http://www.instructables.com Tue, 21 May 2013 13:26:38 PDT BLOX v1.01 http://www.instructables.com/id/ArduinoPID-FAN-Controller/ http://www.instructables.com/files/deriv/FCQ/RIM3/HGU2JI5D/FCQRIM3HGU2JI5D.SQUARE2.jpg http://www.instructables.com/files/deriv/FCQ/RIM3/HGU2JI5D/FCQRIM3HGU2JI5D.SQUARE.jpg http://www.instructables.com/files/deriv/FCQ/RIM3/HGU2JI5D/FCQRIM3HGU2JI5D.SMALL.jpg BIGDOG1971 These videos are a complement to my other instructable about Arduino_PID. Now we have a FAN speed controller. I hope you enjoy this project. Cheers. Instructions about the project: The DC motor driver: The reflective optical sensor: Fan control in operatio...
By: BIGDOG1971

Continue Reading »]]> Sun, 19 May 2013 11:46:24 PDT http://www.instructables.com/id/Heart-In-Your-Hands-LED-Box/
Heart In Your Hands LED Box - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FD2/YMO8/HD4VF80R/FD2YMO8HD4VF80R.SQUARE2.jpg http://www.instructables.com/files/deriv/FD2/YMO8/HD4VF80R/FD2YMO8HD4VF80R.SQUARE.jpg http://www.instructables.com/files/deriv/FD2/YMO8/HD4VF80R/FD2YMO8HD4VF80R.SMALL.jpg Kurt E. Clothier I typically try to think outside of the box when it comes to gifts for my wife. Valentine's Days is one of those holidays that we have sort of been forced into buying things out of obligation, but rather than buy her more of what she already has, I decided to make something instead. A few nights bef...
By: Kurt E. Clothier

Continue Reading »]]> Thu, 14 Feb 2013 23:27:05 PST http://www.instructables.com/id/Identifying-the-correct-leg-of-a-transistor-or-MOS/ http://www.instructables.com/files/deriv/FVH/77E1/H5Y9VIOB/FVH77E1H5Y9VIOB.SQUARE2.jpg http://www.instructables.com/files/deriv/FVH/77E1/H5Y9VIOB/FVH77E1H5Y9VIOB.SQUARE.jpg http://www.instructables.com/files/deriv/FVH/77E1/H5Y9VIOB/FVH77E1H5Y9VIOB.SMALL.jpg knex super maker Sometimes it is not obvious which leg of a transistor does what, obviously you cant just plug in the transistor and take a guess at which legs is the Base, Collector or Emitter it would just damage the transistor.  So a quick method I use for identifying transistor legs is to lookup the datasheet, ...
By: knex super maker

Continue Reading »]]> Sat, 18 Aug 2012 10:41:35 PDT http://www.instructables.com/id/Sensor-circuits-with-a-MOSFET/ http://www.instructables.com/files/deriv/FLE/BGZJ/H5Y9VBJB/FLEBGZJH5Y9VBJB.SQUARE2.jpg http://www.instructables.com/files/deriv/FLE/BGZJ/H5Y9VBJB/FLEBGZJH5Y9VBJB.SQUARE.jpg http://www.instructables.com/files/deriv/FLE/BGZJ/H5Y9VBJB/FLEBGZJH5Y9VBJB.SMALL.jpg knex super maker You can create a variety of sensing circuits based on voltage divider as the input to the Gate of the MOSFET, this input signal is then amplified by the MOSFET allowing you to interface many devices and even an entirely different circuit.  MOSFET - Metal Oxide Semiconductor Field Effect Transistor ...
By: knex super maker

Continue Reading »]]> Fri, 17 Aug 2012 08:08:45 PDT http://www.instructables.com/id/Soldering-an-SMT-MOSFET-Driver-with-a-hotplate/
Soldering an SMT MOSFET Driver with a hotplate - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F7K/DLMG/H5JVOT4V/F7KDLMGH5JVOT4V.SQUARE2.jpg http://www.instructables.com/files/deriv/F7K/DLMG/H5JVOT4V/F7KDLMGH5JVOT4V.SQUARE.jpg http://www.instructables.com/files/deriv/F7K/DLMG/H5JVOT4V/F7KDLMGH5JVOT4V.SMALL.jpg djhamer Soldering SMD components isn't as hard as you might think. In fact it's easy. If you follow this instructables you'll soon see just what great results you can obtain at home using just a hotplate. It's not just being able to make small circuit boards that makes SMT soldering so good it's also a nic...
By: djhamer

Continue Reading »]]> Sun, 12 Aug 2012 03:40:52 PDT http://www.instructables.com/id/LED-beating-heart-that-changes-based-on-distance-b/
Install and run - 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 ghostbust555 Install the arduino and leds into the box and superglue the heart into place. Then plug it in and enjoy.
By: ghostbust555

Continue Reading »]]> Wed, 8 Aug 2012 21:20:57 PDT http://www.instructables.com/id/Multi-color-Light-Painter-Touch-Sensitive/
Multi-Color Light Painter (Touch Sensitive) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FIN/RLJH/H1Y0EH16/FINRLJHH1Y0EH16.SQUARE2.jpg http://www.instructables.com/files/deriv/FIN/RLJH/H1Y0EH16/FINRLJHH1Y0EH16.SQUARE.jpg http://www.instructables.com/files/deriv/FIN/RLJH/H1Y0EH16/FINRLJHH1Y0EH16.SMALL.jpg hanlin_y Light painting is a photographic technique used to create special effects at slow shutter speeds. A flashlight is usually used to "paint" the images. In this Instructable, I will show you how to build an all in one light painter with touch switches. The touch switches are very simple to buil...
By: hanlin_y

Continue Reading »]]> Fri, 1 Jun 2012 18:01:58 PDT http://www.instructables.com/id/Poormans-Buck/
Simple Buck LED Driver with PWM Input - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FMG/5YET/H1YONIU3/FMG5YETH1YONIU3.SQUARE2.jpg http://www.instructables.com/files/deriv/FMG/5YET/H1YONIU3/FMG5YETH1YONIU3.SQUARE.jpg http://www.instructables.com/files/deriv/FMG/5YET/H1YONIU3/FMG5YETH1YONIU3.SMALL.jpg ledartist High-power LEDs over 1W are now quite inexpensive. I'm sure many of you are incorporating LEDs as light sources in your projects. However I realize that the finding and configuring the power supply is still not as simple as it can be; commercially available LED drivers are convenient, but often over...
By: ledartist

Continue Reading »]]> Sun, 20 May 2012 10:26:30 PDT http://www.instructables.com/id/How-Electronic-Switches-Work-For-Noobs-Relays-and/
How Electronic Switches Work For Noobs: Relays and Transistors - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FU7/QIO8/GZKG3QNF/FU7QIO8GZKG3QNF.SQUARE2.jpg http://www.instructables.com/files/deriv/FU7/QIO8/GZKG3QNF/FU7QIO8GZKG3QNF.SQUARE.jpg http://www.instructables.com/files/deriv/FU7/QIO8/GZKG3QNF/FU7QIO8GZKG3QNF.SMALL.jpg jpoopdog Hello, This Instructable is targeted at those just stepping into the world of electronics. In this guide I will explain how the two main types of electronic switches work, these being relays, and transistors. Firstly, what is an electronic switch? An electronic switch is essentially just a switch...
By: jpoopdog

Continue Reading »]]> Wed, 7 Mar 2012 14:59:24 PST http://www.instructables.com/id/The-ultimate-PWM-driver-for-many-applications/
Efficient PWM driver (flyback or other applications) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FSQ/E9XL/GW88L9KS/FSQE9XLGW88L9KS.SQUARE2.jpg http://www.instructables.com/files/deriv/FSQ/E9XL/GW88L9KS/FSQE9XLGW88L9KS.SQUARE.jpg http://www.instructables.com/files/deriv/FSQ/E9XL/GW88L9KS/FSQE9XLGW88L9KS.SMALL.jpg Electorials This PWM driver has lots of features, is easy to control and doesn't require many components to build! Features: • adjustable frequency (from 0 to 50kHz, or even higher) • adjustable duty-cycle, pulse width (from 0% to 100%) • MOSFET controlled • relatively low heat production due to fast PWM switc...
By: Electorials

Continue Reading »]]> Tue, 1 Nov 2011 09:48:32 PDT http://www.instructables.com/id/Fun-with-transistors/ http://www.instructables.com/files/deriv/FKS/EKG7/GU09UO3I/FKSEKG7GU09UO3I.SQUARE2.jpg http://www.instructables.com/files/deriv/FKS/EKG7/GU09UO3I/FKSEKG7GU09UO3I.SQUARE.jpg http://www.instructables.com/files/deriv/FKS/EKG7/GU09UO3I/FKSEKG7GU09UO3I.SMALL.jpg Geek07Boy Playing with Transistors lets you in on what makes just about everything in our world work. Transistors are easy with a few basic steps. In most cases you need to use Biasing Resistors to control when they turn on and off. Biasing resistors also lower the current needed to switch a transistor on an...
By: Geek07Boy

Continue Reading »]]> Thu, 27 Oct 2011 14:28:09 PDT http://www.instructables.com/id/555-timer-based-plasma-speaker/ http://www.instructables.com/files/deriv/FT8/PT1I/GYW6GNYR/FT8PT1IGYW6GNYR.SQUARE2.jpg http://www.instructables.com/files/deriv/FT8/PT1I/GYW6GNYR/FT8PT1IGYW6GNYR.SQUARE.jpg http://www.instructables.com/files/deriv/FT8/PT1I/GYW6GNYR/FT8PT1IGYW6GNYR.SMALL.jpg Alex1M6 Plasma speaker using a flyback transformer. It uses an SG3525 chip to switch two MOSFET's in a half-bridge fashion. You can make one using a simple 555 timer circuit here http://www.instructables.com/id/Audio-modulated-flyback-transformer-driver/
By: Alex1M6

Continue Reading »]]> Thu, 15 Sep 2011 20:57:41 PDT http://www.instructables.com/id/DIY-SRAM-The-RAM-in-your-Microcontroller/
DIY SRAM - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FMZ/WWS7/GQZJO19U/FMZWWS7GQZJO19U.SQUARE2.jpg http://www.instructables.com/files/deriv/FMZ/WWS7/GQZJO19U/FMZWWS7GQZJO19U.SQUARE.jpg http://www.instructables.com/files/deriv/FMZ/WWS7/GQZJO19U/FMZWWS7GQZJO19U.SMALL.jpg Teslaling Static Random-Access Memory.  What is it? SRAM is a type of memory that will store information, but lose it when power is disconnected, which is why it is RAM.  It is called static RAM because it doesn't need to be refreshed, unlike Dynamic RAM (DRAM) which has to be refreshed every few millisecond...
By: Teslaling

Continue Reading »]]> Sat, 13 Aug 2011 18:41:56 PDT http://www.instructables.com/id/Aurora-9x18-RGB-LED-art/
Aurora 9x18 RGB LED art - More DIY How To Projects]]> http://cdn.instructables.com/FU1/O041/GOW3YC37/FU1O041GOW3YC37.SQUARE2.jpg http://cdn.instructables.com/FU1/O041/GOW3YC37/FU1O041GOW3YC37.SQUARE.jpg http://cdn.instructables.com/FU1/O041/GOW3YC37/FU1O041GOW3YC37.SMALL.jpg ledartist *** Check out my blog for updated version of this project and more! *** My obsession of LEDs has led me to this. Aurora 9x18 is a thing of beauty (if I can say so myself) - has 162 RGB-LEDs in a circular configuration. The color of each circle is controlled by a microcontroller using a twisted form...
By: ledartist

Continue Reading »]]> Tue, 14 Jun 2011 20:49:14 PDT http://www.instructables.com/id/Using-a-wireless-doorbell-to-turn-on-a-small-DC-mo-1/ http://www.instructables.com/files/deriv/FX1/0D23/GMSXHB2K/FX10D23GMSXHB2K.SQUARE2.jpg http://www.instructables.com/files/deriv/FX1/0D23/GMSXHB2K/FX10D23GMSXHB2K.SQUARE.jpg http://www.instructables.com/files/deriv/FX1/0D23/GMSXHB2K/FX10D23GMSXHB2K.SMALL.jpg duboisvb After asking how to do this, I got several good answers and have gotten it to work.  BUT, I am new to this and I expect I may have overlooked something or did not do this in the best possible way. I will list what I did but I am hoping I get some good comments  about alternative ways or steps I s...
By: duboisvb

Continue Reading »]]> Fri, 22 Apr 2011 15:28:45 PDT http://www.instructables.com/id/Laser-Transceiver/
Laser Transceiver (laser data link) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FFG/LNZY/GMJT4IXM/FFGLNZYGMJT4IXM.SQUARE2.jpg http://www.instructables.com/files/deriv/FFG/LNZY/GMJT4IXM/FFGLNZYGMJT4IXM.SQUARE.jpg http://www.instructables.com/files/deriv/FFG/LNZY/GMJT4IXM/FFGLNZYGMJT4IXM.SMALL.jpg furri How to connect two computers (networks or any other electronic devices) with a laser data link. Most used to connect lan networks between buildings this is a cheap and secure way to send information without broadcasting as RF or wifi links. This project was developed in my course of robotics for h...
By: furri

Continue Reading »]]> Sat, 16 Apr 2011 18:39:33 PDT http://www.instructables.com/id/Semi-Conducting-A-Guide/
Semi Conducting - A Guide - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FKY/URBK/GLL4V86Y/FKYURBKGLL4V86Y.SQUARE2.jpg http://www.instructables.com/files/deriv/FKY/URBK/GLL4V86Y/FKYURBKGLL4V86Y.SQUARE.jpg http://www.instructables.com/files/deriv/FKY/URBK/GLL4V86Y/FKYURBKGLL4V86Y.SMALL.jpg Inducktion WORD OF WARNING, THIS IS LONG. --------------------------------------------------------------------------------------------------------------------------------- Anyway, Electronics, as stated before by many of my comrades around the globe, have all become the most important things in our daily live...
By: Inducktion

Continue Reading »]]> Wed, 13 Apr 2011 14:01:06 PDT http://www.instructables.com/id/Easy-to-build-Headphone-amplifier-using-Mosfets/
Easy to build Headphone amplifier using Mosfets - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FA9/H9UL/GJQEBPD0/FA9H9ULGJQEBPD0.SQUARE2.jpg http://www.instructables.com/files/deriv/FA9/H9UL/GJQEBPD0/FA9H9ULGJQEBPD0.SQUARE.jpg http://www.instructables.com/files/deriv/FA9/H9UL/GJQEBPD0/FA9H9ULGJQEBPD0.SMALL.jpg pyrohaz This instructable is about how to build a simple headphone amplifier using easy to obtain components :) The amplifier is based around a standard N-Channel Mosfet (IRF740 in my case) and is quick and easy to build with quite acceptable results. I scavenged the heatsink for this off the voltage regul...
By: pyrohaz

Continue Reading »]]> Sun, 20 Feb 2011 09:34:42 PST http://www.instructables.com/id/Quick-and-easy-step-up-transformer-driver/
Quick and easy step up transformer driver - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F26/LTHR/GIWZLHN9/F26LTHRGIWZLHN9.SQUARE2.jpg http://www.instructables.com/files/deriv/F26/LTHR/GIWZLHN9/F26LTHRGIWZLHN9.SQUARE.jpg http://www.instructables.com/files/deriv/F26/LTHR/GIWZLHN9/F26LTHRGIWZLHN9.SMALL.jpg sdobbie This will show you how to set up a power transformer driver which can be used to power flyback transformers and various other transformers. The driver is the speed controller out of a cordless drill. Collect all that you need. You will need: The speed controller out of a cordless drill. A small ...
By: sdobbie

Continue Reading »]]> Fri, 14 Jan 2011 12:41:15 PST http://www.instructables.com/id/DIY-CMOS-RAM-Memory/
DIY CMOS RAM Memory - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F2O/MNTU/GGBZINLP/F2OMNTUGGBZINLP.SQUARE2.jpg http://www.instructables.com/files/deriv/F2O/MNTU/GGBZINLP/F2OMNTUGGBZINLP.SQUARE.jpg http://www.instructables.com/files/deriv/F2O/MNTU/GGBZINLP/F2OMNTUGGBZINLP.SMALL.jpg Teslaling If you have seen my other instructable on ram memory, you probably know that I used transistors to make a register. In this instructable I will show you how to make a register using CMOS gates. If you haven't seen my other instructable, check it out http://www.instructables.com/id/DIY-RAM-Memor...
By: Teslaling

Continue Reading »]]> Sat, 13 Nov 2010 18:29:48 PST http://www.instructables.com/id/A-bidirectional-logic-level-converter-for-I2C/
A bidirectional logic level converter (for I2C) - More DIY How To Projects]]> http://www.instructables.com/files/deriv/F05/KXSE/GGBZPCHE/F05KXSEGGBZPCHE.SQUARE2.jpg http://www.instructables.com/files/deriv/F05/KXSE/GGBZPCHE/F05KXSEGGBZPCHE.SQUARE.jpg http://www.instructables.com/files/deriv/F05/KXSE/GGBZPCHE/F05KXSEGGBZPCHE.SMALL.jpg janw When working with sensors and microcontroller or arduino's, you'll need a level converter as a lot of sensors are designed for 3,3V and most microcontrollers will be 5V. I know that they can be bought cheaply at sparkfun and others but when you only want to buy one converter you might pay more for ...
By: janw

Continue Reading »]]> Sat, 13 Nov 2010 10:54:33 PST http://www.instructables.com/id/ZVS-Flyback-Driver-Video/ http://www.instructables.com/files/deriv/FXR/WO1C/G9NH8XA5/FXRWO1CG9NH8XA5.SQUARE2.jpg http://www.instructables.com/files/deriv/FXR/WO1C/G9NH8XA5/FXRWO1CG9NH8XA5.SQUARE.jpg http://www.instructables.com/files/deriv/FXR/WO1C/G9NH8XA5/FXRWO1CG9NH8XA5.SMALL.jpg Plasmana It has been a long time since I have posted anything, lol. I have recently got more sealed lead acid batteries so I can now power my ZVS flyback driver up to 36 volts! I will try find some time to make an instructable about making one of those beast, at the moment, I can show the vid of it working....
By: Plasmana

Continue Reading »]]> Sat, 29 May 2010 15:40:40 PDT http://www.instructables.com/id/Audio-Modulated-Solid-State-Tesla-Coil/ http://www.instructables.com/files/deriv/FRG/EBFI/GP7II2NO/FRGEBFIGP7II2NO.SQUARE2.jpg http://www.instructables.com/files/deriv/FRG/EBFI/GP7II2NO/FRGEBFIGP7II2NO.SQUARE.jpg http://www.instructables.com/files/deriv/FRG/EBFI/GP7II2NO/FRGEBFIGP7II2NO.SMALL.jpg Xellers Here is a video of my new SSTC, this test is only at 24 volts, and its already over an inch long, hopefully, it will be much more impressive at full power. Here is a video of the coil running in audio modulation mode at 90 volts (this was an earlier test, so the arcs became longer later on) F...
By: Xellers

Continue Reading »]]> Mon, 11 Jan 2010 15:30:26 PST http://www.instructables.com/id/Heatsinks-for-power-transistors-and-regulators/
Heatsinks for power transistors and regulators! - More DIY How To Projects]]> http://www.instructables.com/files/deriv/FYS/ETIW/G33OYHPM/FYSETIWG33OYHPM.SQUARE2.jpg http://www.instructables.com/files/deriv/FYS/ETIW/G33OYHPM/FYSETIWG33OYHPM.SQUARE.jpg http://www.instructables.com/files/deriv/FYS/ETIW/G33OYHPM/FYSETIWG33OYHPM.SMALL.jpg Jodex You are probaply and hopefully going to learn how to make some kind of heatsink for your regulators or transistors for pretty sure free. And if not, hopefully even getting some idea, of course you can modify my idea. I think that it is pretty stupid when people says like "this is my first instructab...
By: Jodex

Continue Reading »]]> Mon, 14 Dec 2009 10:07:00 PST