This 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.