Finishing the IN-9/IN-13 Nixie Tube Driver for the Raspberry Pi (Part 2)

Mark Smith writes on the Surf ‘n Circuits blog about a Nixie Tube project:

Finishing the IN-9/IN-13 Nixie Tube Driver for the Raspberry Pi (Part 2)

Rarely during product development do you get it correct on the first design iteration. Something always goes wrong or just isn’t perfect. However, like trying for a hole-in-one on a par 3, you always try for perfection but expect to need a few extra strokes. So, while I almost hit a hole in one in the first version of the Nixie Tube HAT (Part 1), a few improvements were required. In this blog, I describe the few improvements found from Part 1 and complete the design to reach stage 6 of the surfncircuits defined development flow. As with the other projects in the blog, the complete design files in Kicad, schematics, layout, BOM, are available at GitHub for use in your own projects. You can build it yourself and the PCB can also be ordered directly from Oshpark.

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BadgeLove meetup in SF on October 18

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Hackster.io is hosting a BadgeLove meetup in San Francisco on Friday, October 18th:

Have you ever created a badge? Are you currently working on a badge? You are invited as a guest of honor to Hackster’s BadgeLove! Meetup. We want to take an evening to appreciate the hardware heroes who do the often thankless and frequently futile task of creating PCB artwork, shitty add-ons, and PCB badges. 

We are excited to toast the winners of last winter’s BadgeLove! contest on Hackster. Come in person, record a video or join via YouTube Live, and show us what you’ve built.

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BadgeLove meetup in SF on October 18

Replicating a Secure Phone Key

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Check out this entertaining talk by John McMaster from HDDG at Supplyframe SF: “Replicating a Secure Phone Key”:

 

For this month’s meetup, we’re going to be joined by John McMaster (@johndmcmaster). John is the Bay Area expert on decapsulating chips and disintegrating circuits. For this Meetup, he’ll be speaking about The Secrets of the NSA Phone Revealed! Actually, it’s more about reproducing a secure phone key with x-rays, micrometers, KiCad and a 3D printer.
Replicating a Secure Phone Key

Introducing our “After Dark” black FR-4 service

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Our new 2 layer “After Dark” service features black FR-4 substrate with clear soldermask to show off all those beautiful copper traces.

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Our “After Dark” service is the same cost as our 2 layer purple PCBs: $5 per square inch, which includes three copies of your design. For example, a 2 square inch board would cost $10 and you’d get three copies of your board. You can order as many copies as you want, as long as they’re in multiples of three.

Aaron (@TwinkleTwinkie) wrote a nice post on Hackaday.io about making:

PCB Art with OSHPark After Dark

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Here are some examples of “After Dark” from Twitter:

Introducing our “After Dark” black FR-4 service