Last Build Date: Tue, 25 Oct 2016 23:09:45 +0000
Tue, 25 Oct 2016 23:00:00 +0000
[Kevin Darrah] is risking the nerves on his index finger to learn about ESD protection. Armed with a white pair of socks, a microfiber couch, and a nylon carpet, like a wizard from a book he summons electricity from his very hands (after a shuffle around the house). His energy focused on a sacrificial 2N7000 small signal MOSFET.
So what happens to a circuit when you shock it? Does it instantly die in a dramatic movie fashion: smoke billowing towards the roof, sirens in the distance? [Kevin] set up a simple circuit to show the truth. It’s got a button, …read more(image)
Tue, 25 Oct 2016 20:00:00 +0000
What’s going through the mind of those your autonomous vacuum cleaning robots as they traverse a room? There are different ways to find out such as covering the floor with dirt and seeing what remains afterwards (a less desirable approach) or mounting an LED to the top and taking a long exposure photo. [Saulius] decided to do it by videoing his robot with a fisheye lens from near the ceiling and then making a heatmap of the result. Not being satisfied with just a finished photo, he made a video showing the path taken as the room is being traversed, …read more(image)
Tue, 25 Oct 2016 18:31:33 +0000
There was a time, not so long ago, when all the cool kids were dual-booting their computers: one side running Linux for hacking and another running Windows for gaming. We know, we were there. But why the heck would you ever want to dual-boot an Arduino? We’re still scratching our heads about the application, but we know a cool hack when we see one; [Vinod] soldered the tiny surface-mount EEPROM on top of the already small AVR chip! (Check the video below.)
Aside from tiny-soldering skills, [Vinod] wrote his own custom bootloader for the AVR-based Arduino. With just enough memory …read more(image)
Tue, 25 Oct 2016 17:00:27 +0000
We recently ran a post about engineers being worse, better, or the same than they “used to be” and it got me thinking. Of course “used to be” is in the eyes of the beholders. To me, that’s the 1950s and 1960s. To some of you, my generation is the “used to be” generation. To some of you, I’m past even that.
I’ve often said, there are two things that are simple: something really simple, and something really complex. For example, when a caveman grabbed a log floating down the river and hitched a ride a few miles downstream that …read more(image)
Tue, 25 Oct 2016 16:01:09 +0000
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?
This parts order is for the badge hacking at this year’s SuperCon. What we saw last year was amazing considering the parts …read more(image)
Tue, 25 Oct 2016 15:00:00 +0000
We’ve done a lot of PCBs with the toner transfer method over the years. The idea is simple: print a pattern using toner (which is just ground up black plastic) and then use an iron or other heat and pressure device to transfer the toner to a copper-clad board. It works and it works well. But getting just the right combination of heat, pressure, release paper, and toner is sometimes tricky.
Some people hack their printers to turn off the fuser wire (to make the toner not stick to the paper) or to run a PCB directly through it. If …read more(image)
Tue, 25 Oct 2016 14:01:31 +0000
There’s been a lot of fuss over Apple’s move to ditch the traditional audio jack. As for me, I hope I never have to plug in another headphone cable. This may come off as gleeful dancing on the gravesite of my enemy before the hole has even been dug; it kind of is. The jack has always been a pain point in my devices. Maybe I’ve just been unlucky. Money was tight growing up. I would save up for a nice set of headphones or an mp3 player only to have the jack go out. It was a clear betrayal …read more(image)