RSS
Archive: Electronics
Page 72 of 143 << 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 >>
November 16, 2006
The Cathode Ray Tube site, old electronic glassware...
One of the best collections of old electronic glassware, tons of history and photos! -
"On these pages you will find a lot of interesting pictures from a part of my tube collection. Together with some other pictures and links to sites who share the same interest I try to give you a trip through time. Let's have a look at the first famous CRT and Camera tubes and its predecessor the Crookes Maltese Cross tube.
Also Roentgen (X-Ray), Geissler tubes and Ruhmkorff coils are part of this site. If you want to know more details about the topics, just follow the links on the pages to sites with in-depth information or biography from famous inventors." - Link.
Posted by Phillip Torrone |
Nov 16, 2006 09:41 AM
Electronics, Retro |
Permalink
| Comments (0)
HOW TO - Turn a standard Xbox 360 video cable into a VGA cable
One of my favorite modders/hadrware hackers Benjamin Heckendorn has a good how-to on making your own VGA cable for an Xbox 360, he writes - "Recent Xbox 360 updates have allowed the system to spit out resolutions up to 1080p, and with the new HD DVD add-on drive there's more reason than ever to use a high quality VGA signal instead of the more standard 3-cable component. However there's a bit of a catch -- VGA cables for the 360 cost about $40. According to my calculations, that's about 2 pizzas and a case of beer less to game with. WE don't know about you, but we find that a pretty scary proposition -- yours buddies that swing over for game night probably do too.
In this How-To we'll describe how you can turn your existing Xbox 360 video cable into a "multi-out" device capable of VGA. You don't even need to hack inside the Xbox itself, just the cable. Total cost is around $7, including the Radio Shack project box shown above. Ready to save some cash? Let's get in there!" - Link.
Posted by Phillip Torrone |
Nov 16, 2006 12:20 AM
DIY Projects, Electronics, Gaming |
Permalink
| Comments (0)
November 15, 2006
HOW TO - Make an AVR-Based statistics thermometer
Lars writes - "I got tired of the poor memory functions of my thermometer so I built my own thermometer. I could see the maximum and minimum temperature on the thermometer I had but I wanted to know when those readings were recorded. So I needed the thermometer to have it's own clock. In order to learn how to build a thermometer I had to learn about embedded systems. So I read ISBN 0-333-92994-2 or as it's called An Introduction to the Design of Small-scale Embedded Systems: With Examples From PIC, 80C51 And 68HC05/08 Microcontrollers. Then I chose my microcontroller (the processor) to be an AVR device. The reason for this choice was the fact that the embedded systems class at my university used AVR devices and the fact that the supplier of electronics components in Sweden (where I live) ELFA didn't have any good development boards for PIC (The book focused on PIC) microcontrollers (abbreviated MCUs (stands for Micro Controller Unit)). This turned out to be a very good choice." - Link & cache.
Related:
- AVR projects @ MAKE - Link.
Posted by Phillip Torrone |
Nov 15, 2006 10:38 PM
DIY Projects, Electronics |
Permalink
| Comments (1)
Oxygen sensor simulator
Bob writes - "The oxygen sensor simulator as built on a protoboard. Note the cigarette lighter plug used for power source. The adjustment knob is at the left, and the switch is on the right. The red indicator LED is in the middle. Only use red, because the voltage drop of the LED is part of the circuit!"
...good project for the drag racers (from the Q&A)
"I do racing on the weekends with my street car. Will this project help me tune the car to different conditions? A: If you do drag racing, yes. The races are short enough you can set a mixture and it will hold long enough. Each time you start the car it will go to the mixture you set. Other forms of racing take too long, and the mixture will creep towards very rich, you'd have to adjust the knob while driving." [via] - Link.
Posted by Phillip Torrone |
Nov 15, 2006 08:02 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
Zune Guts
MAKE pal Bunnie took apart and posted high res photos of the new Microsoft Zune music & video player (passed on an extended warranty) - I'm not sure what he's up to, but it's something awesome I'm sure.... The Zune uses a Freescale iMX31L processor (can run Linux it seems)... [via] - Link.
Posted by Phillip Torrone |
Nov 15, 2006 12:22 PM
Electronics, Gadgets |
Permalink
| Comments (4)
Vector-based Pong on an Oscilloscope
Edmond put pong on an Oscilloscope, he writes - "...I created a vector-based, two-player Pong game on an analog oscilloscope. Two potentiometer knobs functioned as the paddle controllers, and A/D converters translated the voltage set by the controllers into coordinate information for the players' paddles. The XY mode of oscilloscope enabled two voltage inputs to direct the cathode-ray tube's electron gun around the display to generate 2D vector graphics." - Link.
Related:
Posted by Phillip Torrone |
Nov 15, 2006 09:27 AM
Electronics, Gaming |
Permalink
| Comments (2)
Hacking guide to the Wii GiftCard
Friedpope writes - "Target is handing out Wii GiftCards in anticipation of Nintendo's release of this remarkable console. The cards are a bit thicker than your regular credit card and house some pretty nifty electronics. Pressing the button on the outside of the card turns on a ominous blue Wii glow that lasts about ten seconds. I'll pop the case on this little thing and check out the internals. After that we'll add a bit of functionality to the LEDs." - Link.
Posted by Phillip Torrone |
Nov 15, 2006 08:05 AM
DIY Projects, Electronics, Gaming |
Permalink
| Comments (4)
HOW TO - Carry cooler box speakers
Here's how to turn an old cooler into a boom box! - Link.
Posted by Phillip Torrone |
Nov 15, 2006 07:50 AM
DIY Projects, Electronics, Music, iPod |
Permalink
| Comments (1)
November 14, 2006
DIY Synthesizer pages
Wow, huge collection of DIY synth circuit diagrams from René Schmitz! Pictured here... Triangle thru zero VCO - "A thru zero oscillator is one that can go forward and backward. This allows for deeper frequency modulation. Sonically there are interesting a little yamaha-ish sounds possible. This oscillator sounds somewhat dirty when the modulation index is time variable. But clean non-time-variant timbres are possible. I've put up several samples here, to give you an impression of the sounds I obtained..." [via] - Link.
Related:
- Synthesizers @ MAKE - Link.
Posted by Phillip Torrone |
Nov 14, 2006 08:02 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
Home controller - Intro of time scheduler and regulator modes
Here's a great way to use monitor and control your home with a PC (for free, schematic and software included)... - "SerReg is a small home controller intended to turn your personal computer ( PC ) into a process control / data collection system. With the appropriate sensors SerReg can monitor physical variables such as pressure, temperature, light intensity, weight, movement etc, process the information and then use the result to control up to three physical devices such as motors, heaters, sirens, lights or other appliances around the home, office, laboratory or factory . You can program your appliances to operate automatically in conjunction with your weekly and daily schedule, manualy turn them on/off from your PC or use SerReg as a process ON/OFF controller to regulate some kind of physical variable ( process variable - PV ) to the desired value ( setpoint - SP )." [via] - Link.
Posted by Phillip Torrone |
Nov 14, 2006 03:32 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
HOW TO - Make a DVD burner into a High-Powered laser
Stephanie has an *awesome* laser project, turn a DVD burner into a high powered laser - "The laser pictured above has a peak output measured at 225 mW (average output 200 mW). It's a visible red at about 650nm. It can light matches, pop balloons, cut electrical tape, and so forth. It can do pretty much anything a Pulsar 150 from Wicked Lasers can do, because it's basically the same thing. The only differences? This laser was home-made, and cost about 1/3 the price. So, how did I do it? Some luck, some deductive reasoning, and some electronics experience all come into play. This page is a brief guide..." [via] - Link.
Related:
- Fun With Lasers (great resources) - Link.
- Transmit Audio with a Laser Pen - Link.
- Play Records with a Laser - Link.
- The Homemade Laser Saber - Link.
- Green Laser! - Link.
- Laser chess... - Link.
- The Homemade Nitrogen Laser - Link.
Posted by Phillip Torrone |
Nov 14, 2006 12:48 PM
DIY Projects, Electronics |
Permalink
| Comments (19)
HOW TO - Make a servo-based 4-legged walker
The Real Elliot writes - "Build your own (needlessly tech) servomotor-driven 4-leg walker robot!
First, a warning: This bot is basically a microcontroller-brain version of the classic BEAM 4-legged walker. The BEAM 4-legger may be easier for you to make if you aren't already set up for microcontroller programming and just want to build a walker.
On the other hand, if you're getting started with microprocessor programming and have a couple servos kicking around, this here's your ideal project! You get to play with walker mechanics without having to worry about the fussy analog BEAM microcore tweaking." - Link.
Posted by Phillip Torrone |
Nov 14, 2006 09:16 AM
DIY Projects, Electronics, Robotics |
Permalink
| Comments (0)
November 13, 2006
HOW TO - Skype headset adapter (2.5mm to 3.5mm jack, mobile phone to PC adapter)
MAKE reader Cuthbert writes - "If you don't like carrying two headsets with you (one for using Skype on your laptop and another for your cell phone) then here is a small adapter that will convert a cell phone headset with a 2.5mm jack plug to the 2x 3.5mm jack plugs used by PCs." - Link & cached.
Related:
- DIY Skype VoIP Phone Adapter - Link.
Posted by Phillip Torrone |
Nov 13, 2006 08:42 PM
DIY Projects, Electronics, VoIP |
Permalink
| Comments (7)
Plexiglass love
MAKE FLickr photo pool member farneawrites - "We've started experimenting with plexiglass and lights. Just scrape a drawing with a dimmer tip on one side of the plexiglass piece. Then make a little hole in the edge below, enough to insert a little light source as a led. Turning the light on, you will see a nice laser/neon effect on your drawing. You can see the result, it is still raw and not well refined, but it gives you an idea. Use high performance led and limit the power to it with a resistor, otherwise you'll burn it." [via] - Link.
Related:
- Join the MAKE Flickr photo pool and post your projects today! - Link.
Posted by Phillip Torrone |
Nov 13, 2006 07:32 PM
Arts, DIY Projects, Electronics |
Permalink
| Comments (2)
LED Lighthouse...
Abnormal in the linear1 forums LED forums has a huge LED lighthouse project... - "This design is for an octagon lamp for simulating a lighthouse 6 second round trip flash. The lighthouse stands about 6 feet tall, an outline of the lamp head is shound on the cardboard of one of the pix. I am really liking the Atmel Tiny controllers, very cool and a true RISC design (no funky divide by 4 microchip T state stuff, also, no moving everything through the w register) This was developed with studio 4 and an STK500 board..." [via] - Link.
Related:
Posted by Phillip Torrone |
Nov 13, 2006 03:05 PM
DIY Projects, Electronics |
Permalink
| Comments (1)
HOW TO - Serial controlled variable speed motor
Westsw shows you how to control the speed of a small DC motor with nothing but the serial port on your computer, a single MOSFET, and DOS commands... - Link.
More serial project for serial Makers:
- Control the Parallel (or Serial) Port with Python - Link.
- HOW TO - Make a Roomba Serial Interface - Link.
- Laser beam detection with a serial port... - Link.
- Ceiva picture frame serial port adapter and HOW TO - Link.
- The Megapus - 20 serial port data replicator - Link.
- HOW TO - Make a cable release and serial port cable ... - Link.
- HOW TO - get audio output on RS-232 (serial port) - Link.
- HOW TO - Controlling a relay and motor with a serial ... - Link.
- More serial - Link.
- More motors - Link.
Posted by Phillip Torrone |
Nov 13, 2006 10:23 AM
DIY Projects, Electronics, Robotics |
Permalink
| Comments (0)
November 10, 2006
HOW TO - Improve the range of your wireless keyboard or mouse
David boosted the range of his wireless keyboard / mouse by 400%, he writes - " I bought a really cool wireless media center keyboard with an onboard trackball mouse, so I diden't need to sit at a table with a mouse, mousepad and a keyboard while enjoying my media center. The plan was that i would be able to relax in my sofa while surfing the internet by using this clever unit.
But oh no! On the cardboard box there was written that the range of the keyboard should be up to 5 meters, but it was at best 2 meters. Not long enough to be used as I intended. " [via] - Link.
Posted by Phillip Torrone |
Nov 10, 2006 02:09 PM
DIY Projects, Electronics, Wireless |
Permalink
| Comments (2)
November 9, 2006
HOW TO - Make a golf club POV (spells words when you swing)
Max and gang made a golf club that spells words when you swing it and he has the how to. Now, it's worth mentioning you could easily make this using our kit too (for less $)... and add features to it (it's all open source) but either way, great stuff if you want to geekify your swing ... - Link & how-to.
Related:
- More POV projects - Link.
Posted by Phillip Torrone |
Nov 9, 2006 06:40 PM
DIY Projects, Electronics |
Permalink
| Comments (0)
Electric eye rings fire bell - Opens garage door
Simple garage door project from "How To Build It" 1932 - "ANYONE interested in experimental electricity can gain a great deal of knowledge and pleasure from the construction of this light-sensitive selenium cell, and have also a handy electric eye that will actuate through a relay any bell, motor or magnet circuit in the bargain.
First, in making the cell, notch the long edges of a piece of mica with about twenty teeth, and drill small holes in the corners, as illustrated in Fig. 3. Next tie the end of a length of No. 18 wire to one pair of holes in the mica and wind on approximately 10 turns, using every other notch along both top and bottom edges. Pull tight and tie the opposite end of the wire in the holes at the opposite end from where it was first tied. Do the same with the second piece of wire, tying the ends in the opposite corners. Fig. 3 will show this plainly. Then test out each winding as illustrated in Fig. 4. If the two windings touch at any point the lamp will light." - Link.
Modern garage door hackery...:
- HOW TO - Make a garage door monitor - Link.
- LED flashlight from garage door remote - Link.
- HOW TO - Build the ULTIMATE Garage Door Monitor - Link.
- HOW TO - Replacing deadly garage door torsion springs - Link.
- HOW TO - Make a garage monitor - Link.
- HOW TO - Build your own garage locator device - Link.
Posted by Phillip Torrone |
Nov 9, 2006 05:31 PM
DIY Projects, Electronics, Modern Mechanix, Retro |
Permalink
| Comments (0)
HOW TO - Speed stabilizer for Dremel drill
Mondo shows you how to use a PIC to control the speed of a Dremel... - "The Dremel drill fitted with a mini drill-chuck on a stand is a great setup for drilling circuit boards. The problem is that it does not do low speeds very well. My unit had a failed internal speed controller, so I just wired around it and connected it to a regulated 24 volt DC supply. This worked OK, but I would like a slower speed when drilling boards. Slowing down with a lower voltage, however, causes it to stall out completly when it begins drilling. What I needed was a circuit to actually increase power to the motor under increasing load." [via] - Link.
Related:
- Get your PIC on - free PIC programming resources - Link.
- PIC microcontrollers - a beginner's guide - Link.
Posted by Phillip Torrone |
Nov 9, 2006 03:23 PM
DIY Projects, Electronics |
Permalink
| Comments (4)
Page 72 of 143 << 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 >>
Features and more @ MAKE!
MAKE @ The NYC Toy Fair 2008 - Covering DIY!HOW TO - Build the arms of assistance.
MADE in Japan - Part I.
MADE in Japan - Part II.
MADE in Japan - Part III.
Make store - Blinky bug kit - Blink!
Make store - Loud Objects Noise Toy Kit
Makers - MAKE Flickr pool contest. Win cool stuff!
Makers - Join the MAKE Facebook page - Meet other makers.
MAKE on Twitter - Tweet! Tweet!
What you're reading in MAKE - Data!
Add MAKE to your RSS reader - Real simple.
Why advertise on MAKE?
Read what folks are saying about us!
Click here to advertise on MAKE!
Phillip Torrone
Senior Editor
Tel: 707-827-7311
Gareth Branwyn
Robot Maker
Jonah Brucker-Cohen
Researcher
Natalie Zee Drieu
Senior Editor
CRAFT
Becky Stern
Culture jammer
Collin Cunningham
Sound Maker
Marc de Vinck
CNC Maker
Current Podcast
AHAB High Altitude Ballooning - Best of Weekend Projects
mp4|mov|hd|3gp|3g2|itunes This week on Best of Weekend Projects, we look back at part two of the AHAB (High Altitude Balloon Adventure). In this epic Bre & Co. travel to Eastern Washington to launch a GPS and camera enabled balloon...
More...
