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Archive: Electronics
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January 22, 2008
Bug Labs Store open for open source hardware biz
The Bug Labs Store is now open for open source hardware biz - Link.
Posted by Phillip Torrone |
Jan 22, 2008 01:00 AM
Electronics, Open source hardware |
Permalink
| Comments (4)
January 21, 2008
World’s smallest low-speed USB analyzer (works as a USB key recorder too)...
Chinook writes -
[Any] idea is dead without a good application for it. So “California Dreamin’” USB virtual peripheral could be a very nice sample of academic research, but hardly anybody is going to build a keyboard or mouse using it. I have been thinking for a while what to do with it as well. First project that came to my mind was building a hardware key logger for USB keyboards, something like www.keyghost.com, built for PS2 protocol using PIC16F877. It was quite simple to implement USB part using SX, serial EEPROM and a few switching IC’s. Furthermore I found out that built-in features of SX MCU would help to create a device able to work not only with pure low-speed USB keyboards, but also composite, built-in-hub, things, hence covering all existing systems (SUN, Mac, PC). Recording keystrokes is fun, but if we can do that, why not go further and try to record all low-speed USB traffic. No problem for SX again, problem for the memory. Serial EEPROM is just to slow to handle it. Solution was www.ramtron.com FRAM with 1MHz two-wire interface (let me pay credit here to www.svtehs.com, who happens to advertise it). Finally “California Dreamin’” found a real life application in the world’s smallest low-speed USB analyzer “Atapchi” (stands for a small fruit in Singapore, tastes like apricot). I hope you find this project interesting.World’s smallest low-speed USB analyzer - Link.
Posted by Phillip Torrone |
Jan 21, 2008 05:00 PM
Cellphones, DIY Projects, Electronics |
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| Comments (0)
Virtualcogs
We've had BUGLabs up here on MAKE a lot lately, so here's another one to check out if you're digging the idea of a module embedded platform. Here's the i.MX21 (VCMX212) COG -
A stackable system based around the Freescale Semiconductor i.MX21 multimedia ARM9 processor. This SBC measures only 2"x1.75" in size and features 64MB SDRAM, 16MB of FLASH memory, onboard USB and is compatible with any of the Virtual Cogs VC21 series accessory boards.Virtualcogs - Link.Specifications:
- Freescale Semiconductor i.MX21 ARM9 Multimedia Processor
- Onboard 64MB Highspeed SDRAM
- Onboard 16MB NOR FLASH
- Power Over USB Capability
- USB to Serial Port for Easy Interfacing
- Pass-Thru Bus Design Allow Stacking with Many Accessory COGS
- Full JTAG Access
- Two M2 mounting holes
Posted by Phillip Torrone |
Jan 21, 2008 11:00 AM
DIY Projects, Electronics |
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| Comments (6)
Arduino theremin-like musical instrument
Alberto made a really nice Arduino based theremin-like musical instrument, schematics and source on the site - photos & more.
Posted by Phillip Torrone |
Jan 21, 2008 09:00 AM
Arduino, DIY Projects, Electronics, Open source hardware |
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| Comments (5)
Homemade MIDI controller
MAKE FLickr photo pool member recotana's gorgeous homemade MIDID controller, check out the build photos! - Link.
Posted by Phillip Torrone |
Jan 21, 2008 08:00 AM
DIY Projects, Electronics, Music |
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| Comments (3)
Electronic art classes in NYC: LEMUR's Winter Art & Technology classes begin January 26th
Eric writes in -
Visit http://lemurbots.org for more info and to sign up - LEMUR is happy to announce the formation of an Art & Technology Education Coalition in partnership with Harvestworks (http://harvestworks.org) and 3rd Ward (http://3rdward.com). Our three organizations have teamed up to broaden our collective offering of art & technology classes, with each organization focusing on its strengths. In addition, we will soon be offering special course series, with a series of related subjects taught among the three facilities. Also coming soon, we will be offering discounts for taking multiple classes at any of the facilities.LEMUR's classes will focus on electronics, sensors, robotics, microcontrollers and performance. Harvestworks' classes will focus on interactive and multimedia software including a range of Max/MSP and Jitter classes with varied subjects and skill levels. 3rd Ward's classes will focus on fabrication and design, including woodworking, metalworking, welding, screenprinting, textile design and design software.
- Building MIDI Music & Video Controllers: Creating a Sensor Instrument with MidiTron, Level 1 & 2
- Microcontroller Progamming for Artists: Introduction to the Arduino System, Level 1 & 2
- Video Tracking in Jitter: Expert Video Tracking for Sound and Video Control
- Fun With Fiberglass: Basic Composite Fabrication
- Ableton Live for Performers: Integrating Live Computer Electronics Into Contemporary Performance
- Pyrotronics: Pyrotechnics & Control for Artists
- Art of Light: Controlling LEDs, EL Wire and Other Lighting Elements with Microprocessors
- Sensors for Dancers: Wireless Sound and Video Control Through Movement
- Electromechanical Systems and Robotics for Artists
Posted by Phillip Torrone |
Jan 21, 2008 02:00 AM
Electronics, Events |
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| Comments (0)
January 20, 2008
New feature - What's new in electronics catalogs - Jameco SAFETY & SECURITY!
I think it's time for a new feature here on MAKE - our review (and yours) on electronics catalogs - as makers we all get dozens of catalogs from Jameco, Mouser, Digikey and more - so let's all comment on these "bibles" that fill our shelves and toilet tanks. We get our parts from these, we thumb through them - but does anyone actually pay attention to what they're trying to tell us? Who knows - here's the first one is the one that arrived in my mailbox today - Jameco!
The Jameco 281 - February 2008 edition (wow, 280 of these before this!). The theme is safety, there's a giant safe on the cover - safes = security folks. If you're going to order from Jameco you can choose savings or security (it's a choice of both). There are cheaper parts from no-name folks, that might be ok for a hobby project but when you're doing something else you might want to consider some name brand options, more so if you're company doesn't put up with generic brands and need some type of certifications/standards. It's like going to the pharmacy, the generics are probably ok - but who are you going to sue if things go wrong? Oh, the catalog weighs in at a nice 208 pages (zoomable photos here).
Inside the cover there is a team of tiny people that are working safely on a circuit board. The one in the middle is about to do something with that capacitor while the other is telling him what to do, the other guy is just hanging out in his yellow hat, likely a contractor. Jameco is against asterisks, they don't have them and the darts speak for themselves I think. The safe is back, they're not going to let you forget about security just yet.
Overall I think this is what I expect and want from an electronics catalog, some stock photos that end up being charming more than anything else along with some bold campaigns against symbols that usually mean bad things (the asterisk, we hate them!). Good work Jameco.
Ok, makers your turn - if you got this catalog post your comments up. Next week will likely be Mouser or Digikey. If you want to do a review hit us up on email.
More:
Jameco (10x of what's in the catalog online) - Link.
Posted by Phillip Torrone |
Jan 20, 2008 03:00 AM
Electronics, Reviews |
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| Comments (14)
January 19, 2008
BioPong
This is a nice, a "bio-pong" game using a modified pong kit. Flexing your arms moves the on the screen paddles, flex both to start the game/shoot the ball - [via] - Link.
Related:
Pong kit - Link.
Posted by Phillip Torrone |
Jan 19, 2008 06:00 AM
Electronics, Kits |
Permalink
| Comments (0)
January 18, 2008
"Korg" lunchbox synth
lunchbox synth - Link
Posted by Gareth Branwyn |
Jan 18, 2008 06:00 PM
Electronics, Music |
Permalink
| Comments (2)
uDuino: A very low cost Arduino compatible development board
Tymm writes -
Arduino boards are great for prototyping. However they get rather expensive when you have multiple concurrent projects or need lots of controller boards for a larger project. There are some great, cheaper alternatives (Boarduino, Freeduino) but the costs still add up when you need many of them.uDuino: A very low cost Arduino compatible development board - Link.This is a way, after about $25-$30 initial investment, to build sub-$10 Arduino-compatible boards with very little extra time investment on each.
Note that the basic idea here (Arduino on a breadboard) has been done for quite some time (e.g ITP Arduino Breadboard instructions); however the cable adapter build & usage instructions here help absolutely minimize the parts count for each core.
This project requires knowledge of soldering and basic electronics, and you should have at least some experience already with Arduino development. I don't suggest this as a first electronics project.
note: I pronounce uDuino "moo DWEE noh"
This Instructable is still a little under development; if you notice anything missing or have suggestions for things that should be added please let me know. I've left off some notes about potential uses/tweaks to keep the build relatively simple (I might put together another Instructable at some point based on some of the programming & testing tools I've been working on with this setup).
Posted by Phillip Torrone |
Jan 18, 2008 04:20 PM
Arduino, DIY Projects, Electronics, Instructables, Open source hardware |
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| Comments (0)
DIY IR glasses
MAKE FLickr photo pool member Collin writes -
After viewing Johnny Lee's head tracking demonstration using the Wii hardware I had to experience it for myself. I had a pair of LED safety googles lying around and decided it was time to put them to better use.DIY IR glasses - Link.
Posted by Phillip Torrone |
Jan 18, 2008 04:00 PM
DIY Projects, Electronics, Gaming |
Permalink
| Comments (4)
Bug Labs - "Hiro P" BUGbase
Mehrshad sent in an update about the first round of BUGBase units, he writes -
We've just uploaded a few photos of the "Hiro P" BUGbase to the web. We had originally planned to issue an announcement on Monday morning before we opened the Bug Labs store (which opens at noon EST on Monday), but we've decided to announce early. The photos in question can be found here.Bug Labs - "Hiro P" BUGbase - Link.This is the BUGbase "Hiro P" model. It's what the first batch of BUGbase units will look like, and is much like the BUGbase we've been promoting, only with a minor aesthetic change to the front panel and no onboard 802.11 wi-fi.
Why no wi-fi? The issue extends from developing a set of open source wi-fi drivers, and we had to make a decision on our first production run - either ship early with no wi-fi, or delay the ship date until the driver issue was resolved.
However, to compensate the Hiro P customers, we will be offering them a BUGwifi module *at cost*, and we will also be giving them a *free* BUGvonhippel module. Additionally, we will be extending the early adopter program to the new batch of wireless-enabled BUGbases.
Posted by Phillip Torrone |
Jan 18, 2008 03:09 PM
Electronics, Open source hardware |
Permalink
| Comments (4)
DIY Binary clock project & binary clock roundup!
Dave sent in his binary clock he turned in to an old hard drive, he writes -
In about April of 2004 I started this binary clock project which was inspired by the Think Geek binary clock. I put the project on hold a number of times and finally finished it around October of 2003. When I started the project the TG clock was only available with red LEDs, and while it was definitely pretty cool, there were a number of things about it that bothered me. Obviously it needed blue LEDs, which are all the rage for the modern appliances. It also displays the time in 6 binary registers, one each for the 6 decimal digits of a digital clock. While this arrangement generates some pretty gnarly patterns, and is probably why it was chosen, it seemed very un-geekish to me. Lastly, and most importantly, since one of the guys I work with already had a red TG binary clock on his desk, if I was to have one, it couldn't be the same design, and it would have to somehow out-geek that other clock.DIY Binary clock project - Link.Clearly I would have to create my own binary clock from scratch to meet my requirements. As the only 'crossover geek' in the office (programming and hobby-level digital electronics), I could meet the primary goal of out-geeking the existing clock with my own AVR microcontroller based design.
01010010 01100101 01101100 01100001 01110100 01100101 01100100 00111010:
Binary Clock - Link.
DIY Binary clock - Link.
HOW TO - Make an analog binary clock - Link.
HOW TO - Build a binary clock - Link.
HOW TO - Build a Binary LED Clock - Link.
Binary LED clock - Link.
Posted by Phillip Torrone |
Jan 18, 2008 03:00 PM
DIY Projects, Electronics |
Permalink
| Comments (5)
HOW TO - Make a 99000 RPM digital contact-less tachometer
Ibrahim writes -
how to build a contact -less tachometer (device used to count the revolutions per minute of a rotating shaft) using a 8051 micro controller and a proximity sensor.HOW TO - Make a 99000 RPM digital contact-less tachometer - Link.As the name implies, what makes this device special, is that it can very accurately measure the rotational speed of a shaft without even touching it. This is very interesting when making direct contact with the rotating shaft is not an option or will reduce the velocity of the shaft, giving faulty readings.
Posted by Phillip Torrone |
Jan 18, 2008 01:00 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
Bubblegum sequencer - Making music with candy
Hannes Hesse & Andrew McDiarmid sent in this sweet project! -
The Bubblegum Sequencer is a physical step sequencer that lets you create drumloops by arranging colored balls on a tangible surface. It generates MIDI events and can be used as an input device to control audio hardware and software. Finally, people can't claim anymore that electronic music isn't handmade.Bubblegum sequencer - Making music with candy - Link.Here's how it works: A grid of holes, consisting of several rows with 16 holes each is the canvas. On it, you arrange colored gumballs. The 16 columns represent the 16th-notes in a measure. Each color is mapped to a specific sample.
Because the output is generated in the form of MIDI events, the Bubblegum Sequencer can be used to control any kind of audio hardware or software.
If you'd like to know more about the Bubblegum Sequencer, read our paper (CHI 2008 Extended Abstract Format).
Posted by Phillip Torrone |
Jan 18, 2008 04:00 AM
DIY Projects, Electronics, Music |
Permalink
| Comments (1)
January 17, 2008
Yo-Yo Core - Wii + Yo-Yo = musical instrument
Doctor Popular writes in -
In this episode of PopCast, I talk to my old friend Kyle Machulis about his newest project at Nonpolynomial Labs. Inspired by Johnny Lee's fantastic Wii-hacks, Kyle has created a yo-yo controlled musical interface using Max/MSP and a modified Torch circuit board. In the video, Kyle talks about the project and let's me make some yo-yo core.Yo-Yo Core - Wii + Yo-Yo = musical instrument - Link & more about the WiiYo here - Link.
Posted by Phillip Torrone |
Jan 17, 2008 03:00 PM
DIY Projects, Electronics, Gaming |
Permalink
| Comments (0)
RoboChumby
Over the holiday Bunnie made a robo-Chumby, he writes -
The final control paths for the system thus looked like this:RoboChumby - Link.sensors -> chumby server app -> UDP packet -> 802.11 wifi transmitted over 10's of meters -> client client app -> phidget driver -> USB -> phidget board -> solid state relay -> RC controller switches -> modulated to 27 MHz -> transmitted over a distance of 1″ -> demodulated -> motor driver -> motors
Sony DSC-T10 camera -> PAL -> DVB-T encoder -> MPEG-2 format -> DVB-T wireless transmission over 10's of meters -> DVB-T receiver
Plus, of course, the normal widget stream coming from the chumby servers in the US via the Wifi interface as well. After all, what Wifi controlled toy car isn't complete without streaming internet radio, Flash movies of Chuck Norris facts and "interesting" Flickr streams playing on it.
Related:
Chumby round up - Link.
Posted by Phillip Torrone |
Jan 17, 2008 01:00 PM
DIY Projects, Electronics, Open source hardware |
Permalink
| Comments (2)
HOW TO - Make a "Quick & Dirty" Marx generator
Mike writes -
Do you like the idea of tesla coils and other high-voltage sparking stuff, but don't have the time, money or patience to build something that elaborate? Here's a fun little project that can make big, fat, noisy sparks at least 2 inches long, and can be built very quickly and cheaply. The Marx generator consists of an array of resistors, capacitors and spark gaps arranged as follows...HOW TO - Make a "Quick & Dirty" Marx generator - Link.
Posted by Phillip Torrone |
Jan 17, 2008 12:00 PM
DIY Projects, Electronics |
Permalink
| Comments (3)
The IR-ritator
Here's a prank-style kit from MadLab Electronics, the IR-ritator. Schematic included -
A practical joke for playing on anybody who uses an infrared remote to control electrical equipment such as a television. The IR-ritator can jam a remote control and make it seem unreliable, and it can also record and mimic a remote control and disrupt the normal operation of a piece of equipment.The IR-ritator - Link.
Posted by Phillip Torrone |
Jan 17, 2008 11:00 AM
DIY Projects, Electronics, Kits |
Permalink
| Comments (6)
Connectors Demystified
Ryan made this guide to different common electronics connecters. He writes:
Online vendors, particularly sites like Jameco and Digikey, tend to be targeted at engineers who already know exactly what they're looking for. If you don't know the right search terms, finding the right part can be a bear. Since I made my start in electronics a few years ago, Octopart has made finding parts much easier, but you still have to know what you're looking for! In hopes of helping people who're building their first homebrew boards know what to look for, I've tried to compile a bit of what I've picked up.
I can never remember things like pin spacing and various other attributes of components, so this is a handy reference! - Link.
Posted by Becky Stern |
Jan 17, 2008 09:00 AM
Electronics |
Permalink
| Comments (0)
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