Clever PCBs Straighten Out The Supercon SAO Badge

When we decided that Simple Add-Ons (SAOs) would be the focus of Supercon 2024, it was clear the badge would need to feature more than just one or two of the requisite connectors. We finally settled on six ports, but figuring out the geometry of getting all those ports on the badge in such a way that the SAOs wouldn’t hit each other was a bit tricky. In early concept drawings the badge was just a big rectangle with the ports along the top, but it was too ugly.

In the end we went with a somewhat organic design — an electronic “flower” with the radially arranged SAOs forming the petals, but this meant that that none of the SAOs were in the traditional vertical orientation. Luckily, [Adrian Studer] designed a couple of PCBs that not only resolve this issue, but add a seventh SAO port for good measure.

In the project repository you’ll find two PCB designs. The first, “SAO Up” is essentially a little arm that turns the SAO port 90 degrees. This doesn’t exactly get them vertical, in fact, whether or not the new orientation is actually an improvement for the top two SAOs is perhaps debatable. But it definitely helps on the lower SAOs, which are essentially upside down in their original configuration.

The real star of the show is “SAO Bridge”, a wavy board that connects across the two midline SAO ports on the Supercon badge and turns it into a set of three (nearly) horizontal connectors across the front. The center port is particularly helpful in that it gives you a place to put unusually wide SAOs.

As a reminder the Supercon SAO badge, and the winners of the 2024 SAO Contest, will be making the trip across the pond for Hackaday Europe in just a few months. That means you’ve still got plenty of time to have a few of these CERN-OHL-P licensed boards made up.

A New Life For A Conference Badge, Weighing Bees

We love electronic conference badges here at Hackaday, but it’s undeniable that many of them end up gathering dust after the event. Most of them are usable as development boards though, so it’s nice to see them appear in projects from time to time. [Benjamin Blundell] has a good one, he’s using an EMF Camp 2014 badge to power a set of load cells in a bee scale.

Not being skilled in the art of apiary here at Hackaday we’re thankful for his explanation. Beekeepers weigh their hives as a means of gauging their occupancy, and the scale for this purpose has a few application specific features. The EMF 2014 badge (known as the TiLDA MKe) meanwhile is an Arduino Due compatible ARM Cortex M0 board with an LCD display, making it perfect for the job. He devotes quite some time to describing the load cells, mounting them on extrusion, and calibration, all of which should be of use to anyone making a scale.

The software for the badge is an odd mix of Arduino and FreeRTOS, and he takes one of the stock apps and modifies it for the scale. It’s very much a badge of its era, being programmable but not with a built-in interpreter for MicroPython or similar. You can see the whole project at work in the video below the break.

If you’ve not seen a TiLDA MKe before, we wrote about it when it was released.

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FREE-WILi Turns DC32 Badge Into Hardware Dev Tool

With few exceptions, electronic event badges are often all but forgotten as soon as the attendee gets back home. They’re a fun novelty for the two or three days they’re expected to be worn, but after that, they end up getting tossed in a drawer (or worse.) As you might imagine, this can be a somewhat depressing thought thought for the folks who design and build these badges.

But thanks to a new firmware released by the FREE-WILi project, at least one badge is going to get a shot at having a second life. When loaded onto the RP2350-powered DEF CON 32 badge, the device is turned into a handy hardware hacking multi-tool. By navigating through a graphical interface, users will be able to control the badge’s GPIO pins, communicate over I2C, receive and transmit via infrared, and more. We’re particularly interested in the project’s claims that the combination of their firmware and the DC32 badge create an ideal platform for testing and debugging Simple Add-Ons (SAOs).

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The Badge Hacks Of Supercon

We just got home from Supercon and well, it was super. It was great to see everyone, and meet a whole bunch of new folks to boot! The talks were great, and you can see a good half of them already on the Hackaday YouTube channel, so for that you didn’t even have to be there.

The badge hacks were, as with most years, out of this world. I’ll admit that my cheeks were sore from laughing so much after emceeing it this year, due in no small part to two hilarious AI projects, both of which were also righteous hacks in addition to full-on comedy routines. A group of six programmers got all of their hacks working together, and the I2C-to-MQTT bridge had badges blinking in sync even in the audience. You want blinkies? We had blinkies.

But the hack that warmed everyones’ hearts was “I figured it out” by [Connie]. Before this weekend, she had never coded MicroPython and didn’t know anything about I2C. But yet by Sunday afternoon, she made a sweet spiral animation on the LED wheel, and blinked the RGBs in the touchwheel.

What I love about the Hackaday audience is that, when the chips are down, someone doing something new for the first time is valued as much as some of the more showy work done by more experienced programmers. Hacking is also about learning and pushing out boundaries after all. The shouts for “I figured it out” were louder than any others in the graphics hacks category, it took home a prize, and I was smiling from ear to ear.

Hackaday can learn from this too. [Connie]’s hack definitely shows the need for another badge-hack category, first timers, because we absolutely should recognize first tries. There was also a strong petition / protest from people who had worked new hacks onto previous year’s badges – like [Andy] and [koppanyh]’s addition of bit-banged I2C to the Voja 4 badge from two years ago, and [Instant Arcade]’s Polar Pacman, which he named “Ineligible for this Competition” in protest. Touche.

We’re stoked to learn new things, see new hacks, and basically just catch up with everything folks did over the weekend. We can’t wait to see what you’re up to next year!

Supercon 2024: Badge Add-On Winners

This year we challenged the Hackaday community to develop Shitty Simple Supercon Add-Ons (SAO) that did more than just blink a few LEDs. The SAO standard includes I2C data and a pair of GPIO pins, but historically, they’ve very rarely been used. We knew the talented folks in this community would be able to raise the bar, but as they have a tendency to do, they’ve exceeded all of our expectations.

As we announced live during the closing ceremony at the 2024 Hackaday Supercon, the following four SAOs will be put into production and distributed to all the attendees at Hackaday Europe in Spring of 2025.

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Supercon 2024 Flower SAO Badge Redrawing In KiCad

Out of curiosity, I redrew the Supercon Vectorscope badge schematics in KiCad last year. As you might suspect, going from PCB to schematic is opposite to the normal design flow of KiCad and most other PCB design tools. As a result, the schematics and PCB of the Vectorscope project were not really linked. I decided to try it again this year, but with the added goal of making a complete KiCad project. As usual, [Voja] provided a well drawn schematic diagram in PDF and CorelDRAW formats, and a PCB design using Altium’s Circuit Maker format (CSPcbDoc file). And for reference, this year I’m using KiCad v8 versus v7 last year.

Importing into KiCad

This went smoothly. KiCad imports Altium files, as I discovered last year. Converting the graphic lines to traces was easier than before, since the graphical lines are deleted in the conversion process. There was a file organizational quirk, however. I made a new, empty project and imported the Circuit Maker PCB file. It wasn’t obvious at first, but the importing action didn’t make use the new project I had just made. Instead, it created a completely new project in the directory holding the imported Circuit Maker file. This caused a lot of head scratching when I was editing the symbol and footprint library table files, and couldn’t figure out why my edits weren’t being seen by KiCad.  I’m not sure what the logic of this is, was an easy fix once you know what’s going on. I simply copied everything from the imported project and pasted it in my new, empty project. Continue reading “Supercon 2024 Flower SAO Badge Redrawing In KiCad”

Hackaday Podcast Episode 294: SAO Badge Reveal, Precision On A Shoestring, And The Saga Of Redbox

With the 2024 Hackaday Supercon looming large on the horizon, Editors Elliot Williams and Tom Nardi start this episode off by talking about this year’s badge and its focus on modular add-ons. From there they’ll go over the results of a particularly challenging installment of What’s that Sound?, discuss a promising DIY lathe that utilizes 3D printed parts filled with concrete, and ponder what the implosion of Redbox means for all of their disc-dispensing machines that are still out in the wild.

You’ll also hear about custom macropads, lifting SMD pins, and how one hacker is making music with vintage electronics  learning kits. Finally, they’ll reassure listeners that the shifting geopolitical landscape probably won’t mean the end of Hackaday.io anytime soon, and how some strategically placed pin headers can completely change how you approach designing your own PCBs.

Check out the links below if you want to follow along, and as always, tell us what you think about this episode in the comments!

Download in DRM-free MP3.

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