Is Your Wearable Tech Too Subtle?

July 19, 2014 by Brian Benchoff 30 Comments

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With any con, you’re going to have people walking around with things they’ve built. It’s the perfect venue for wearable tech, and the cream of the crop for HOPE X is [Zack]’s SmarTwatCh. Billed as a 3D printed big ass smart watch, it’s anything but subtle and has enough gadgets and gizmos to make even the biggest tech aficionado blush

The front of the SmarTwatCh is an authentic 2×20 glass encapsulated VFD running at 160 Volts, chosen for its danger and character. Inside the 3D printed enclosure is a Teensy 3.0, pots, knobs, and switches, a laser, LEDs, and an alcohol sensor because, “the future is quantified drinking”.

‘Apps’ for this smart watch include a TV-B-Gone, laser pointer, breathalyzer, flashlight, and just about anything else [Zack] can think of that would involve a Bluetooth adapter and a text display. Video of [Zack] demoing the watch at HOPE below.

Continue reading “Is Your Wearable Tech Too Subtle?” →

Long Range Wireless Sensors For The Home-Area-Network

July 19, 2014 by Matt Terndrup 16 Comments

7785441404784533190 In the near future, we will all reside in households that contain hundreds of little devices intertwingled together with an easily connectable and controllable network of sensors. For years, projects have been appearing all around the world, like this wireless sensor system that anyone can build.

[Eric] hopes his work will help bring the truly expansive Home-Area-Network (HAN) into fruition by letting developers build cheap, battery-powered, long-range wireless sensors. His method integrates with the pluggable OSGI architecture and home automation platform openHAB along with using an Arduino as the lower power, sensor node that is capable of utilizing many types of cheap sensors found online.

[Eric]’s tutorial depicts a few examples of the possibilities of these open-source platforms. For instance, he shows what he calls a ‘Mailbox Sentinel’ which is a battery-powered mail monitoring device that uses a Raspberry Pi to play the infamous, and ancient AOL sound bite “you’ve got mail.” It will also send an email once the postman cometh.

In addition, he lists other ideas such as a baby monitoring sentinel, a washer/dryer notification system, water leak detectors, and security implementations that blast a loud alarm if someone tries to break in. All of this potential for just around $20.

The key to making this project work, as [Eric] states, is the MQTT binding that ties together the Ardiuno and openHAB platform. This allows for simple messages to be sent over the Ethernet connection which is often found in IoT devices.

So all you developers out there go home and start thinking of what could be connected next! Because with this system, all you need is a couple of ten-spots and an internet plug, and you have yourself a strong foundation to build on top of. The rest is up to you.

This open, connected device is [Eric’s] entry for The Hackaday Prize. You can see his video demo after the break. We hope this inspires you to submit your own project to the contest!

Continue reading “Long Range Wireless Sensors For The Home-Area-Network” →

HOPE X: Interviews With Ellsberg And Snowden

July 19, 2014 by Rich Bremer 46 Comments

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Two of the talks at HOPE X Saturday revolved around Daniel Ellsberg and Edward Snowden. Unless you’ve been living under a rock, you’ve heard of Snowden when he leaked thousands of classified NSA documents to several media outlets. The older readers may remember Ellsberg who released government documents, known as the Pentagon Papers, pertaining to government decisions made during the Vietnam War. It was a popular topic here as all three conference rooms were dedicated to the the talks and all three were completely filled to the point that staff again had to turn people away. Luckily, even if you couldn’t make it into a conference room you could still watch it as all talks are streamed live via the HOPE website.

Regardless whether you feel these two are heroes or traitors, the talks were interesting with both giving accounts of their story. Each interview was about an hour long.

Ellsberg, who was here in person, talked about his entire experience and why he felt it necessary to reveal the classified documents he had secretly made copies of. Even though Ellsberg did release what he felt was evidence that the government knew that the war could most likely not be won and would cause many more casualties, he does still feel that some things are necessary for the government to keep secret. He gave an estimate that 95% of the documents classified are over-classified at the time of document creation and after a few years only 0.5% of the those documents are still classified correctly, the remaining 99.5% still over-classified.

Snowden, who was available by video, was warmly welcomed and applauded by the attendees of the conference. During the talk he discussed that he did not feel that some of the NSA’s actions he was aware of were constitutional, specifically collecting enormous amounts of data of not only ‘people of interest’, but of everyday american citizens. Snowden feels that we, as a community, give too much trust in our electronic devices. He went on to suggest that the population do what it can to minimize the capability of organizations to monitor communications and track data. He urged that people, with the capability, help educate others on how to interact with technology safely, reliably and in a way that serves the interest of all people, not just a select few.

Let us know what you think below in the comments.

snowden interview

A Laser Cut Word Clock

July 19, 2014 by Nick Conn 18 Comments

What is a word clock? A word clock is a clock that displays the time typographically that is also an interactive piece of art. Rather than buy one for $1500, [Buckeyeguy89] decided to build one as a present for his older brother. A very nice present indeed!

There are many different things that come into play when designing a word clock. The front panel is made from a laser cut piece of birch using the service from Ponoko. Additionally, white translucent pieces of acrylic were needed to keep each word’s light from bleeding into the neighboring letters. The hardware uses two Arduinos to control the LEDs and a DS3231 RTC for keeping accurate time. The results are very impressive, but it would sure make assembly easier if a custom PCB was used in the final version. For a one-off project, this makes a great birthday present.

The craftsmanship of this word clock is great, making it well suited for any home. What projects have you built that involve more than just electronics? Sometimes, quality aesthetics make all the difference.

HOPE X: Commodore 64’s Are Back, Baby

July 19, 2014 by Rich Bremer 15 Comments

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Maybe they weren’t really ever gone but even so Commodore enthusiast [ALWYZ] is here at HOPE X spreading re-awareness of the Commodore 64 and that there is still a community of Commodore fans out there who have been up to some pretty cool projects.

One of those projects is a Quantum Link-esque service called Q-Link Reloaded. Quantum Link was an online service available for Commodore 64 and 128 users that offered electronic mail, online chat, file sharing, online news, and instant messaging. It lasted from the mid-80s to the mid-90’s and later evolved into America Online. In 2005, a group of folks reversed-engineered the original server code and the resultant Q-Link Reloaded lets the Commodore folks once again communicate with each other.

Also on display is a Raspberry Pi running a C64 emulator complete with a controller to GPIO adapter. Hackaday has covered this emulator just a few months ago and it is great to see it working in person.

C64 emulator on raspberry pi

High Speed Laser Based Camera Flash Trigger For Only $2

July 19, 2014 by James Hobson 40 Comments

[Matt Kane] works at a really cool company in the UK where he recently finished working on the Triggertrap Ada — the highest-performance, most feature packed camera trigger out there. So just for fun, he decided to challenge himself again — could he make a super basic, super fast, bare-bones camera trigger for $2 instead?

At the most basic level this is just a laser pointer and a light sensor. When the object your photographing breaks the light path, the flash triggers. Typically this is done with an IR laser, but since he’s going for a low-cost system, he’ll use a basic 1mw red laser pointer — the only downfall is you might see it in the picture.

Next up is the sensor. Ideally we’d use a photodiode which is very fast, but also expensive. A photoresistor is cheap, but not fast enough. A nice medium between the two is a phototransistor, which is relatively fast, and cheap. Finally, we need a minimum trigger period to offset the flash. [Matt] thought about using a 555 timer but instead decided to just generate a pulse with an Attiny45. Continue reading “High Speed Laser Based Camera Flash Trigger For Only $2” →

HOPE X: Hackaday Shirt Gets Hacked At Hacker Convention

July 19, 2014 by Rich Bremer 52 Comments

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In my last post I mentioned that we are meeting a lot of interesting people here at HOPE X. One of those interesting people is [Miriam] who is performing Logo Removal in the vendor area. If you don’t know what that is, you are not alone, neither did we. She doesn’t much like the idea of being a walking bill board for any ole company and has been removing logos from cloths for a while now.

[Miriam] did us a solid and removed a logo from one of the shirts we are giving away. The process starts by flipping the shirt inside out. A piece of scrap fabric larger than the logo is pinned in place in the logo area. The shirt is then flipped right side out and a shape is sewn around the logo, joining the shirt with the scrap fabric. Scissors are then used to cut the logo out of the shirt being careful to only cut the shirt and not the fabric underneath. The shirt is then flipped back inside out and the excess scrap fabric is trimmed away. That’s it.

What about the shape? [Miriam] likes to make them up as she goes along and admits that they aren’t anything specific. She likes the design to be whatever the viewer feels it is. It’s a fun project that invites conversation.

Leave us a comment below telling us what you ‘see’ in the now non-HaD shirt shape.