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Hack A Day (8 unread)

DUO 128 Elite, 4 bit CPU

Posted: June 8th, 2010, 5:00pm MDT by Jakob Griffith

We’re not sure how we missed [Jack Eisenmann's] 4 bit TTL CPU when we were tipped off the first time, but we’re glad it was sent in again for us to feature it. 41 different ICs (mostly TTL) come together to comprise the DUO 128 Elite. While the architecture is a little different than what [...]
An Arduino Watch you would actually want to wear

Posted: June 8th, 2010, 4:00pm MDT by Jakob Griffith

Leather work, copper tubing, small easy to use package. Now that is a beautiful Arduino Watch. [Matthew Garten] has retrofitted his old Arduino Watch and given us the details that we crave. Previously, all we had was a video and a few pictures of a quite uninviting watch. But now we know it has temperature, [...]
Getting your message across at commencement

Posted: June 8th, 2010, 3:00pm MDT by Mike Szczys

[Yomagaocho] is graduation from Northwestern University on June 18th (wow that’s late in the year… they must be on quarters). He decided to spice up his mortarboard for the commencement ceremony. A normal message wasn’t good enough, and even a solar-powered diorama wasn’t going to suit him. Instead he added 256 addressable LEDs to the [...]
WiMax antenna with auto-positioning system

Posted: June 8th, 2010, 2:00pm MDT by Mike Szczys

[Andrew] certainly brings a bit of a James Bond feel to connecting to your WiMax base station. He built this antenna along with an auto-positioning system to get the strongest signal possible. The device, which appears a bit fragile, breaks down into a nice little case. When you get to your next checkpoint you can [...]
Simple way to fix that broken Ethernet cable

Posted: June 8th, 2010, 12:20pm MDT by Mike Szczys

Chances are you’ve come across an Ethernet cable where the small plastic tab that holds the plug in place has broken off. We have a crimper on hand and usually just throw on a new RJ45 connector but [Laxap] found a simple alternative to fix Ethernet plugs. By using a couple of correctly sized cable [...]
Windows 7 tablet in a carbon fiber case

Posted: June 8th, 2010, 11:00am MDT by Mike Szczys

If you’re not one of Apple’s devoted following the iPad means little more than new hardware you won’t use. Tired of being left out in the cold, [Slampana] built himself a Windows 7 tablet. He grabbed the motherboard and 13.4″ screen from an MSI X320, added a resistive touch screen, USB hub, internal WiFi and [...]
Nexus one as USB host

Posted: June 8th, 2010, 10:00am MDT by Caleb Kraft

[Sven Killig] Has managed to get his Nexus One into USB host mode. This allows him to plug in all kinds of peripherals such as web cams, keyboards, even a displaylink unit. This is fantastic as it really opens up the possibilities of this device. You can see that he now has an amazingly functional [...]
Compound eyes for your robot

Posted: June 8th, 2010, 8:26am MDT by Caleb Kraft

In this writeup, you can see how to build a cheap compound eye system for your robot. Using 4 IR LEDs and 4 phototransistors, [oddbot] gave “Mr General” the ability to follow movement in objects fairly well, assuming that they are within 200 mm. Being IR, it has the typical drawbacks such as sensitivity to [...]