Harnessing Your Creativity Hack Chat

November 16, 2020 by Dan Maloney No comments

Join us on Wednesday, November 18th at noon Pacific for the Harnessing Your Creativity Hack Chat with Leo Fernekes!

(Note: this Hack Chat was rescheduled from 10/14/2020.)

You’re sitting at your bench, surrounded by the tools of the trade — meters and scopes, power supplies and hand tools, and a well-stocked parts bin. Your breadboard is ready, your fingers are itching to build, and you’ve got everything you need to get started, but — nothing happens. Something is missing, and if you’re like many of us, it’s the one thing you can’t get from eBay or Amazon: the creative spark that makes innovation happen.

Creativity is one of those things that’s difficult to describe, and is often noticed most when it’s absent. Hardware hacking requires great buckets of creativity, and it’s not always possible to count on it being there exactly when it’s called for. It would be great if you could somehow reduce creativity to practice and making it something as easy to source for every project as any other commodity.

While Leo Fernekes hasn’t exactly commoditized creativity, judging from the breadth of projects on his YouTube channel, he’s got a pretty good system for turning ideas into creations. We’ve featured a few of his builds on our pages, like a discrete transistor digital clock, the last continuity tester you’ll ever need, and his somewhat unconventional breadboarding techniques. Leo’s not afraid to fail and share the lessons learned, either.

His projects, though, aren’t the whole story here: it’s his process that we’re going to discuss. Leo joins us for this Hack Chat to poke at the creative process and see what can be done to remain rigorous and systematic in your approach but still make the process creative and flexible. Join us with your questions about finding the inspiration you need to turn parts and skills into finished projects that really innovate.

Our Hack Chats are live community events in the Hackaday.io Hack Chat group messaging. This week we’ll be sitting down on Wednesday, November 18 at 12:00 PM Pacific time. If time zones baffle you as much as us, we have a handy time zone converter.

Click that speech bubble to the right, and you’ll be taken directly to the Hack Chat group on Hackaday.io. You don’t have to wait until Wednesday; join whenever you want and you can see what the community is talking about.

Continue reading “Harnessing Your Creativity Hack Chat” →

Get Over Your Fears

October 24, 2020 by Elliot Williams 23 Comments

Some projects are just too complex, that’s for sure. But I’d be willing to bet that some things you think are too difficult actually aren’t, and it may be that all you need to get over your personal hurdle is a good demonstration. Here come three cases in point.

I was looking at the new Raspberry Pi Compute Module last weekend. They have a whole bunch of high-speed traces: things like Gigabit Ethernet, HDMI, and those crazy-fast SDI serial camera interfaces. I have no experience in high-speed design and layout at all, and frankly it gives me the willies. But the Raspberries also shipped me an IO demo board, and concomitant KiCAD design files, with the review board. Looking at it, they were just wires — maybe pairwise length-matched and impedance controlled — but also just wires. Opening up the KiCAD board file and clicking on the traces just like I do with my own designs, I’m a lot less scared. That was a revelation for me.

In a great writeup of his experience building ten different Linux single-board-computers from scratch, Jay Carlson had a similar effect on me. I would never have considered breaking out the hotplate for some CPU-and-DRAM action, and I’ve never had to lay out a PCB with a high density BGA chip before either. I’m not quite into Dunning-Kruger territory yet; I still have a healthy respect for the layout intricacies in fanning out a tight BGA CPU into a DRAM. But Jay’s frank assessments of what is easy and what is hard make it all seem within the realm of the doable.

As Mike and I were talking on the podcast about Jay’s work, Mike came clean about his fear of BGAs. I’ve done enough reflow-plate soldering, with parts that have a lead pitch that’s a factor of two finer than the 0.8 mm pitch BGAs in question, so it doesn’t seem implausible to me. And I’m 100% sure Mike could pull it off too, but he is in need of a BGA guru. Any good hobbyist videos out there?

Being a nerdy type, I’m much more focused on the knowledge and the inspiration, but maybe the courage is equally important — at least I think I undervalue it. I don’t need to lay out HDMI lines, or build a from-scratch Linux box, but I am no longer afraid that I couldn’t, and that’s because I’ve seen detailed examples of fellow hackers who’ve done the same. I might not get it right on the first shot, but I’m not afraid to try, and I wouldn’t have said the same before looking over other folks’ shoulders. Forza e corragio!

Add Creativity To Your BOM: Hack Chat

October 12, 2020 by Dan Maloney 1 Comment

Join us on Wednesday, October 14th at noon Pacific for the Harnessing Your Creativity Hack Chat with Leo Fernekes!

Our Hack Chats are live community events in the Hackaday.io Hack Chat group messaging. This week we’ll be sitting down on Wednesday, October 14 at 12:00 PM Pacific time. If time zones baffle you as much as us, we have a handy time zone converter.

Continue reading “Add Creativity To Your BOM: Hack Chat” →

Seeing The Skill Is Better Than Seeing The Project

August 22, 2020 by Mike Szczys 12 Comments

Pulling off a flashy project that gets the viral-media hug of widespread approval feels great. Getting there is no easy path to walk and often times the craft that went into a finished project doesn’t even take the back seat but gets no mention at all. Often I find I’m more impressed by — or a least my attention is more strongly captured by — the skills put on display as prominently as the finished build.

Case-in-point this week comes from the model railroad work of [Diorama111]. Seeing an OLED screen in the nose of an HO scale locomotive just like the real-life version is impressive, but how many people missed the one-off soldering masterpiece that went into this one? You’ll marvel at the SMD techniques used with through-hole protoboard on this one.

Occasionally we do get to look over the shoulder of the master as decades of skills are shared for the purpose of passing them on. So was the case back in May when we watched as [Leo] walked through his tips and tricks for prototyping at the electronics bench. This included a lot of non-obvious but clever stuff; tips on working with copper tape for solder buses, using Teflon tubing with bare wire instead of stripping PVC-insulated wire, and a deep dive into copper clad prototyping.

So remember all of us hardware geeks when you look to tell the story of your project. We want to know how it was done at least as much as what was done. There was a time when electronic designers were a separate work group from electronic technicians (and wow, those technicians were in a league of their own). These days we all have that technician hat hanging on our workbenches and I’m always interested in packing in yet another unlearnt skill. Throw us a bone!

Hammer Seeks Nail

August 15, 2020 by Elliot Williams 22 Comments

People sometimes say “when you have a hammer, everything looks like a nail” as if that were a bad thing. Hitting up Wikipedia, they’re calling it the Law of the Instrument or Maslow’s Hammer and calling it a cognitive bias. But I like hammers…

I’m working on a new tool, a four-axis hot-wire foam cutter based roughly on this design, but built out of stuff in my basement so far. I want it primarily to turn out wings for RC airplanes so that I can play around with airfoils and construction methods and so on. But halfway through building this new “hammer”, I’m already getting funny ideas of other projects that could be built with it. Classic nail-seeking behavior.

And some of these thoughts are making me reconsider the design of my hammer. I originally wanted to build it low, because it’s not likely that I’ll ever want to cut wing sections taller than 50 mm or so. But as soon as cutting out giant letters to decorate my son’s room, or maybe parts for a boat hull enter my mind, that means a significantly taller cutter, with ensuing complications.

So here I am suffering simultaneously from Maslow’s Hammer and scope creep, but I’m not sad about either of these “ills”. Playing with a couple manual prototypes for the CNC hot-wire cutter has expanded my design vocabulary; I’ve thought of a couple cool projects that I simply wouldn’t have had the mental map for before. Having tools expands the possible ways you can build, cognitive bias or not.

One person’s scope creep is another’s “fully realizing the potential of a project”. I’m pretty sure that I’ll build a version two of this machine anyway, so maybe it’s not a big deal if the first draft were height-limited, but the process of thinking through the height problem has actually lead me to a better design even for the short cutter. (Tension provided by an external bow instead of born by the vertical CNC towers. I’ll write the project up when I’m done. But that’s not the point.)

Maybe instead of lamenting Maslow’s cognitive bias, we should be celebrating the other side of the same coin: that nails are tremendously useful, and that the simple fact of having a hammer can lead you to fully appreciate them, and in turn expand what you’re capable of. As for scope creep? As long as I get the project done over my vacation next week, all’s well, right?

Nothing Comes From Nowhere

June 27, 2020 by Elliot Williams 19 Comments

How do you come up with new ideas? As much as it sometimes seems like they arrive in a flash out of the blue, they don’t just come out of nowhere. Indeed, we all have well-stocked mental toolboxes that say “this thing can be used to do that” and “if you want to get there, start here”.

One incredibly fertile generator of “new” ideas is simply putting old ideas next to each other and realizing that a chain of two or three can get you to someplace new. It just happened to me while listening to Mike and myself on this week’s Hackaday Podcast.

Here’s the elevator pitch. You take something like the player-pianoesque MIDI barrel piano that we featured last Thursday, and mix it together with the street-painting bicycle trailer that we featured on Friday. What do you get? A roll of paper that can be drawn on by normal kids, rolled up behind a bicycle, with a tank that they can pressurize with a bike pump, that will spray a pixelated version of their art as they roll down the sidewalk.

Now how can I make this real? One of my neighbors has a scrap bike trailer…

But see what I mean about ideas? I just took two existing ideas and rubbed them together, and in this case, they emitted sparks. And I’ve got a mental catalogue of all of the resources around me, some of which fell right into place. This role as fountain of good proto-ideas is why I started reading Hackaday fifteen years ago, and why it’s still a daily must-read for folks like us everywhere. A huge thank you to everyone who’s sharing! Read more Hackaday!

The Game That Launched 1,000 Hackers

April 18, 2020 by Elliot Williams 6 Comments

John Conway passed away this week. Even if you don’t know much about mathematics, you will probably know nearly everyone’s favorite cellular automata ruleset: Conway’s “Game of Life”. It’s so much a part of our cultural history, that proto-hacker Eric Scott Raymond suggested using the glider as the hacker emblem.

The idea that a very simple set of rules, applied equally and everywhere, could result in “life” was influential in my growth as a young hacker, and judging from the comments on our article about Conway, I’m not alone. But I won’t lie: I was a kid and thought that it could do much more than make pretty patterns on the screen. I was both right and wrong.

Although amazingly complex machines can be built in Conway’s Life, just check out this video for proof, in the end no grand unifying theory of cellular automata has emerged. As a research topic Conway’s chosen field of mathematics, cellular automata is a backwater. It didn’t really go anywhere. Or did it?

Implementing Conway’s Life in BASIC on a Tandy Color Computer was one of the first things that launched me on my geeky path. It ranks with MENACE: the matchbox-based machine learning algorithm from the 1960’s and an introduction to Markov Chains in the form of a random text generator in my young algorithmic life, all of which I incidentally read about in Martin Gardner’s column in “Scientific American”. Conway’s Life, along with some dumb horse-race game, also taught me about bad random-number generators: the screen would populate the same “randomly” every time on the old CoCo.

So maybe Conway didn’t want to be remembered just for his “Life” because it was a bit of a mathematical dead-end. But in terms of its impact on the world, an entire generation of hackers, and my own personal life, it was able to fill up significantly more than a screen full of pixels. Here’s to Conway, his “Life”, and everyone else who is inspiring the next. You’re not just gliders, you’re glider guns!

[Game of Life example shown in this article is John Conway’s Game of Life – 1.0 written in Python by Nick Jarvis and Nick Wayne]