Instructables: exploring - technology - electronics - popular http://www.instructables.com Tue, 31 May 2016 13:03:54 PDT BLOX v1.01 DC Brush Motor for Learning Fun http://www.instructables.com/id/DC-Brush-Motor-for-Learning-Fun/
DC Brush Motor for Learning Fun - More DIY How To Projects]]> http://cdn.instructables.com/F79/XG6B/GUCF4PPE/F79XG6BGUCF4PPE.SQUARE2.jpg http://cdn.instructables.com/F79/XG6B/GUCF4PPE/F79XG6BGUCF4PPE.SQUARE.jpg http://cdn.instructables.com/F79/XG6B/GUCF4PPE/F79XG6BGUCF4PPE.SMALL.jpg Phil B A friend has a young son who is newly fascinated by motors and electrical things. This Instructable replicates a DC electric demonstration motor I made about two decades ago for my own children. It is offered here for the sake of parents and teachers like my friend who want to help young people buil...
By: Phil B

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Sat, 29 Oct 2011 13:41:04 PDT
Car Dash Tablet http://www.instructables.com/id/Car-Dash-Tablet/
Car Dash Tablet - More DIY How To Projects]]> http://cdn.instructables.com/FFT/38RQ/IOLP46EY/FFT38RQIOLP46EY.SQUARE2.jpg http://cdn.instructables.com/FFT/38RQ/IOLP46EY/FFT38RQIOLP46EY.SQUARE.jpg http://cdn.instructables.com/FFT/38RQ/IOLP46EY/FFT38RQIOLP46EY.SMALL.jpg AykutC Putting a tablet in car dash.This project was on my mind for a long time.Somehow I couldn’t find any free time to build this project. But now I have done it and I’ll tell you how.My car is a VW Polo (2014 ) and don’t have any bluetooth connectivity with smartphones or so. And also it doesn’t have a...
By: AykutC

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Wed, 25 May 2016 08:21:38 PDT
Awesome Homemade Door bell http://www.instructables.com/id/Awesome-Homemade-Door-bell/
Awesome Homemade Door bell - More DIY How To Projects]]> http://cdn.instructables.com/FLS/XYPR/FCEIOHZB/FLSXYPRFCEIOHZB.SQUARE2.jpg http://cdn.instructables.com/FLS/XYPR/FCEIOHZB/FLSXYPRFCEIOHZB.SQUARE.jpg http://cdn.instructables.com/FLS/XYPR/FCEIOHZB/FLSXYPRFCEIOHZB.SMALL.jpg chacho5 This door bell is great for your room, and only costs three bucks! This is my 1st instructable, so I hope you enjoy! ps there is NO SOLDERING REQUIRED! i would really appreciate it if you would comment and tell me how I could make it better! What You Need Okay, here is what you will need: 1. ...
By: chacho5

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Sat, 9 Feb 2008 14:04:42 PST
Repair dead AVR's - Attiny fusebit doctor (HVSP) http://www.instructables.com/id/AVR-Attiny-fusebit-doctor-HVSP/
Repair dead AVR's - Attiny fusebit doctor (HVSP) - More DIY How To Projects]]> http://cdn.instructables.com/FTB/95EB/G51GAISR/FTB95EBG51GAISR.SQUARE2.jpg http://cdn.instructables.com/FTB/95EB/G51GAISR/FTB95EBG51GAISR.SQUARE.jpg http://cdn.instructables.com/FTB/95EB/G51GAISR/FTB95EBG51GAISR.SMALL.jpg manekinen Did you make a mistake while programming fusebits, or purposely disabled reset pin (RSTDISBL) or ISP programming (SPIEN)? No need to buy or make inconvenient HV programmer only for unlock couple of Tiny AVR’s. This Attiny fusebit HV doctor will cure your dead tiny microcontrollers, by restoring all ...
By: manekinen

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Mon, 1 Feb 2010 11:34:28 PST
Easy IoT weather station with multiple sensors http://www.instructables.com/id/Esay-IoT-Weather-Station-With-Multiple-Sensors/
Easy IoT weather station with multiple sensors - More DIY How To Projects]]> http://cdn.instructables.com/FET/5010/IOEKMLBR/FET5010IOEKMLBR.SQUARE2.jpg http://cdn.instructables.com/FET/5010/IOEKMLBR/FET5010IOEKMLBR.SQUARE.jpg http://cdn.instructables.com/FET/5010/IOEKMLBR/FET5010IOEKMLBR.SMALL.jpg Ingenerare Hi all!In this tutorial, I will let you see how to build an easy and cheap IOT weather station. Everyone who has some basic arduino experience can make this project. The retrieved data is pushed via a wifi shield to Thingspeak. The data can be analysed on the Thingspeak channel or on a personal web...
By: Ingenerare

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Sat, 21 May 2016 20:04:14 PDT
DIY MP3 to Cassette or Instrument to Cassette Adapter http://www.instructables.com/id/DIY-MP3-to-Cassette-or-Instrument-to-Cassette-Adap/
DIY MP3 to Cassette or Instrument to Cassette Adapter - More DIY How To Projects]]> http://cdn.instructables.com/FBN/FQ9H/HCB8TM2Z/FBNFQ9HHCB8TM2Z.SQUARE2.jpg http://cdn.instructables.com/FBN/FQ9H/HCB8TM2Z/FBNFQ9HHCB8TM2Z.SQUARE.jpg http://cdn.instructables.com/FBN/FQ9H/HCB8TM2Z/FBNFQ9HHCB8TM2Z.SMALL.jpg searx A little while back I got very excited when an instructable came up that was a so-called cassette tape mp3 player, but I was quite disappointed when I found out that it was just sticking an mp3 player into a cassette body. I did some looking around and discovered that no one had figured out how to c...
By: searx

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Sun, 27 Jan 2013 18:58:07 PST
Use a combo amp as a cabinet (cheap and easy) http://www.instructables.com/id/Use-a-combo-amp-as-a-cabinet-cheap-and-easy/
Use a combo amp as a cabinet (cheap and easy) - More DIY How To Projects]]> http://cdn.instructables.com/F7K/4YUO/I78VIWP0/F7K4YUOI78VIWP0.SQUARE2.jpg http://cdn.instructables.com/F7K/4YUO/I78VIWP0/F7K4YUOI78VIWP0.SQUARE.jpg http://cdn.instructables.com/F7K/4YUO/I78VIWP0/F7K4YUOI78VIWP0.SMALL.jpg legitbush This is the simplest way to use a combo amp as a speaker cabinet for a separate amp head. I am using a Line 6 Spider IV combo here but most combos will work this way. The required parts only cost £8.50 ($13) and this project can be undertaken by someone with little to no electrical skills like mysel...
By: legitbush

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Tue, 24 Feb 2015 10:34:59 PST
Making a simple spybug. http://www.instructables.com/id/Making-a-simple-spybug/
Making a simple spybug. - More DIY How To Projects]]> http://cdn.instructables.com/FP6/QAAZ/GA1BCY7J/FP6QAAZGA1BCY7J.SQUARE2.jpg http://cdn.instructables.com/FP6/QAAZ/GA1BCY7J/FP6QAAZGA1BCY7J.SQUARE.jpg http://cdn.instructables.com/FP6/QAAZ/GA1BCY7J/FP6QAAZGA1BCY7J.SMALL.jpg cliffyd Here a easy instructable to make an FM spybug from a few common components. The hardest part in this is the making of the PCB. You can just use perf-board though if you perfer. Let's get started! Parts List The following componenets are needed: 1) 1pc. 2N 3904 Transistor 2) 1pc. 4k7 Resistor (ye...
By: cliffyd

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Sat, 5 Jun 2010 10:52:44 PDT
Setting up a VX-6 ham radio for the beginner http://www.instructables.com/id/How-to-program-a-Yaesu-VX6-ham-radio/
Setting up a VX-6 ham radio for the beginner - More DIY How To Projects]]> http://cdn.instructables.com/FD6/ZGYH/GU1I4DBJ/FD6ZGYHGU1I4DBJ.SQUARE2.jpg http://cdn.instructables.com/FD6/ZGYH/GU1I4DBJ/FD6ZGYHGU1I4DBJ.SQUARE.jpg http://cdn.instructables.com/FD6/ZGYH/GU1I4DBJ/FD6ZGYHGU1I4DBJ.SMALL.jpg hamtron42 Materials: Amateur Radio License (required to legally operate the radio) Yaesu VX-6 radio These Instructions Time: 2-5 minutes Programming and using a Yaesu VX-6 handheld can be a complex task as the radio is almost entirely menu driven. These instructions will cover three of the main tasks to ope...
By: hamtron42

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Fri, 21 Oct 2011 15:22:51 PDT
Taser (stun gun) from a battery charger adapter V2.0 http://www.instructables.com/id/Taser-shock-device-from-a-battery-charger-adapter-/
Taser (stun gun) from a battery charger adapter V2.0 - More DIY How To Projects]]> http://cdn.instructables.com/FU7/PDOM/I5Z7KPLH/FU7PDOMI5Z7KPLH.SQUARE2.jpg http://cdn.instructables.com/FU7/PDOM/I5Z7KPLH/FU7PDOMI5Z7KPLH.SQUARE.jpg http://cdn.instructables.com/FU7/PDOM/I5Z7KPLH/FU7PDOMI5Z7KPLH.SMALL.jpg Tlaci18 Hi everybody :)In this instructable, I'm gonna show you how I made a taser out of a battery charger adapter (little black box, you push into the wall socket :) )I have already made a shocking device earlier (about 2 years ago), but it was not portable, and looks terrible :DSo in a snowy sunday after...
By: Tlaci18

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Sun, 8 Feb 2015 09:12:10 PST
Non-inverting amplifier with uA741 http://www.instructables.com/id/Non-inverting-amplifier-with-uA741/
Non-inverting amplifier with uA741 - More DIY How To Projects]]> http://cdn.instructables.com/FXE/J8RT/GAFDTBQ1/FXEJ8RTGAFDTBQ1.SQUARE2.jpg http://cdn.instructables.com/FXE/J8RT/GAFDTBQ1/FXEJ8RTGAFDTBQ1.SQUARE.jpg http://cdn.instructables.com/FXE/J8RT/GAFDTBQ1/FXEJ8RTGAFDTBQ1.SMALL.gif ech0s The Operational Amplifier is probably the most versatile Integrated Circuit available.  The most common Op-Amp is the 741 and it is used in many circuits, as it is very cheap. Its main purpose is to amplify (increase) a weak signal. The OP-AMP has two inputs, INVERTING ( - ) and NON-INVERTING (+), ...
By: ech0s

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Tue, 8 Feb 2011 10:22:46 PST
DIY 300 to 75 Ohm TV Antenna Coaxial Baluns http://www.instructables.com/id/DIY-300-to-75-Ohm-TV-Antenna-Coaxial-Baluns/
DIY 300 to 75 Ohm TV Antenna Coaxial Baluns - More DIY How To Projects]]> http://cdn.instructables.com/FUX/W97G/H3Z3TWXW/FUXW97GH3Z3TWXW.SQUARE2.jpg http://cdn.instructables.com/FUX/W97G/H3Z3TWXW/FUXW97GH3Z3TWXW.SQUARE.jpg http://cdn.instructables.com/FUX/W97G/H3Z3TWXW/FUXW97GH3Z3TWXW.SMALL.jpg supergilligan Here are 2 sites I found with information on how to make Television Baluns. However, depending on your situation though, You might just go to the Deseret Industries and pick a professionally made Balun for 50¢. Find parts and start DIYing The websites I have found so far are below. http://hom...
By: supergilligan

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Wed, 27 Jun 2012 20:47:17 PDT
Baofeng FB-F9 V2+ Ham Radio Modification http://www.instructables.com/id/Baofeng-FB-F9-V2-Ham-Radio-Modification/
Baofeng FB-F9 V2+ Ham Radio Modification - More DIY How To Projects]]> http://cdn.instructables.com/F14/KA18/I4UNT9MD/F14KA18I4UNT9MD.SQUARE2.jpg http://cdn.instructables.com/F14/KA18/I4UNT9MD/F14KA18I4UNT9MD.SQUARE.jpg http://cdn.instructables.com/F14/KA18/I4UNT9MD/F14KA18I4UNT9MD.SMALL.jpg kc8hps This Instructable addresses the following:1. My brief synopsis of the FB-F9 V2+ Baofeng H.T.2. Overview of the microphone modification that I made.3. Operation De-Glitz, (It was just a bit to shiny/blingy for my taste). A brief overview of the BF-F9 V2+ I recently purchased the radio on Ebay from...
By: kc8hps

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Wed, 14 Jan 2015 16:54:40 PST
DIY Electro-Magnetic Levitation! http://www.instructables.com/id/DIY-Electro-Magnetic-Levitation/
DIY Electro-Magnetic Levitation! - More DIY How To Projects]]> http://cdn.instructables.com/FMT/67SZ/IOBR392Y/FMT67SZIOBR392Y.SQUARE2.jpg http://cdn.instructables.com/FMT/67SZ/IOBR392Y/FMT67SZIOBR392Y.SQUARE.jpg http://cdn.instructables.com/FMT/67SZ/IOBR392Y/FMT67SZIOBR392Y.SMALL.jpg DrewPaulDesigns This is a project that will amaze and inspire! What good is all of that science know-how if we can't do something cool with it, right?With this project we are going to use a couple of components that are easy to make or find to build a jaw dropping, mind bending Electromagnetic Levitator, or EMLEV a...
By: DrewPaulDesigns

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Wed, 18 May 2016 02:37:08 PDT
Atmel Xmega USB/Serial Arbitrary Waveform Generator http://www.instructables.com/id/Atmel-Xmega-USBSerial-Arbitrary-Waveform-Generato/
Atmel Xmega USB/Serial Arbitrary Waveform Generator - More DIY How To Projects]]> http://cdn.instructables.com/FWF/PWX4/G79D44SM/FWFPWX4G79D44SM.SQUARE2.jpg http://cdn.instructables.com/FWF/PWX4/G79D44SM/FWFPWX4G79D44SM.SQUARE.jpg http://cdn.instructables.com/FWF/PWX4/G79D44SM/FWFPWX4G79D44SM.SMALL.jpg wandererwolf This instructable walks you through programming and using the Boston Android Xmega evaluation board to work as a simple arbitrary waveform generator taking advantage of the integrated 12bit DAC and high speed DMA controller. I have provided precompiled firmware as well as source code which can be lo...
By: wandererwolf

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Sat, 27 Mar 2010 12:51:33 PDT
DIY Boost Converter || How to Step Up DC Voltage Efficiently http://www.instructables.com/id/DIY-Boost-Converter-How-to-Step-Up-DC-Voltage-Effi/
DIY Boost Converter || How to Step Up DC Voltage Efficiently - More DIY How To Projects]]> http://cdn.instructables.com/F7T/3CAG/IO7GUCI1/F7T3CAGIO7GUCI1.SQUARE2.jpg http://cdn.instructables.com/F7T/3CAG/IO7GUCI1/F7T3CAGIO7GUCI1.SQUARE.jpg http://cdn.instructables.com/F7T/3CAG/IO7GUCI1/F7T3CAGIO7GUCI1.SMALL.jpg GreatScottLab In this project I will show you an efficient and common way how to step up DC voltages. I will also demonstrate how easy it can be to build a boost converter with the help of an ATtiny85. Let's get started! Watch the video! The video gives you all the information you need to create your own boost...
By: GreatScottLab

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Sun, 15 May 2016 07:51:22 PDT
How to Solder EL (Electroluminescent) Wire http://www.instructables.com/id/How-to-Solder-EL-Electroluminescent-Wire/
How to Solder EL (Electroluminescent) Wire - More DIY How To Projects]]> http://cdn.instructables.com/F4H/2WM3/F82EU3J6/F4H2WM3F82EU3J6.SQUARE2.jpg http://cdn.instructables.com/F4H/2WM3/F82EU3J6/F4H2WM3F82EU3J6.SQUARE.jpg http://cdn.instructables.com/F4H/2WM3/F82EU3J6/F4H2WM3F82EU3J6.SMALL.jpg leonardo ismael EL Wire (electroluminescent wire) is a flexible, easy to work with, low power consumption light source that you can use to light up just about anything from skirts to sculptures. The wire is made from two different sets of wires that are coated with phosphor and plastic that light up when you hook i...
By: leonardo ismael

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Tue, 6 Nov 2007 14:33:25 PST
Make Your Own LED Sign VU Meter http://www.instructables.com/id/Make-Your-Own-LED-Sign-VU-Meter/
Make Your Own LED Sign VU Meter - More DIY How To Projects]]> http://cdn.instructables.com/FNO/FGQW/INXGQIKR/FNOFGQWINXGQIKR.SQUARE2.jpg http://cdn.instructables.com/FNO/FGQW/INXGQIKR/FNOFGQWINXGQIKR.SQUARE.jpg http://cdn.instructables.com/FNO/FGQW/INXGQIKR/FNOFGQWINXGQIKR.SMALL.jpg GreatScottLab In this project I will show you how to create a custom LED sign that reacts to the loudness of your music, just like a VU meter does. Let's get started! Watch the video! The video gives you all information you need to build this project. But in the next steps you can find a parts list, schematic ...
By: GreatScottLab

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Sun, 8 May 2016 07:54:11 PDT
DIY Lithium-ion battery charger http://www.instructables.com/id/DIY-Lithium-ion-Battery-Charger/
DIY Lithium-ion battery charger - More DIY How To Projects]]> http://cdn.instructables.com/F59/T88J/IO2TOQH8/F59T88JIO2TOQH8.SQUARE2.jpg http://cdn.instructables.com/F59/T88J/IO2TOQH8/F59T88JIO2TOQH8.SQUARE.jpg http://cdn.instructables.com/F59/T88J/IO2TOQH8/F59T88JIO2TOQH8.SMALL.jpg victoryking Batteries play an important role in any battery operated project/products. Rechargeable batteries are expensive, as we need to buy battery charger along with batteries (until now) compared to use and throw batteries, but are great value for money. Rechargeable batteries use several different combina...
By: victoryking

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Thu, 12 May 2016 04:25:08 PDT
Reverse Polarity Protection Circuits http://www.instructables.com/id/Reverse-Polarity-Protection-Circuits/
Reverse Polarity Protection Circuits - More DIY How To Projects]]> http://cdn.instructables.com/FDG/EY20/H4AGK0SM/FDGEY20H4AGK0SM.SQUARE2.jpg http://cdn.instructables.com/FDG/EY20/H4AGK0SM/FDGEY20H4AGK0SM.SQUARE.jpg http://cdn.instructables.com/FDG/EY20/H4AGK0SM/FDGEY20H4AGK0SM.SMALL.jpg ProvideYourOwn It is often useful to provide protection against accidental reverse polarity for your circuits. This brief review will explore three simple methods for adding this protection to your projects. For a more in-depth tutorial, see this article. Diode Simply using a diode as shown in the first circuit i...
By: ProvideYourOwn

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Fri, 13 Jul 2012 16:34:13 PDT
High Voltage Multiplier http://www.instructables.com/id/High-Voltage-Multiplier/
High Voltage Multiplier - More DIY How To Projects]]> http://cdn.instructables.com/F9W/XWMK/F8RP7YF0/F9WXWMKF8RP7YF0.SQUARE2.jpg http://cdn.instructables.com/F9W/XWMK/F8RP7YF0/F9WXWMKF8RP7YF0.SQUARE.jpg http://cdn.instructables.com/F9W/XWMK/F8RP7YF0/F9WXWMKF8RP7YF0.SMALL.jpg burningsuntech Need more voltage than your supply can deliver? This is the device to build. Based upon the Villard doubler, cascaded in multiple stages, this circuit will multiply a small AC voltage into a huge potential. With a 6000 VAC Oil Burner Transformer and just three stages, you can multiply the potentia...
By: burningsuntech

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Wed, 14 Nov 2007 10:28:26 PST
Tiny ladybug sized FM Spy Bug http://www.instructables.com/id/Tiny-FM-Spy-Bug/
Tiny ladybug sized FM Spy Bug - More DIY How To Projects]]> http://cdn.instructables.com/FKL/DAJB/IN35QQ8C/FKLDAJBIN35QQ8C.SQUARE2.jpg http://cdn.instructables.com/FKL/DAJB/IN35QQ8C/FKLDAJBIN35QQ8C.SQUARE.jpg http://cdn.instructables.com/FKL/DAJB/IN35QQ8C/FKLDAJBIN35QQ8C.SMALL.jpg TomTechTod I wanted to know how small a FM spy bug could be build when manually assembled.This is what I came up with, it measures about 0.05 square inches and is powered by a single 1.55V silver oxide battery.Frankly, this is just a fun object, I don`t have a practical use for it.I`m sure professionnally made...
By: TomTechTod

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Fri, 22 Apr 2016 16:37:57 PDT
$5 Quadcopter Anti-Vibration, Torsion, Stabilizeation Mount http://www.instructables.com/id/Drone-Stabilizer/
$5 Quadcopter Anti-Vibration, Torsion, Stabilizeation Mount - More DIY How To Projects]]> http://cdn.instructables.com/F4T/45WN/INKG7BHW/F4T45WNINKG7BHW.SQUARE2.jpg http://cdn.instructables.com/F4T/45WN/INKG7BHW/F4T45WNINKG7BHW.SQUARE.jpg http://cdn.instructables.com/F4T/45WN/INKG7BHW/F4T45WNINKG7BHW.SMALL.jpg Just4Fun Media This inexpensive torsion mount removes jitters and Jello Effect (Vibrational Aberration) from your quadcopter (I used a Syma X8) video. This setup is suited for a GoPro, but the quarter inch mounting system is compatible with all tripod mounts, including point and shoot cameras. The mount is adjusta...
By: Just4Fun Media

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Fri, 29 Apr 2016 08:55:23 PDT
DIY 9 volt battery connector for free http://www.instructables.com/id/DIY-9-volt-battery-connector-for-free/
DIY 9 volt battery connector for free - More DIY How To Projects]]> http://cdn.instructables.com/FL1/XYOU/HD4VHR8D/FL1XYOUHD4VHR8D.SQUARE2.jpg http://cdn.instructables.com/FL1/XYOU/HD4VHR8D/FL1XYOUHD4VHR8D.SQUARE.jpg http://cdn.instructables.com/FL1/XYOU/HD4VHR8D/FL1XYOUHD4VHR8D.SMALL.jpg miceuz Usually cheap 9 volt battery connectors that you can buy are flimsy and don't last for long. Here is a way to make yourself a battery terminal that will last. Oh, did I mention it's almost free? You will need: * dead 9 volt battery * pliers * sharp knife * soldering iron + solder + flux * red and ...
By: miceuz

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Sat, 6 Oct 2012 03:08:27 PDT
Pure sine wave inverter http://www.instructables.com/id/Pure-sine-wave-inverter/
Pure sine wave inverter - More DIY How To Projects]]> http://cdn.instructables.com/FHN/ZKOZ/I0TVON6B/FHNZKOZI0TVON6B.SQUARE2.jpg http://cdn.instructables.com/FHN/ZKOZ/I0TVON6B/FHNZKOZI0TVON6B.SQUARE.jpg http://cdn.instructables.com/FHN/ZKOZ/I0TVON6B/FHNZKOZI0TVON6B.SMALL.jpg maryan_r85 My research Pure sine wave inverter using atmel attiny 13 and IR2110 mosfet driver This is my pure sine wave inverter. Works great with all kind of sensitive electronics like TV's, electrical drilling machines. The maximum output power is around 300W depending which transformer is used.The main ...
By: maryan_r85

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Tue, 7 Oct 2014 07:23:28 PDT
How To Make A High Voltage Power Supply http://www.instructables.com/id/How-To-Make-A-High-Voltage-Power-Supply/
How To Make A High Voltage Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FLR/YFT7/FJIVQWCR/FLRYFT7FJIVQWCR.SQUARE2.jpg http://cdn.instructables.com/FLR/YFT7/FJIVQWCR/FLRYFT7FJIVQWCR.SQUARE.jpg http://cdn.instructables.com/FLR/YFT7/FJIVQWCR/FLRYFT7FJIVQWCR.SMALL.jpg rocketman221 This power supply puts out 400 volts maximum and stores it in a capacitor bank. Mine is 2820 uF. You could use more or less capacitors. I originally built this to power a small coil gun but it can be used for whatever you need it for. It runs off 3.3 volts but it will run off of 2 "D" size batteries...
By: rocketman221

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Sat, 8 Nov 2008 17:15:55 PST
DIY Bench Power Supply (Dual-Channel) http://www.instructables.com/id/DIY-Bench-Power-Supply-Dual-Channel/
DIY Bench Power Supply (Dual-Channel) - More DIY How To Projects]]> http://cdn.instructables.com/FO2/TD7B/INU1FQBB/FO2TD7BINU1FQBB.SQUARE2.jpg http://cdn.instructables.com/FO2/TD7B/INU1FQBB/FO2TD7BINU1FQBB.SQUARE.jpg http://cdn.instructables.com/FO2/TD7B/INU1FQBB/FO2TD7BINU1FQBB.SMALL.jpg supernova432 Every electronic hobbyist needs a variable power supply for prototyping and testing, but they can be very expensive. I will show you how to build a cheap yet reliable power supply. ‚ÄčThe Parts List: The Parts List: To build this specific power supply, you will need the following: 1x Switching Pow...
By: supernova432

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Thu, 5 May 2016 04:41:58 PDT
Make your own Ferrite to improve magnetic fields http://www.instructables.com/id/Make-your-own-Ferrite-to-improve-magnetic-fields/
Make your own Ferrite to improve magnetic fields - More DIY How To Projects]]> http://cdn.instructables.com/FNX/01ZJ/HWG0CWKK/FNX01ZJHWG0CWKK.SQUARE2.jpg http://cdn.instructables.com/FNX/01ZJ/HWG0CWKK/FNX01ZJHWG0CWKK.SQUARE.jpg http://cdn.instructables.com/FNX/01ZJ/HWG0CWKK/FNX01ZJHWG0CWKK.SMALL.jpg Downunder35m Update 03/07/2015: I found the right solution - check the last step!How did it all start you might wonder, so I will let you know ;)You might have seen my Instructable for the Simple Induction Heater and with my first one I felt the need to find ways of improving the output power.The elctronically m...
By: Downunder35m

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Sun, 15 Jun 2014 19:00:31 PDT
ATARI 2600 Video Composite mod http://www.instructables.com/id/ATARI-2600-Video-Composite-mod/
ATARI 2600 Video Composite mod - More DIY How To Projects]]> http://cdn.instructables.com/FFI/6OQ2/IE7J5HGI/FFI6OQ2IE7J5HGI.SQUARE2.jpg http://cdn.instructables.com/FFI/6OQ2/IE7J5HGI/FFI6OQ2IE7J5HGI.SQUARE.jpg http://cdn.instructables.com/FFI/6OQ2/IE7J5HGI/FFI6OQ2IE7J5HGI.SMALL.jpg Inspektor Gadjet Video Composite Mod – ATARI 2600 Introduction:I bought my ATARI 2600 (4 Switches) in the year 2003 on an international auction for 30 dollars. At this time I was obsessed with getting all the 8 bit music systems possible, Commodores, Ataris, Nintendos, FM Chips… Without paying too m...
By: Inspektor Gadjet

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Sun, 6 Sep 2015 03:22:07 PDT
Measure distances on a photo using Google Sketchup http://www.instructables.com/id/Measure-distances-on-a-photo-using-Google-Sketchup/
Measure distances on a photo using Google Sketchup - More DIY How To Projects]]> http://cdn.instructables.com/F7U/3Y9T/HCJO50WC/F7U3Y9THCJO50WC.SQUARE2.jpg http://cdn.instructables.com/F7U/3Y9T/HCJO50WC/F7U3Y9THCJO50WC.SQUARE.jpg http://cdn.instructables.com/F7U/3Y9T/HCJO50WC/F7U3Y9THCJO50WC.SMALL.jpg danjovic Some time ago a friend sent me some pictures of a printer expansion card for a brazilian ZX Spectrum. In order to produce a PCB layout for a clone of such board i needed some tool to make measurements based on a photo, and the choosen one was Google Sketchup. Importing the Image Before import...
By: danjovic

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Fri, 1 Feb 2013 21:08:36 PST
GSM tracker for car localization http://www.instructables.com/id/GSM-tracker-for-car-localization/
GSM tracker for car localization - More DIY How To Projects]]> http://cdn.instructables.com/FWH/IW61/IF6NMKKP/FWHIW61IF6NMKKP.SQUARE2.jpg http://cdn.instructables.com/FWH/IW61/IF6NMKKP/FWHIW61IF6NMKKP.SQUARE.jpg http://cdn.instructables.com/FWH/IW61/IF6NMKKP/FWHIW61IF6NMKKP.SMALL.jpg Nobilis What is it all about?This project is a cheap solution to install a car or bike tracking gadget. I made it to make sure I can always get the position of my car in case of it gets stolen.How does it work?You have basically two choices to get position data: have a GSM or a GPS tracking tool. GPS is...
By: Nobilis

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Wed, 30 Sep 2015 06:36:07 PDT
How to make a mini Tesla coil 9V http://www.instructables.com/id/How-to-make-a-mini-Tesla-coil-9V/
How to make a mini Tesla coil 9V - More DIY How To Projects]]> http://cdn.instructables.com/F8E/8CDJ/ICP0WBX8/F8E8CDJICP0WBX8.SQUARE2.jpg http://cdn.instructables.com/F8E/8CDJ/ICP0WBX8/F8E8CDJICP0WBX8.SQUARE.jpg http://cdn.instructables.com/F8E/8CDJ/ICP0WBX8/F8E8CDJICP0WBX8.SMALL.jpg romanursuhack In today's video I'll show you a great idea, a long awaited video about how to make a Tesla coil at the minimal expenses. It's very easily to make a Tesla coil at home. I hope you will make it without any problems after watching this video. HOW TO MAKE (VIDEO) Photo Instruction Photo Instr...
By: romanursuhack

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Wed, 29 Jul 2015 10:18:19 PDT
View Your PCB Design in 3D Online for Free http://www.instructables.com/id/View-Your-PCB-Design-in-3D-Online-for-Free/
View Your PCB Design in 3D Online for Free - More DIY How To Projects]]> http://cdn.instructables.com/FJN/3YP7/H0OIVHMC/FJN3YP7H0OIVHMC.SQUARE2.jpg http://cdn.instructables.com/FJN/3YP7/H0OIVHMC/FJN3YP7H0OIVHMC.SQUARE.jpg http://cdn.instructables.com/FJN/3YP7/H0OIVHMC/FJN3YP7H0OIVHMC.SMALL.jpg Mayhew Labs Whether you're a first-time circuit board designer or you've been doing it for years, you know how difficult it can be to visualize layout, spacing, and relative size in PCB layout software.  You might have also experienced that uneasy "I hope everything is right" feeling when you submit your design...
By: Mayhew Labs

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Mon, 16 Apr 2012 09:10:32 PDT
5 $ Solar power bank from recycled laptop battery http://www.instructables.com/id/5-Solar-Power-Bank-From-Recycled-Laptop-Battery/
5 $ Solar power bank from recycled laptop battery - More DIY How To Projects]]> http://cdn.instructables.com/FJU/IVJL/INM7P3IA/FJUIVJLINM7P3IA.SQUARE2.jpg http://cdn.instructables.com/FJU/IVJL/INM7P3IA/FJUIVJLINM7P3IA.SQUARE.jpg http://cdn.instructables.com/FJU/IVJL/INM7P3IA/FJUIVJLINM7P3IA.SMALL.jpg geekrex As some of you know that my college was having a science exhibition , their was also a project display competition going for the Juniors. My Girl friend Meghla was interested to participate in that , they asked me what to make i suggested them this project and mentored them while making so their ca...
By: geekrex

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Sat, 30 Apr 2016 11:52:58 PDT
$1 AUTOMATIC WATER LEVEL CONTROLLER http://www.instructables.com/id/1-AUTOMATIC-WATER-LEVEL-CONTROLLER/
$1 AUTOMATIC WATER LEVEL CONTROLLER - More DIY How To Projects]]> http://cdn.instructables.com/FKB/AK46/INNGL87W/FKBAK46INNGL87W.SQUARE2.jpg http://cdn.instructables.com/FKB/AK46/INNGL87W/FKBAK46INNGL87W.SQUARE.jpg http://cdn.instructables.com/FKB/AK46/INNGL87W/FKBAK46INNGL87W.SMALL.jpg vina1991 Hello friendsToday I am back with another project called $1 AUTOMATIC WATER LEVEL CONTROLLER.It’s an automatic switching circuit that used to control an AC water pump. Operation of this circuit is simple.wen the water level goes below the limit the lower level sensor will detect it and activate the ...
By: vina1991

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Sat, 30 Apr 2016 11:38:59 PDT
Reuse Old Phone Batteries As a Powerbank (earth Day Part 1) http://www.instructables.com/id/Reuse-Old-Phone-Batteries-As-a-Powerbank-earth-Day/
Reuse Old Phone Batteries As a Powerbank (earth Day Part 1) - More DIY How To Projects]]> http://cdn.instructables.com/FJL/MY81/INBZ2520/FJLMY81INBZ2520.SQUARE2.jpg http://cdn.instructables.com/FJL/MY81/INBZ2520/FJLMY81INBZ2520.SQUARE.jpg http://cdn.instructables.com/FJL/MY81/INBZ2520/FJLMY81INBZ2520.SMALL.jpg led_freak I guess you probably also belong to the majority of the worlds population that owns a smartphone and you probably had more than one during the past few years of smartphone evolution.With them, come used lithium ion batteries that you can not just keep on using inside your new phone.So you are stuck ...
By: led_freak

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Sat, 23 Apr 2016 10:23:04 PDT
Panelizing PCBs for Seeed Using Eagle Free / Light http://www.instructables.com/id/Panelizing-PCBs-for-Seeed-Using-Eagle-Free-Light/
Panelizing PCBs for Seeed Using Eagle Free / Light - More DIY How To Projects]]> http://cdn.instructables.com/FSE/J9YR/H1ZG79OX/FSEJ9YRH1ZG79OX.SQUARE2.jpg http://cdn.instructables.com/FSE/J9YR/H1ZG79OX/FSEJ9YRH1ZG79OX.SQUARE.jpg http://cdn.instructables.com/FSE/J9YR/H1ZG79OX/FSEJ9YRH1ZG79OX.SMALL.jpg spaceagerobotics Some PCB fab houses (like SeeedStudio, with their Fusion PCB service) will allow you to panelize smaller PCBs.  For example, if you have a 2.5cm x 5cm board, you could panelize two of them on to a single 5mm x 5mm PCB.  Or, put a 7cm x 7cm board and a bunch of 3cm x 3cm boards onto a 10cm x 10cm pan...
By: spaceagerobotics

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Fri, 18 May 2012 18:48:14 PDT
Parallel and Series Circuit http://www.instructables.com/id/Parallel-and-Series-Circuit/
Parallel and Series Circuit - More DIY How To Projects]]> http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif tjayfowler There are two basic types of electrical circuits; series and parallel. A complex circuit can consist of sub circuits of each kind. Series Circuit In a series circuit, the path of electrons from the negative (-) side to the positive (+) side goes through all the electrical components of the circui...
By: tjayfowler

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Fri, 18 Nov 2005 14:13:37 PST
Gray Hoverman TV Antenna Final Assembly http://www.instructables.com/id/Gray-Hoverman-TV-Antenna-Final-Assembly/
Gray Hoverman TV Antenna Final Assembly - More DIY How To Projects]]> http://cdn.instructables.com/FWN/VWLI/GITI74R4/FWNVWLIGITI74R4.SQUARE2.jpg http://cdn.instructables.com/FWN/VWLI/GITI74R4/FWNVWLIGITI74R4.SQUARE.jpg http://cdn.instructables.com/FWN/VWLI/GITI74R4/FWNVWLIGITI74R4.SMALL.jpg unclesam The Gray-Hoverman antenna final assembly is straightforward once all the parts are made. This is the last of several Instructables covering construction of this antenna that receives UHF stations and, optionally, those in the high end of the VHF band. A list of the other instructables is provided. T...
By: unclesam

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Wed, 12 Jan 2011 13:13:14 PST
How to Make a Voltage Inverter http://www.instructables.com/id/How-to-Make-a-Voltage-Inverter/
How to Make a Voltage Inverter - More DIY How To Projects]]> http://cdn.instructables.com/F8Z/PF1S/GD2J28G2/F8ZPF1SGD2J28G2.SQUARE2.jpg http://cdn.instructables.com/F8Z/PF1S/GD2J28G2/F8ZPF1SGD2J28G2.SQUARE.jpg http://cdn.instructables.com/F8Z/PF1S/GD2J28G2/F8ZPF1SGD2J28G2.SMALL.jpg Lenny24 Hello There! Now, heres my first Instructable and Ill show you, how to make a small Voltage Inverter (I mean, getting a NEGATIVE Voltage out of a POSITIVE) on you Bredboard. Some Amplifying circuits need negative voltage to work good. This circuit schould deliver enough current to power a small Op...
By: Lenny24

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Tue, 24 Aug 2010 10:49:20 PDT
Bluetooth page-turner pedal for sheet music apps http://www.instructables.com/id/Bluetooth-page-turner-pedal-for-sheet-music-apps/
Bluetooth page-turner pedal for sheet music apps - More DIY How To Projects]]> http://cdn.instructables.com/FNZ/YRK1/HTDSPSHT/FNZYRK1HTDSPSHT.SQUARE2.jpg http://cdn.instructables.com/FNZ/YRK1/HTDSPSHT/FNZYRK1HTDSPSHT.SQUARE.jpg http://cdn.instructables.com/FNZ/YRK1/HTDSPSHT/FNZYRK1HTDSPSHT.SMALL.jpg peakecentral This Instructable uses an Bluefruit EZ-Key module to make a Bluetooth page turner pedal. The pedal enables me to easily turn the page on any sheet music app I wish to use on my tablet, without taking my hands off my saxophone. I use it with the Mobile Sheets app on my Android tablet, but it works wi...
By: peakecentral

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Sun, 30 Mar 2014 09:41:14 PDT
Easy SSTC, Slayer Exciter On Steroids! http://www.instructables.com/id/Easy-SSTC-Slayer-Exciter-On-Steroids/
Easy SSTC, Slayer Exciter On Steroids! - More DIY How To Projects]]> http://cdn.instructables.com/FVQ/KYUF/IEB88FTY/FVQKYUFIEB88FTY.SQUARE2.jpg http://cdn.instructables.com/FVQ/KYUF/IEB88FTY/FVQKYUFIEB88FTY.SQUARE.jpg http://cdn.instructables.com/FVQ/KYUF/IEB88FTY/FVQKYUFIEB88FTY.SMALL.jpg -max- In this instructable, I'll show you how to build a REALLY powerful version of the slayer exciter circuit! This design is powerful enough to be considered an SSTC, or Solid State Tesla Coil! It can throw really hot electrical arcs of plasma over 3 inches long, and has the capability to be modulated! ...
By: -max-

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Thu, 10 Sep 2015 08:55:42 PDT
Make A Bridge Rectifier From Diodes http://www.instructables.com/id/Make-A-Bridge-Rectifier-From-Diodes/
Make A Bridge Rectifier From Diodes - More DIY How To Projects]]> http://cdn.instructables.com/FMG/1O4Q/I24LZN2N/FMG1O4QI24LZN2N.SQUARE2.jpg http://cdn.instructables.com/FMG/1O4Q/I24LZN2N/FMG1O4QI24LZN2N.SQUARE.jpg http://cdn.instructables.com/FMG/1O4Q/I24LZN2N/FMG1O4QI24LZN2N.SMALL.jpg Bits4Bots In this project we will build a bridge rectifier.In short, take AC and turn it into DC.For most alternative energy applications, we require a direct current (DC) voltage to be generated - for example to charge a bank of batteries. However wind turbines and wave power generators create an alternating...
By: Bits4Bots

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Thu, 6 Nov 2014 07:06:22 PST
How to memorize the resistor color code http://www.instructables.com/id/How-to-memorize-the-resistor-color-code/
How to memorize the resistor color code - More DIY How To Projects]]> http://cdn.instructables.com/F7P/EZKU/FTDBNH2Z/F7PEZKUFTDBNH2Z.SQUARE2.jpg http://cdn.instructables.com/F7P/EZKU/FTDBNH2Z/F7PEZKUFTDBNH2Z.SQUARE.jpg http://cdn.instructables.com/F7P/EZKU/FTDBNH2Z/F7PEZKUFTDBNH2Z.SMALL.jpg Bagunca How to memorize the Resistor Color Code The reason I came up with this is because in High School and in College they taught us the same offensive phrase, bad boys, etc, but Violet gives willingly. Although this is easy to memorize, it didn't make it easy to remember a color for a number without hav...
By: Bagunca

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Wed, 15 Apr 2009 09:30:20 PDT
Chromecast On/Off Switch http://www.instructables.com/id/Chromecast-OnOff-Switch/
Chromecast On/Off Switch - More DIY How To Projects]]> http://cdn.instructables.com/FMC/G4JT/INER6KJD/FMCG4JTINER6KJD.SQUARE2.jpg http://cdn.instructables.com/FMC/G4JT/INER6KJD/FMCG4JTINER6KJD.SQUARE.jpg http://cdn.instructables.com/FMC/G4JT/INER6KJD/FMCG4JTINER6KJD.SMALL.jpg MatthewM232 As any of you Chromecast owners will know, when you use the TV as the power supply for your Chromecast, your Chromecast will be on as long as the TV is on. Typically this isn't an issue, but we use an aerial to get our live TV and having the Chromecast on interrupts the signal. This switch was a pr...
By: MatthewM232

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Tue, 26 Apr 2016 15:23:24 PDT
How to Factor Polynomials on a Graphing Calculator (TI-83 and TI-84) http://www.instructables.com/id/How-to-Factor-Polynomials-on-a-Graphing-Calculator/
How to Factor Polynomials on a Graphing Calculator (TI-83 and TI-84) - More DIY How To Projects]]> http://cdn.instructables.com/FHU/GIJF/IFK1015Z/FHUGIJFIFK1015Z.SQUARE2.jpg http://cdn.instructables.com/FHU/GIJF/IFK1015Z/FHUGIJFIFK1015Z.SQUARE.jpg http://cdn.instructables.com/FHU/GIJF/IFK1015Z/FHUGIJFIFK1015Z.SMALL.jpg techno249 These instructions will explain step-by-step on how to factor polynomials on a TI-83/TI-84 graphing calculator Begin by selecting the PRGM button and scroll over to NEW, click ENTER and name the program and then click ENTER. Having the name relate to the formula is always a good idea. (Example: ...
By: techno249

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Sat, 10 Oct 2015 14:19:33 PDT
Quick Test for Electronic Tubes http://www.instructables.com/id/Quick-Test-for-Electronic-Tubes/
Quick Test for Electronic Tubes - More DIY How To Projects]]> http://cdn.instructables.com/F1U/URKR/FMEGF0J5/F1UURKRFMEGF0J5.SQUARE2.jpg http://cdn.instructables.com/F1U/URKR/FMEGF0J5/F1UURKRFMEGF0J5.SQUARE.jpg http://cdn.instructables.com/F1U/URKR/FMEGF0J5/F1UURKRFMEGF0J5.SMALL.jpg Phil B A friend was at a yard sale and bought a facsimile antique wall telephone that was really an AM tube radio. The radio did not work. I used a simple way to test the tubes and fixed the problem. Tube Circuitry Until the late 1970s many drug stores and electronics shops sold electron tubes. Th...
By: Phil B

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Sat, 18 Oct 2008 06:58:55 PDT
Replacement LCD TV stand http://www.instructables.com/id/Lost-or-stolen-LCD-TV-stand-Make-your-own-affor/
Replacement LCD TV stand - More DIY How To Projects]]> http://cdn.instructables.com/FQ0/5CRC/HIEZY2F6/FQ05CRCHIEZY2F6.SQUARE2.jpg http://cdn.instructables.com/FQ0/5CRC/HIEZY2F6/FQ05CRCHIEZY2F6.SQUARE.jpg http://cdn.instructables.com/FQ0/5CRC/HIEZY2F6/FQ05CRCHIEZY2F6.SMALL.jpg ehamilton-smith A few years ago I had the misfortune of losing the stand for my 32" Sharp LCD TV. It was while I had the TV mounted on the wall of my apartment, and kept the stand in the TV box, stored in my apartment building's storage room for safe-keeping—or so I thought. When I eventually moved into another ap...
By: ehamilton-smith

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Thu, 27 Jun 2013 15:12:15 PDT
ECG Simulator http://www.instructables.com/id/ECG-Simulator/
ECG Simulator - More DIY How To Projects]]> http://cdn.instructables.com/FXW/HJPB/HCV928UE/FXWHJPBHCV928UE.SQUARE2.jpg http://cdn.instructables.com/FXW/HJPB/HCV928UE/FXWHJPBHCV928UE.SQUARE.jpg http://cdn.instructables.com/FXW/HJPB/HCV928UE/FXWHJPBHCV928UE.SMALL.jpg lynchzilla This instructable describes in detail the steps required to create an Arduino-based ECG simulator. An ECG simulator replicates the cardiac waveform that can be measured by attaching three electrodes (RA, LA, RL) to the patient's chest. This ECG signal is only a few millivolts in amplitude. The finis...
By: lynchzilla

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Sat, 2 Mar 2013 10:04:46 PST
Reverse polarity protection for your circuit, without the diode voltage drop. http://www.instructables.com/id/Reverse-polarity-protection-for-your-circuit-with/
Reverse polarity protection for your circuit, without the diode voltage drop. - More DIY How To Projects]]> http://cdn.instructables.com/FCG/BL3C/H4AGIRJL/FCGBL3CH4AGIRJL.SQUARE2.jpg http://cdn.instructables.com/FCG/BL3C/H4AGIRJL/FCGBL3CH4AGIRJL.SQUARE.jpg http://cdn.instructables.com/FCG/BL3C/H4AGIRJL/FCGBL3CH4AGIRJL.SMALL.jpg ccrome Ever blow up a circuit because you reversed the polarity of a battery?  Or got one of those pesky center-negative AC power bricks?  Or even carefully connected your circuit to a bench supply, and still got the leads reversed? Well, I have.  It can ruin your day.   The easiest way to protect your s...
By: ccrome

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Tue, 10 Jul 2012 08:32:28 PDT