Month: January 2009

Twitter IRC Server, Tircd

January 5, 2009 by 22 Comments

tircd

tircd is an ircd proxy for talking to the Twitter API. It should work with any standard IRC client. After running the Perl script, you authenticate to the IRC server using your Twitter username as your /nick. Join the room #twitter and the /topic will be set to your last update. Any message you type will update Twitter and the room’s topic. All of the people you are following show up in the room as users and post messages as they tweet. If you private message one of them, it will become a direct message on Twitter. Other commands work too: /whois to get a person’s bio, /invite to start following, and /kick to unfollow. The project is brand new and will be added new features in the future like Search API support. Follow @tircd for updates.

Parts: Digital Proximity Sensor (Sharp GP2Y0D02)

January 5, 2009 by 19 Comments

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

The GP2Y0D02 is an infrared proximity sensor with a detection field that extends 80cm. This type of sensor can be used to build collision avoidance systems for robots. We’ll demonstrate this sensor using a single resistor and a multimeter.

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7 Color Hand Held Laser Projector

January 5, 2009 by 20 Comments

7color_laser

[rog8811] sent in this really cool hack where he used the optics sled from a PS3 as a foundation for a 7 color hand held laser projector. Combining a green laser, a blue ray laser, and a red laser, he is able to produce a variety of color  including white. There are step by step instructions on how to make a multicolored laser. He then goes even further, showing how to integrate this into a hand held projector with pre programmed patterns. You can see some examples of the different colors and patterns in this video.

Parallel Parking System

January 4, 2009 by 40 Comments

parking

Autoblog dug up this classic mechanical engineering project from 2006. A team of five University of Toledo students constructed a system to help parallel park a car. First, you drive nose first into the space. Hydraulic rams then lower the drive wheel out of the trunk, raising the rear of the car. The single wheel is also hydraulically driven and moves the car into the space. They have a blog documenting the six week build. Have a look at the demonstration video below.

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Hacking At Random 2009 Call For Papers

January 4, 2009 by 1 Comment

With the Chaos Communication Congress concluded, it’s time to start looking towards the next massive European hacker event. This means Hacking at Random August 13-16th in the Netherlands. It’s a four day long camp experience that will feature many conference talks, interactive projects, and more.

The team has selected three tracks in their official call for papers: Dealing with data, Decentralization, and People and politics. You can find more details in the post. Deadline is May 1st.

[photo: mark]

Light To Sound Converter

January 4, 2009 by 21 Comments

lightnoise

[Alex] built what he calls a light to sound converter. It reacts differently depending on the type of light: remote controls, light bulbs, TV screens, etc. A photodiode is used with an amplifier to pick up the light change. That signal is dumped through a dual opamp. He swapped in several different types of photodiodes and settled on the BPW34 intended for visible light. He’ll be incorporating this into a much larger project.