Instructables: exploring - - test - popular http://www.instructables.com Sat, 23 Aug 2014 10:49:44 PDT BLOX v1.01 Light Spectrometer from a "battery powered" head inspection lamp http://www.instructables.com/id/Light-Spectrometer-from-a-head-inspection-lamp/
Light Spectrometer from a "battery powered" head inspection lamp - More DIY How To Projects]]> http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SQUARE2.jpg http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SQUARE.jpg http://cdn.instructables.com/F1J/OK8V/HXY66P6D/F1JOK8VHXY66P6D.SMALL.jpg HUKBMBEAR Hello if you like this please take the time to vote in the competitionsTHANKSAt the end of my light sensing instructable where I played with the measurement of reducing sun light levels as well as making it into a laser game , I mentioned that I wanted to have a go at making a full spectrometer. Thi...
By: HUKBMBEAR

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Tue, 27 May 2014 14:28:46 PDT
What Battery Brand Provides Power the Longest? http://www.instructables.com/id/What-Battery-Brand-Provides-Power-the-Longest/
What Battery Brand Provides Power the Longest? - More DIY How To Projects]]> http://cdn.instructables.com/FZA/PT8S/HV3QBYHV/FZAPT8SHV3QBYHV.SQUARE2.jpg http://cdn.instructables.com/FZA/PT8S/HV3QBYHV/FZAPT8SHV3QBYHV.SQUARE.jpg http://cdn.instructables.com/FZA/PT8S/HV3QBYHV/FZAPT8SHV3QBYHV.SMALL.jpg DIYnosaur In this age of ubiquitous electronics, batteries have an astounding importance in our everyday lives. As we buy and use different brands, we come to wonder, "Which of these is actually the best? Is it worth it to go for a big name brand?" To answer these questions, I set up an experiment to test th...
By: DIYnosaur

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Wed, 14 May 2014 15:05:08 PDT
Make an Oscilloscope Using the SainSmart Mega2560 with the TFT LCD shield and the 3.5 "color touch screen http://www.instructables.com/id/Make-an-Oscilloscope-Using-the-SainSmart-Mega2560-/
Make an Oscilloscope Using the SainSmart Mega2560 with the TFT LCD shield and the 3.5 "color touch screen - More DIY How To Projects]]> http://cdn.instructables.com/FUJ/PX47/HWUJYX30/FUJPX47HWUJYX30.SQUARE2.jpg http://cdn.instructables.com/FUJ/PX47/HWUJYX30/FUJPX47HWUJYX30.SQUARE.jpg http://cdn.instructables.com/FUJ/PX47/HWUJYX30/FUJPX47HWUJYX30.SMALL.jpg johnag This instructable will show you how to build a portable Touch Screen Oscilloscope for less than 40 U$! The oscilloscope is one of the most powerful electronic instruments that is available to electronics hobbyist, experimenters, and engineers. It is mainly used to measue time-varying signals. Any...
By: johnag

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Fri, 11 Apr 2014 14:11:59 PDT
Portal Test Chamber Information Sign http://www.instructables.com/id/Portal-Test-Chamber-Information-Sign/
Portal Test Chamber Information Sign - More DIY How To Projects]]> http://cdn.instructables.com/FNS/L364/HHJO9HL5/FNSL364HHJO9HL5.SQUARE2.jpg http://cdn.instructables.com/FNS/L364/HHJO9HL5/FNSL364HHJO9HL5.SQUARE.jpg http://cdn.instructables.com/FNS/L364/HHJO9HL5/FNSL364HHJO9HL5.SMALL.jpg MrBobDobolina I wrote this up as a post on my blog Apathetic Thursday a few years ago, always meaning to get around to making a tutorial for instructables, but never got around to it. Until now.  This is a 2ft by 4ft back-lit sign, made to look like the Portal video game. (You probably already gathered that.) T...
By: MrBobDobolina

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Wed, 5 Jun 2013 19:49:48 PDT
Coin IQ Test Prank http://www.instructables.com/id/Coin-IQ-Test-Prank/
Coin IQ Test Prank - More DIY How To Projects]]> http://cdn.instructables.com/FYH/C6Y5/HEBNCBIM/FYHC6Y5HEBNCBIM.SQUARE2.jpg http://cdn.instructables.com/FYH/C6Y5/HEBNCBIM/FYHC6Y5HEBNCBIM.SQUARE.jpg http://cdn.instructables.com/FYH/C6Y5/HEBNCBIM/FYHC6Y5HEBNCBIM.SMALL.jpg M3G I love this prank. It's great for some laughs and works almost every time. The nature of it also means that no-one is likely to suspect it of being a prank. It works really well with an audience.  What You Need: - A coin - A good-natured victim - OK story-telling skills Setting the Stage - Wa...
By: M3G

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Wed, 13 Mar 2013 19:46:09 PDT
Learn The Alphabet Backwards in 5 MINUTES http://www.instructables.com/id/Learn-The-Alphabet-Backwards-in-5-MINUTES/
Learn The Alphabet Backwards in 5 MINUTES - More DIY How To Projects]]> http://cdn.instructables.com/FFN/EIUV/FJPYEW1I/FFNEIUVFJPYEW1I.SQUARE2.jpg http://cdn.instructables.com/FFN/EIUV/FJPYEW1I/FFNEIUVFJPYEW1I.SQUARE.jpg http://cdn.instructables.com/FFN/EIUV/FJPYEW1I/FFNEIUVFJPYEW1I.SMALL.jpg iMac In this instructable I will teach you several ways to easily learn the alphabet backwards in only 5 minutes using easy memory tricks. May it be for a bet, for impressing your friends, or passing a sobriety test, memorizing the alphabet backwards always comes in handy. Method One There are on...
By: iMac

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Tue, 12 Aug 2008 18:17:09 PDT
LED / Mini Lightbulb Tester http://www.instructables.com/id/LED-Mini-Lightbulb-Tester/
LED / Mini Lightbulb Tester - More DIY How To Projects]]> http://cdn.instructables.com/FHG/3BSW/HD7U0GM4/FHG3BSWHD7U0GM4.SQUARE2.jpg http://cdn.instructables.com/FHG/3BSW/HD7U0GM4/FHG3BSWHD7U0GM4.SQUARE.jpg http://cdn.instructables.com/FHG/3BSW/HD7U0GM4/FHG3BSWHD7U0GM4.SMALL.jpg sjroth Something I love to do is to take apart old, broken electronic devices and salvage parts from them. From many of these devices I get LEDs, and testing these can be very annoying if I don't have any 3V button cells lying around. I also occasionally use miniature lightbulbs for some projects or experi...
By: sjroth

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Fri, 1 Mar 2013 11:46:49 PST
How to Use a Circuit Tester http://www.instructables.com/id/How-to-Use-a-Circuit-Tester/ http://cdn.instructables.com/FTA/J6X8/H6MEVKY1/FTAJ6X8H6MEVKY1.SQUARE2.jpg http://cdn.instructables.com/FTA/J6X8/H6MEVKY1/FTAJ6X8H6MEVKY1.SQUARE.jpg http://cdn.instructables.com/FTA/J6X8/H6MEVKY1/FTAJ6X8H6MEVKY1.SMALL.jpg The Family Handyman Use the two-lead circuit tester to check for voltage.  Place one lead on a live/hot wire (usually black, but can be any color other than green or white) and the other on a neutral (white) or ground (green or copper) wire, and the tester's light will turn on.  This confirms that you have a good, comp...
By: The Family Handyman

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Wed, 23 Jan 2013 14:46:19 PST
How to Use a Non-Contact Voltage Tester http://www.instructables.com/id/How-to-Use-a-Non-Contact-Voltage-Tester/ http://cdn.instructables.com/FJH/K0YP/H6MF2NJ7/FJHK0YPH6MF2NJ7.SQUARE2.jpg http://cdn.instructables.com/FJH/K0YP/H6MF2NJ7/FJHK0YPH6MF2NJ7.SQUARE.jpg http://cdn.instructables.com/FJH/K0YP/H6MF2NJ7/FJHK0YPH6MF2NJ7.SMALL.jpg The Family Handyman A non-contact voltage tester is the safest way to make sure the power is off without touching any wires. Before you open an electrical box, you should:   - cut off power to the outlet at the main electrical panel   - confirm you turned off the right circuit This is where the non-contact voltage te...
By: The Family Handyman

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Tue, 8 Jan 2013 10:36:05 PST
SpokePOV: LED Bike Wheel Images http://www.instructables.com/id/SpokePOV%3a-LED-Bike-Wheel-Images/
SpokePOV: LED Bike Wheel Images - More DIY How To Projects]]> http://cdn.instructables.com/FNN/URDO/XT9EP27UC6Z/FNNURDOXT9EP27UC6Z.SQUARE2.jpg http://cdn.instructables.com/FNN/URDO/XT9EP27UC6Z/FNNURDOXT9EP27UC6Z.SQUARE.jpg http://cdn.instructables.com/FNN/URDO/XT9EP27UC6Z/FNNURDOXT9EP27UC6Z.SMALL.gif ladyada Spoke POV is an easy-to-make electronic kit toy that turns your bicycle wheel into a customized display! The project includes a free schematic design, open source software for uploading and editing stored bitmap images, and a high-quality kit with all the parts necessary to build your own. Tired: A...
By: ladyada

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Wed, 8 Mar 2006 12:15:14 PST
DIY Nut And Bolt Sizer http://www.instructables.com/id/DIY-Nut-And-Bolt-Sizer/
DIY Nut And Bolt Sizer - More DIY How To Projects]]> http://cdn.instructables.com/FYJ/Y3UO/H3NN9JMA/FYJY3UOH3NN9JMA.SQUARE2.jpg http://cdn.instructables.com/FYJ/Y3UO/H3NN9JMA/FYJY3UOH3NN9JMA.SQUARE.jpg http://cdn.instructables.com/FYJ/Y3UO/H3NN9JMA/FYJY3UOH3NN9JMA.SMALL.jpg 92greenyj Ever wish that you could have one of those nifty nut and bolt thread check/sizer gauges they have at Home Depot, Ace, etc? Well with a little time, you can have your very own in your home shop. There are commercial options available, but this one cost me a whole 15 bucks in materials. So follow alon...
By: 92greenyj

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Wed, 20 Jun 2012 12:06:18 PDT
Test Tube Spice Rack http://www.instructables.com/id/Test-Tube-Spice-Rack/ http://cdn.instructables.com/FBG/8MTO/GXUZEJ9E/FBG8MTOGXUZEJ9E.SQUARE2.jpg http://cdn.instructables.com/FBG/8MTO/GXUZEJ9E/FBG8MTOGXUZEJ9E.SQUARE.jpg http://cdn.instructables.com/FBG/8MTO/GXUZEJ9E/FBG8MTOGXUZEJ9E.SMALL.jpg noahw Here's a test tube spice rack that I made to hold all of my spices.  I tried to improve upon previous test tube spice racks that I've seen by using a nice looking piece of bamboo plywood and by using oversized O rings to "float" the tubes in the rack and eliminate the base plate.  Also, my kitchen i...
By: noahw

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Mon, 30 Jan 2012 12:44:32 PST
nitro coffee http://www.instructables.com/id/nitro-coffee/
nitro coffee - More DIY How To Projects]]> http://cdn.instructables.com/FW9/WI74/GPAS1WIR/FW9WI74GPAS1WIR.SQUARE2.jpg http://cdn.instructables.com/FW9/WI74/GPAS1WIR/FW9WI74GPAS1WIR.SQUARE.jpg http://cdn.instructables.com/FW9/WI74/GPAS1WIR/FW9WI74GPAS1WIR.SMALL.jpg mikeasaurus Sometimes the only thing to get me through a Monday is a strong cup of coffee, lately though regular coffee just hasn't been doing it. Even doubling down and getting doppio espresso has little effect. How can I enjoy a good stimulating brew if I've already built up a tolerance to caffeine? (and befo...
By: mikeasaurus

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Mon, 27 Jun 2011 11:01:02 PDT
(w/ Video) Basic Arduino Robot, Light Seeker! http://www.instructables.com/id/First-Arduino-Robot-Light-Seeker/
(w/ Video) Basic Arduino Robot, Light Seeker! - More DIY How To Projects]]> http://cdn.instructables.com/FL5/YH1Z/GLE1MKLC/FL5YH1ZGLE1MKLC.SQUARE2.jpg http://cdn.instructables.com/FL5/YH1Z/GLE1MKLC/FL5YH1ZGLE1MKLC.SQUARE.jpg http://cdn.instructables.com/FL5/YH1Z/GLE1MKLC/FL5YH1ZGLE1MKLC.SMALL.jpg Chowmix12 Many times I have Googled for "Arduino Robot" in hopes of finding a robot to build. I end up finding many versions of a obstacle avoiding robot that uses either an infrared or a sonar range finder sensor mounted on a servo to detect objects in its way while randomly roaming the area around it. The p...
By: Chowmix12

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Sat, 19 Mar 2011 20:34:36 PDT
LED Lamp with Test Tube http://www.instructables.com/id/LED-Lamp-with-Test-Tube/
LED Lamp with Test Tube - More DIY How To Projects]]> http://cdn.instructables.com/FDQ/YY6Z/GH6IFIBO/FDQYY6ZGH6IFIBO.SQUARE2.jpg http://cdn.instructables.com/FDQ/YY6Z/GH6IFIBO/FDQYY6ZGH6IFIBO.SQUARE.jpg http://cdn.instructables.com/FDQ/YY6Z/GH6IFIBO/FDQYY6ZGH6IFIBO.SMALL.jpg hassiimperatoretorres We will make a lamp with led`s inside the test tube. You can use the lamp in the room, desk or for ornament. The materials are: LEDS, Piece of Wood, Switch, Battery, Electric Cable, Liquid Silicone, Test Tubes. First of all, the form is drawn in the wood piece. Different kinds of designs can be...
By: hassiimperatoretorres

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Thu, 2 Dec 2010 08:31:33 PST
Cloth Covered Banana Cables http://www.instructables.com/id/Cloth-Covered-Banana-Cables/
Cloth Covered Banana Cables - More DIY How To Projects]]> http://cdn.instructables.com/FSX/GDDR/GDNIP4IE/FSXGDDRGDNIP4IE.SQUARE2.jpg http://cdn.instructables.com/FSX/GDDR/GDNIP4IE/FSXGDDRGDNIP4IE.SQUARE.jpg http://cdn.instructables.com/FSX/GDDR/GDNIP4IE/FSXGDDRGDNIP4IE.SMALL.jpg Aud1073cH I wanted some cool banana patch cables, and found it may be cheaper to make my own. I decided to cloth cover my cables to make them more comfortable and to match the vintage styled noise sound effect synthesizer I plan to build. Stackable banana cables are better, but I saved lots of money using n...
By: Aud1073cH

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Sat, 4 Sep 2010 23:35:02 PDT
Breathalyzer Microphone http://www.instructables.com/id/Breathalyzer-Microphone/
Breathalyzer Microphone - More DIY How To Projects]]> http://cdn.instructables.com/FUY/50LD/FJIVQWGV/FUY50LDFJIVQWGV.SQUARE2.jpg http://cdn.instructables.com/FUY/50LD/FJIVQWGV/FUY50LDFJIVQWGV.SQUARE.jpg http://cdn.instructables.com/FUY/50LD/FJIVQWGV/FUY50LDFJIVQWGV.SMALL.jpg randofo The breathalyzer microphone is a system for the inconscpicuous collection of blood-alcohol content level data sets. In other words, you can measure a person's sobriety with a device, that for all intents and purposes, looks no different than a standard microphone. This tool adds new dimensions of tr...
By: randofo

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Wed, 6 Aug 2008 16:04:24 PDT
DPScope - Build Your Own USB/PC-Based Oscilloscope http://www.instructables.com/id/DPScope-Build-Your-Own-USBPC-Based-Oscilloscope/
DPScope - Build Your Own USB/PC-Based Oscilloscope - More DIY How To Projects]]> http://cdn.instructables.com/FSU/Y9WL/G5KP876K/FSUY9WLG5KP876K.SQUARE2.jpg http://cdn.instructables.com/FSU/Y9WL/G5KP876K/FSUY9WLG5KP876K.SQUARE.jpg http://cdn.instructables.com/FSU/Y9WL/G5KP876K/FSUY9WLG5KP876K.SMALL.jpg womai Instrument Specifications Below you see the specifications of the instruments. If you are familiar with oscilloscopes you will see that the DPScope has pretty much all the features you'd expect from a decent lower-end instrument. If you aren't a number freak, feel free to skip this page as fas...
By: womai

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Fri, 19 Feb 2010 00:50:43 PST
Test Tube Flower Vase http://www.instructables.com/id/Test-Tube-Flower-Vase/
Test Tube Flower Vase - More DIY How To Projects]]> http://cdn.instructables.com/FBP/5KS8/G4E0XWXQ/FBP5KS8G4E0XWXQ.SQUARE2.jpg http://cdn.instructables.com/FBP/5KS8/G4E0XWXQ/FBP5KS8G4E0XWXQ.SQUARE.jpg http://cdn.instructables.com/FBP/5KS8/G4E0XWXQ/FBP5KS8G4E0XWXQ.SMALL.jpg noahw This is a variation on a flower vase that I've wanted to do for some time that uses test tubes to arrange individual flowers.  The sometimes daunting, monolith quality of the conventional flower bouquet is deconstructed and scientificified (Dear English Language, Please accept my word.  Best, Noah...
By: noahw

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Wed, 20 Jan 2010 12:45:14 PST