Custom PC, Issue 201

Custom PC Issue 201This month’s Hobby Tech column takes a look at the upcoming Mooltipass BLE hardware password dongle, FLIR’s ETS320 thermal camera for electronics testing, and has a word from Eben Upton about the cost-reduced Raspberry Pi 4 Model B 2GB single-board computer.

First, the Mooltipass BLE. I reviewed the Mooltipass Mini – itself a successor to the original, bulkier Mooltipass – back in Issue 168: a compact, metal-encased device, the Mooltipass Mini holds your passwords in encrypted storage accessible only using a smartcard and four-digit hexadecimal PIN. I’ve been using the Mooltipass Mini with great success since its launch, but it’s always a bit of a pain to use with a mobile device – requiring a USB cable and OTG adapter.

The Mooltipass BLE aims to fix that, by integrated a Bluetooth Low Energy radio. While it can still operate in tethered USB mode, the Bluetooth radio plus internal battery give it a newfound freedom – though my experience is as a beta tester, with finalised and fully-functional firmware still under active development before the device goes on open sale.

The FLIR ETS320, by contrast, is a fully-finished piece of hardware. Regular readers will know that I’ve long been an advocate of thermal imaging analysis for revealing the secrets of electronic devices, and the ETS320 is a considerable upgrade from my usual FLIR C2: the 80×60 resolution thermal sensor of the C2 is replaced by an impressive 320×240 version in the ETS320, at the cost of a dramatically reduced maximum focus distance. I’d also like to thank FLIR for its partnership: the ETS320 has become a permanent fixture in my toolkit, and will be used alongside the C2 for thermal analysis in future hardware reviews.

Finally, the Raspberry Pi 4 Model B 2GB. While the board itself isn’t new, its pricing is: Raspberry Pi Trading recently decided, prompted by falling RAM prices, to retire the 1GB model and make the 2GB model the new entry point into the family. “2GB is a much more viable desktop platform than 1GB,” RPT chief executive Eben Upton told me in an interview for the column. “1GB is great for embedded, but for a desktop platform it’s just a little bit too tight. What it means is that we’re now back to having a really viable desktop machine at our signature price point.”

The full column is available now in Custom PC Issue 201 at your local newsagent, supermarket, or for global delivery from the official website.

Custom PC, Issue 200

Custom PC Issue 200In this milestone issue of Custom PC Magazine you’ll find a look at the impressively retro tilde.club service and the wider tildeverse, the edge-AI-focused Orange Pi 4B single-board computer, and the Pi Hut ZeroDock accessory for the Raspberry Pi Zero.

First, tilde.club – which requires a little history lesson for context. In the early days of networked computing, particularly on systems based on UNIX or the later POSIX standard, users hosted shared files in their home folders – which were given the shortcut ~. Today, shared systems have given way to virtual private servers (VPSes), but tilde.club offers a reproducible platform for those who miss the early days: your own directory, with public and private areas, on a truly shared POSIX-compliant server.

As well as hosting simple websites – there’s no server-side scripting here – you can join in internal email discussions, an on-server BBS, a text-based interface for the popular Reddit social network, and even play multiplayer games, all in the comfort of your terminal. A major delay in approving accounts for the original tilde.club – five years before a volunteer took over the service and began clearing the queue – also gave rise to the tildeverse, a network of tilde.club-based servers many of which focus on particular topics of interest.

The Orange Pi 4B, by contrast, is very much not a throwback but a piece of hardware designed to sit at the cutting edge. Mimicking, with a few modifications, the layout of a Raspberry Pi single-board computer, the Orange Pi 4B offers a Rockchip RK3399 six-core processor – two high-performance cores, four low-power cores – alongside a neural processing unit (NPU) coprocessor for edge-AI acceleration. As usual, my review looks at software support, hardware performance, and thermal imaging – along with an investigation of what the NPU brings to the table.

Finally, the Pi Hut ZeroDock is a handy but sadly pricey accessory for the Raspberry Pi Zero family of single-board computers. Constructed from laser-cut acrylic, the ZeroDock houses a Pi Zero, a bundled compact solderless breadboard, and a small number of accessories like USB dongles and SD Card adapters. For those using a Pi Zero for prototyping, it’s a great tool – but at £10, twice the price of the Pi Zero board itself, it’s a little too expensive to be a must-have.

The full feature can be found on newsagent and supermarket shelves now, or purchased for global delivery from the official Custom PC website.

 

Custom PC, Issue 198

Custom PC Issue 198This month’s Hobby Tech opens on an interview with Bitmap Books founder Sam Dyer, covering what his nostalgia-driven coffee-table book specialist publisher has been up to in the half-decade since last we spoke, moves on to a preview of the soft-launched Sensoreq CooliPi Raspberry Pi 4 case and heatsink, and ends with a look at UNIX: A History and a Memoir by Brian Kernighan.

I last interviewed Dyer on the back of the launch of Bitmap Books’ inaugural publication, the crowdfunded Commodore 64: A Visual Commpendium – the spelling of the latter, he was at pains to tell me at the time, a deliberate pun. In the five years since, Dyer’s press has moved from collecting screenshots of Commodore 64 and Amiga games to producing some big-budget hardback titles, most recently including officially licensed titles – a rarity in the all-too-often copyright-ignorant retro gaming sphere. There’s more to come, too, Dyer told me in this latest interview – including some non-gaming works, including a Micro Machines-focused book dubbed Micro But Many due later this year.

The CooliPi case, meanwhile, is an interesting beast – not least because not only is the plastic base 3D printed rather than laser-cut or injection-moulded, but the design files to print your own are provided for free download. That’s because the secret sauce sits on top: a custom-milled and surprisingly hefty aluminium heatsink, available in a variety of colours. The case is cleverly designed and its cooling performance, even operating without the optional mount for a 5V fan, is the best I’ve seen – though the Hobby Tech piece is a preview, rather than review, as creator Sensoreq finishes a few last tweaks before the design can be considered fully final.

Finally, Kernighan’s memoir – written by a man who, in his own words, was “present at the creation [of the UNIX operating system] but not responsible” – is a thoroughly enjoyable first-person perspective on some of the most important works in computing history, and the precursor to the Linux-based operating system on which I’m typing right now. A vanity press publication, created through Amazon’s print-on-demand service, the book’s print quality isn’t great – most obvious on the cover, where an extremely low-resolution image has been stretched blurringly around the book giving the impression of a knock-off – but the content more than makes up for its production values.

All this, and more, can be found on the shelves of your nearest supermarket, newsagent, or for worldwide delivery from the official website.

Custom PC, Issue 196

Custom PC Issue 196My Hobby Tech column this month opens with a look at a surprisingly swish programming environment for the Nintendo Switch, of all things, walks through the creation of a power-saving networked display using the Pimoroni Inky wHAT and a Raspberry Pi, and looks at a book which purports to chart the history of Apple Macintosh gaming.

First, the programming environment. Fuze4 Nintendo Switch, available now on the Nintendo eShop, builds on the Fuze BASIC programming language originally developed for the Raspberry Pi and reviewed – alongside its BBC Micro-inspired housings – in Issue 124 and Issue 136. This time around, though, the language is considerably less BASIC and more like a hybrid between BASIC, Python, and a bit of C thrown in for good measure. It’s also less focused on things like sensor reading and GPIO control – for obvious reason – and instead designed specifically for a single task: making games.

There are aspects that need polish – in particular the sharing of created projects, which at present can only be done via Nintendo’s clunky friends-list system – but overall Fuze4 Nintendo Switch is impressive. You’ll want a keyboard, but once you get started it’s easy to build some impressive projects – one demo supplied with the game showcases a fluid 3D engine with dynamic lighting, created in a remarkably short number of lines.

The Inky wHAT project, meanwhile, was largely a means of documenting something I created for my own use: an electrophoretic display that would display the output of the schedule printer I detailed in Issue 183 without needing to print on physical paper. There’s a twist, too: after finding that the only box-frame available that would fit the project depth-wise was too large, I created a mock-up of an Amiga Workbench desktop to frame the smaller Inky wHAT display – and the effect is surprisingly convincing.

Finally, Richard Moss’ The Secret History of Mac Gaming was a pleasure to read, though a few aspects of Apple’s history are presented from the eyes of a fanboy rather than a historian. Switching between recollection, research, interview content, and contributed material, the book does a great job of documenting the largely-forgotten history of gaming on Apple Macs – though it could have benefited from another editing and layout pass, in particular to avoid the recurring issue where screenshots either appear out-of-order or without any reference in the text.

As always, the latest Custom PC Magazine is available from all good newsagents and supermarkets, or can be ordered for worldwide delivery from Raspberry Pi Press.

Custom PC, Issue 195

Custom PC Issue 195This month’s Hobby Tech column opens on an interview with Ryan Brown on the impressive Quarter Arcades miniature fully-licensed reproduction arcade cabinets, moves on to a review of the RISC-V-based Seeed Studio Grove AI HAT for the Raspberry Pi, and closes with a look at Pimoroni’s clever Inky wHAT electrophoretic display.

First, the interview. Answering the important question first, Brown admitted that “the pun certainly helps” when it came to deciding to what scale the Quarter Arcades cabinets should be produced: each carefully-designed reproduction, modelled on real period-appropriate cabinets, is built to a quarter scale both as a means of having it sit nicely on a desk and of providing a name which echoes the most commonly-required coin of US arcade cabinets.

While the Quarter Arcade range is currently limited to licensed properties including Pac-Man and Galaga, Brown has indicated there’s potential there to expand: “Starting with the most beloved classics really helps us open doors to other, more niche arcade games, and even potentially games that never reached the arcade.”

The Seeed Studio Grove AI HAT, by contrast, was an undeniable disappointment. Based on the Kendryte K210 system-on-chip, which uses the RISC-V instruction set architecture and includes a co-processor designed to accelerate artificial intelligence workloads, the AI HAT can be used as a stand-alone development board or attached on top of a Raspberry Pi – but in the latter mode is almost entirely divorced from the Pi itself, to the point where it’s not even possible to program the AI HAT without detaching it again and connecting it to a more traditional PC.

Finally, the Inky wHAT. Another Raspberry Pi HAT (Hardware Attached on Top) board, the Inky wHAT offers a 4.2″ electrophoretic display in three colours: red, black, and white in the model reviewed, with a yellow variant available alongside a slightly cheaper black-and-white two-colour version. Forming the heart of a project which will appear in next month’s magazine, the Inky wHAT impressed – though it would be nice to see the price drop a little, given how cheap full-colour though considerably more power-hungry LCD panels are these days.

Custom PC Issue 195 is available now at all good supermarkets, newsagents, and digitally through the usual outlets.

Custom PC, Issue 194

Custom PC Issue 194My regular Hobby Tech feature provided two opportunities to break out the thermal camera, thanks to a detailed analysis of a range of cooling products for the Raspberry Pi 4 and a review of the Libre Computer Project’s La Frite single-board computer – and there was even time to take a look at Brian Dear’s exhaustive title The Friendly Orange Glow: The Untold Story of the Rise of Cyberculture.

First, La Frite. Funded, as with all Libre Computer Project boards, via crowdfunding, the compact single-board computer is designed to compete with the like of the Raspberry Pi. It certainly has its selling points: there’s a mounting point on the underside for an eMMC storage module, though it uses proprietary mounting holes; there’s a clever midship-mounted Ethernet port to reduce the overall height; and it even comes with the option of a clever two-piece aluminium case that doubles as a heatsink. Sadly, the board’s performance isn’t there, its software support struggles, and despite the name of the organisation its openness is limited to targeting mainstream Linux kernels; the board itself is a proprietary design.

Moving on to the topic of the Raspberry Pi 4, there’s no secret now that the new high-performance processor at its heart runs a little warm. For my analysis of the issue and a look at some potential solutions, a benchmarking workload was executed while temperature and clockspeed were measured and charted – demonstrating handily the loss of performance you get when the system-on-chip begins to heat up.

These data are joined by the same workload while the Raspberry Pi 4 is enjoying the benefits of a range of third-party cooling products: the Pimoroni Heatsink and Fan Shim options, the former running in passive-only and fan-assisted modes and the latter in always-on and software-controlled modes, along with the 52Pi Ice Tower heatsink and fan assembly as supplied by Seeed Studio and running in 5V, 3V3, and wholly passive modes. The temperatures across the run are then charted, while thermal imagery provides a visual insight into how the whole board heats under passive and active cooling.

Finally, The Friendly Orange Glow is a book I’d heartily recommend to anyone interested in the history of a surprising range of modern technologies – from flat-panel plasma displays and multiplayer gaming to Microsoft’s FreeCell. Charting the rise and fall of PLATO, a computer-assisted learning platform now largely forgotten by history, the book is about more than just technology: as its subtitle, The Untold History of the Rise of Cyberculture, suggests, PLATO and those who built and used it were responsible for cultural movements that wouldn’t be repeated elsewhere in the world for decades.

You can pick up the latest issue of Custom PC Magazine at your nearest newsagent, supermarket, or online at the Raspberry Pi Press Store, or grab it in digital form via the usual distribution services.

Custom PC, Issue 193

Custom PC Issue 193My Hobby Tech column focuses this month on the Raspberry Pi 4, the amazingly inexpensive M5Stick-C microcontroller platform, and Zach Barth’s game design retrospective Zach-Like.

The column opens with the Raspberry Pi 4 review, a two-page look at the layout, features, functionality, and performance of the latest single-board computer from the Raspberry Pi Foundation. As always, there’s plenty of photography – including thermal imagery, using an in-house process I developed to get the most detail possible by combining visible light and infrared photography into a single print-resolution image.

My look at the M5Stick-C, part of the M5Stack family of products, needs no such clever photography – though there is a shot of the device on my wrist, thanks to a bundled watch strap mount. Designed around the low-cost ESP32 microcontroller the M5Stick-C includes buttons, a full-colour screen, Wi-Fi and Bluetooth connectivity, LEDs, a range of sensors, a built-in battery chargeable over USB Type-C, and the aforementioned watch strap plus a wall-mount bracket, LEGO-compatible mounting bracket, and even a built-in magnet – and all for under £10 excluding VAT. It may not be perfect, but it’s certainly cheap enough.

Cheaper, though, is Zach-Like, a collection of game design documents charting the early days of Zach Barth and his company Zachtronics. Initially available as a limited-run print edition on crowdfunding site Kickstarter, Zach-Like is now available as a free electronic download on Steam in PDF format – and comes with a huge selection of bonus content, including playable versions of several unreleased games and prototypes. At £10, Zach-Like would be a bargain; for free, it’s astonishing.

You’ll find the full column, and a lot more, in Custom PC Issue 193 at your nearest supermarket, newsagent, or on any one of a selection of digital distribution platforms.

Custom PC, Issue 191

Custom PC Issue 191This month’s Hobby Tech column takes a look at Nvdia’s first-ever entry into the maker market with the Jetson Nano, guides the reader through assisting the Internet Archive with its Sisyphean task, and takes a look at the Xiaomi Wowstick cordless screwdriver.

First, Nvidia’s offering. While the original Jetson TK1 single-board computer was sold through the since-departed high-street electronics outlet Maplin in the UK, its near-£200 price tag meant it wasn’t of much interest to the pocket-money shopper. Its successors in the Jetson family have been successively more expensive, culminating in the £1,199 Nvidia Jetson AGX Xavier reviewed last month. The Jetson Nano, by contrast, is just £95 – £101.50 if you include shipping – and is specifically aimed at makers and tinkerers.

The board uses a system-on-module (SOM) on carrier design, dominated by a massive heatsink. Although it’s perfectly possible to view the device as a souped-up and considerably more expensive Raspberry Pi, general-purpose computing isn’t Nvidia’s primary market: instead, it’s aiming to bring a new generation of developers into the CUDA GPU-accelerated computing ecosystem by using the Jetson Nano as a jumping-off point for deep learning and machine intelligence projects, including its own Jetbot autonomous robot platform.

The guide, meanwhile, walks the reader through using almost any PC to assist the Internet Archive with its goal of storing all the world’s information for immediate retrieval. Written as I was firing up a Warrior – the name given by the Archive Team to its distributed data capture systems – to assist with the archiving of the last bits of Google+ before its closure, the step-by-step instructions will let anyone contribute to the not-for-profit effort.

Finally, the Wowstick comes from a company better known in the UK for its cut-price smartphones: Xiaomi. Designed, as with much of the company’s output, to give a premium feel, the USB-rechargeable electric screwdriver is aimed at fine electronics work rather than flat-pack assembly – and does a surprisingly good job of it. Only limited torque for locked-down or larger screws and a terrible case whose tiny magnets are improperly attached let the bundle down.

For the full run-down on all this and more you can pick up Custom PC Issue 191 from your nearest newsagent or supermarket, or snag a digital copy from Zinio or similar services. Alternatively, a new subscription offer will get you the next three issues for just £5 – renewing at £25 every six issues if you don’t cancel beforehand.

Custom PC, Issue 187

Custom PC Issue 187This month’s Custom PC is a special one, and not because of anything in my column – though I’d like to think my column is always special – but because it’s the first issue to be published under Raspberry Pi Press rather than Dennis Publishing. It’s immediately obvious that a change has happened: putting Issue 187 next to Issue 186 reveals a considerably thicker tome for the same page count, thanks to vastly improved paper quality and a corresponding boost in print quality.

Between the covers, though, it’s pretty much business as usual – but regular readers should watch out for a survey, due to be published in the next issue or two, which will float some ideas for bringing back classic features or adding new content – with editor Ben Hardwidge unwilling to make any dramatic changes until the readership has had its say.

From background publication details to the column at hand: this month’s Hobby Tech includes a detailed review of a desk calculator – no, really – alongside a look at Netflix’s Bandersnatch interactive film and the 8bitkick Centre for Computing History Games Consoles Collectible Cards set.

First, the calculator. Created by Lofree, a Chinese company known for retrofuturistic designs, the Digit’s claim to fame is the use of mechanical keyswitches with a pleasing ‘click’ as they’re depressed. Beyond that, it’s a fairly sedate devices: surprisingly chunk yet light, and with an LCD display that’s difficult to see at the best of times, the Digit feels like a wasted opportunity. If it had launched with a USB port and doubled as a keypad for those using tenkeyless keyboard layouts, things could have been different.

Bandersnatch, meanwhile, was not a disappointment at all. A feature-length episode of speculative fiction series Black Mirror, Netflix’s highest-profile interactive film yet puts the player in at least partial control of a computer programmer working on the titular game – based, incredibly loosely, on the real-world never-released ‘Megagame’ Bandersnatch from Imagine Software. My look at Bandersnatch focuses on its links to real-world computer history and the experience as a game; elsewhere in the same issue you’ll find a lengthy interview with writer and series co-creator Charlie Brooker, to which I contributed some questions.

Finally, the collectible cards from 8bitkick will be familiar to regular readers: back in Issue 154 I reviewed their vintage computing predecessors. This time around, the topic for the Top Trump-style card game is consoles rather than computers – and they’re now an official product of the Centre for Computing History, with all profits going to support its preservation and education works.

Custom PC Issue 187 is available now from your nearest supermarket, newsagent, while the electronically-published version may take a while later to arrive thanks to the change of publisher.

Custom PC, Issue 182

Custom PC Issue 182In my Hobby Tech column this month, I take a look at the disappointing Planet Computers Gemini PDA, the significantly less disappointing Proto-Pic Program-o-Tron, and the recent updates designed to make the Raspbian operating system for the Raspberry Pi significantly more welcoming to newcomers.

First, the Gemini PDA. I’ve long been a fan of the clamshell personal digital assistant (PDA) form factor, and it was with a heavy heart that I finally hung up my Psion Series 5 after it became clear that smartphones had won that particular war. Now, the format is back courtesy of Planet Computers and the crowdfunded Gemini PDA – a design based on the Psion Series 5 and put together by one of the staff responsible for the original, but which misses its mark at almost every turn.

At its heart, the Gemini PDA is an Android smartphone – even the non-4G version, which is simply an Android smartphone with the cellular radio removed. While it’s possible to run a Debian-based Linux on top, the experience is poor – but, that said, no more poor than the buggy Android build supplied with the device, which insists on booting up in German despite being clearly marked as a UK model. The hardware, too, disappoints: performance under Linux is not where it should be, and while the keyboard is a near-perfect match to the original Psion design the clever sliding hinge mechanism is entirely missing in favour of a loose and flimsy metal kickstand that fails to provide nearly enough support.

Many thanks must go to the National Museum of Computing (TNMOC), which kindly provided an original Psion Series 5MX PDA for direct head-to-head comparison during the review.

The Program-o-Tron, after a disappointing start to the month, proved considerably better. Again crowdfunded, the Proto-Pic device is designed to make life easier for those working with Atmel ATmega microcontrollers. Rather than having to program each chip individually from a PC, the Program-o-Tron allows you to hold six hex files on an SD card and flash them onto a chip inserted in the ZIF socket at the push of a button – and, even better, to take a dump of the contents of a chip, including its fuse settings, to clone it without ever needing to touch the original program code.

Finally, the recent update to Raspbian operating system for the Raspberry Pi brought a couple of changes for the better: a lightening of the load when it comes to pre-installed software, complete with a tool to add packages back in on-demand, and a first-run welcome wizard which walks newcomers through configuring the Wi-Fi networking, localisation settings, and choosing a new password. The latter is particularly welcome: since launch, the default for Raspbian has been to keep the ‘pi’ and ‘raspberry’ username and password combination, making it easy for attackers to gain access to systems accidentally or deliberately connected to public networks. By asking users to choose a new password on first boot, the hole is closed.

To read more, pick up Custom PC Issue 182 from your nearest newsagent, supermarket, or digitally via Zinio or similar distribution platforms.