[Eustice Scrubb] has posted some videos and pictures of a robotic "eye stalk" that he's building. It looks like the final version is using 3 servos in an arrangement like tendons through a slinky jr. The ping-pong ball on the top has a BlinkM inside it. You can see a video after the break that shows the three servo tendons in motion. The whole thing is controlled by an Arduino and one of his … [Read more...]
Name that thing
October 31, 2009 By 55 Comments
[Alan] over at HackedGadgets.com has been doing a "Name the Thing" contest where he occasionally posts an image and people try to figure out what it is. We've seen similar posts on some other web sites too. We usually don't post them here because they're not only not a hack, they're usually not even projects. This one, however, caught our eye. We apologize for posting this, without telling … [Read more...]
Broken TV brought to life in LEGO body
October 31, 2009 By 21 Comments
After letting it sit around for about 3 years, [Blake] decided it was time to fix his broken 15" television. A little trouble shooting showed the problem was with the inverter. The backlight would come on for a few seconds, off for a few seconds, then repeat. By freeing the Magnavox 15MF400T from its metal case he got it working again, but couldn't find the source of the short. His solution: build … [Read more...]
XBMC running on ARM
October 30, 2009 By 25 Comments
The XBMC team has posted a teaser showing the current state of the ARM port of this popular open source media software. We've embedded it after the break where you can see the package boot up and playback HD video. In it we see that the system is decoding the signal well, but image rendering needs some tweaking before this will be ready. The hardware used is a Beagleboard which runs a 600 MHz … [Read more...]
Time-lapse courtesy of Arduino
October 30, 2009 By 11 Comments
[Ross] put together a small package for use with time-lapse photography. The Nikon camera he's using can snap a picture when it receives an IR command. [Ross'] solution connects an IR LED to an Arduino to generate this signal. The delay between frames is set with a potentiometer that is read in through the ADC. This is quite a bit less involved than the last solution we saw. The unit consisting … [Read more...]
Processor built with Transistor-Transistor Logic
October 30, 2009 By 26 Comments
[Donn] wanted know exactly what is going on inside of a processor so naturally he built a CPU out of TTL components. He had previously built a couple of versions of a computer based on the Z80 processor. Using the troubleshooting skills he learned and a second-hand textbook, he set to work using 74LS series chips connected using the wire-wrap method we're familiar with from other cpu … [Read more...]
How to create TrueType from an image
October 30, 2009 By 12 Comments
[Viacheslav] wanted his virtual terminal to have the look of a DEC VT220. He was unable to find a font set that looked just right so he set out to make his own TrueType font. He managed to find a sample image of the glyphs that the VT220 used as fonts. Using a collection of free software he sliced the image into 256 different parts, resized and converted to one-bit index images, and converted … [Read more...]
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