Did OneWire of DS18B20 sensor fame ever fascinate you in its single-data-line simplicity? If so, then you’ll like PJON (Padded Jittering Operative Network) – a single-wire-compatible protocol for up to 255 devices. One disadvantage is that you need to check up on the bus pretty often, trading hardware complexity for software complexity. Now, this is no longer something for the gate wielders of us to worry about – [Giovanni] tells us that there’s a hardware implementation of PJDL (Padded Jittering Data Link), a PJON-based bus.

This implementation is written in Verilog, and allows you to offload a lot of your low-level PJDL tasks, essentially, giving you a PJDL peripheral for all your inter-processor communication needs. Oh, and as [Giovanni] says, this module has recently been taped out as part of the CROC chip project, an educational SoC project. What’s not to love?

PJON is a fun protocol, soon to be a decade old. We’ve previously covered [Giovanni] use PJON to establish a data link through a pair of LEDs, and it’s nice to see this nifty small-footprint protocol gain that much more of a foothold, now, in our hardware-level projects.

We thank [Giovanni Blu Mitolo] for sharing this with us!

If you’ve ever tried to hook an old Nintendo 64 up to a modern HDTV, you know the results can be less than ideal. Assuming your original hardware still works and your flatscreen even has the requisite R/F and/or composite inputs to allow for the connection, the N64’s output will probably look like a blurry mess on a flatscreen that wasn’t designed with those old video signals as a priority.

The Analogue 3D solves this very specific problem very well, with a powerful FPGA core that accurately replicates a Nintendo 64 and well-made display filters that do a good job of approximating that cathode-ray tube glow you remember from decades ago. But the lack of easy expandability limits the appeal of this $250 device to all but the most die-hard fans of original N64 hardware.

A beauty to behold

As a piece of physical design, the Analogue 3D is a work of art. The gentle curves of its sleek black shell evoke the original N64 design without copying it, coming in at a slightly smaller footprint and height. Plus, there’s no ugly power brick.

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