Tag Archive for HackSpace Magazine

HackSpace Magazine, Issue 16

HackSpace Magazine Issue 16This month’s HackSpace Magazine includes a pair of my reviews, the first looking at a computer that’s also a ruler – because that’s not only a thing but the second thing of its kind to come from the same designer – and a new set of charitable Top Trumps-style collectable cards.

First, the ruler-computer. Designed by Brads Projects, the Digirule2 is – as the name suggests – a second-generation design of a compact microcomputer which is also a functional ruler. Printed onto a single circuit board and built around a PIC32 microcontroller, the Digirule2 is inspired by the classic MITS Altair 8800: its memory is displayed on a series of LEDs, and is programmed one bit at a time using push-button switches.

Where the Digirule improves on the Altair, aside from being considerably more affordable and not taking up a huge chunk of your desk, is in having memory slots for saving and loading programmes. These slots come pre-loaded with demonstrations ranging from simple reaction games to a neat persistence-of-vision hack, while the edges of the board are printed with measurements – in binary, naturally – in both centimetres and inches.

The cards, meanwhile, are something a little less technical but no less geeky. Designed by 8bitkick and sold by the Centre for Computing History to fund its restoration and preservation works, the Games Consoles Collectable Cards partner high-quality colour images of classic videogame consoles with statistics that can be compared for a nerdy game of Top Trumps. They also partner well with the Home Computers Collectable Cards, an earlier release now repackaged to match, though sadly the two decks use different statistics and thus can’t be combined into a single mega-deck.

You can read both reviews, and a lot more beside, by picking up a copy of HackSpace Magazine Issue 16 from your nearest newsagent or by downloading a copy for free under a Creative Commons licence from the official website.

HackSpace Magazine, Issue 14

HackSpace Magazine Issue 14This month’s HackSpace Magazines includes my review of an easy-to-use but surprisingly feature-rich robot from Dexter Industries: the BBC micro:bit-powered GiggleBot.

At first glance, the GiggleBot seems like a straightforward two-motor wheeled robot chassis. A closer look, though, reveals where it differs from the norm: RGB LEDs, a built-in line-following sensor, Grove headers for additional hardware, and even a pair of servo headers to add additional motion into the mix.

All this hardware is controlled from a standard BBC micro:bit microcontroller board, and doesn’t interfere with any of its existing components – meaning you’re still free to use the LED matrix display, compass, accelerometer, and Bluetooth radio, the latter even allowing you to use one BBC micro:bit as a handheld remote for another powering the robot.

For the full review you can either pop to your nearest supermarket or newsagent for a print copy of the magazine or, as with all Raspberry Pi Press publications, you can download a Creative Commons licensed digital version free of charge from the official website.

HackSpace Magazine, Issue 10

HackSpace Magazine Issue 10Readers over a certain age will remember the glorious, though brief, age of the personal digital assistant: pocket-size gadgets, typically though not always in clamshell format, exemplified by Psion’s classic Series 5MX. The rise of the smartphone was the death of the PDA, but there’s a company still clinging to the dream: Planet Computers, with its Gemini PDA.

Reviewed in the latest HackSpace Magazine in Gemini 4G form, which adds an LTE radio for data and voice traffic allowing the device to double as a cumbersome smartphone, the Gemini traces its lineage all the way back to the Psion Series 5. Sadly, as a loaner Series 5MX kindly provided by The National Museum of Computing (TNMOC) proved, the resemblance is only skin-deep: the clever sliding keyboard mechanism of Psion’s design is replaced in the Gemini by a straightforward fold supported by a too-weak metal hinge at the back which only loosens over time.

Given HackSpace’s target audience, my review focused less on the device as supplied – running Android 7 – and more on how it acts when given a customised version of Debian Linux supplied for the more technical user by Planet Computers. Installation wasn’t straightforward, sadly, and use even less so – and a battery life test revealed the unoptimised nature of the Debian port, cutting nearly four hours off the device’s lifespan during a video playback test.

I’m still a believer that there’s a demand out there, albeit small, for what would be a true Psion Series 5MX successor: robust, chunky yet pocket-size, with an outdoor-readable display based perhaps based on colour E-Ink technology. Sadly, the Gemini isn’t it.

The full review is available now, both in print and as a free-as-in-speech-and-beer digital download from the official website.

HackSpace Magazine, Issue 5

HackSpace Magazine Issue 5My contribution to the latest issue of HackSpace Magazine is a detailed look at the ZX Spectrum Next, an open-hardware reimplementation of the Sinclair ZX Spectrum microcomputer with a wealth of improvements and enhancements.

Officially licensed from the current owner of the Spectrum rights – Sky In-Home Services, oddly enough, which requires only that a portion of any proceeds are donated to charity – the ZX Spectrum Next builds on the original with a Z80 implementation on a field-programmable gate array (FPGA) which can be run in accelerated mode at up to 14MHz, up to 2MB of memory, SD card storage, built-in joystick ports, crystal-clear HDMI video output, four-channel AY sound, support for original Spectrum keyboards or modern PS/2 keyboards, and even optional real-time clock, ESP8266 Wi-Fi, and Raspberry Pi Zero-based co-processor add-ons.

Despite these upgrades – and more I haven’t mentioned, including a brand-new operating system dubbed NextOS, 256-colour display modes, and hardware sprite support – the ZX Spectrum Next also boasts full backwards compatibility with software and hardware designed for the original Spectrum family, which is something of an impressive achievement given the relatively modest resources available to its creators following a successful crowdfunding campaign for its production.

The ZX Spectrum Next reviewed here, though, isn’t quite the finished article. Provided to backers eager to get their hands on the device as early as possible, the board-only ZX Spectrum Next Issue 2A is aimed primarily at developers. It also comes with an annoying design flaw, which was discovered post-review: a missing capacitor which can cause stability issues when coupled with low-quality power supplies. The finalised Issue 2B, its creators promise, will include the missing capacitor along with a keyboard and chassis housing designed by Sinclair’s long-term industrial designer Rick Dickinson.

For a full look at the ZX Spectrum Next, you can pick up Hackspace Magazine Issue 5 at your nearest supermarket, newsagent, or as a free download under the Creative Commons licence at the official website.