KiCAD has been making leaps and bounds recently, especially since CERN is using it almost exclusively. However, while many things are the same, just enough of them are different from our regular CAD packages that it’s hard to get started in the new suite.
[Chris Gammell] runs Contextual Electronics, an online apprenticeship program which goes from concept to assembled electronics covering everything in between. To take the course you pay a nominal fee, but [Chris] posted a very excellent ten-part video series made during the last run of classes which you can watch without charge. The videos go through the basics of KiCAD while hitting the major points to consider when designing and manufacturing your electronics.
The project [Chris] chose is a simple circuit that blinks an LED with a 555. The first videos cover navigating KiCAD’s component schematic editor and library system. Next comes creating circuit schematics and component footprint creation. [Chris] covers PCB layout, the generation of Gerber files, and finally ordering the design from OSH Park — the purveyors of purple boards we’ve come to know and love. The series finishes up with simulating the circuit in LTSpice, ordering the parts, and finally soldering and debugging of the board. If all goes correctly you should now have a single blinking LED.
If the bright summer sun is burning your delicate skin, and you’d rather be locked inside with solder fumes, add this to your watch list now!
Continue reading “It’s Time to Finally Figure Out How to Use KiCAD”
Chris Gammell is a guy that should need no introduction around these parts. He’s a co-host on The Amp Hour, and the guy behind Contextual Electronics, a fabulous introduction to electronics and one of the best ways to learn KiCad. If you want to talk about the pedagogy of electronics, this is the guy you want.
Chris’ talk at the Hackaday | Belgrade conference was on just that – the pedagogy of electronics. Generally, there are two ways to learn how to blink an LED. The first, the bottom-up model taught in every university, is to first learn Ohm’s law, resistance, current, voltage, solve hundreds of resistor network problems, and eventually get around to the ‘electrons and holes’ description of a semiconductor. The simplest semiconductor is a diode, and sometime in the sophomore or junior year, the student will successfully blink a LED.
The second, top-down method is much simpler. Just wire up a battery, resistor, switch, and LED to a breadboard. This is the top-down model of electronics design; you don’t need to know everything to get it to work. You don’t need to do it with a 555, and you certainly don’t have to derive Maxwell’s equations to make something glow. Chris is a big proponent of the top-down model of learning, and his Belgrade talk is all about the virtues of not knowing everything.
Continue reading “JIT Learning Using Expert Systems”
Teams hacking on hardware won big this weekend in New York. There were ten teams that answered Hackaday’s call as we hosted the first ever hardware hackathon at the Tech Crunch Disrupt NYC. These teams were thrown into the mix with all of the software hackers TC was hosting and rose to the top. Eight out of our ten teams won!
As we suspected, having something physical to show off is a huge bonus compared to those showing apps and webpages alone. Recipe for awesome: Mix in the huge talent pool brought by the hardware hackers participating, then season with a dash of experience from mentors like [Kenji Larson], [Johngineer], [Bil Herd], [Chris Gammell], and many more.
Out of over 100 teams, first runner-up went to PicoRico, which built a data collection system for the suspension of a mountain bike. The Twillio prize went to Stove Top Sensor for Paranoid, Stubburn Older Parents which adds cellphone and web connectivity to the stove, letting you check if you remembered to turn off the burns. The charismatic duo of fifteen-year-olds [Kristopher] and [Ilan] stole the show with their demonstration of Follow Plants which gives your produce a social media presence which you can then follow.
We recorded video and got the gritty details from everyone building hardware during the 20-hour frenzy. We’ll be sharing those stories throughout the week so make sure to check back!
Update: We have it figured out. We’re bringing the awesome at The Blind Donkey in Pasadena, CA at 6pm this evening. Stop in with your hardware and your war stories. Chris Gammell, Mathieu Stephan, and I can’t wait to talk
Arduino hardware hacking with you!
I’m getting to meet all kinds of cool people in person this year, and so can you! Well… if you happen to be in Pasadena, California on Wednesday after work and have nothing better to do. [Chris Gammell] — well-known for The Amp Hour and Contextual Electronics — and I are both going to be in town. We’re meeting up for a beer and thought we’d invite you along for the fun.
Details are scarce right now. I’m not sure of time or place (other than Pasadena area) so make sure you follow @Hackaday on Twitter and watch for the #HaD_meetup tag Wednesday afternoon for the details. We’ll also update the Hackaday Projects event page at the time. I’ll bring along some swag; you’d better cart along a piece of hardware to show off in return for a t-shirt or stickers. You’re on your own for food and beverages at this one.
Wondering what I meant about meeting lots of cool people? In addition to the nearly 500 awesome readers who showed up at The Gathering, I met [Brian] and [Eliot] for the first time.
[Chris Gammell] tipped us off that he’s building an online training program for learning electronics. The ten session course will cost money to take but you can get the goods for free if you’re one of the beta testers. We love to listen to The Amp Hour podcast which is just one of [Chris’] many endeavors.
Did you buy a Chromecast this week? We did, but we don’t have it in hand yet (ordered through Amazon). You can still get a look inside from the iFixit teardown.
Practice your Processing skills by using it to code a game of Pong.
A bit of lighter fluid and a hacked insert will get you a flaming wallet. We guess this is a different type of an anti-pickpocket device. [Thanks Stephen]
[Brain] used a $1.50 magnifying lens to help his Raspberry Pi camera module read QR codes better.
We really like [Aaron Christophel’s] LED matrix clock (translated). He started from a marquee that must be at least a decade old. He stripped it down and figured out how to drive it using a Sanguino as a controller.