Improving A Conference Badge With 3D Printing

The obsession with over-the-top-hardware conference badges means that we as attendees get to enjoy a stream of weird and wonderful electronic gadgets. But for the folks putting these conferences on, getting a badge designed and manufactured in time for the event can be a stressful and expensive undertaking. To keep things on track, the designs will often cut corners and take liberties that you’d never see in commercial products. But of course, that’s part of their charm.

As a case in point, the OLED display on the 2019 KiCon badge is held on with just four soldered header pins, and can easily be bent or even snapped off. So [Jose Ignacio Romero] took it upon himself to develop a 3D printable mount which integrates with the PCB and gives the display some mechanical support. Any KiCon attendees who are looking to keep their badge in peak fighting condition for the long haul might want to start warming their extruders.

The design of this upgrade was made all the easier thanks to the fact that the KiCon badge is (naturally) open hardware. That meant [Jose] could import the PCB files directly into FreeCAD and have a virtual model of the badge to work with. This let him check the clearances and position of components without having to break out the calipers and measure the real thing.

Playing around with the virtual assembly, [Jose] quickly realized that the mounting holes in the OLED display don’t actually line up with the holes in the PCB; potentially why the screen didn’t get mounted on the final hardware. Once this misalignment was characterized, he was able to factor it into his design: the PCB side gets screwed down, and the screen snaps into printed “nubs” on the top of the mount.

Hackaday Editor-in-Chief [Mike Szczys] was on hand for KiCon 2019, and was kind enough to share the experience with those of us who couldn’t make it in person, including his own bout of hacking this very same badge.

Apple 1 Emulator Is A Perfect Fit For Supercon Badge

Supercon badge hackers had to be ready to present their show-and-tell by 6 pm Sunday evening. This ruthless unmoving deadline meant every badge hack on stage represents an accomplishment in time management, and some luck, in addition to their own technical merits. But that deadline also meant a few fantastic projects lost their race against the clock. We were rooting for [Jac Goudsmit] to build an Apple I emulator as his badge expansion, but he wasn’t quite done when our badge hack ceremony began. After Supercon he went home, finished the project, and documented everything in a detailed writeup.

Our 2018 Supercon badge is built on a retro-computing theme, and the default firmware came with a BASIC interpreter as well as a Z80 emulator running CP/M. So an Apple 1 emulator should feel right home with its contemporaries. Mechanically speaking, all the parts were a tight fit on the badge expansion board given out to every attendee at Supercon. So tightly that [Jac] had to file down the two main chips in order to fit them side by side. The breadboard-like pattern of connected holes on the expansion board, intended to help ease in beginners for their badge hack soldering, proved to be an inconvenience in tightly packed arrangements such as this.

With all the work [Jac] had invested, it was heartbreaking to know he was only five minutes of soldering and 30 minutes of coding away when time ran out. Time pressure was part of the challenge faced by every Supercon badge hacker, and while we’re sad [Jac] missed the deadline for stage time we’re happy to see him finish and write it all up. We hope every badge hacker would write up their stories of frantic weekend projects. Those who do so on hackaday.io are encouraged to tag their project with “Supercon” and get them added to our list of badge hacks for everyone to admire.

Supercon Badge Hackers Racing The Clock

At the end of Hackaday Superconference weekend, we hold a badge hacking ceremony on the main stage where anyone who has done anything with their badge is invited to come on stage and show off their work. Yes, even if it’s just a blinking LED! It was a tremendous pleasure to see not only people taking us at our word and presented blinking LEDs, but that the community in the room welcomed these inductees to hardware hacking with cheers. Before the ceremony, though, there was a lot of frantic work by badge hackers armed with soldering irons and fueled by caffeine. It’s always amazing how much people can accomplish in a single focused weekend.

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Green LED Means GO For Supercon Badge Hacking

In addition to great speakers and enlightening workshops at Supercon, we have an area set aside for attendees to hack on their conference badges. There is no prerequisite beyond having a badge and a willingness to get hands-on. From hardware beginners to professional embedded system developers, we welcome all skill levels!

The image above is a free-form LED light sculpture by [4C1dBurn], who had just learned to solder and this is how a new skill was put into practice. In the background is the badge hacking arena: 7 tables set up in a row with 6 seats per table. The doors opened at 9AM and almost all the seats were filled by 9:30AM. There’s a constant flow as people leave to attend a talk or workshop, and others arrive to fill the vacancy.

In our hardware hacking overview, we shared an example of an LED array controlled by badge using shift registers. Several badge hackers built on top of this idea. [X] is making a version for surface mount LEDs, and [macegr]’s variant incorporated an USB-to-serial adapter on board to reduce wire clutter. He calls it a “quality of life improvement” and we think it’s brilliant.

Any reduction in wire clutter can only help with the many glorious explosions of wires scattered about. This particular example is a work-in-progress by [carfucar] turning a badge into wireless remote for a large array of WS2812B LED strips.

Heeding our call to action in the hardware hacking overview, there are at least two efforts underway to add wireless communication capability to the badge. [Preston] is making good progress teaching a badge to talk to an AVR-IoT module. [morgan] and [Ben] are building a mesh network using ESP32s. If it gets up and running, they’ve brought a bunch of ESP32s to add more nodes to their network.

For the talks currently on stage, go to the Supercon event page and click “Livestream” in the upper right corner for the official live stream. Badge hacking will continue all through Supercon, parts of which will be visible through unofficial livestream of badge hacking from attendees like [X]’s robot [Sharon].

Supercon Badge Hardware Hacking: Here’s What To Bring

Hackaday Superconference is just a week away (precious few tickets remain), a celebration of all things Hackaday, which naturally includes creative projects making the most of their hardware. Every attendee gets a platform for hacking in the form of the conference badge.

To make the most of your badge hacking fun, plan ahead so you will have the extra components and the tools you need. At the most basic, bring along a serial to USB cable and a PIC programmer. These are common and if you don’t own them, ask around and you will likely be able to borrow them. Now is also the time to put in a parts order for any components you want to use but don’t have on hand!

The badge is hackable without any extras, but it’s designed for adding hardware and hacking the firmware. We’re excited to see what you can do with it. We gave an overview of this retro themed pocket computer a few days ago, today we’re inviting you to exploit its potential for your hardware hacks.

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The Supercon Badge Is A Freakin’ Computer

It hangs around your neck, comes with the cost of admission, and would blow away a desktop computer from the 1980’s. This is the Hackaday Superconference badge and you can get your hands on one for the price of admission to the ultimate hardware conference.

Everyone through the door gets one of these badges featuring a 320 x 240 color display, a full qwerty keyboard, and limitless hacking potential! The stock firmware runs a BASIC interpreter, the CP/M operating system, and includes games and Easter Eggs. It’s a giant playground, and we want to see what you can do with this custom hardware during the three days of Supercon. Get your ticket now, then join me after the break for a demo video and plenty more info.

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First Look At DEF CON 26 Official Badge

To the delight of everyone, this year’s official DEF CON badge is an electronic badge chock full of entertainment. Of course there is blinky, the board is artistic, and everyone hopefully maybe gets one (it’s rumored 27,000+ were manufactured) if they don’t run out. But the badge contest at DEF CON is legendary — solve all the puzzles you are awarded the coveted black badge.

The creators of this badge are no strangers to the Hackaday community. Displayed proudly on the board and in the firmware, we discover that The Toymakers are the ones who have put it all on this line this year. Kudos to the dynamic hardware collective from Minnesota. There is no larger pressure cooker in the world of badges than this, and they pulled it off marvelously. Let’s take a look at all the goodies inside.

Most importantly, become a team member of the Hackaday.io DC26 badge solving project page to help discover all that’s involved in this badge. Okay, now let’s dive in!

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