Wuthering Bytes

Custom PC, Issue 171

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Custom PC Issue 171This month’s Custom PC magazine has a bumper crop for fans of Hobby Tech: a four-page shoot-out of do-it-yourself handheld games consoles on top of my usual five-page column, which this time around looks at setting up Syncthing on a Raspberry Pi, building the Haynes Retro Arcade Kit, and my time running a soldering workshop at the Open Source Hardware User Group (OSHUG) UK OSHCamp gathering.

The workshop first: organiser Andrew Back got in touch with me shortly before the OSHCamp workshop day, held in Hebden Bridge as part of the annual Wuthering Bytes technology festival, was due to take place. The scheduled soldering workshop was at risk, he explained, as the person due to run it was no longer available. I was happy to help, and I’m pleased to report a great day was had by all assembling Cuttlefish microcontroller kits – despite the use of some particularly ancient soldering irons with tips which appeared to be made of freshly-hewn coal!

The Haynes Retro Arcade Kit feels like a device which could have been in the DIY console shootout, but it wouldn’t have fared well. Designed by Eight Innovation and slapped with the Haynes brand, the Retro Arcade Kit is a fiddly and distinctly unrewarding soldering kit which ends up as a particularly basic version of Pong. The coin activation system is its only redeeming feature: two pieces of thick solid-core wire sit side by side, and are shorted out by an inserted metal coin to start a fresh game. Not an original trick, but one well implemented – if you ignore the terrible instructions and poor build quality.

Syncthing, meanwhile, has been a mainstay of my toolbox for years. An open-source project designed to keep files on two or more computer systems synchronised, Syncthing is built with security and convenience in mind – and works a treat on the Raspberry Pi. Given that I was needing to find a new home for my off-site backups anyway, as my regular provider CrashPlan is ceasing its cheapest product line, it seemed natural to write up the process of turning a Pi and a USB hard drive into an off-site backup destination.

Finally, the four-page DIY console shoot-out is a reprint of the same feature as it appeared in PC Pro Issue 277 in mid-September. As before, four Arduino-compatible devices are covered: the Gamebuino, MAKERbuino, Creoqode 2048, and Arduboy.

All this, and the usual selection of things written by others, can be found at your nearest newsagent, supermarket, or electronically via Zinio and similar distribution services.

Custom PC, Issue 148

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Custom PC Issue 148My regular Hobby Tech column is undeniably review-heavy this month, with three separate items spread across its five pages: the CompuLab Fitlet, the Bare Conductive Touch Board Starter Kit, and the Widdop.

To deal with the latter first, the Widdop is a bit of an odd thing to review at first glance as it was available exclusively to those who attended this year’s Wuthering Bytes festival. There’s method in my madness, though: it’s a variant of the Cordwood puzzle designed by Saar Drimer at Boldport, and a review of the Widdop is equally applicable to its predecessor. In short, it’s a soldering kit sans instructions: two artistically designed and matching circuit boards are supplied along with a fistful of components, and it’s up to the user to not only work out how it should be assembled but then how to interface it to a microcontroller or other controlling system – great fun!

The Bare Conductive Touch Board, by contrast, is readily available. I had previously experienced the delights of the Touch Board, an Arduino-compatible microcontroller with built-in capacitive touch sensing and audio playback capabilities, at the Manchester MakeFest where the Manchester Arduino group were demonstrating Touch Board-powered musical food bowls. The Starter Kit, though, is something else entirely. Packed in an oversized box it contains everything you need to get started, from the conductive paint which made Bare Conductive famous to the Touch Board itself pre-loaded with a voice-led 12-step tutorial.

The booklet is the real prize, though. Walking the user through three projects, it’s one of the best I’ve seen: well produced with exciting photographs and a great attention to detail. The primary project, too, is innovative: a stencil and overlay in the shape of a house demonstrates how the conductive paint can be used to create interactive art, with the remaining two projects offering an intruder alarm – for bare-footed intruders, at least – and a look at adding interactivity to household objects.

Finally, the Fitlet. I’ve been a fan of CompuLab’s tiny Linux-compatible PCs for a while, but the Fitlet is the first I’ve had a chance to review. Supplied in its top-end form with an AMD A10-Micro6700T quad-core processor, it has the grunt of a low-mid-range office desktop but in a passively cooled form factor little larger than a cased Raspberry Pi. Compared to the already diminutive Intel NUC, it’s absolutely tiny: the smallest NUC has a volume of 0.417 litres, while the Fitlet is just 0.215 litres in volume.

Despite its size, there’s a bit of everything: as reviewed, the Fitlet offers on-board Wi-Fi and Bluetooth, dual gigabit Ethernet ports, three USB 2.0 and two USB 3.0 ports, powered eSATA, and even a GPIO connector – which, sadly, lacked driver support at the time of my review, an issue CompuLab has now resolved with the release of an official Software Development Kit (SDK). Running Linux Mint 17.2 but compatible with most any operating system that would run on an x86-64 desktop, the CompuLab is definitely one of the most exciting devices I’ve had the privilege to test recently – although that excitement is tempered by a £300 selling price in the UK, putting it on-par with the more computationally powerful Intel NUC.

All this, plus interesting stuff written by people who aren’t me, can be found between the covers of Custom PC Issue 148 at your nearest newsagent, supermarket, or from the comfort of your own home via digital distribution services such as Zinio.

Custom PC, Issue 135

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Custom PC Issue 135There’s no tutorial in this month’s Hobby Tech, for one simple reason: the only interesting thing I built this month is actually from a kit, and more suited to a review-format write-up. As a result, you’ll find in the pages of Custom PC Issue 135 a two-page review of the Pi2Go-Lite robot kit, a spread on my visit to the Wuthering Bytes festival in Hebden Bridge, and a review of the surprisingly powerful CuBox-i4Pro.

Starting with the robot, Gareth Davies of UK-based educational electronics concern 4tronix was kind enough to send me an early sample of a Raspberry Pi-powered robotics kit he has put together. Dubbed the Pi2Go-Lite, it’s a cost-reduced solder-it-yourself version of a more feature-filled and pre-assembled Pi2Go design. Despite this, it’s hardly lacking in features: as well as a pair of motors driving wheels with rubber tyres and a metal 360-degree bearing caster at the front, the robot includes numerous sensors including infra-red for line-following and impact warnings and ultrasonic for distance measuring.

The kit was a delight to build, being mostly through-hole components with a small introduction to surface-mount soldering in order to – rather cleverly, in my opinion – mount standard through-hole infra-red sensors on the front edge of the main circuit board. The robot itself is driven from the Raspberry Pi’s GPIO header – Pi not supplied – which is in turn driven by a set of AA batteries. I had great fun with the build, and I’d recommend checking out the review if you fancy a bit of Python-powered robotics yourself.

Wuthering Bytes, as those who follow me on Twitter – or, indeed, in real life – will know, is a maker-themed technology event in Hebden Bridge each year. As with last year’s event, I was invited by co-founder Andrew Back to compère the Friday’s formal talk sessions and then used that to guilt the team into letting me attend the Saturday talks and Sunday workshops for free. Personal highlights of the event included a talk by Sophie Wilson, co-inventor of the ARM processor architecture, on the future of semiconductors and some excellent hands-on workshops on the Sunday – and I’m already looking forward to Wuthering Bytes 2015.

Finally, the CuBox-i4Pro. Kindly supplied by the lovely Jason King at low-power computing specialist New IT, SolidRun’s latest revision of the ultra-compact CuBox concept features an amazingly powerful quad-core Freescale i.MX6 processor. It’s the quad-core variant, in fact, of the chip you’ll find in the HummingBoard I reviewed last month, with SolidRun having worked to ensure software written for one can be used on the other.

For all this, plus various things written by people who aren’t me, you’ll want to either venture to your local newsagent or supermarket or stay in and download a digital copy of Custom PC Issue 135 via Zinio or similar services.

Custom PC, Issue 124

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Custom PC Issue 124My well-received four-page column, Gareth Halfacree’s Hobby Tech, continues in this most recent issue of Dennis Publishing’s Custom PC Magazine with a review of the Fuze case for the Raspberry Pi, my progress with uncovering the secrets behind a piece of computing history, and a guide to designing and producing your own custom circuit boards.

First, the review. I’ve already covered the Fuze for Linux User & Developer, with the review scheduled to appear in Issue 133 in print following its early publication to the site, but here I concentrate less on an objective review and more on my subjective experience of the device.

If you haven’t seen it, the Fuze is an all-in-one machine which turns the Raspberry Pi from a bare circuit board into a fully-fledged microcomputer complete with built-in keyboard. Designed to evoke nostalgia for Acorn’s original BBC Micro, the metal chassis is well-made and includes a prototyping area at the top for constructing circuits which connect through a bundled buffered general-purpose input-output (GPIO) interface board.

Designed primarily for education, the Fuze is expensive – thanks largely to its creator’s focus on local manufacturing coupled with the inclusion of numerous electronic components and handy educational project guides – but undeniably impressive. Some issues I ran into while I was writing both features have since been addressed, following an extremely productive phone-call with the Fuze’s inventor, and it has become my go-to device when I need to do some work with a Pi.

For the regular vintage computing section, something a bit special. I recently helped out at the Wuthering Bytes festival in Hebden Bridge, which was organised by my friend Andrew Back – among others. I picked up something special from Andrew: an LJ Electronics Tina microcomputer, something computing museums around the world have scratched their heads over. Ex-RAF, the device appears to be a teaching system – but includes break-outs for everything from the keyboard to the TTL-level display, and built-in software including BASIC, assembler, telecommunications and even a machine-code monitor.

I’m currently working to restore the machine, and to find out some more about its history. The company which created it still exists – as LJ Create, rather than LJ Electronics – so they’re my next port of call. Unfortunately, one of the ROM chips – the one which holds the machine code monitor – is corrupt, but Andrew also gave a second machine to a friend of ours, so I’m hoping to get a clean dump and finish restoration in the near future.

Finally, a tutorial on designing your own printed circuit boards. Based on my experiences making the Sleepduino, an Arduino compatible night-light and white-noise generator, I walk the reader through using freely available software and cheap commercial PCB printing services in order to build custom devices. My software of choice is Fritzing; while it has its detractors, who quite rightly point out it’s relatively restricted and somewhat slow, it’s a lot easier to get started with than any other cross-platform PCB design tool.

All this, plus a bunch of other interesting stuff which I didn’t write, can be found at your local newsagent, supermarket, or on the digital nets via services like Zinio.