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Archive: Electronics
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August 30, 2006
DIY party lights
Max says, "Today, I was thinking about how I can turn a household bulb into a party light by connecting an embedded computer for my next party in my garage. We will use a SSR (solid state relay) relays to enable common AC household light." Check out the great video tutorial. Link.
Posted by Natalie Zee Drieu |
Aug 30, 2006 05:25 PM
DIY Projects, Electronics |
Permalink
| Comments (4)
DV camera lens from still camera hack
Joshua says, "Hacking a 35mm still camera lens onto a digital video camera. " Link.
Posted by Natalie Zee Drieu |
Aug 30, 2006 03:07 PM
Electronics |
Permalink
| Comments (0)
C64 USB keyboard
Mikkel says, "The C64 USB keyboard connectos to a PC and is detected as a USB HID device. It uses Objective Development's AVR-USB firmware only driver on an Atmel ATmega8. The microcontroller takes care of scanning the keyboard matrix of an old Commodore 64 "breadbox" and debouncing and converting keypresses to USB HID reports. Should be easily modifiable for creating a USB keyboard in a different form factor. Full source code and hardware documentation available." Link.
Posted by Natalie Zee Drieu |
Aug 30, 2006 11:30 AM
Electronics |
Permalink
| Comments (3)
DIY Pickle Light
I have always wanted to try this!
1. Get a pickle.
2. Jam electrical wires into opposite ends of said pickle.
3. Plug wires into AC socket.
Notice, "Plug in..." comes LAST! Keep in mind, you are dealing with LIVE AC! Use common sense and all possible caution! I grabbed ahold of one of the wires while discussing it infront of a group of Physics Pholks at Rutgers a few years back and got a rude awakening! Made the demo much more interesting for the audience, but ruined my day (not to mention my shorts...). - Link
Update: Here's a video I found of it working and here's a link to an explanation.
Something from the comments- FYI: I would recommend doing it in a well-ventilated room. Electrified pickle is... aweful.Posted by Bre Pettis |
Aug 30, 2006 07:40 AM
Electronics |
Permalink
| Comments (6)
August 29, 2006
Bakken Summer Science Camp
Justin says, "What do you get when you bring over 150 kids into a workshop and tell them they can build whatever they want? That is what we did at the Bakken Summer Science Camp and they came up with some amazing stuff. Boats, cars, robots, secret alarms, ping pong ball throwers, light up dog houses and so much more. I will never cease being amazed by the creativity of children." Link.
Posted by Natalie Zee Drieu |
Aug 29, 2006 02:35 PM
Electronics, Gadgets, Robotics, Science |
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| Comments (0)
Automotive 12V to +-20V converter for audio amplifier
Jonathan Filippi says, "It is a classic push-pull design, taking care to obtain best symmetry (to avoid flux walking). Keep in mind that this circuit will adsorb many amperes (around 10A) so take care to reinforce power tracks with lots of solder and use heavy wires from the battery or the voltage will drop too much at the input. The transformer must be designed to reduce skin effect, it can be done using several insulated magnet wire single wires soldered together but conducting separately. The regulation is done both by the transformer turn ratio and varying the duty cycle. In my case i used 5+5 , 10+10 turns obtaining a step up ratio of 2 (12->24) and downregulating the voltage to 20 via duty cycle dynamic adjust performed by the PWM controller TL494." Link.
Posted by Natalie Zee Drieu |
Aug 29, 2006 09:48 AM
Electronics |
Permalink
| Comments (0)
August 28, 2006
Chumby
It's a widgetized touchscreen open source thingy that connects to the internet via wifi. Mad hacking to ensue. - Link
Posted by Bre Pettis |
Aug 28, 2006 06:49 PM
Electronics |
Permalink
| Comments (5)
PCB etching
Pat says, "Using the same basic techniques as other PCB etching instructions, I have added a helpful twist - a BMP grid to help draw the design without having to use complex layout programs." Link.
Posted by Natalie Zee Drieu |
Aug 28, 2006 03:38 PM
Electronics |
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| Comments (0)
DIY LED Typography
Chris Brentano says, "So what do you do when you're designing an album cover and your inspiration is electronics? You design and build a 750 LED sign of the album's title of course! In designing the cover art for Logistics' debut album "Now More Than Ever", Ricky wired up this sign from scratch, with help from his grandfather, and creating a font in the process, which became the album cover. Very cool! Scroll down the page to see the finished result." There really is no permalink to the article, but it's worth it to scroll down to August 3rd entry called "Quarter". Link.
Posted by Natalie Zee Drieu |
Aug 28, 2006 02:50 PM
DIY Projects, Electronics |
Permalink
| Comments (7)
Light Electric Vehicle
Frank G says, "The finshed Mobility Scooter to Light Electric Vehicle Conversion... Hopped-up Electronics, custom rubber and a snappy paint-job!!!" Link.
Posted by Natalie Zee Drieu |
Aug 28, 2006 08:15 AM
Electronics, Transportation |
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| Comments (0)
HOW TO - Build a flash trigger
Matt Swann built himself a flash trigger for high-speed photography. Matt says, "My first project after assembling an electronic design lab was to build a flash trigger that I could use for high-speed photography. I thought it would be useful to share not only the finished product but also the reasoning that went into its design in the hopes that others will learn from and improve upon it." Link.
Posted by Natalie Zee Drieu |
Aug 28, 2006 08:07 AM
DIY Projects, Electronics |
Permalink
| Comments (1)
August 25, 2006
SMS remote control
Serasidis says, "Control up to 8 electric-electronic devices with a simple SMS. The state of the controlled device can be ON, OFF or Reset. Useful for long distance device control." Link.
Posted by Natalie Zee Drieu |
Aug 25, 2006 02:45 PM
Electronics |
Permalink
| Comments (18)
August 23, 2006
USB BBQ
What do you do with 6 PCI USB cards with 5 USB ports each? Chop off the ends of course and wire up a BBQ - [via] - Link & translated page.
Related:
Homemade USB cup warmer - Link.
Posted by Phillip Torrone |
Aug 23, 2006 08:47 PM
Computers, DIY Projects, Electronics, Made On Earth |
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| Comments (20)
Making Daguerreotype photographs the old fashioned way
Curious about Daguerreotype photos? I was. Jonathan takes you on a tour on what goes in to this old and fantastic photographic art - "The Daguerreotype was the first patented photographic process. Patented by Daguerre in 1839 after ripping off substantial portions of the technology from Joseph-Nicephore Niepce in the 1820s and 1830s, the Daguerreotype was heralded at the time as an amazing invention. The Daguerreotype remained popular for only a short time (25 years or so at the most) because it was (and remains) expensive, irreproducible, and tricky to make in the first place. Why did a technology that had so much going against it stick around for so long? Daguerreotypes are beautiful in the way that diamonds are beautiful. Precious and rare is the Daguerreotype. Silver + iodine + light + UV = photograph." - Link.
Related:
Daguerreotype photographs - Link.
Imaging archives - Link.
Posted by Phillip Torrone |
Aug 23, 2006 06:15 PM
DIY Projects, Electronics |
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| Comments (1)
DIY "Monitor" Stereo
Rybitski took a broken car stereo and (re)made a home version that uses a computer monitor that lights up, he writes - "My friend, Jeremy came to me with a car stereo and an idea. He wanted to use the car stereo as a normal stereo because motorized faceplate no longer worked. We settled on an unusual case, but in the end it worked out well..." [via] - Link.
Related:
Check out his other DIY projects here (I like the coil clock) - Link.
Posted by Phillip Torrone |
Aug 23, 2006 05:11 PM
DIY Projects, Electronics, Home Entertainment, Music |
Permalink
| Comments (0)
HOW TO - Build an open source MIDI keyboard
Barry @ HeadFuzz writes - "This project details the steps to build your own Open Source (musical) keyboard which connects to a computer via USB and sends MIDI signals. This is achieved using an AN2131 development board. The AN2131 is now discontinued, so development boards can be bought cheaply on eBay. Alternatively you could use another USB microcontroller, if you are able to port the firmware. You could also hack any EZ-USB based device, of which there are many..." [via] - Link.
Related:
Posted by Phillip Torrone |
Aug 23, 2006 09:40 AM
DIY Projects, Electronics, Music |
Permalink
| Comments (0)
The robots are coming... and an iRobot mower?
The latest Forbes has a robot round up, 7 robots that will change your life, along with 25 of the greatest moments in robot history. There's also a profile of our friends at iRobot, at the end of the article it seems like we can expect a robot lawnmower from iRobot soon, huh - "One of the bestselling robots in history, oddly, turns out to be as ugly and impersonal as a bathroom scale. And all it does is patrol the floor and pick up lint from under the couch. It's the Roomba vacuum cleaner. Roomba is what happens when robo-wizardry collides with practical needs." [via] - Link.
Pictured here, control a Roomba with a DIY bluetooth project - Link.
Related:
- The Robots Are Coming! - Link.
- iRobot - Photos and video of the PackBot! - Link (and video).
- Roomba projects, hacks, mods and more - Link.
- Mower projects - Link.
- Robot archives - Link.
Posted by Phillip Torrone |
Aug 23, 2006 07:47 AM
DIY Projects, Electronics, Robotics |
Permalink
| Comments (1)
August 22, 2006
New stuff @ Spark Fun Electronics
Spark Fun Electronics, one of our favorite Maker-electronics spots on the web has some new goodies... The HMC6352 - an all in one compass solution, new cameras for the GM862 cellular modules, the E700 camera breakout board (pictured here), hemostats and a igitally controlled 2A switch. - Link.
Posted by Phillip Torrone |
Aug 22, 2006 10:23 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
HOW TO - Add LEDs to a NES controller
Silas shows you how to add LEDs that light up when the buttons are pressed on a NES controller, nice update to a retro pad - "So I've noticed that there's "a lot" of people, talking about how they would add LED's to their NES pads, that lights when a button is pressed. Sadly noone seems to do anything about it... So I desided to something about it..." - Link.
More:
- 10 mods for a NES controller - Link.
- NES Controller cellphone mod - Link.
- NES Controller USB Hub w/Wireless - Link.
- HOW TO - NES controller for Xbox mod - Link.
- NES controller MP3 player... - Link.
- More NES controller projects - Link.
Posted by Phillip Torrone |
Aug 22, 2006 06:31 PM
DIY Projects, Electronics, Gaming, Retro |
Permalink
| Comments (3)
Make a G-Meter for your car in 1 minute!
Max writes - "Here's a DIY on how to make a G-meter for you car and measure how many Gs your car can handle. We will use an accelerometer chip from Dimension Engineering and CUBLOC CB220 module from Comfile to cut down our hardware development to near a minute." - Link.
Posted by Phillip Torrone |
Aug 22, 2006 02:50 PM
DIY Projects, Electronics |
Permalink
| Comments (2)
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