Custom PC, Issue 129

Custom PC Issue 129In this month’s Hobby Tech spread, settling nicely into its expanded five-page format, I show readers how to build a near-field communication (NFC) power switch for their PCs, reuse some classic keyboard key caps from an Amstrad CPC 464, review the CubieBoard 2 and interview Ryanteck’s Ryan Walmsley; it’s a bumper column, in other words.

First the review. The CubieBoard 2 has been available internationally for some time, but has only recently reached our shores courtesy low-power PC specialist New IT. Designed as an alternative to the ever-popular Raspberry Pi, the CubieBoard 2 boasts a dual-core AllWinner A20 processor, 1GB of RAM, and – something that will likely interest many – an on-board SATA port with 5V power for 2.5″ storage devices.

The CubieBoard 2 is supplied with a terrible Android port on its internal flash storage, but software support is excellent – unusual for consumer-grade single-board computers like this, which usually abandon the user with a years-old copy of Ubuntu and a hearty handshake. The CubieBoard 2 is, in fact, the official platform used by Fedora for its ARM port. Does that make it a good buy? You’ll have to read the review to find out, I’m afraid.

The cover-flash tutorial was the result of a social visit from John McLear, a friend and fellow hacker who is the brain behind Kickstarter success story the NFC Ring. As its name implies, the NFC Ring packs a pair of near-field communication tags – fully rewritable – into a wearable form-factor. Having supplied me with an early prototype some time ago, John let me rummage through a pile of rejects to find a thinner and more modern version indicative of the final product quality – and thus the concept, a PC power supply that would trigger when the NFC Ring comes into range, was born. A quick shopping trip to the ever-dependable oomlout later, and I was finished in record time.

I’ve recently made the move from my dependable IBM Model F keyboard to a modern Cherry MX mechanical model from Filco. It’s nice, but lacks a little in the style department; which is where a deceased Amstrad CPC 464, already missing some keys, comes in. With a little modification, it turns out you can take the keys from the CPC and use them on a Cherry MX switch – and my keyboard now has a classic Escape key for my troubles.

Finally, Ryan Walmsley. Just 17 years old, Ryan has set up a business creating accessories for the Raspberry Pi. I caught up with him following a successful crowd-funding run on Tindie for his first product, the Ryanteck Motor Control Board or RTK-000-000-001. He’s a fascinating guy, and a real inspiration to anyone who thinks they could never break into the world of hobbyist electronics.

All this, plus a bunch of stuff from people who aren’t me, can be yours at your local newsagent or supermarket, or digitally via services including Zinio.

Custom PC, Issue 119

Custom PC, Issue 119My four-page bumper column for Custom PC, wonderfully titled Gareth Halfacree’s Hobby Tech – and don’t I feel like the important one – continues this month, and once again is granted a cover splash thanks to the key magazine-shifting phrase ‘Raspberry Pi.’ That’s not all it contains, of course: once again the page count is split between a tutorial, retro computing, a pseudo-review and for the first time a box-out containing news from the world of the maker, hacker and tinkerer.

First, the tutorial. Thanks to my friends Eben and Liz Upton, I’m one of the lucky few to have received a Raspberry Pi Camera Module. The first official first-party hardware add-on for the Raspberry Pi, the Camera Module makes use of the Camera Serial Interface (CSI) port to provide a five-megapixel fixed-focus camera on a teeny-tiny circuit board smaller than most coins.

The software for the board is still very much in the early stages, but working well enough for the purpose of the tutorial: to use a Raspberry Pi as a timelapse photography system. Using a bit of Bash shell scripting – the Pi’s own camera software has a timelapse mode, but it doesn’t actually work just yet – the reader is walked through getting the camera connected, the software activated and the software running to capture Full HD stills every thirty seconds until cancelled or the SD card fills up.

This month’s review is of the excellent SpikenzieLabs Calculator Kit. Built around an Atmel ATmega microcontroller – the same one that powers the Arduino Duemilanove, in fact – the device is a cleverly designed kit that functions somewhat better as an exercise in neat soldering than a calculator. Nevertheless, I had fun making it – and I have a few ideas for how I can make use of the microcontroller’s other functions in later projects.

The retrocomputing fix is provided by the Amstrad Notepad Computer NC100, having picked up a mint-condition example from eBay just recently. Rather than sitting on a shelf, the NC100 is to form a part of my field kit – its moulded keyboard and 30-hour battery life make it great for taking notes at events – which provides a great example of how classic computing hardware can be used to augment more modern and powerful equipment.

Finally, there’s the news. Now to be a regular fixture – space permitting – I’ll be picking a couple of stories from the world of the maker to highlight major product launches, announcements or trends.

As always, I’d love to hear feedback about the column; response to the first has been uniformly positive, but if anyone has any ideas for improvements I’d be more than happy to hear them.

Custom PC Issue 119 is, as always, available from wherever you would normally find magazines, or digitally via Zinio and similar services.