Judge Spotlight: Elecia White

If you’re a fan of the Embedded podcast you know her voice well. If not, you need to check out the show! Of course we’re talking about [Elecia White], who spent her recent holiday answering our questions.

She’s an accomplished embedded systems engineer — she literally wrote the book on it. We’re delighted that [Elecia] agreed to lend us her skill and experience as a judge for The Hackaday Prize!


judge-spotlight-q5We find that embedded engineers come from all manner of backgrounds. Can you tell us a little bit about how you got into the field?

judge-spotlight-a5I majored in a combination of applied computer science and theoretical systems engineering: my classes were all about programming, C, Fourier, and control loops. I had no idea I’d built a major that would be perfect for low level embedded development.

After school, I went to Hewlett-Packard. I was in the network server division, monitoring servers, writing drivers, and getting ever closer to the hardware. I moved over to HP Labs’ BioScience division to do real embedded work, though I didn’t understand that at the time (yay for a hiring manager who did!). Once I made a motor move, well, it was all over for me. I loved having my software touch the physical world. Happily, the environment was great and the electrical engineers were very patient.


judge-spotlight-q5Do whimsical embedded challenges ever come to mind? For instance, do you ever flip on the TV and think to yourself: “some day I’m going to reprogram the uC and write something that works!”?

Continue reading “Judge Spotlight: Elecia White”

Go Vintage! Learn To Repair And Restore Mechanical Pocket And Wrist Watches.

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Until recently, watches have been entirely mechanical where each wheel, gear, and mechanism representing a milestone in our understanding of precision manufacturing and timekeeping.

One of the very first watches, created by a locksmith.
One of the very first watches, created by a locksmith.

Today it is nearly impossible to find watchmakers to service or repair vintage mechanical pocket and wristwatches, so we have to do it ourselves. Learn to repair vintage mechanical watches. You can do this and we’ll show you how.

They tick, mechanical watches have a pulse. First created in the 16th century by locksmiths, these early watches could only resolve time down to the hour and for this reason displayed time with only one hour hand.

By the 18th century fusee technology enabled watches to achieve accuracies to within seconds.

Continue reading “Go Vintage! Learn To Repair And Restore Mechanical Pocket And Wrist Watches.”

The Homebrew XBox 360 And PS3 Portable

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For the past few years now, [Downing] has been working on the dream of all console modders – a console made in the last ten years made portable. He’s spend a lot of time on the effort, and now thanks to a commission, he’s finally done it. Not just one console, either: this thing makes both the Xbox 360 and PS3 a handheld, battery-powered device thanks to some awesome wireless tech and a great deal of skill.

A few months ago, [Downing] and friends [Hailrazer] and [RDC] started a Kickstarter for the Cross Plane, a portable device that uses a wireless HDMI transmitter to offload the heavy and hot parts of running a game to a console, while the display and controls are kept portable. That Kickstarter didn’t see the success [Downing] was looking for, but that didn’t stop one enthusiastic supporter from commissioning a piece.

The display in the Cross Plane is a 7″ HD display, and the latency on the WHDMI transmitter is just about 1ms – basically unnoticeable. The controls on the front of the portable are wired to ‘controller packs’ that plug into the back, one for Xbox and one for PS3. The build quality is immaculate, and if you’ve ever wanted to know how to expertly finish a 3D printed part so it looks like it came off an assembly line, you should probably check out the build log.

Video walkthrough below.

Continue reading “The Homebrew XBox 360 And PS3 Portable”

Basic IKEA Wall Light Turned Smart And Colorful!

WallLight-DSO

[Daniel Grießhaber] just finished his latest electronics project and we love it. He’s taken a cheap IKEA wall/ceiling light and completely revamped it with RGB LEDs and intelligent control!

The light he used is called the LOCK, and is a mere 1.79€ or about $4 USD. It has lots of room inside and a nice frosted glass dish which results in some excellent color diffusion. He’s designed a nice big circular PCB to mount inside off of the original mounting points. To do this, he used Eagle software to create the circuit and his trusty desktop CNC to mill out the pattern.

To control the lights he used an old ATMega8 board he had lying around, with the Arduino IDE and WS2812 Library. He’s outlined all the parts, diagrams and program sketches you’ll need to make your own over on GitHub.

Unfortunately the LEDs aren’t quite as bright as he hoped so it can’t be used to replace a regular room light — instead he plans on turning this project into sunrise timing light in one of the bedrooms — still pretty cool!

Android Doorbell Notifier

Breadboarded circuit to detect when doorbell rings

It’s always unfortunate to find a FedEx tag on your door saying you missed a delivery; especially when you were home the whole time. After having this problem a few times [Lee] decided to rig up a doorbell notifier for his Android phone.

[Lee]’s doorbell uses a 10 VAC supply to ring a chime. To reduce modifications to the doorbell, he added an integrated rectifier and a PNP transistor. The rectifier drives the transistor when the bell rings, and pulls a line to ground.

An old Netgear router running OpenWRT senses this on a GPIO pin. Hotplugd is used to run a script when the button push is detected.

The software is discussed in a separate post. The router runs a simple UDP server written in C. The phone polls this server periodically using SL4A: a Python scripting layer for the Android platform. To put it all together, hotplugd sends a UNIX signal to the UDP server when the doorbell is pushed. Once the phone polls the server a notification will appear, and [Lee] can pick up his package without delay.

VU Meter Record Player Lights It Up

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[Michaël Duerinckx] was given a turntable for his last birthday from his fiancée — since then he’s started collecting records like nobodies business. But about a month ago he started itching to do an electronics project — he decided to upgrade his record player to include a VU Meter!

As he began designing he soon realized he didn’t have all the tools he needed to do this project right — a perfect excuse to go check out his local makerspace, SoMakeIt!

He started prototyping the VU Meter on a breadboard, and opened up the record player – it was like this thing was made to be hacked. Two free connections off the power supply to power his circuit, bingo! Continue reading “VU Meter Record Player Lights It Up”

Detroit Meetup This Friday

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The plans are made, the swag has shipped, are you going to show up or what? Friday night at 8pm we’re having a Hackaday Meetup at i3 Detroit. That link is how you get your free ticket.

You can come for the hacking, the leisure time, or just to score a free shirt and enough stickers to avoid actually repainting that 1991 POS you call a car.

i3 is offering up their facilities for those that want to work on projects or just hang out. They share a roof with B Nektar so there are an amazing array for tasty beverages available (part of the reason we’re calling this an 18+ event). There’s even talk of parking a food truck out front for the night but they’re still working on that.

Bring some hardware to show off and see if you can keep up with the yarns that [Brian Benchoff], [Chris Gammell], and [Mike Szczys] are known to spin.