Author: Eliot

1332 Articles

Ripsaw MS1

December 5, 2008 by 44 Comments

ripsaw

The Ripsaw MS1 is an unmanned ground vehicle built by two brothers in Maine. The tracked vehicle can go 0-60 in 3.5 seconds with an 80mph top speed. In its current form, it has a 2000 pound capacity, which opens the possibility for many different types of weapon systems. Control is provided by two people: one driver and one gunner. They work in independent remote stations. The Ripsaw could potentially be used in any application normally reserved for a tank. It could lead a charge without putting soldiers at risk.

We’ve been watching this project mature since 2005 when it was being marketed as a Grand Challenge competitor. This week it’s being demoed at the Army Science Conference. Check out footage of it in motion below.

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Arduino Switch Box

December 4, 2008 by 12 Comments

arduino_switch

When you’re prototyping a new project, sometimes all you need is a switch. The folks at oomlout were tired of constantly having to rewire things, so they built a universal switch box for the Arduino. It has five potentiometers plus three switches. They’ve put together a software package that monitors the switches and can show you a live view of the knob positions. Have a look at the video below for a demo.

The writeup actually hints at what we can only assume is the next kit they’re releasing: a robot arm. Continue reading “Arduino Switch Box” →

Xbox 360 Portable

December 3, 2008 by 50 Comments

ben_heck

A couple months ago we posted [Ben Heck]’s in-progress photos of his Xbox 360 laptop (with links to his other versions). He’s just put the finishing touches on it, and dubbed it the Xbox 360 Portable. It has a removable hard drive on top and memory slots on the side. The webcam is embedded in the frame and there’s internal WiFi. With chatpads available now, he’s decided not to include a keyboard. It’s really a nice machine. Check out the video below for a tour of the system.

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Python 3000 Officially Released

December 3, 2008 by 13 Comments

python3k

Python 3000 has officially been released. The final bug, Issue2306, “Update What’s new in 3.0” has been closed. Python 3000, py3k, Python 3.0, is a major release for the community. [Jeremy Hylton] pegs the earliest mention of the beast to January 2000. The new release has grown from PEP 3000, opened April 2006.

Py3k breaks backwards compatibility with previous releases in order to reduce feature duplication and promote one obvious way of getting things done. The first major change is that print is now a builtin function and not a statement. int and long have been unified, and integer division now returns a float. Py3k uses concepts of “text” and “data” instead of “Unicode strings” and “8-bit strings”. You can read about many of the changes in What’s New In Python 3.0. Some new features have been backported to Python 2.6 so you can start implementing them in your current code to ease the transition. 2.6 also has the -3 command line switch to warn you about features that are being removed or changed. Finally, the tool 2to3 is a source-to-source translator that should automate a lot of the changes.

Documentation for the new release is online. Source packages and binaries are available now.

[via johl]

Nintendo DSi Gets Its First Flash Cart

December 3, 2008 by 41 Comments

ak2i_power_on

A month ago, we reported that Nintendo’s new DSi portable didn’t work with any of the current crop of flash cartridges. Things didn’t look good for homebrew. Here we are a month later and looking at the release of the Acekard 2i. It’s the first DSi compatible flash cartridge. The features appear to be identical to previous versions and we expect other manufactures will be updating their product lines in short order. You can find a video of the Acekard 2i after the break.

These carts may exist because of pirates, but we happily use them for homebrew. There are a lot of great programs out there; here’s a list of 24 apps that are dedicated to music creation. You can run Linux on it too. It’s as easy as copying a file to a flash drive. If you have a DS and aren’t using homebrew, you’re wasting it. We’ll be picking up a DSi as soon as they’re in the US (they’re region locked).

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Wiimote Finger Tracking Music Controller

December 2, 2008 by 7 Comments

[youtube=http://www.youtube.com/watch?v=Y7uLuYG62sY&fmt=18]

The Evolution Control Committee has been doing live mashup performances for many years and recently upgraded their hardware. Inspired by [Johnny Lee]’s Wiimote whiteboard, they built a rear projection display they could use during performances. It displays a dense collection of samples in Ableton Live. On each of the performer’s hands is an IR LED mounted to a thimble. By touching the thumb to the forefinger, the LED turns on. Two Wiimotes watch for these IR flashes to trigger mouse clicks. [TradeMark G] found the Ableton display too complex to navigate quickly and accurately with a mouse; this new display make things much easier and enjoyable.

[via Laughing Squid]