The Subway Never Sounded So Good

October 7, 2009 by Mike Szczys 23 Comments

[youtube=http://www.youtube.com/watch?v=ivg56TX9kWI]

Reader [Philippe] tipped us off about this video showing a set of subway steps being turned into a piano keyboard (english translation). The creators wanted to make taking the stairs rather than riding the escalator a bit more fun. They added pressure sensors to each step, then covered them with white and black keys to resemble a keyboard. When a passenger puts their weight on a step, the corresponding pitch is played out loud.

We may have lied in the title as this doesn’t really compare to hearing Josh Bell play for pocket change at your train stop. But coming across this setup on an otherwise mundane commute would really brighten up our day.

Scare ’em Silly With A Moving Pumpkin

October 7, 2009 by Mike Szczys 4 Comments

rovin_pumpkin

Halloween is a scary time for the little ones. It’s dark, they can barely see through their injection molded Spiderman masks, but it’s all worth it for the candy.

Our friends over at Evil Mad Scientist Labs have produced a pumpkin that moves on its own. The little pumpkin was disemboweled from the bottom and its guts were replaced by a simple robot. Three Lego wheels provide this base with one attached to a continuous rotation servo that provides the motion. The device is powered by 3 AAA batteries and powered by an Atmel ATtiny2313 microcontroller. For added terror there are two green LEDs that act as ghoulish eyes.

We’ve embedded the video of the Rovin Pumpkin in action after the break. This is a wonderfully simple way to spice up your front porch decorations on All Hallows’ Eve. Continue reading “Scare ’em Silly With A Moving Pumpkin” →

Barcode Challenge

October 7, 2009 by Mike Szczys 184 Comments

barcode_challenge

This morning we logged into Google to find a Barcode instead of the normal logo (how strange that Google would change their graphic!). Apparently today is the anniversary of the Barcode. This method of easily labeling items for computer scanning is used for every type of commodity in our society. But do you know how to get the cryptic information back out of the Barcode?

Here’s the challenge: The image at the top of the post was created by the devious writers here at Hack a Day. Leave us a comment that tells us what the message says and explains how you deciphered it. There are programs that will do this for you and some smartphones can do this from a picture of the code, but we’re looking for the most creative solutions.

The winner will be decided in a totally unfair and biased way and gets their name plastered all over Hack a Day (and possibly slandered a bit). So get out there and start decoding that machine-readable image.

Update: We’ve announced a winner for this challenge.

Record Eight 1seg Stations At Once

October 7, 2009 by Mike Szczys 14 Comments

multiple_tv_mpeg2_stream_capture

[Aaron] tipped us off about a project over at mobilehackerz. They built something of a PVR for 1seg broadcast stations (Google translation). The 1seg broadcast standard is aimed at mobile video service and available in countries like Japan and Brazil. Their terrestrial TV signals (ISDB-T) are divided into 13 segments per channel but the HD broadcasts only use 12 of those segments. This allows the 1seg data to be broadcast in the 13th segment.

mobilehackerz wanted to record each station’s complete daily broadcast. So they picked up a bunch of USB tuner fobs and chained them together with two powered USB hubs. The video is delivered in a type of MPEG2 format so once pulled out of the air the stream can be dumped directly onto disk. It seems they’ve got some code available for this system but even with the translated page we can’t really figure out what it does. If you’re Japanese skills are strong, fill us in with a comment.

At 3000 yen (about $34) per tuner this is not the most economical PVR capture system we’ve seen. Add to that the 15 fps broadcast and we’re not sure this is of all that much use. But then again, if you have to ask “what is it for?” you’re missing the essence of the hack.

http://en.wikipedia.org/wiki/ISDB-T#ISDB-TIS

Five Concept Mice Add Multi-touch Control

October 6, 2009 by Mike Szczys 34 Comments

[youtube=http://www.youtube.com/watch?v=SLw1MXTDlAE]

Microsoft is showing off five concepts for added mouse functionality. All of them seek to replace traditional move-and-click with touch sensitivity through either capacitive sensing, video recognition, sensor articulation, or laser scanning. We’re excited about the prospects of some of these features but at the same time wonder what this does to the price of this much-abused peripheral. After the break we’ll touch on each of the devices, along with time references for the video embedded above. Continue reading “Five Concept Mice Add Multi-touch Control” →

PSP Plus Second Stick, Camera, 32 Gigs

October 6, 2009 by Mike Szczys 27 Comments

jobless_punk_psp_mod

[JoblessPunk] recently finished his what-a-psp-should-be mod. He’s internalized a camera and added a switch in the body to toggle between using the camera or using the USB port. There’s an additional analog stick, and added charging functionality via the USB port. He’s also packed in an additional 32 GB of flash memory. The device is of course running custom firmware which facilitates the ubiquitous flock of emulators and homebrew apps.

We agree that the original PSP is a pretty powerful handheld that never saw a full realization of its potential. With the impending release of the next generation PSP Go we hope the price and availability of the older units leads to more mods of this sort. Check out the video after the break. Continue reading “PSP Plus Second Stick, Camera, 32 Gigs” →

High Explosives PC Case

October 6, 2009 by Mike Szczys 19 Comments

ammo_casemod

[Ilias] let us know about his new HTPC case mod. He took a surplus Ammo-case and with a bit of work turned it into a livingroom eye-sore masterpiece. His build has some nice touches, including a slot-fed DVD player, switch-based fan control, and key-and-button “nuclear launch” type power-on controls.

A few things to learn from this project: Cleanly cutting holes in a steel case for the connectors is tough. You can see that [Ilias] did a pretty good job with it and in several cases used rubber gaskets to cover the rough edges. Secondly, the slot fed DVD had to be mounted upside-down. We assume this will be fine, but we’d like to hear a follow-up after a few years of heavy use. Finally, the GFAF (girlfriend acceptance factor) ran very close to critical on this build as [Ilias] didn’t clean up the metal shavings on his porch and ended up with rust stains everywhere.

Case mods are an enjoyable hobby. We hope this will inspire you to take the leap. If you do, don’t forget to send your completed project into our tip line.