Custom PC, Issue 139

Custom PC Issue 139My desk has been getting a little overloaded with new toys of late, so this month’s Hobby Tech column for Custom PC is review-heavy to help clear that backlog. While the column opens with a two-page tutorial on building a PirateBox, this is followed by a spread looking at four of Pimoroni’s Raspberry Pi add-ons with a concluding page of my thoughts on Imagination Technologies’ Creator CI20 development board.

Looking at the tutorial first, I have to admit to a little trepidation in asking my editor, Ben Hardwidge, to support something called a PirateBox. Thankfully, while its name is designed to raise eyebrows, the concept is free of anything that could reasonably enrage the copyright cartel. A PirateBox is simply a Wi-Fi router running a modified version of the OpenWRT Linux distribution, tailored for localised chat and file sharing. It has no connection to the internet, and if paired with the right low-power hardware can run for days from a cheap USB battery pack. While you could certainly use it to distribute copyright content illegitimately, the fact that you have to be in close physical proximity limits its usefulness – but it’s absolutely top-tier for sharing files at events, which is the use I had in mind when I set out to build the thing.

Pimoroni, a local company just across the way in sunny Sheffield, made a name for themselves by being one of the first to build attractive and affordable add-on boards for the Raspberry Pi. Despite being good friends with the team, I’ve never actually reviewed any of their products – until Gee Bartlett took me on a tour of the factory and pressed four of their most popular creations into my hands. So, rather than spin it out over the next four months, a two-page spread was in order to review the boards: the education-centric PiBrella, the interestingly-shaped PiGlow, the impressive Displayotron-3000, and the retina-searing Unicorn HAT. Spoiler: they’re all pretty great, and the guys are working on some more advanced projects that I can’t wait to get on the test-bench for future issues.

Finally, the Creator CI20. While it sometimes feels that all I do is test single-board computers – not that I’m complaining, they’re absolutely fascinating – the CI20 breaks from the crowd by using the MIPS instruction set architecture. The creation of Imagination Technologies – the company behind the graphics hardware that powered Sega’s ill-fated Dreamcast console, fact-fans – the board has clearly been taken from an existing oddly-shaped design but offers plenty of power for the maker community to hack around, including boasting significantly improved general-purpose performance compared to the majority of the ARM-based boards I’ve tested.

All this, plus a bunch of stuff written by people who aren’t me, can be yours with a visit to your local newsagent or supermarket, or digitally via Zinio and similar distribution services.

Custom PC, Issue 127

Custom PC Issue 127Regular readers of Dennis Publishing’s Custom PC Magazine may notice that there’s been a dramatic redesign by editor Ben Hardwidge this month. The size of the magazine has been increased, returning to its original A4 footprint, and the overall look has been brought bang up to date. It’s something of a rebirth for the publication, and one that comes with good news for fans of my eponymous Hobby Tech column: thanks to extremely positive reader feedback, from this issue forth the column will be five pages long instead of four – making it the longest column in the magazine by far.

This month, as the cover splash demonstrates, I cover work I’ve done restoring an original rubber-key ZX Spectrum using a replica faceplate developed by Rich Mellor of RWAP Software. A long-time Sinclair supporter, Rich also took the time to answer my questions in a brief interview segment; if you’ve ever wondered what would possess someone to spend time and money developing a range of products and accessories for a system that hasn’t been in production for approaching three decades, I’d say it’s well worth a read.

I also walk the reader through using a Raspberry Pi as a secondary display. While I’ve done something similar before, back in Custom PC Issue 123, this time it’s a little different: I’m using a Pi to revitalise a SoundMaster High Resolution Monochrome Monitor I recently acquired, using its single composite video input to add a wonderfully anachronistic amber display to my desktop. The same technique, which relies on the ability to forward X data over SSH, can be used to add any composite or HDMI compatible display to any networked system.

Finally, I offer my thoughts on the PiFace Control & Display accessory for the Raspberry Pi, kindly provided by CPC. Built for embedded designs, the PiFace C&D adds a 16×2 LCD, a bunch of buttons, a three-way joystick and an infra-red receiver to the Pi’s GPIO port. The result is a system which can be controlled away from a keyboard and mouse, and it comes with plenty of Python-powered example code to get the user started. I’ve already had an idea or two for projects…

All this, plus a bunch of stuff written by people who aren’t me, can be yours if you venture to your local newsagent or supermarket. Alternatively, stay indoors where it’s warm and pick up copy digitally via services like Zinio.