Make A Badge When There Is No Badge Yet

What do you do when your keenly anticipated hacker camp releases details of its upcoming badge and you really want to have a go at coding for it, but there are no badges for you to try yet? If you are [Artdanion], this is not a problem, you simply build your own.

He found his requirement to interface with genuine hardware exceeded the abilities of the emulator that the SHACamp 2017 badge team had thoughtfully provided, so he reached for breakout boards for the ESP32, the MPR121 touch sensor, and the e-ink display, and assembled his own clone on a piece of stripboard. Not only did it provide him with enough to develop his own apps, he found when he brought it to the event that the public release of the official firmware ran on it with only a few configuration tweaks. He had an official event badge, that wasn’t the event badge. Is this the first time this has been done? We think it might be.

The home-made badge is an impressive piece of work, but it ties into an observation we made at the end of our review of the official version of the SHA2017 badge. The use of an ESP32 with well-designed peripherals and a solid firmware means that this is a design that is likely to form the bedrock upon which some future badges are built. [Artdanion] has proved how straightforward it is to clone, we’d like to be so bold as to make the prediction that we’ll see more developments of this platform at future events. Meanwhile this home-made badge is a neat achievement, and we can only imagine the surprise of the SHA2017 badge team on being presented with a clone of their work for reflashing.

The SHA2017 Badge Revealed

It’s that excellent time of year in which one slowly comes to the realisation that the summer’s eagerly anticipated events are now no longer at some impossibly distant point in the future, but in fact only a matter of a few months or even weeks away. For our European readers, this means that August’s SHA2017 hacker camp is appearing on the horizon, four days of outdoor technological indulgence for our community in a scout camp on the Dutch polders.

As it is a tradition of such events to have an electronic badge incorporating ever more impressive levels of computing power, it follows that the pre-production announcement of an event badge has become an important milestone in the countdown to the day. SHA2017 is no exception, and thus today we see the announcement of their take on the essentials for a hacker camp badge in 2017.

The most immediately obvious thing about the badge is its 296×128 pixel e-ink display, which should provide an immediate benefit in terms of battery life. There are the usual plethora of interfaces, GPIOs, USB, and Neopixels, and the user input is via a set of capacitive buttons. Powering the device is an ESP32, and a key design goal was to have a network for the badges that does not put pressure on the 2.4GHz infrastructure. We’re guessing they’re doing this using raw WiFi packets in the same way as the MAGfest swadge. On the software front it will provide a straightforward development route via MicroPython, and there will be an app library for those without the inclination to code their own. You can get an early look at the schematic from the project repo (PDF).

Their target is to have the badge ready and with stable software on day 1 of the event, a laudable aim if they can manage it.

Members of the Hackaday team will be making the trip to the Netherlands for SHA2017, we look forward to seeing you if you attend too, and please show us anything interesting you do with your badges! Keep your eyes peeled for the Jolly Wrench, and come say hello. You’ll find me with the OxHack contingent and giving a talk on the kit biz which I have also published in the Project to Kit series of articles.

We’ve covered so many badges here at Hackaday that we could almost serve of a retrospective exhibition of the art form. Of particular interest to us though is our own [Voja Antonic]’s badge for last year’s Hackaday SuperConference.

Thanks [Sebastius] for the tip.

Showing Off the Badge Hacks from SuperCon

Since the Beginning of Time* humans have been irresistibly attracted to the blinking of an LED. At first there was one LED and it was good, but eventually there were many working in unison and the matrix was formed. Badge hacking at the Hackaday SuperConference challenged everyone to do something interesting with the display matrix and other yummy hardware on this year’s badge and we were in awe of what people managed to pull off.

We named three winners, and recognized the first hacker to solve the Crypto Challenge. Check out the presentations in the video below and then join us after the break for a close look at each winning hack. Three winners received $256 and the crypto challenge winner received $512; two of them told Hackaday they plan to donate their prize to charity.

*we of course mark the beginning of time as the Unix Epoch

Continue reading “Showing Off the Badge Hacks from SuperCon”

The Fastest Path to SuperCon Badge Firmware Hacking

Hackaday SuperConference begins tomorrow and every ticketed attendee will get their hands on this sexy piece of hardware which is the conference badge. Yes, it looks fantastic hanging around your neck, you can play a wicked game of Tetris on it, and it runs a crypto challenge. But badge hacking is a thing and this post is the most concise information you’ll find on hacking on the firmware. Whether this is your first time blinking an LED, or you cut your teeth on PIC assembly, you can make this badge do your bidding with minimal effort.
Continue reading “The Fastest Path to SuperCon Badge Firmware Hacking”

Hacker’s Wishlist: What Must-Have Components Let You Build Anything?

We’re putting in a parts order at the end of the week, yet we don’t have a specific project in mind. Trying to wrap your noggin’ around a bill of materials to build anything is tough, but that’s the gist of stocking components for a hackathon.

So we put it to you: what components can’t you live without when you roll your sleeves up for some good old fashioned hardware hacking?

What Can You Build in Two Days?

multiplierThis parts order is for the badge hacking at this year’s SuperCon. What we saw last year was amazing considering the parts we had available. What you see above is the back of the conference badge with a lot of caps and diodes added to it. It’s a voltage multiplier that [Sprite_TM] built onto his badge to get the 9V input up to a 1000V output.

So diodes and caps, check. They’ll be on the order. But we want to know what you would add to a parts order where anything is possible? Let us know in the comments below.

Unlock Beast Mode

Part of the fun last year was starting from a badge that had no circuitry built onto it at all. [Brian Benchoff] joked in his coverage of the hacking that this year’s badge would just be a piece of copper clad FR4 — a great idea and challenge accepted. In addition to the normal badge, for those willing to test their mettle, we want you to go for Beast Mode. We’ll have copper clad (single and double-sided) and protoboard on hand.

We’re looking for Manhattan style, dead bug, and any other elegant, interesting, or hacky method of rapid prototyping. Bring along your own pre-spun or home-etched boards — if they’re not already populated you can do that in the badge hacking area. If you want to learn the awesome X-Acto knife method of carving up copper clad, Zach Fredin will be helping out in the badge hacking area. You’ll also find Voja Antonic, Paul Stoffregen, and others hanging out there too.

But What About the Badge?

2016-supercon-badge-circuitYes, there is a hardware badge and it’s a doozy this year. Voja Antonic designed it and published a great explanation last week. It’s based around a PIC18LF25K50 and features an LED Matrix and user inputs. This will be a lot of fun for the firmware hackers, but why not get in on the hardware hacking action while you’re at it?

The back of the badge has a 9-bin breakout header (2x 3V, 2x Gnd, 5x GPIO). This pin header is 0.1″ pitch so you can design in advance for any add-on circuits you might want to build. We’ll also have connectors on hand to use in your hacks.

Last year Paul Stoffregen’s Teensy audio workshop was hugely popular and one of the most interesting badge hacks added a Teensy, audio board, and LCD to the mix to create a spectrum analyzer with waterfall display. I’m sure we’ll see some hacks that reach that level this year. But it’s a welcoming and jovial environment; even if you never blinked an LED there will be throngs of people waiting to cheer your accomplishment in the name of getting everyone in the world excited about hardware.

Seriously Though, What Components Should We Order?

Tools are going to be no problem this year since we have the Supplyframe Design Lab at our disposal. But we really are putting in a parts order this week and need your advice. We’ll have the usual suspects: pin headers, shift registers, voltage regulators, level converters, 7400 series logic and 555 timers, extra battery holders, passives, etc.

Even if you’re not in on the hacking, let us know what you can’t live without. What’s your analog hacking wishlist? What type of sensor breakouts would you like to see people playing with? Sound off in the comments below.

Design and Hacking Drilldown: SuperCon Badge

One can imagine a political or business conference without an interactive badge — but not a hacker conference. Does this make the case for hackers being a special breed of people, always having something creative to show for their work? Yes, I think it does.

Following the Hackaday Belgrade conference in April of this year, we met at the Supplyframe offices to discuss the badge for the Hackaday SuperConference that will happen in Pasadena on 5+6th of November. The Belgrade conference badge (which was fully documented if you’re curious) was surprisingly popular, and I was asked to design the new one as well.

I was prepared to come up with something completely new, but [Mike Szczys] suggested keeping with the same basic concept for the project: “No reason to change anything, we have a badge that works”. To which I responded: “Well, the next one will also work”. But then I realized that “works” does not stand for “being functional”. The key is that it was embraced by visitors who played with it, coded on it, and solved a crypto challenge with it.

The World Doesn’t Have Enough LEDs

led-modules-versus-smdFast forward six months — here are the modifications made to the basic concept. First, the existing LED matrix, which was composed of two compact 8×8 blocks, was replaced by 128 discrete SMD LEDs. It was a much needed change to help scale down the dimensions and clunkiness, but also to avoid another painful experience of trying to purchase and have the matrix displays shipped, which seriously threatened the production of the previous badge.

It’s a long story which I discussed in my Belgrade talk — it turned out we did not manage to get enough common anode (CA) displays from all distributors in the whole world. We had a plan B, which also fizzled, leaving us with the plan C which actually included two “C”s: Common Cathode. We cleaned up all the supplies at five distributors, and managed to get 122 CA red, 340 CC red and 78 CA green displays (enough for only 270 badges) — the entire world supply. After that, you couldn’t get any 38 mm Kingbright’s display for months! The only problem was that there were two different versions of PCBs, one for CA and the other for CC displays, but luckily only one version of software, as it could autodetect the display type.

accelerometer-on-the-boardMotion and Expansion

So, what else was new in the concept? In the Belgrade version, the badge supported an accelerometer module and included an unpopulated footprint in case you decided to install it, but now the badge has the MEMS chip LIS3 as an integral part. There are nine pads (with five I/O ports, driven directly from the MCU) to which you can add a 9-pin expansion connector. There will be a number of these connectors at the Design Lab, so that anyone can expand their badge for their convenience, on the spot.

The Visual Design

The biggest change was in the visual design. What we came up with ended up being a fair bit smaller, lighter, with a more convenient shape, and less than half the thickness of the previous one. After we had scrapped quite a few ideas during the development process (including stylized skull, frog, etc), we were left with a couple of options which you can see on the image below. The wireframe drawing on the left hand side is the Belgrade badge, shown here for a size comparison. At this point the locale and date of the conference weren’t yet definitive, which is why you see San Francisco written on the images.


Design number 4 prevailed, so the PCB layout could begin. I don’t like autorouted PCBs, so I was in for quite a rough time trying to solve the routing manually having only 2 layers on the board at my disposal.

Routing a Compact LED Matrix

The LED matrix is so dense that there was virtually no room on the LED layer, so most of the tracks on the component layer had to be routed as if it was a single layer PCB. To make matters worse, the LED layer is routed as a matrix, with a bunch of horizontal and vertical tracks, otherwise a good reason to use a 4-layer PCB. To stay inside the budget, everything had to be placed on 2 layers, and that’s why the final result seems so confusing at the populated area between batteries:

Continue reading “Design and Hacking Drilldown: SuperCon Badge”

New SuperCon Badge is 40% Lighter and a Work of Art

The 2016 Hackaday SuperConference is just around the corner and today we get a good look at the hardware badge. It was designed by [Voja Antonic] — a legend of hardware creation who will be at the conference. I like to think of him as the Woz of the Eastern Bloc, having designed the Galaksija computer. This badge is a beautiful example of embedded design. We’ll dive into all of the details after the break.

Get your ticket now for 48-hours of talks, workshops, the Hackaday Prize party, badge hacking,  and so much more.

Continue reading “New SuperCon Badge is 40% Lighter and a Work of Art”