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Archive: Electronics
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December 19, 2007
HOW TO - Make a Bristlebot a tiny directional vibrobot made from a toothbrush!
Evil Mad Scientist Laboratories made a cute bristlebot! They write -
The BristleBot is a simple and tiny robot with an agenda. The ingredients? One toothbrush, a battery, and a pager motor. The result? Serious fun. The BristleBot is our take on the popular vibrobot, a simple category of robot that is controlled by a single vibrating (eccentric) motor. Some neat varieties include the mint-tin version as seen in Make Magazine (check the video), and the kid's art bot: a vibrobot with pens for feet.HOW TO - Make a Bristlebot a tiny directional vibrobot - Link.
From the pages of MAKE:
Vibrobot. MAKE 10 page 121. Make a twitchy, bug-like robot with a toy motor and a mint tin. Subscribers—read this article now in your digital edition - Link.
Posted by Phillip Torrone |
Dec 19, 2007 07:00 AM
DIY Projects, Electronics, Robotics |
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HOW TO - Make a LED flower vase
Here's how to make a simple LED flower vase... Link.
Posted by Phillip Torrone |
Dec 19, 2007 03:00 AM
DIY Projects, Electronics |
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| Comments (0)
Autonomous foosball table
Shane writes -
Our senior design project (at Georgia Tech) was an open ended design. We chose to create an autonomous foosball table. The ball as well as the opponent players are tracked in a vision system -- a downward looking webcam. All the main processing is done on an 800 MHz pentium 3 PC in Java, using the Java Media Framework. Once the processing is finished, the PC issues commands to a PIC microcontroller across a serial line. The microcontroller then issues commands to servos to move or kick.Autonomous foosball table - [via] Link.
Posted by Phillip Torrone |
Dec 19, 2007 02:00 AM
Arts, Electronics, Made On Earth, Robotics |
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| Comments (1)
December 18, 2007
LED multitouch input device
An 8 x 8 LED-based multitouch input device using an ARM7 microcontroller with USB 2.0 with a >25Hz capture rate.
Posted by Gareth Branwyn |
Dec 18, 2007 04:00 PM
Computers, Electronics |
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BUG SDK and Bug Labs community live
The Bug labs folks launched their community section if their site and SDK. I had a chance to check some of it out last night and will post more later... good stuff...
Bug Labs has just unveiled the community section of its website (http://buglabs.net) to the public. Now anyone can download the SDK, develop and test their BUG applications with the virtual BUG emulator, and upload and share applications with other community members. Additionally, the new forums and wiki enable users to learn more about and contribute to BUG and Bug Labs.BUG SDK and Bug Labs community live - Link.To get started on the Dragonfly SDK, visit the guide at http://bugcommunity.com/wiki/index.php/BUG_Wiki
Additionally, we'll be showing the BUG and applications at CES in a few weeks
Posted by Phillip Torrone |
Dec 18, 2007 10:00 AM
DIY Projects, Electronics, Open source hardware |
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| Comments (2)
HOW TO - Make a realistic electronic flame flicker
The latest Gadget Freak, holiday style! -
Give your Christmas lighting a country look and make your Nativity scene more realistic with an electronic flame flicker. This device can be used as a lamp dimmer or a flame flicker simulator, and may be switched on and off with the switch on a lamp. The flicker dynamics may be customized for candle, kerosene (or oil) lamp or campfire. Replacing the controls with fixed resistors yields a version inexpensive enough to build an array of them for independently flickering electric candles.HOW TO - Make a realistic electronic flame flicker - Link.
Posted by Phillip Torrone |
Dec 18, 2007 09:00 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (3)
December 16, 2007
Happy birthday transistor!
Forbes on the Tranistor's birthday! -
Sixty years ago, on Dec. 16, 1947, three physicists at Bell Laboratories in Murray Hill, N.J., built the world's first transistor. William Shockley, John Bardeen and William Brattain had been looking for a semiconductor amplifier to take the place of the vacuum tubes that made radios and other electronics so impossibly bulky, hot and power hungry. They were so instantly certain they'd found their answer that they didn't speak a word of it to anyone for six months, until they could experiment further and apply for patents.The Transistor's Birthday - [via] Link.Then on June 30, 1948, they held a press conference in New York City. They showed the world not only a big model of a transistor but also a TV and a radio with transistors in place of the tubes. Nobody was talking about anything like computers yet, but it was a first look at the future we all live in. The world's response? The New York Times ran an item at the bottom of its "News of Radio" column on page 46.
Posted by Phillip Torrone |
Dec 16, 2007 11:00 AM
Announcements, Electronics |
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| Comments (9)
December 13, 2007
Notebook components storage
Now here's something that never would have occurred to me: using ringed binders with zippered pouches inside to organize and store electronics and small hardware components.
Ultimate Parts Storage - Link
Posted by Gareth Branwyn |
Dec 13, 2007 08:00 PM
Electronics, Instructables |
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| Comments (0)
Minty Amps kits
In response to Mark's posting of the LM386 amp project on BBtv, this guy posted a link to his Minty Amps kit. I don't think we've ever blogged about this kit here. If you're lazy and want a kit version of this simple, low parts count project, these kits and PCBs look like a good way to go. If you're pathetically lazy, you can even get one pre-assembled for a mere $7.45.
Minty Amps - Link
Posted by Gareth Branwyn |
Dec 13, 2007 06:00 PM
DIY Projects, Electronics, Music |
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| Comments (2)
I want an LED Christmas, baby!
Here's a cute little Christmas tree made out of LEDs. The red/green "star" on top flashes. The Flickr set includes the circuit diagram.
An abstract christmas tree made out of LEDs - Link
Posted by Gareth Branwyn |
Dec 13, 2007 04:00 PM
Electronics, Holiday projects |
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| Comments (0)
LM386-based amp on BBtv
Our pals over at BBtv celebrate their 50th episode with Mark Frauenfelder showing how he built an LM386-based guitar amp. This is basically the same amp that was used in MAKE Volume 09, in the Cracker Box Amp project. The episode also includes a short video by MAKE contributor Bill Barminski (and Christopher Louie).
BTW: Mark complains in the video that the sound out of the amp is a little fuzzy. In the MAKE piece, Blind Lightnin' Pete says that you can get a cleaner tone with more headroom by using the LM386N-4 variant of the chip and driving it at a higher voltage (it can handle up to 18V).
Mark makes a mini amp / Funky cowboy (BBtv's 50th!) - Link
From Make: Books:
The $5 Cracker Box Amp project, as well as another LM386-based project, Mousey the Junkbot, can be found in our new 75-project collection, The Best of Make.
The Best of Make
Price: $34.99
Buy: Maker Store - Link
After two years, MAKE has become one of most celebrated new magazines to hit the newsstands, and certainly one of the hottest reads. If you're just catching on to the MAKE phenomenon and wonder what you've missed, this book contains the best DIY projects from the magazine's first ten volumes -- a surefire collection of fun and challenging activities going back to MAKE's launch in early 2005.
Posted by Gareth Branwyn |
Dec 13, 2007 02:00 PM
Electronics, Music |
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Ring of Fire holiday decoration
Eric writes -
Over the past few weeks I built a 30" tree ornament to go on a tree in front of my house. It uses 16 high-output red LEDs, an AVR ATTiny861 to do the animation (and dimming), and a ring made from electrical conduit. The link details the construction process, including a parts list, the algorithms used, and construction photosRing of Fire - Link.
Posted by Phillip Torrone |
Dec 13, 2007 03:00 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (0)
December 12, 2007
Darkness-activated LED circuit
Our homeboy Windell, over at EMS Labs, has posted a simple circuit for creating a dark-detecting LED light. It's a power-conserving LED Throwie.
A Simple and Cheap Dark-Detecting LED Circuit - Link
Posted by Gareth Branwyn |
Dec 12, 2007 08:00 PM
DIY Projects, Electronics |
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| Comments (6)
HOW TO - Add an EV switch to an '04 Prius
Hacked Gadgets has a link to a how-to PDF and an aftermarket solution for adding a push-button switch to a North American 2004 Prius to enable the EV (electric vehicle) mode.
Hack your 2004+ Prius to allow EV Mode - Link
Posted by Gareth Branwyn |
Dec 12, 2007 04:00 PM
DIY Projects, Electronics |
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| Comments (1)
Ultimate battery hack video!
Here's some fun year-end commentary on all of those goofy, dubious, or just plain dishonest hacks videos gunning for eyeballs (and big bucks) on Metacafe. Lame!
Insane Car Battery Hack! - Link
Posted by Gareth Branwyn |
Dec 12, 2007 02:00 PM
Electronics |
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| Comments (6)
Homemade boom box
Antti writes -
Situation - A demand for a portable and self powered audio solution. Two weeks time and 250 euros budget: realistic equation? Well luckily I had my brother sharing the cost of this project and giving a helping hand on the construction work.Homemade boom box - [via] Link.The main idea of making a portable loud speaker system like this is to use sensitive speakers and high efficiency amplifier to keep the battery as small and light (and cheap) as possible. It will have only RCA input where audio source gets connected.
Posted by Phillip Torrone |
Dec 12, 2007 10:00 AM
DIY Projects, Electronics, Music |
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| Comments (4)
L O V E project
Here's a simple 7 segment (4) LED project that spells L O V E, aw! - Link.
Posted by Phillip Torrone |
Dec 12, 2007 07:00 AM
DIY Projects, Electronics, Holiday projects |
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| Comments (5)
Low speed AVR oscilloscope
Vassilis sent in this really nice low speed AVR oscilloscope, ideal for low speed signals/waveforms. It has an auto trigger and it can measure signals up to 24Vac or 30Vdc with a 1:10 probe. Source code, pictures, schematic diagram and a working video is on the site - Link.
Posted by Phillip Torrone |
Dec 12, 2007 05:00 AM
DIY Projects, Electronics |
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| Comments (0)
December 11, 2007
Phidget RFID reader on front door security
Here's a project a guy did to turn a Phidget USB RFID Reader and a Kwikset Powerbolt 1000 into a keyless entry system that can be operated by an RFID key fob, mobile phone, or PC. (BTW: This project won second place in the recent Trossen Robotics contest.)
Front Door Security via Phidget RFID Reader - Link
Posted by Gareth Branwyn |
Dec 11, 2007 08:00 PM
Electronics |
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| Comments (0)
Bionic Arduino class notes
Todbot posted up the class notes for “Bionic Arduino – Intro to microcontrollers with Arduino” he's currently teaching at Machine Project, good stuff - Link.
Posted by Phillip Torrone |
Dec 11, 2007 10:00 AM
Arduino, Electronics, Open source hardware |
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| Comments (0)
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