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Archive: Electronics
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September 29, 2006
Geiger counter mods
David writes - "This site provides step-by-step instructions on modifying a Civil Defense CD V-700 Geiger counter into a unit with digital readout compatible with Geiger tubes and scintillation probes." - Link.
Related:
- Geiger counter (analog) CPU meter - Link.
- Tablet PC Geiger counter - Link.
- Geiger Countering on planes - Link.
- The GeigerPod - Link.
Posted by Phillip Torrone |
Sep 29, 2006 02:14 PM
DIY Projects, Electronics |
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| Comments (0)
MAKE Controller kit (resources)...
The folks at MakingThings updated the MAKE controller kit site a bit, if you have a MAKE controller, or are curious what you can do with one check it out... This next generation of controllers is fully programmable and runs on a much more powerful processor, while still providing a simple interface to a variety of desktop programming environments such as Max/MSP, Flash, and Processing. [via] - Link.
Related:
- Want to make a robot that can draw images for you? The MAKE Drawbot was made using the controller kit! - Link.
- MAKE controller kit - Link.
Posted by Phillip Torrone |
Sep 29, 2006 09:50 AM
DIY Projects, Electronics |
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| Comments (5)
September 28, 2006
HOW TO - Make a $50 mountain bike video camera
Pete got MAKE 07 and used the article to build is own $50 mountain bike video camera, he writes - "The article explained how to convert a $30 "one time use" digital video camera into a reusable camcorder for less and a couple of bucks in parts. WOW! That's cool. I already own a couple of video cameras but they are relegated to boring tasks like taping my kid's birthday parties. But, a $30 video camera could be placed into all kids of compromising situations with little downside at all. Shooting and Mountain Biking are my favorite hobbies so I combined them to make a $50 Mountain Bike Video Camera. Following is a diary of how I did it. " - Link.
More:
From the pages of MAKE:
- Rocket-Launched Camcorder. Hack a $30, single-use camcorder to make it reusable, then launch it up in a model rocket and capture thrilling astronaut's view footage of high-speed neighborhood escape and re-entry. MAKE 07 - Page 78.
- How To How-to - Use a head-mounted video camera to produce instructions for making things. MAKE 07 - Page 46.
Posted by Phillip Torrone |
Sep 28, 2006 10:33 PM
Bicycles, DIY Projects, Electronics, Imaging |
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Carl & Jerry - Adventure in electronics - "Little "Bug" with Big Ears"
Ok, Makers it's time for another adventure in electronics with Carl & Jerry. In this short story the local police need Carl & Jerry's help rescuing a kidnapped girl (back in the 50's junior sleuths and electronic wizards solved most crimes & mysteries in clever ways). The kids need to figure out a way to listen in on the kidnapper's scheduled phone call without said kidnapped knowing he's being listened to... Carl & Jerry, along with a cop dressed up as a milkman save the day...
"It's not impossible," Jerry interrupted, "but I wish we had more time. I guess we'll have to use an inductive type bug. This is really just a large inductance placed somewhere near the telephone induction coil. The field about that coil induces faint currents in our inductance that can be amplified until they are audible."
"What do you mean by 'near?' " the chief asked.
"Well, a large coil is supposed to be able to pick up conversations ten feet from the telephone; but I'll feel safer if we can place our bug five or six feet away."
"Do you have such an inductance?"
"Nope, but Carl and I can make one in shop class at school this afternoon. Really it's just a couple of pounds of very fine wire, say #40, wound on an iron core, This inductance could feed an amplifier~modulator that would modulate a small transmitter. That would allow the gadget to be placed near the telephone without any wires going to it. We could listen some distance away. The only trick is to place the bug close to the telephone the parent uses without arousing his suspicion or the suspicion of anyone watching him."
January 1959 V10-1 Little "Bug" with Big Ears - Link.
What are the "Carl & Jerry - Adventure in electronics"? In the 50's and 60's John T. Frye, W9EGV / Popular Electronics published a series of fiction stories called "The Carl and Jerry stories" - In each story the pair acquired new skills, got their ham radio licenses and used their knowledge of electronics to get out of a jam or solve a mystery - there isn't a complete collection of all the stories that I know of, but there are some scans / text online. If you have more of these or know where more can be found, let me know.
Related:
- The Carl and Jerry stories from Popular Electronics, October 1954 through December 1964 by John T. Frye, W9EGV - Link.
- Popular Electronics Magazine - Link.
Posted by Phillip Torrone |
Sep 28, 2006 02:58 PM
Electronics |
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MIDI Monster attack!
David writes - "The new issue of Make magazine features a tutorial I wrote on embedding a MIDI data detector in a tiny Japanese monster toy. I took a bunch of photos for the article, along with two videos. You can see one video on the Make site, so I thought I'd share the other here." - Link.
Related:
- Monster MIDI Detector - Here's an easy-to-build MIDI detector packaged in a small Japanese action figure. MAKE 07 -Page 147.
- Tons of MIDI projects, how-tos articles and more - Link.
Posted by Phillip Torrone |
Sep 28, 2006 07:11 AM
DIY Projects, Electronics, Music |
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| Comments (0)
September 27, 2006
HOW TO - Make a Star Trek on/off switch
Sergio (The Axeman) has a great how-to on making your own Star Trek (Next Generation LCARS) style on/off swtich... MAKE it so! - Link.
Posted by Phillip Torrone |
Sep 27, 2006 03:41 PM
DIY Projects, Electronics |
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| Comments (5)
Hacking a 35mm still camera lens onto a digital video camera
Josh writes - "About 8 months ago I decided to try and mount an 'old-school' lens system from a classic Canon 35mm still camera on a fairly swank Sony digital video camera. It worked." - Link.
Posted by Phillip Torrone |
Sep 27, 2006 02:36 PM
DIY Projects, Electronics, Imaging |
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HOW TO - Canon EOS remote
Samer writes - "I made a remote for my new Canon Digital Rebel XT/350D. It's a wired remote, cost about $10 in parts, and works pretty well. A friend did the soldering, cause my skills are lacking in that department. The plans are from Camera Hacker, and I ordered the electronics from All Electronics (cheaper and faster than Radio Shack)." - Link.
Related:
HOW TO - Make a cable release and serial port cable for the EOS Digital Rebel - Link.
Posted by Phillip Torrone |
Sep 27, 2006 11:30 AM
DIY Projects, Electronics, Imaging |
Permalink
| Comments (2)
HOW TO - Magno-Sniffer (Magnetic sniffer probe whistler thing using a hall effect sensor)
Here's a cool entry for the Instructables magnet contest, Pronteon writes - "Working with magnets and want a fast way to tell their NORTHs from their SOUTHs? Want to get an idea of their field shapes? Like making weeeeeeeooooooeeeeeeoooo noises? Build a Magno-Sniffer using a hall effect sensor, 555 oscillator circuit, piezo speaker, tongue depressor, hot glue, and a few other doo-dads." - Link.
Posted by Phillip Torrone |
Sep 27, 2006 10:40 AM
DIY Projects, Electronics, Instructables |
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| Comments (0)
Kaoss Pad guitar mod (touch screen whammy bar!)
Phil writes - "While the Kaoss Pad is fantastic in many ways, it's not very friendly to guitarists in it's natural state, I quickly realized this. One would have to have it on a stand of some sort to use it while playing, which wouldn't do. A plan began to form. How hard would it be to put the touch pad on a cable of some sort and then mount it on a guitar? Usual disclaimer applies, if you break your gear don't blame me." [via] - Link.
Related:
More guitar projects - Link.
Posted by Phillip Torrone |
Sep 27, 2006 09:37 AM
DIY Projects, Electronics, Music |
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| Comments (1)
HOW TO - Make a microcontroller based DC power supply
Guido writes - "One of the most important devices for your workshop at home is a good, and reliable DC power supply. In this article we will build such a power supply. It will be Microcontroller controlled. It has a LCD display, and you can send it commands from your Linux computer via RS232 interface. It has a very robust design. " Thanks Penny! - Link.
Related:
- HOW TO - ATX -> Lab Bench Power Supply Conversion - Link.
- Fixing a dying power supply... - Link.
- HOW TO - Convert a computer ATX power supply to a lab ... - Link.
- Make a Lab Power Supply - Link.
- A PC solderless power supply for experimenters - Link.
Posted by Phillip Torrone |
Sep 27, 2006 03:47 AM
DIY Projects, Electronics |
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| Comments (0)
September 26, 2006
Fun with flashing lights (HOW TO - Build a morse code generator)
Arbitraryuser writes - "Not sure if you're interested, but I put this together as a social experiment to see how long it would take for someone to notice that the lamp flashing in my window was actually morse code... less than 24 hours later the cops were at my door.... aka How to build a Morse code signaler and see how long it takes before someone figures it out." - Link.
Related:
- Morse coders beating SMSers - Link.
- Make Morse Code Music - Link.
- DIY Morse code Palm keyboard interface board - Link.
- Simple Working Telegraph System - Link.
- This is not your grandfather's HAM radio... - Link.
Posted by Phillip Torrone |
Sep 26, 2006 03:13 PM
DIY Projects, Electronics |
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| Comments (0)
The most accurate nixie clock - ATOMIC!
Rob sent in this sweet nixie clock, he writes - "If you've built a nixie clock, and are looking around for your next challenge, and happen to have an atomic clock sitting there doing nothing, then get busy. " - Link.
Glowie:
- HOW TO - Powering Nixie Tubes... - Link.
- Maker of the day - David Forbes, Nixie-display clocks ... - Link.
- IN14 Nixie clock kit - Link.
- Nixie clocks & kits for collectors and designers - Link.
- Nixie Build - The case - Link.
Speaking of counting, this is MAKE's 7,000th post!
Posted by Phillip Torrone |
Sep 26, 2006 02:08 PM
Electronics, Made On Earth |
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| Comments (2)
HOW TO - Make a digital toy infrared camera
Vox writes - "Great instructions showing how Zach Stern hacked a cheap $30 digital camera to see infrared light, giving the dreamlike results..." - how to & photos.
Posted by Phillip Torrone |
Sep 26, 2006 01:44 PM
DIY Projects, Electronics, Imaging |
Permalink
| Comments (7)
Work Surface for electronics projects
David writes - "In a few steps, a recycled Tower PC case cover is converted into an excellent working surface. This surface will protect your desk or counter top from solder splashes and scratches. Since the plate is made of steel, you can mount tools or use magnets to hold things in place." - Link.
Posted by Phillip Torrone |
Sep 26, 2006 09:21 AM
DIY Projects, Electronics |
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| Comments (1)
HOW TO - RFID enable your door
401 writes - "A member of a forum I frequent (www.binrev.com) posted this article up today. It's a great step-by-step process on enabling an RFID reader to open your front door. " - Link.
Related:
Posted by Phillip Torrone |
Sep 26, 2006 02:54 AM
DIY Projects, Electronics |
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| Comments (4)
Ionic cooling gaming system
Jared writes - "I have wanted to do this project for a few years now. While it's was a relatively quick build, the time from the photo shoot to publish has been an extremely long and rocky road. Regardless in the end we have produced the first ionic cooling system for your high end gaming system. This system produces absolutely no noise and in fact has no moving parts at all. While this is a proof of concept it proves that you can get the CFM you need to cool a system efficiently with no moving parts and no increase in power consumption." Thanks Jason! - Link.
I'm not sure exactly how/if this works, so Makers take a look and post up in the comments.
Related:
More DIY cooling solutions for your computers... - Link.
Posted by Phillip Torrone |
Sep 26, 2006 01:43 AM
Computers, DIY Projects, Electronics, Gaming |
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| Comments (5)
September 25, 2006
POV (Persistence of vision) using AVR
Trimbitas writes - "This is my first serious (the first one was a one LED blinker) AVR project :) I searched the Internet for a cool looking and easy to build project with ATTiny2313 and I end up on this page, it was a really nice project to start with so I made a list and I went to the local electronics shop to buy them, all the components + board cost me about 4$." - Link.
Related:
Don't forget, we have the MiniPOV v2 Kit in the MAKE store too! - Link.
Posted by Phillip Torrone |
Sep 25, 2006 10:58 PM
DIY Projects, Electronics |
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| Comments (0)
Arduino, the Basic Stamp killer?
Tod has a great background and comparison of the Arduino and the Basic Stamp, he writes - "Parallax's Basic Stamp is the mainstay for hobbyists wanting to add intelligence to everyday devices. A new system called Arduino provides the benefits of the Basic Stamp at a greatly reduced cost, increased speed, and is entirely open-source." - Link.
More:
From MAKE 07 - Arduino Fever. The tale of a cute, blue microcontroller that fits nicely in the palm of your hand, and the expanding community of developers who love and support it. Page 52 & PDF preview.
Posted by Phillip Torrone |
Sep 25, 2006 07:18 PM
DIY Projects, Electronics |
Permalink
| Comments (13)
Build your own Vvrtual analog synthesizer
Peter writes in with this neat looking DIY synth... - "You've seen plenty of DIY circuits for building a homemade analog synth. Here's your chance to build a fully digital emulation you can hack yourself. The result is a synth that's as full-featured as many commercial hardware models, but with a unique architecture and total programmability. You can buy the whole thing for well under $100, then program it to do whatever you want, with some significant resources already growing on the Web. Cheap, retro sounds, digital flexibility (with full MIDI support), and 100% hackable? Could be a perfect music hardware for the Maker. (See also the x0xb0x, of course, but this is a little smaller and simpler, and perhaps a better choice for getting started hacking.)" - Link.
Related:
AVRSYN Monophonic Virtual Analog Synth Kits - Link.
Posted by Phillip Torrone |
Sep 25, 2006 06:46 PM
DIY Projects, Electronics, Music |
Permalink
| Comments (0)
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