting Up and Running
• Chapter 2 - Getting Around Linux on the Raspberry Pi
• Chapter 3 - Python On The Pi
• Chapter 4 - Animation and Multimedia in Python
• Chapter 5 - Scratch on the Pi
• Chapter 6 - Arduino and the Pi
• Chapter 7 - Basic Input and Output
• Chapter 8 - Programming Inputs and Outputs with Python
• Chapter 9 - Working with Webcams
• Chapter 10 - Python and the Internet
• Appendix A - Writing an SD Card Image
• Appendix B - Astral Trespassers Complete
• Appendix C - Analog Input

Though it's a "Getting Started" book, it quickly gets difficult for non-technical users and very quickly loses them. The first few chapters are helpful and allow people to get a Raspberry Pi up and get started with it, though some essential information (like getting the operating system on to an SD card) is in the appendices which would have probably better been placed in the first chapter.

Someone who has programming knowledge will find the book useful as they should be able to get to grips with the environment reasonably quickly (it is Linux), but it should maybe have been split into 2 books or a just into 2 major sections, one really for beginners and then an advanced user section.

The book is available in paper or via O'Reilly's Safari store, it's also available on Valobox.

Nominet ditches direct.uk plans

Nominet is the registry for the .uk country domain. They had wanted to offer domains directly under .uk rather than the existing .co.uk, .org.uk subdomains.

As well as proposing some sensible policies (like only supporting DNSSEC the secure version of the domain name protocols) others didn't go down so well, so Nominet is re-thinking the their policies and will offer ;-

• A revised phased release mechanism based lrgely on the prior registrations of domains in existing third levels within .uk and in which contention between different applicants for the same domain name should be reduced or eliminated.
• Measures to improve security across the whole of the .uk namespace. This would include increased focus on encouraging the adoption of DNSSEC.
• A firm focus on registrant verification and some form of UK presence.
• Further investigations into the impact on the SME sector.
• An appropriate pricing model.

Which will be reviewed at the June board meeting.

If the new direct.uk system is implemented, Nominet have still committed to supporting the existing .co.uk space.

Digia announces enhanced BB10 support for Qt

Digia, the company that acquired Qt from Nokia has announced enhanced support the Blackberry's new Blackberry 10 operating system.

Qt is a framework that works across many platforms (both desktop and mobile) and allows developers to use the same front-end code which will work across all the supported platforms and Qt is used in Blackberry's Cascade framework which is used to develop native Blackberry applications.

Digia maintains the commercial version of Qt and also the open source version that is available from the Qt Project which is where any Blackberry enhancements are upstreamed to.

Ofcom consults on Short Range Devices

Ofcom has decided that short range devices (SRDs) should move from the band 10.675 to 10.699 GHz to 10.575 to 10.6 GHz in line the frequency allocation policy.

This new band will be made license exempt, but that requires a change to the Wireless Telegraphy Act which Ofcom is progressing.

The band was extended after the 2nd consultation (the 10.5GHz band consultation) as respondents complained there was not enough bandwidth in the proposed 10.577 to 10.597 GHz band and Ofcom has now extended this band.

No new SRDs will be allowed to operate in the existing band.

Ofcom will issue a consultation on the proposed regulations shortly.

The full statement can be found here as a PDF.

Euro Tech News goes live on Blackberry World

This blog can now be read in an app on Blackberry devices (on OS7 or BB10), it works both on smartphones and the Playbook and it's available on Blackberry World.

Developing an app for Blackberrys is notably hard, but Blackberry have come to the rescue with Blackberry App Generator (actually developed by Mippin) which does all the hard work for you. No code required, but there is a bit of work getting logos and icons in the right size. In the app generator just specify the feeds (it works with ATOM and RSS) and the app is built for you.

There are a few hoops to go through, initially a Blackberry Vendor ID is required (free sign-up, but company documents are needed as proof) from Blackberry Vendor Portal and that takes a while. Once the app is built, it needs to be approved, which can take a few weeks. Once approval is gained, the app must be published through the vendor portal and it's put into the app stores which can take up to 24h.

Though it's a nice feature and easily allows a website with news feeds to easily convert them into an app, could it be that Blackberry is just using this to swell the number of apps in Blackberry World?

It's really a 'no brainer' for anyone with a website that has regular updates presented as a feed and wants their own app.

Ofcom announces 4G frequencies awards

Ofcom, the super regulator today announced the awards (and subsequent prices) for the 4G spectrum awards. Everything Everywhere Ltd, Hutchison 3G UK Ltd and Telefónica UK Ltd (O2) did not have to pay anything following the original auction and awarding of their spectrum.

Niche Spectrum Ventures Limited (a subsidiary of BT Group plc) paid £15,061,179 to be allocated the spectrum bands 2,520 to 2,535 MHz and 2,640 to 2,655 MHz.

Vodafone Limited has paid £8,060,020 to be allocated the spectrum bands 801 to 811 MHz and 842 to 852 MHz, and an additional £4,039,123 to be allocated the spectrum bands 2,500 to 2,520 MHz and 2,620 to 2,640 MHz.

O2 was awarded 811 to 821 MHz and 852 to 862 MHz in the 4G spectrum award and has an obligation to cover 98% of the UK population by 2017.

The original auction raised £2,341,113,000 for the UK Treasury, this additional bidding has raised an extra £27,160,322 bringing the total raised to £2,368,273,322 for the UK coffers.

The licenses are now free to deploy 4G (LTE) services on these bands.

Last week Ofcom announced the winning bidders for 4G spectrum and amounts bid for it.

Everything Everywhere Ltd	2 x 5 MHz of 800 MHz and 2 x 35 MHz of 2.6 GHz	£588,876,000
Hutchison 3G UK Ltd	2 x 5 MHz of 800 MHz	£225,000,000
Niche Spectrum Ventures	2 x 15 MHz of 2.6 GHz and 1 x 20 MHz of 2.6 GHz (unpaired)	£186,476,000
Telefónica UK Ltd	2 x 10 MHz of 800 MHz (coverage obligation lot)	£550,000,000
Vodafone Ltd	2 x 10 MHz of 800 MHz, 2 x 20 MHz of 2.6 GHz and 1 x 25 MHz of 2.6 GHz (unpaired)	£790,761,000

CADScan launches affordable 3D scanner

CADScan has launched a project on Kickstarter to produce an affordable 3D scanner, which can scan 3D objects into an electronic format suitable for 3D printing.

The aim is to produce the scanner for £650 ($1,000) which puts it into the realm of companies and serious home users allowing objects sized up to 25cm x 25cm x 25cm (10" x 10" x 10") to be scanned.

With the combination of affordable 3D printers, it will now be possible to duplicate objects for under $2,000 which also brings interesting thoughts on affordable piracy of objects.

CADScan is based in Chester in the UK.

Sky buys O2 Broadband

BSkyB the media giant has agreed to acquire O2/Telefonica's O2 broadband service (this also includes the Be broadband service that O2 originally acquired to launch their broadband services). Sky will initially pay Telefonica £180m followed by another £20m following the successful migration of the customer base.

O2/Be have 560,100 broadband customers which added to Sky's 4,235,000 customers gives them 4,795,100 customers and pushes Sky into 2nd place in the UK broadband market following BT Retail with 6,569,000 and putting VirginMedia into 3rd place with 4,465,000.

The acquisition also covers O2's fixed line telephony unit and will increase Sky's consumer offering.

Though there is overlap in terms of infrastructure, O2's network will be migrated on to Sky's existing network - though it's likely there will be some exchanges that O2 have unbundled that Sky haven't - which means Sky's LLU (local loop unbundled) network will grow slightly as they move into those exchanges.

Sky will maintain O2's LLU offering (i.e. wholesale broadband service offered to other operators), but O2's LLU business will be migrated on to Sky's network. This should be a 'good thing' as O2's network reach will increase as they get access to Sky's unbundled exchanges, however some operators are worried that the quality of the underlying network will decrease and thus the customer experience may deteriorate.

The deal still has to get regulatory approval, but assuming there are no objections it should complete by April.

The added cash (which cant hurt as Telefonica/O2 has just spend a chunk on buying 800MHz spectrum in the recent 4G spectrum auctions) will be used to accelerate the rollout of 4G services.

Neul introduce witespace single chip solution

Neul, the spin off from Cambridge Silicon Radio (CSR), today announced a single chip solution for whitespace use based on their weightless standard.

The ASIC known as Iceni works across the whole UHF band (470 – 790MHz) and is easy to interface to micro-controllers and CPUs such as the ARM M3 making it ideal for M2M solutions. The chip is also small, low power and low temperature.

It can operate using both 6 or 8 MHz channels and uses daptive digital modulation schemes and error correction methods can be selected according to the trade-off between data rate and range required for a given application as well as supporting over-the-air encryption. The chip also supports programmable IO allowing it to control external parts of the solution including the RF stage and thus the transmit power (which is essential to meet any local regulations).

Neul currently dominate the whitespace arena and the technology is well suited to M2M applications - probably more sure than cellular based systems using 2G or 3G. The Neul solution can support thousands (if not more) end points and support large distances between devices (the greater the distance, the lower the bandwidth, but this generally isn't an issue for M2M installations).

Neul are conducting trials in the UK as well as other countries, however although Ofcom has made whitespace devices license exempt, it mandates a central database that contains geo-information about locations, frequencies supported and power levels. Unfortunately Ofcom have not yet implemented the central database solution.

Ofcom allows high power PMSE devices

Ofcom, the Super Regulator that deals with radio and broadcasting (amongst other things) has published a statement on the use of high power devices for Program making and special events (PMSE).

Before the digital switchover devices such as radio mikes and other PMSE devices could use channel 69 (which lies in 800MHz) and their licenses expired at the end of 2012. However Ofcom is continuing to allow their use until this spectrum is awarded to a new licensee after the current 800MHz and 2.6GHz spectrum auctions end (the award is expect by March 2013).

Ofcom allocated channel 38 for PMSE devices (606 - 614 MHz), but only for low power devices (under 50mW EIRP), now Ofcom is also allowing higher power devices (up 10 10W EIRP) to operate in the lower 2 channels (within channel 38), i.e. 606.7 MHz and 607 MHz.

Most PMSE is low power use (such as radio mikes), however outdoor events such as golf or other sporting activities can use higher power. Ofcom has performed a risk analysis and found that the possibility of interference with other low power devices (which can use another channel) or neighbouring services is minimal.

The statement is available here and stakeholders can respond on-line.

Ofcom proposes new DTT multiplex in 600MHz

Ofcom the super regulator that covers many operations including broadcasting and spectrum allocations is proposing to open up the 600MHz band for Digital Terrestrial Television (DTT) broadcasts. The 600MHz band is actually made up of frequencies from 550-606 MHz in 8MHz channels (known as channels 31 to 37). This band was cleared when the analogue transmission services were switched off.

The new DTT service will utilise DVB-T2 and MPEG4 which allows more spectral efficiencies than older DVB-T technology and MPEG4 compresses video more efficiently than MPEG2 which current non-DS DTT services use. Program making and special events (PMSE) services will still be allowed to reside in the band as will whitespace technology (this uses localised unused spectrum to offer wireless broadband/communication services).

Ofcom is acting in accordance with EU spectrum policy, whereby the current DTT services which operate in 700MHz should move to the 600MHz band and 700MHz will be used for wireless broadband services, though migration will not happen before 2018.

Thopugh this is a proactive mode for Ofcom, many set-top boxes built for DTT will not operate in 600MHz and new systems will have to be purchased.

Ofcom is proposing to make the license available immediately at a cost of £180,000 with a minimum period until 2018 but with a 12 month notice period so Ofcom can migrate current services into this band.

The consultation is available here and interested stakeholders may respond on-line.

Ofcom proposes to allow 4G on all 2G and 3G bands

Ofcom, the Super regulator, has opened a consultation to allow the liberalisation of all existing 2G and 3G bands so they can also be used for 4G (LTE) services.

This would mean O2 and Vodafone can refarm both their 900MHz 2G spectrum and their 2.1GHz 3G spectrum, EE (the combined entity of Orange and T-Mobile) have already started refarming of their 1800MHz spectrum, but they will be allowed to also refarm their 2.1GHz 3G spectrum. 3UK only have (currently) 2.1GHz 3G spectrum but will be able to refarm this and when EE transfer around 25% of their 1800MHz spectrum to 3UK they will also be allowed to use this for 4G (though this is not expected to happen until September 2013).

This is separate from any spectrum that is currently being auctioned (800MHz and 2.6GHz) though Ofcom has not yet announced who is bidding for what spectrum.

3UK have announced that when they launch 4G services, they will not differentiate on price between 4G and 3G services. The consultation is available here and interested stakeholders can respond on-line.

Digia releases Qt 5.0

Digia the company that has taken over the development of Qt (from Nokia) has released version 5.0 of the toolkit. This maintains compatibility with Qt 4.

Qt 5 benefits include:

• graphics quality
• performance on constrained hardware
• cross-platform portability
• support for C++11
• HTML5 support with QtWebKit 2
• a vastly improved QML engine with new APIs

Qt 5 also supports OpenGL ES (the version of Open GL that is optimised for embedded systems).

Qt supports a wide range of operating systems including Windows, Mac OS X and Linux, embedded operating systems such as embedded Linux, Windows Embedded as well as the most widely deployed real-time operating systems for embedded devices – VxWorks, Neutrino and INTEGRITY – and popular mobile OSes.

Digia is maintaining 2 versions of Qt, the commercial version and a 30 day free trial is available from qt.digia.com and the open source version from qt-project.org.

Ofcom announces bidders for 800MHz and 2.6GHz auctions

Ofcom the super regulator that covers amongst other things radio spectrum has announced the bidders that have been accepted for the 800MHz and 2.6GHz spectrum auctions (a total of 250MHz is being made available). The details of who is bidding for what has not been made available.

Each of the following paid a £100,000 deposit and the actual auction will take place in early 2013.

• Everything Everywhere Limited (UK)
• HKT (UK) Company Limited (a subsidiary of PCCW Limited)
• Hutchison 3G UK Limited
• MLL Telecom Ltd
• Niche Spectrum Ventures Limited (a subsidiary of BT Group plc)
• Telefónica UK Limited
• Vodafone Limited

The four existing mobile network operators (MNOs) EE, 3UK, O2 (Telefonica) and Vodafone were expected to bid and will probably bid for the 800MHz spectrum.

BT was a preferred outsider and will probably be bidding for 2.6GHz spectrum.

HKT's parent PCCW already has a nationwide 3.4GHz license (but it's a weird LTE band) but they have launched an LTE-TD wholesale service in the London area, so they may well bid for 2.6GHz spectrum as at least this is a common worldwide LTE band.

MLL already have a low power GSM license and also will probably have bid for a 2.6GHz license, especially as they are developing their own LTE stack (via a 3rd party).

Next year Ofcom will announce which bidders bid for what spectrum.

Ofcom updates GC17

Ofcom the super regulator has published a statement on General Condition 17 (GC17) which relates to the UK numbering plan and telephone number allocations.

The statement just cleans-up the old GC17 as this was published over 10 years ago prior to Ofcom coming into being and though still relevant things have changed since Ofcom took over the role previously maintained by Oftel.

The statement provides the following modifications to the Numbering Plan and GC17: create a single reference point for CPs and other stakeholders in relation to number ranges and related restrictions;

• simplify the provisions relating to compliance with the Numbering Plan and other restrictions on the adoption or use of numbers
• improve the clarity of the Numbering Plan, and remove unnecessary duplication; ensure consistent reflection of current numbering policy across GC17 and the Numbering Plan
• make other minor drafting amendments such as deleting obsolete or redundant text, removing duplication and correcting textual and typographical errors.

This will also affect number allocation forms to correspond to the changes.

Ofcom consults on whitespace use

Ofcom the Super regulator has published a consultation on the use of whitespace frequencies.

Whitespace is radio spectrum (generally in the Digital Terrestrial Television [DTT] and Program Making and Special Events [PMSE] bands) in the UHF TV bands (470MHz to 790MHz) that isn't used in a particular area. This is because adjacent TV transmitters cant use the same radio frequencies, so there are geographic areas where certain spectrum is available, but those frequencies will be used elsewhere in the UK.

As certain frequencies are available in certain areas, these could be used (in lower power) by other devices such that they wont interfere with their use in neighbouring areas. In order for that to work, the devices (or central transmitter) will have to know where it is and how much power it can transmit and on what frequencies such that interference wont occur.

There are various uses for whitespace spectrum such as rural broadband or hotspot connectivity. Here the central transmitter would have to query the central database and CPE equipment would get transmit power and frequency use from the central transmitter.

Whitespace could also be used for in-home or M2M applications and in this case the central router (which would be connected to the Internet) would make the database queries and the rest of the in-home/M2M equipment would get the power/frequency information from the central router.

Ofcom is proposing making whitespace devices license except, though they will have to contact a central database and pass back their location and thus be given allowable frequencies and their power constraints.

As part of the consultation Ofcom has specified the types of queries and responses, but not how they're implemented as this would be down to the market to implement.

The full statement (PDF) is available on-line and the stakeholders can also respond on-line. The consultation closes on the 10 January 2013.

Ofcom starts 800MHz and 2.6GHz auction race

Ofcom, the Super regulator that looks after radio spectrum (amongst others) has today released guidance for applicants and bidders PDF) and application forms for the 800MHz and 2.6GHz spectrum auctions.

These are similar to recent other spectrum auctions and all applications must be received by Ofcom by December 11th 2012 and at the same time Ofcom must have received a £100,000.00 deposit (which is refundable if the bidder doesn't win or withdraws from the auction within the withdrawal timeframe).

Ofcom will have some time to ensure the validity of the application and applicant (they must pass tests to ensure they are valid applicants).

On the 2nd dat Ofcom will tell all bidders of other bidders in their group.

Ofcom then allow 4 days for bidders to notify Ofcom on any group overlaps.

Ofcom then has 3 days to notify successfully qualified bidders, publish them on the Ofcom website and notify them of the last day for withdrawal.

The last day for withdrawal is 2 days following publication.

Ofcom will then publish the list of actual bidders.

Ofcom will use an electronic bidding system which allows bids to be submitted in rounds (this all gets very complicated, especially when an additional opt-in round is added to the process). Ofcom will train bidders on the use of the electronic voting system.

It's expected that at least O2 and Vodafone will bid for the 800MHz spectrum, though 3UK may join in too as they don't have any sub 1GHz spectrum at present. The 2.6GHz spectrum (especially low power licenses) may be more of a jamboree with some unexpected players joining in.

Ofcom to move DTT from 700MHz to 600MHz

Ofcom, the Super Regulator, is proposing to clear the current Digital Terrestrial Television (DTT) band at 700MHz and move it to the 600MHz band that was cleared during the digital switchover. This is not going to be a quick process and Ofcom are proposing a 2018 switch-over date.

This is in-line with both EU and International harmonised spectrum policy.

The 700MHz band is already used for wireless broadband in countries such as North America and the EU also wishes to move in this direction to cope with future broadband spectrum requirements (the band could be used for LTE or other wireless broadband technologies). The 800MHz band is already being freed (as part of the digital switchover) and is being auctioned in early December 2012 and should be available in March 2013 and it is assumed the licensees will operate LTE services in the 2 bands being auctioned.

In order to move DTT services, it will be necessary to ensure maximum spectral efficiency and thus it's likely DTT MUX's will all have to migrate to DVB-T2 and MPEG-4 (as is used by Freeview HD) which may affect end-users as they will have to ensure they have the correct systems to receive these transmissions.

Ofcom are also keen to promote innovative new services such as White Space Devices (WSD) as these can use parts of the spectrum that aren't being used for DTT services (this is mainly due to overlapping DTT regions that have to use different frequency sets and thus there are areas of spectrum that are left empty in one area so as not to interfere with neighbouring areas). The 'white spaces' are perfectly usable for controlled transmissions that wont interfere with neighbouring areas, but can provide spectrum for broadband. WSDs will need to contact a central database, both to ensure that they are only using allowable frequencies and also Ofcom may enforce a kill switch to ensure that if interference does occur, that the devices can be remotely disabled.

Currently trials of WSDs are taking place in the 700MHz band.

Though 2018 seems a long way away, it took a huge amount of effort to ensure the current digital switchover could take place and it seems that this is really a second digital switchover (though DTT services already operate in the lower 600MHz band so new equipment and transmitters/etc shouldn't be required).

Zapd 2.0 goes live

What is Zapd? Well it's a hugely powerful mobile website builder, but usable by anyone and creates really professional looking websites that are available from any platform (phone, tablet desktop and whatever comes along in the future).

Currently available on iOS from iTunes, the user just selects a template (and there are lots of them, with more added every month) and then starts adding photos (and text and links that can describe the photo or anything else). A photo can be taken there and then, or batch uploaded from previous photos. Of course there are now image editing facilities now built into Zapd such as image enhancement (brightness, saturation, hues, colours etc), resizing, cropping etc.

Zapd 2.0 also has 'social' features built-in so users can now follow other people's Zaps, they can be followed and users can even collaborate on Zaps (so say you're at a wedding or party, just add friends there) and all their photos can go on to the same site.

There's also traditional sharing too so Zaps can be pushed to Facebook and other sites.

It's also completely free, though premium features are expected to be released in the future along with an Android version (note this version is a native app compared to the original Zapd which was built using Sensa Touch and Phonegap).

More info on their Facebook Page, Website and Twitter.

Blackberry 10 to launch Jan 30th 2013

RIM have announced that Blackberry 10 devices will launch on Jan 30th 2013 and that they have already received Federal Information Processing Standard (FIPS) 140-2 security certification which means they are suitable for (US) Government use on launch.

The Blackberry 10 platform is based on QNX so is similar to the Playbook operating system which is already based on it and though it's possible to write native and Java based apps, RIM are no where near the number of apps available for Apple's iOS or Google's Android.

RIM have tried to be as developer friendly as possible and have given devices to anyone who'll listen, but with iOS and Android getting Government use approval, they may well have done too little too late.

Blackberry have always made smartphones (with keyboards) that excel in Email, text and instant messaging and also get phone features right (like handling pretty much any phone number format and being able to dial it correctly in the local convention) and they sort of do apps. This is contrast to iOS and Android which are computers that sort of do phone stuff.