Instructables: exploring - technology - battery - popular http://www.instructables.com Sat, 19 Apr 2014 21:07:43 PDT BLOX v1.01 Rebuild Your Ryobi ONE+ Battery Pack http://www.instructables.com/id/Rebuild-Your-Ryobi-ONE-Battery-Pack/
Rebuild Your Ryobi ONE+ Battery Pack - More DIY How To Projects]]> http://cdn.instructables.com/FKY/KUXC/HU54MH0U/FKYKUXCHU54MH0U.SQUARE2.jpg http://cdn.instructables.com/FKY/KUXC/HU54MH0U/FKYKUXCHU54MH0U.SQUARE.jpg http://cdn.instructables.com/FKY/KUXC/HU54MH0U/FKYKUXCHU54MH0U.SMALL.jpg Marsh I've had my Ryobi ONE+ system for over five years now and the batteries are shot. Let's see what it takes to rebuild one. Tools Needed ScrewdriverWire cutterSoldering ironSolder Take It Apart Remove six screws from the bottom. Pull the black and orange sections apart. Identify The Cells Rem...
By: Marsh

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Fri, 18 Apr 2014 07:46:43 PDT
Augment Your Reality With The iTorch raspberry pi flashlight projector http://www.instructables.com/id/iTorch-raspberry-pi-flashlight-projector/
Augment Your Reality With The iTorch raspberry pi flashlight projector - More DIY How To Projects]]> http://cdn.instructables.com/F52/K12J/HTZY4C3F/F52K12JHTZY4C3F.SQUARE2.jpg http://cdn.instructables.com/F52/K12J/HTZY4C3F/F52K12JHTZY4C3F.SQUARE.jpg http://cdn.instructables.com/F52/K12J/HTZY4C3F/F52K12JHTZY4C3F.SMALL.jpg MrTravisHiggins   Post by ITorch Media Sharing. https://www.facebook.com/photo.php?v=292394047593097 iTorch Media Sharing Created By: Travis Higgins This Instructable is for a prototype homemade projector that can be illuminated by any decent LED flashlight/floodlight. http://youtu.be/pyYBpXNyQuo Th...
By: MrTravisHiggins

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Mon, 14 Apr 2014 18:19:17 PDT
How to Replace Old Computer Batteries http://www.instructables.com/id/How-to-Replace-Old-Computer-Batteries/
How to Replace Old Computer Batteries - More DIY How To Projects]]> http://cdn.instructables.com/F61/BR66/HU1RW9MP/F61BR66HU1RW9MP.SQUARE2.jpg http://cdn.instructables.com/F61/BR66/HU1RW9MP/F61BR66HU1RW9MP.SQUARE.jpg http://cdn.instructables.com/F61/BR66/HU1RW9MP/F61BR66HU1RW9MP.SMALL.jpg Chuck Brown 14 Tried of replacing your batteries every 2 years for you laptop? Now you can change your batteries in your laptop so you will not have to spend $100 on a new battery Start Disconnect the battery from your laptop. There will be 2 tabs on each side of the battery, just slide them to the side and pul...
By: Chuck Brown 14

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Wed, 16 Apr 2014 11:00:11 PDT
Make A Cheap Lithium Battery Pack http://www.instructables.com/id/Make-A-Cheap-Lithium-Battery-Pack/
Make A Cheap Lithium Battery Pack - More DIY How To Projects]]> http://cdn.instructables.com/FWY/NR2T/HU0GLSFQ/FWYNR2THU0GLSFQ.SQUARE2.jpg http://cdn.instructables.com/FWY/NR2T/HU0GLSFQ/FWYNR2THU0GLSFQ.SQUARE.jpg http://cdn.instructables.com/FWY/NR2T/HU0GLSFQ/FWYNR2THU0GLSFQ.SMALL.jpg ASCAS With some few hacking, you can turn your old phone battery into a powerful Lithium battery pack. This is a great alternative for the expensive Lithium-Polymer battery pack. These things work well with Arduinos, DIY robots, speakers or any project that requires a high current power source. What'...
By: ASCAS

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Mon, 14 Apr 2014 20:55:27 PDT
ARDUINO SOLAR CHARGE CONTROLLER (PWM) http://www.instructables.com/id/ARDUINO-SOLAR-CHARGE-CONTROLLER-PWM/
ARDUINO SOLAR CHARGE CONTROLLER (PWM) - More DIY How To Projects]]> http://cdn.instructables.com/FHE/R6DY/HTS5BNMP/FHER6DYHTS5BNMP.SQUARE2.jpg http://cdn.instructables.com/FHE/R6DY/HTS5BNMP/FHER6DYHTS5BNMP.SQUARE.jpg http://cdn.instructables.com/FHE/R6DY/HTS5BNMP/FHER6DYHTS5BNMP.SMALL.jpg deba168 In my previous instructables I described the details of energy monitoring of a off grid solar system.I have also won the 123D circuits competition for that.You can see this ARDUINO ENERGY METER. Please vote for me..... In solar power system, charge controller is the heart of the system which was...
By: deba168

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Wed, 9 Apr 2014 01:49:18 PDT
Rechargeable Bike Light with automatic switch of energy source http://www.instructables.com/id/Intro-70/
Rechargeable Bike Light with automatic switch of energy source - More DIY How To Projects]]> http://cdn.instructables.com/FTH/JMIB/HTIWIRHF/FTHJMIBHTIWIRHF.SQUARE2.jpg http://cdn.instructables.com/FTH/JMIB/HTIWIRHF/FTHJMIBHTIWIRHF.SQUARE.jpg http://cdn.instructables.com/FTH/JMIB/HTIWIRHF/FTHJMIBHTIWIRHF.SMALL.jpg Bumsfallera First of all, excuse my non-native English and my lack of professional electrical engineering skills. I see this as a hobby and have no claim to be perfect. However, if you have some ideas on how to improve the setting don’t hesitate to write a comment ;-) I haven’t seen any similar Instructabl...
By: Bumsfallera

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Mon, 31 Mar 2014 17:20:32 PDT
Easy to Make - Mini Stun Gun http://www.instructables.com/id/Easy-to-Make-Mini-Stun-Gun/
Easy to Make - Mini Stun Gun - More DIY How To Projects]]> http://cdn.instructables.com/FFU/GLLB/GY18RBZB/FFUGLLBGY18RBZB.SQUARE2.jpg http://cdn.instructables.com/FFU/GLLB/GY18RBZB/FFUGLLBGY18RBZB.SQUARE.jpg http://cdn.instructables.com/FFU/GLLB/GY18RBZB/FFUGLLBGY18RBZB.SMALL.jpg lonesoulsurfer   Hi all, I've been wanting to make this project for some time and I have finallly been able to get my hands on the right type of gas lighter to pull apart! Now this thing won't knock you down but It will give you a good old shock - especially if you hack it and add a bit more power to it. Th...
By: lonesoulsurfer

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Tue, 31 Jan 2012 11:53:06 PST
9V Solar Battery Charger http://www.instructables.com/id/9V-Solar-Battery-Charger/
9V Solar Battery Charger - More DIY How To Projects]]> http://cdn.instructables.com/FZ5/XCCB/GM9QK18B/FZ5XCCBGM9QK18B.SQUARE2.jpg http://cdn.instructables.com/FZ5/XCCB/GM9QK18B/FZ5XCCBGM9QK18B.SQUARE.jpg http://cdn.instructables.com/FZ5/XCCB/GM9QK18B/FZ5XCCBGM9QK18B.SMALL.jpg JoshuaZimmerman Did you know that you can buy 9V rechargeable batteries?  You can, but they're rare in stores.  I recently bought some off ebay to use on projects and loved them.  Only downside is that I don't have a 9V battery charger and all the ones I found on ebay are quite expensive. Luckily I'm resourceful a...
By: JoshuaZimmerman

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Tue, 12 Apr 2011 21:28:14 PDT
Mini line tracer http://www.instructables.com/id/Mini-line-tracer/
Mini line tracer - More DIY How To Projects]]> http://cdn.instructables.com/FUU/FW9D/HSJAPV6E/FUUFW9DHSJAPV6E.SQUARE2.jpg http://cdn.instructables.com/FUU/FW9D/HSJAPV6E/FUUFW9DHSJAPV6E.SQUARE.jpg http://cdn.instructables.com/FUU/FW9D/HSJAPV6E/FUUFW9DHSJAPV6E.SMALL.jpg pinomelean This is the story of how i made my first robot, and the instructions to build one yourself. It's a simple line tracer, controlled by two op-amps. No microcontroller, no programming... simple analog circuitry. I tried to make it as small as possible, using SMD components and tiny motors. I'm...
By: pinomelean

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Sun, 23 Mar 2014 07:27:18 PDT
Industrial Electronics Case Speaker http://www.instructables.com/id/Industrial-Electronics-Case-Speaker/
Industrial Electronics Case Speaker - More DIY How To Projects]]> http://cdn.instructables.com/FAJ/UZKQ/HSVGDJMI/FAJUZKQHSVGDJMI.SQUARE2.jpg http://cdn.instructables.com/FAJ/UZKQ/HSVGDJMI/FAJUZKQHSVGDJMI.SQUARE.jpg http://cdn.instructables.com/FAJ/UZKQ/HSVGDJMI/FAJUZKQHSVGDJMI.SMALL.jpg RCS82 Are you in need of a good set of portable speakers? Are your current portable speakers missing a kick ass shoulder strap? Are ammo can speakers just not classy looking enough to take to your more fancy get togethers? Well you're in luck because you have found the Industrial Electronics Case Speaker....
By: RCS82

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Mon, 17 Mar 2014 18:35:01 PDT
The easiest symmetrical power supply http://www.instructables.com/id/The-easiest-symmetrical-power-supply/
The easiest symmetrical power supply - More DIY How To Projects]]> http://cdn.instructables.com/FX2/EGWJ/HSRZF2XE/FX2EGWJHSRZF2XE.SQUARE2.jpg http://cdn.instructables.com/FX2/EGWJ/HSRZF2XE/FX2EGWJHSRZF2XE.SQUARE.jpg http://cdn.instructables.com/FX2/EGWJ/HSRZF2XE/FX2EGWJHSRZF2XE.SMALL.jpg Szabolcs I show you how to make an easy symmetrical power supply for testing circuits where you need positive and negative voltage. like op amp circuits. For example, look at the 741 op amp. Part list: Two new 9V battery 9V battery clip OR another 9V battery (I will explain that later) Here is the "sche...
By: Szabolcs

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Sat, 15 Mar 2014 11:19:52 PDT
Smart mint the solar phone charger http://www.instructables.com/id/Smart-mint-the-solar-phone-charger/
Smart mint the solar phone charger - More DIY How To Projects]]> http://cdn.instructables.com/FYI/3JIV/HS3GV5PG/FYI3JIVHS3GV5PG.SQUARE2.jpg http://cdn.instructables.com/FYI/3JIV/HS3GV5PG/FYI3JIVHS3GV5PG.SQUARE.jpg http://cdn.instructables.com/FYI/3JIV/HS3GV5PG/FYI3JIVHS3GV5PG.SMALL.jpg tech savvy Hello everyone Techsavvy here ,   it been awhile since I posted anything , and I  Thought I owe it to my Awesome subscribers to post something I'v been working on ,  Thanks again guys for your support  ;-)  and fellow users  so to start off by saying a couple of things , well for starters I wante...
By: tech savvy

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Wed, 26 Feb 2014 21:59:47 PST
Dummy Monitor for Photo Shoots and Product Demos http://www.instructables.com/id/Dummy-Monitor-for-Photo-Shoots-and-Product-Demos/
Dummy Monitor for Photo Shoots and Product Demos - More DIY How To Projects]]> http://cdn.instructables.com/F29/YF1Y/H1426LYK/F29YF1YH1426LYK.SQUARE2.jpg http://cdn.instructables.com/F29/YF1Y/H1426LYK/F29YF1YH1426LYK.SQUARE.jpg http://cdn.instructables.com/F29/YF1Y/H1426LYK/F29YF1YH1426LYK.SMALL.jpg jackzylkin For my home business (usbtypewriter.com) I do a lot of product photography showing customized computer workstations.  But setting up a computer workstation for a photo shoot involves a lot of setup (since I have to move the entire workstation from my actual desk over to the photo set), and the ugly ...
By: jackzylkin

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Tue, 17 Apr 2012 11:31:03 PDT
How to check AA/AAA alkaline battery using a voltmeter http://www.instructables.com/id/How-to-check-AAAAA-alkaline-battery-voltage-using/ http://cdn.instructables.com/FNP/VG9V/H4AGJ02G/FNPVG9VH4AGJ02G.SQUARE2.jpg http://cdn.instructables.com/FNP/VG9V/H4AGJ02G/FNPVG9VH4AGJ02G.SQUARE.jpg http://cdn.instructables.com/FNP/VG9V/H4AGJ02G/FNPVG9VH4AGJ02G.SMALL.jpg msurguy We all run into a situation when batteries in our remotes, toys, keyboards/mice run out. If we don't know how to check a battery we might throw out a perfectly fine battery (especially when we have a pile of them somewhere in the drawer).   This electronics tip has to deal with checking common alka...
By: msurguy

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Wed, 11 Jul 2012 15:24:20 PDT
LED skateboard version 3! http://www.instructables.com/id/LED-skateboard-version-3/
LED skateboard version 3! - More DIY How To Projects]]> http://cdn.instructables.com/F5P/AT07/HQB80II2/F5PAT07HQB80II2.SQUARE2.jpg http://cdn.instructables.com/F5P/AT07/HQB80II2/F5PAT07HQB80II2.SQUARE.jpg http://cdn.instructables.com/F5P/AT07/HQB80II2/F5PAT07HQB80II2.SMALL.jpg out-of-the-box Thank you for viewing my instructable! As the title says this is my 3rd led skateboard! But this is actually the first one I am making a 'how to' for. My first led board was alright, It did have a few flaws and aside from just turning it on there wasn't much appeal to it. Yes it did look very nice r...
By: out-of-the-box

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Sat, 11 Jan 2014 14:36:00 PST
from battery to wall wart in 10 minutes (with no soldering) http://www.instructables.com/id/from-battery-to-wall-wart-in-10-minutes-with-no-so/
from battery to wall wart in 10 minutes (with no soldering) - More DIY How To Projects]]> http://cdn.instructables.com/FPQ/5M18/HQ3ZSTF8/FPQ5M18HQ3ZSTF8.SQUARE2.jpg http://cdn.instructables.com/FPQ/5M18/HQ3ZSTF8/FPQ5M18HQ3ZSTF8.SQUARE.jpg http://cdn.instructables.com/FPQ/5M18/HQ3ZSTF8/FPQ5M18HQ3ZSTF8.SMALL.jpg andrea biffi If you like electronic gadgets as I do, you constantly need to charge many batteries, since battery powered devices are still much common. But batteries pollute, disposal has a cost, batteries themselves are not cheap at all if you buy good quality ones. There is also another issue, many devices wor...
By: andrea biffi

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Tue, 7 Jan 2014 11:30:10 PST
Raspberry Pi Rain Box http://www.instructables.com/id/Raspberry-Pi-Rain-Box/
Raspberry Pi Rain Box - More DIY How To Projects]]> http://cdn.instructables.com/FP4/DRUR/HPYORXUW/FP4DRURHPYORXUW.SQUARE2.jpg http://cdn.instructables.com/FP4/DRUR/HPYORXUW/FP4DRURHPYORXUW.SQUARE.jpg http://cdn.instructables.com/FP4/DRUR/HPYORXUW/FP4DRURHPYORXUW.SMALL.jpg Adum24 I find the sound of rain really soothing, and wanted a device to just play rain sounds for me. I figured the Raspberry Pi would be perfect for this. So I wrote a Python script that selects a random number, and, based on the number, selects a rain sound to play. After that, I stuck it in a hobby proj...
By: Adum24

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Sun, 5 Jan 2014 19:30:31 PST
Crack Open a Kindle Touch http://www.instructables.com/id/Crack-Open-a-Kindle-Touch/
Crack Open a Kindle Touch - More DIY How To Projects]]> http://cdn.instructables.com/FOD/1WJC/HPN4LF8Z/FOD1WJCHPN4LF8Z.SQUARE2.jpg http://cdn.instructables.com/FOD/1WJC/HPN4LF8Z/FOD1WJCHPN4LF8Z.SQUARE.jpg http://cdn.instructables.com/FOD/1WJC/HPN4LF8Z/FOD1WJCHPN4LF8Z.SMALL.jpg Phil B This photo shows the back of a Kindle Touch. You may want to open a Kindle so you can change the battery yourself in minutes rather than waiting days for your Kindle to come back from a repair station. I had to open this one after it became water-logged in an accident. Fortunately, the electronics s...
By: Phil B

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Thu, 26 Dec 2013 06:48:19 PST
Easy LED Color Changing "Candle" http://www.instructables.com/id/Easy-LED-Color-Changing-Light/
Easy LED Color Changing "Candle" - More DIY How To Projects]]> http://cdn.instructables.com/FYL/MJZ5/HP71H2BW/FYLMJZ5HP71H2BW.SQUARE2.jpg http://cdn.instructables.com/FYL/MJZ5/HP71H2BW/FYLMJZ5HP71H2BW.SQUARE.jpg http://cdn.instructables.com/FYL/MJZ5/HP71H2BW/FYLMJZ5HP71H2BW.SMALL.jpg Cats Science Club This is a simple color changing light that is great for kids and adults. Looks beautiful in a dimly lit room, great for the holidays, and makes a pretty cool night light. Materials Glue Gun - We are using a low temperature glue gun. It hurts when the glue touches your skin but it does not burn y...
By: Cats Science Club

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Sat, 14 Dec 2013 08:41:26 PST
Ultra-bright Emergency Waterproof Torch DIY (Rechargeble) http://www.instructables.com/id/Ultra-bright-Waterproof-Torch-DIY-Rechargeble/
Ultra-bright Emergency Waterproof Torch DIY (Rechargeble) - More DIY How To Projects]]> http://cdn.instructables.com/FNO/VUUS/HP7AO7AC/FNOVUUSHP7AO7AC.SQUARE2.jpg http://cdn.instructables.com/FNO/VUUS/HP7AO7AC/FNOVUUSHP7AO7AC.SQUARE.jpg http://cdn.instructables.com/FNO/VUUS/HP7AO7AC/FNOVUUSHP7AO7AC.SMALL.jpg PrathameshJ This is an Ultra bright torch Which is maximum recycled. This can be used for camping,Halloween,pool lights,night light, camera flash light,blackouts etc. Gathering Materials 1] DC Socket (Recycled Parts) 2] BL-5C (Recycled Parts) 3] Switch (Recycled Parts) 4] 3W ultabright led (Recycled Parts...
By: PrathameshJ

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Sun, 15 Dec 2013 00:08:20 PST
$3.00 Altoids Charger (EASY BUILD) (CHEAP) http://www.instructables.com/id/300-Altoids-Charger-EASY-BUILD-CHEAP/
$3.00 Altoids Charger (EASY BUILD) (CHEAP) - More DIY How To Projects]]> http://cdn.instructables.com/F4H/O57K/HOUG0C9N/F4HO57KHOUG0C9N.SQUARE2.jpg http://cdn.instructables.com/F4H/O57K/HOUG0C9N/F4HO57KHOUG0C9N.SQUARE.jpg http://cdn.instructables.com/F4H/O57K/HOUG0C9N/F4HO57KHOUG0C9N.SMALL.jpg snow1434 I know your thinking i have seen hundreds of these but have you ever seen one so easy to build? LETS GET STARTED Things you will need : L78MO5CV Voltage Regulator http://www.taydaelectronics.com/ic-integrated-circuits/voltage-regulators/lm7805-l7805-7805-voltage-regulator-ic-5v-1-5a.html ...
By: snow1434

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Sun, 8 Dec 2013 21:48:07 PST
Get Lithium Metal from an Energizer Battery http://www.instructables.com/id/Get-Lithium-Metal-from-an-Energizer-Battery-1/ http://cdn.instructables.com/FW9/ZQAZ/FVW24KGG/FW9ZQAZFVW24KGG.SQUARE2.jpg http://cdn.instructables.com/FW9/ZQAZ/FVW24KGG/FW9ZQAZFVW24KGG.SQUARE.jpg http://cdn.instructables.com/FW9/ZQAZ/FVW24KGG/FW9ZQAZFVW24KGG.SMALL.jpg NurdRage We show you how to get Lithium Metal from an Energizer Ultimate Lithium battery.There are a great many types of lithium batteries and the particular chemistry of interest is "lithium iron disulfide" batteries which contain pure lithium metal and less toxic electrolyte than other batteries. Lithium i...
By: NurdRage

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Sun, 14 Jun 2009 15:57:11 PDT
Water Powered Flashlight http://www.instructables.com/id/Water-Powered-Flashlight/
Water Powered Flashlight - More DIY How To Projects]]> http://cdn.instructables.com/FJI/41I0/HNE44KP3/FJI41I0HNE44KP3.SQUARE2.jpg http://cdn.instructables.com/FJI/41I0/HNE44KP3/FJI41I0HNE44KP3.SQUARE.jpg http://cdn.instructables.com/FJI/41I0/HNE44KP3/FJI41I0HNE44KP3.SMALL.jpg ASCAS Batteries are too mainstream, let's make Water Powered ones! The DIY flashlight never runs out of batteries, water is all around us and will never run out. One of today's causes of pollution is the improper disposal of batteries containing heavy metals such as lead and mercury. The answer, using wat...
By: ASCAS

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Wed, 30 Oct 2013 14:04:24 PDT
Fun circuits with conductive paint http://www.instructables.com/id/Fun-circuits-with-conductive-paint/
Fun circuits with conductive paint - More DIY How To Projects]]> http://cdn.instructables.com/FG9/HKKD/HN82O66Z/FG9HKKDHN82O66Z.SQUARE2.jpg http://cdn.instructables.com/FG9/HKKD/HN82O66Z/FG9HKKDHN82O66Z.SQUARE.jpg http://cdn.instructables.com/FG9/HKKD/HN82O66Z/FG9HKKDHN82O66Z.SMALL.jpg Paulbacca This instructable will show you how to make simple fun electronic circuits. However my objective here is mostly to demonstrate how kids can have fun making and learning about electronics at the same time. I will be using a new product from a company called Bare Conductive that have recently release...
By: Paulbacca

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Tue, 29 Oct 2013 11:03:24 PDT
A Good Use for an Old Phone Charger http://www.instructables.com/id/A-Good-Use-for-an-Old-Phone-Charger/
A Good Use for an Old Phone Charger - More DIY How To Projects]]> http://cdn.instructables.com/FTK/65S4/HMWVZAGH/FTK65S4HMWVZAGH.SQUARE2.jpg http://cdn.instructables.com/FTK/65S4/HMWVZAGH/FTK65S4HMWVZAGH.SQUARE.jpg http://cdn.instructables.com/FTK/65S4/HMWVZAGH/FTK65S4HMWVZAGH.SMALL.jpg Phil B Indoor/outdoor thermometers are handy, but they consume batteries. This is especially true of the outdoor sender unit, which is usually powered by AAA batteries. I decided to power the outdoor transmitter with an old phone charger, but I will need to drop the voltage about two volts to match the req...
By: Phil B

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Sat, 19 Oct 2013 10:35:23 PDT
Homemade battery monitor using AVR http://www.instructables.com/id/Homemade-battery-monitor-using-AVR/
Homemade battery monitor using AVR - More DIY How To Projects]]> http://cdn.instructables.com/FQS/5VHH/HLR2Q5MB/FQS5VHHHLR2Q5MB.SQUARE2.jpg http://cdn.instructables.com/FQS/5VHH/HLR2Q5MB/FQS5VHHHLR2Q5MB.SQUARE.jpg http://cdn.instructables.com/FQS/5VHH/HLR2Q5MB/FQS5VHHHLR2Q5MB.SMALL.jpg arick Guys, I want to share my experiment with voltage divider, ADC and AVR Homemade battery monitor using AVR It's pretty simple the sensor are only two resistors and zener diode with capasitor, I don't buy them, I've found it in my box. We can use it for monitoring our car battery voltage. The part I...
By: arick

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Thu, 19 Sep 2013 07:04:38 PDT
Wired control robot manual http://www.instructables.com/id/Wired-control-robot-manual-4x4/
Wired control robot manual - More DIY How To Projects]]> http://cdn.instructables.com/FM1/2L0S/H19RQR7Q/FM12L0SH19RQR7Q.SQUARE2.jpg http://cdn.instructables.com/FM1/2L0S/H19RQR7Q/FM12L0SH19RQR7Q.SQUARE.jpg http://cdn.instructables.com/FM1/2L0S/H19RQR7Q/FM12L0SH19RQR7Q.SMALL.jpg Avadhut.Deshmukh Simple Wired  Robot Manual tethered by the control wired,wire 4x2 or 4x4 ! dc gear motor 300rpm-1000rpm ...racing 4x4,robot mod,robot wars fight !If you want to make a robot at your home, let me tell you this. There are basically five types of robots they are:- 1.LEVEL ONE ROBOT (wired robot with 2 ...
By: Avadhut.Deshmukh

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Sat, 21 Apr 2012 07:59:21 PDT
hack that battery pack! ( also, a small lesson in series, parallel, and series-parallel) http://www.instructables.com/id/hack-that-battery-pack-also-a-small-lesson-in-/
hack that battery pack! ( also, a small lesson in series, parallel, and series-parallel) - More DIY How To Projects]]> http://cdn.instructables.com/FGP/73W5/HK6XDCHV/FGP73W5HK6XDCHV.SQUARE2.jpg http://cdn.instructables.com/FGP/73W5/HK6XDCHV/FGP73W5HK6XDCHV.SQUARE.jpg http://cdn.instructables.com/FGP/73W5/HK6XDCHV/FGP73W5HK6XDCHV.SMALL.jpg out-of-the-box (be sure to check out the last step for some updated info and a how to for this method using 4 batteries, using four would increase the life span. i had to use three for the sake of saving space.) hack that battery pack!! we have all seen those 4 double a battery holders sold at radioshack, online,...
By: out-of-the-box

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Sat, 17 Aug 2013 15:19:07 PDT
From a Coffeemaker to a Travel Alarm Clock http://www.instructables.com/id/From-a-Coffeemaker-to-a-Travel-Alarm-Clock/
From a Coffeemaker to a Travel Alarm Clock - More DIY How To Projects]]> http://cdn.instructables.com/F72/464O/HKDFFU3T/F72464OHKDFFU3T.SQUARE2.jpg http://cdn.instructables.com/F72/464O/HKDFFU3T/F72464OHKDFFU3T.SQUARE.jpg http://cdn.instructables.com/F72/464O/HKDFFU3T/F72464OHKDFFU3T.SMALL.jpg Josehf Murchison I am a big believer in a greener way of life so I reduce reuse recycle and repurpose, to this end I gather many things put out for the garbage, the computers I get my wife likes to rebuild and gives them away to people that can’t afford a computer. The other things I get to repair repurpose or strip...
By: Josehf Murchison

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Thu, 15 Aug 2013 02:05:27 PDT
Make an inexpensive Lithium-Ion Battery Pack http://www.instructables.com/id/Make-an-inexpensive-Lithium-Ion-Battery-Pack/
Make an inexpensive Lithium-Ion Battery Pack - More DIY How To Projects]]> http://cdn.instructables.com/F3X/Q3KF/GTQVP3VM/F3XQ3KFGTQVP3VM.SQUARE2.jpg http://cdn.instructables.com/F3X/Q3KF/GTQVP3VM/F3XQ3KFGTQVP3VM.SQUARE.jpg http://cdn.instructables.com/F3X/Q3KF/GTQVP3VM/F3XQ3KFGTQVP3VM.SMALL.jpg Noblenutria I started this project out of a desire to keep my phone working on long bike tours. I needed a lightweight, inexpensive battery to put on my touring bike. Unfortunately, the lithium battery I needed costs 200 dollars new. Add a charger and powersupply and that's another 100 dollars. Batteryspace is ...
By: Noblenutria

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Fri, 21 Oct 2011 14:03:59 PDT
Microbial Fuel Cell Of Science!!! http://www.instructables.com/id/Microbial-Fuel-Cell-Of-Science/
Microbial Fuel Cell Of Science!!! - More DIY How To Projects]]> http://cdn.instructables.com/FGJ/9QIM/HKDFFU2S/FGJ9QIMHKDFFU2S.SQUARE2.jpg http://cdn.instructables.com/FGJ/9QIM/HKDFFU2S/FGJ9QIMHKDFFU2S.SQUARE.jpg http://cdn.instructables.com/FGJ/9QIM/HKDFFU2S/FGJ9QIMHKDFFU2S.SMALL.jpg drdan152 Fuel cell that harvests electrons from the bacteria in mud! And ELECTRons mean ELECTRicity....you get me? The cell also makes a great habitat for a beta fish... The bacteria decompose the fish poop adding to the cell's fuel and keeping the water clean! Get Some MUCK! "MUCK" is actually the corr...
By: drdan152

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Fri, 9 Aug 2013 13:55:17 PDT
THE Simplest iPod / iPad / iPhone charger circuit http://www.instructables.com/id/THE-Simplest-iPod-iPad-iPhone-charger-circuit/
THE Simplest iPod / iPad / iPhone charger circuit - More DIY How To Projects]]> http://cdn.instructables.com/F0M/HVTY/HJZ85IHM/F0MHVTYHJZ85IHM.SQUARE2.jpg http://cdn.instructables.com/F0M/HVTY/HJZ85IHM/F0MHVTYHJZ85IHM.SQUARE.jpg http://cdn.instructables.com/F0M/HVTY/HJZ85IHM/F0MHVTYHJZ85IHM.SMALL.jpg SuperTech-IT Ok, so you have some parts hanging around, and maybe tried to make something to charge up your iPhone or iPod/iPad but nothing seems to work right. You keep getting that message saying that Charging Is Not Supported With This Device - or some such similar message. Well, this is my super simple solut...
By: SuperTech-IT

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Wed, 7 Aug 2013 07:30:45 PDT
Film Canister Battery http://www.instructables.com/id/Film-Canister-Battery/
Film Canister Battery - More DIY How To Projects]]> http://cdn.instructables.com/FIN/EZF1/HJKBUG33/FINEZF1HJKBUG33.SQUARE2.jpg http://cdn.instructables.com/FIN/EZF1/HJKBUG33/FINEZF1HJKBUG33.SQUARE.jpg http://cdn.instructables.com/FIN/EZF1/HJKBUG33/FINEZF1HJKBUG33.SMALL.jpg Cats Science Club Making a battery from film canisters, used wire, vinegar, and nails. Check us out at catsscience.com and on Facebook Please vote for us. Materials Film canisters Vinegar Safety goggles Nails (zinc coated) Wire Cutters Alligator clips with wire Scrap copper wire Red LED No film canisters? You ...
By: Cats Science Club

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Sat, 27 Jul 2013 11:11:45 PDT
DIY portable LED strobe http://www.instructables.com/id/DIY-portable-LED-strobe/
DIY portable LED strobe - More DIY How To Projects]]> http://cdn.instructables.com/F6C/67LG/HJB0JB8E/F6C67LGHJB0JB8E.SQUARE2.jpg http://cdn.instructables.com/F6C/67LG/HJB0JB8E/F6C67LGHJB0JB8E.SQUARE.jpg http://cdn.instructables.com/F6C/67LG/HJB0JB8E/F6C67LGHJB0JB8E.SMALL.jpg DOT. I and my friends like to have fun in summer. We like to fool around with music when we are camping. To make those parties more likely to professional ones I have made portable 9V LED strobe. For my surprise it really gives a big effect. I hope you will like it! Lights! Camera! Action! Too...
By: DOT.

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Mon, 22 Jul 2013 14:49:56 PDT
Powering an Arduino without wires http://www.instructables.com/id/Powering-an-Arduino-without-wires/
Powering an Arduino without wires - More DIY How To Projects]]> http://cdn.instructables.com/F3M/X4MR/HJAHP5D3/F3MX4MRHJAHP5D3.SQUARE2.jpg http://cdn.instructables.com/F3M/X4MR/HJAHP5D3/F3MX4MRHJAHP5D3.SQUARE.jpg http://cdn.instructables.com/F3M/X4MR/HJAHP5D3/F3MX4MRHJAHP5D3.SMALL.jpg theargha Wanna ever thought of powering an Arduino without wires? Check it out. Get these stuff You need these for this. 1.Arduino(must) 2.Battery Holder (6v) 3.4 x AA batteries Anyone try it with a 9v battery. If works, please post a comment. Powering Put in the batteries in the holder and hold i...
By: theargha

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Sun, 21 Jul 2013 04:49:37 PDT
Mini Tesla Coil http://www.instructables.com/id/Mini-Tesla-Coil-1/
Mini Tesla Coil - More DIY How To Projects]]> http://cdn.instructables.com/FU6/OYNQ/HJ39PQJJ/FU6OYNQHJ39PQJJ.SQUARE2.jpg http://cdn.instructables.com/FU6/OYNQ/HJ39PQJJ/FU6OYNQHJ39PQJJ.SQUARE.jpg http://cdn.instructables.com/FU6/OYNQ/HJ39PQJJ/FU6OYNQHJ39PQJJ.SMALL.gif techno guy A few months ago I made a small desktop Tesla Coil that was powered by a 12 volt supply. When I presented it at school, everyone acted like it was something that could only be seen in a movie. So I decided to document it here to show 'iblers that you don't need very much power to get the coil to wor...
By: techno guy

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Sun, 14 Jul 2013 23:30:39 PDT
Upgrade your switch to LED http://www.instructables.com/id/Upgrade-your-switch-to-LED/
Upgrade your switch to LED - More DIY How To Projects]]> http://cdn.instructables.com/FDM/K0AA/HIYWGWRQ/FDMK0AAHIYWGWRQ.SQUARE2.jpg http://cdn.instructables.com/FDM/K0AA/HIYWGWRQ/FDMK0AAHIYWGWRQ.SQUARE.jpg http://cdn.instructables.com/FDM/K0AA/HIYWGWRQ/FDMK0AAHIYWGWRQ.SMALL.jpg kondzio29 Light up your switch with LED! Replace the lightbulb inside with LED and use it with 3V  circuits! There is also a plenty of benefits of using LED in the switch. Go and check first step! Parts you'll need to convert your switch and why do you want to do it. Why do you want to use LED instead of ...
By: kondzio29

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Fri, 12 Jul 2013 11:19:04 PDT
Make an Ultra Simple High Voltage Generator http://www.instructables.com/id/Make-an-Ultra-Simple-High-Voltage-Generator/
Make an Ultra Simple High Voltage Generator - More DIY How To Projects]]> http://cdn.instructables.com/FM2/89Y0/FL5R9YMA/FM289Y0FL5R9YMA.SQUARE2.jpg http://cdn.instructables.com/FM2/89Y0/FL5R9YMA/FM289Y0FL5R9YMA.SQUARE.jpg http://cdn.instructables.com/FM2/89Y0/FL5R9YMA/FM289Y0FL5R9YMA.SMALL.jpg Plasmana Have you ever wanted to build a high voltage devices to make sparks like Tesla Coils, Marx Generator, and so on.. But find it too compacted or difficult to build?Well, this instructable is for you! It can make create a few kilovolts of static-like sparks, and best of all... You can make it with only...
By: Plasmana

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Tue, 16 Sep 2008 07:07:58 PDT
Pocket-Size Power Supply http://www.instructables.com/id/Pocket-Size-Power-Supply/
Pocket-Size Power Supply - More DIY How To Projects]]> http://cdn.instructables.com/FIM/M2EW/HHJOC54P/FIMM2EWHHJOC54P.SQUARE2.jpg http://cdn.instructables.com/FIM/M2EW/HHJOC54P/FIMM2EWHHJOC54P.SQUARE.jpg http://cdn.instructables.com/FIM/M2EW/HHJOC54P/FIMM2EWHHJOC54P.SMALL.jpg DIY Hacks and How Tos I am a big fan of garage sales, flea markets, and thrift stores. They are great places to find used parts and materials for your next project. But one problem that I often run into is not being able to test battery powered electronics to see if they work. Because there are so many different comb...
By: DIY Hacks and How Tos

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Mon, 1 Jul 2013 12:27:53 PDT
GUIDE TO LED PROJECTS http://www.instructables.com/id/GUIDE-TO-LED-PROJECTS/
GUIDE TO LED PROJECTS - More DIY How To Projects]]> http://cdn.instructables.com/F35/CVOT/HIGFJVDC/F35CVOTHIGFJVDC.SQUARE2.jpg http://cdn.instructables.com/F35/CVOT/HIGFJVDC/F35CVOTHIGFJVDC.SQUARE.jpg http://cdn.instructables.com/F35/CVOT/HIGFJVDC/F35CVOTHIGFJVDC.SMALL.jpg Dipankar INTRO. I had to do this project for many of my young friends who are interested in LED’s but do not know how to go about it. I also had the same problem but was fortunate enough to get HELP from my friends at www.Instructables.com. This is not about any calculation or study but a set of proven ru...
By: Dipankar

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Sun, 30 Jun 2013 06:06:25 PDT
MAMEFrame - The battery-powered MAME system http://www.instructables.com/id/MAMEFrame-The-battery-powered-MAME-system/
MAMEFrame - The battery-powered MAME system - More DIY How To Projects]]> http://cdn.instructables.com/FDO/PDNQ/HI3TJVY4/FDOPDNQHI3TJVY4.SQUARE2.jpg http://cdn.instructables.com/FDO/PDNQ/HI3TJVY4/FDOPDNQHI3TJVY4.SQUARE.jpg http://cdn.instructables.com/FDO/PDNQ/HI3TJVY4/FDOPDNQHI3TJVY4.SMALL.jpg NEIN I love MAME .  What I don't love is moving MAME cabinets.  This project outlines the steps involved with building a MAME cabinet in a controller box, allowing it to be moved or stored.  In this project we will build a MAME controller that is self-contained, and battery powered.  I've broken it into ...
By: NEIN

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Sun, 23 Jun 2013 22:26:27 PDT
Ammo box speakers http://www.instructables.com/id/Ammo-box-speakers-2/
Ammo box speakers - More DIY How To Projects]]> http://cdn.instructables.com/F2R/MF3F/HH2VU60G/F2RMF3FHH2VU60G.SQUARE2.jpg http://cdn.instructables.com/F2R/MF3F/HH2VU60G/F2RMF3FHH2VU60G.SQUARE.jpg http://cdn.instructables.com/F2R/MF3F/HH2VU60G/F2RMF3FHH2VU60G.SMALL.jpg WillERoberts Hi all! As the title suggests I'm doing this instructible on ammo box speakers!  I came across this instructible  http://www.instructables.com/id/Ammo-Box-Speakers-1/ a good few months ago now, and this gave me all the ideas/concepts/designs to give me courage to build my own. I suggest you check ou...
By: WillERoberts

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Tue, 28 May 2013 15:13:52 PDT
water battery http://www.instructables.com/id/water-battery/
water battery - More DIY How To Projects]]> http://cdn.instructables.com/FGG/T6BN/HHS9KT66/FGGT6BNHHS9KT66.SQUARE2.jpg http://cdn.instructables.com/FGG/T6BN/HHS9KT66/FGGT6BNHHS9KT66.SQUARE.jpg http://cdn.instructables.com/FGG/T6BN/HHS9KT66/FGGT6BNHHS9KT66.SMALL.jpg Roy02 the idea is to create a battery that works on water. The concept behind it is to make a galvanic cell that works on either a saltbridge or a sourbridge. In this case it's a saltbridge, but you could try using plants or wine (sourbridge) to create the same effect. -things you need: .copper sulphate...
By: Roy02

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Thu, 13 Jun 2013 01:47:00 PDT
how to revive a first generation Olympic 447 portable transistor radio http://www.instructables.com/id/how-to-revive-a-first-generation-Olympic-447-trans/
how to revive a first generation Olympic 447 portable transistor radio - More DIY How To Projects]]> http://cdn.instructables.com/FYR/MPT6/HHMHQRIQ/FYRMPT6HHMHQRIQ.SQUARE2.jpg http://cdn.instructables.com/FYR/MPT6/HHMHQRIQ/FYRMPT6HHMHQRIQ.SQUARE.jpg http://cdn.instructables.com/FYR/MPT6/HHMHQRIQ/FYRMPT6HHMHQRIQ.SMALL.jpg ke4mcl **this instructable assumes that you have basic electronics knowledge, you can solder, and you have the ability to use basic hand tools.** in this instructable we'll be covering the basic rebuild of an early portable transistor radio. these big transistor radios where called "lunchbox radios" and w...
By: ke4mcl

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Fri, 7 Jun 2013 07:53:28 PDT
How to make a external cell phone battery for under $10 http://www.instructables.com/id/How-to-make-a-external-cell-phone-battery-for-unde/
How to make a external cell phone battery for under $10 - More DIY How To Projects]]> http://cdn.instructables.com/F5V/KVY6/HHJOIVHI/F5VKVY6HHJOIVHI.SQUARE2.jpg http://cdn.instructables.com/F5V/KVY6/HHJOIVHI/F5VKVY6HHJOIVHI.SQUARE.jpg http://cdn.instructables.com/F5V/KVY6/HHJOIVHI/F5VKVY6HHJOIVHI.SMALL.jpg The Dark Lord The intro will just explain one thing: why I decided to make this. When I go on long trips, I like to be prepared. I also like to listen to music (when awake on that trip.). Recently, I got a Android smartphone, and like all smartphones; the battery won't last more than eight hours. This summer (20...
By: The Dark Lord

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Wed, 5 Jun 2013 17:26:21 PDT
The tiny Audio Amplifier http://www.instructables.com/id/The-tiny-Audio-Amplifier/
The tiny Audio Amplifier - More DIY How To Projects]]> http://cdn.instructables.com/FZ1/G8GY/H21CGJFN/FZ1G8GYH21CGJFN.SQUARE2.jpg http://cdn.instructables.com/FZ1/G8GY/H21CGJFN/FZ1G8GYH21CGJFN.SQUARE.jpg http://cdn.instructables.com/FZ1/G8GY/H21CGJFN/FZ1G8GYH21CGJFN.SMALL.jpg frapedia A tiny, cheap Amplifier where it can be incorporated almost anywhere. Connect your MP3,iPod,Laptop,Cell Phone... and you got your self a DIY portable stereo. It can be powered using batteries and be helpful in many cases. It is capable to drive a small 8 Ohm speaker or even a combination of a small ...
By: frapedia

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Tue, 15 May 2012 12:56:11 PDT
Ice Cube-Unread Email Counter http://www.instructables.com/id/Ice-Cube-Unread-Email-Counter/
Ice Cube-Unread Email Counter - More DIY How To Projects]]> http://cdn.instructables.com/F6F/5NLC/HHJO9INS/F6F5NLCHHJO9INS.SQUARE2.jpg http://cdn.instructables.com/F6F/5NLC/HHJO9INS/F6F5NLCHHJO9INS.SQUARE.jpg http://cdn.instructables.com/F6F/5NLC/HHJO9INS/F6F5NLCHHJO9INS.SMALL.jpg trumpkin Digging into the vault of never fully documented projects, I found this and decided to make an Instructable on it. Doing this mostly by memory, I might have missed some things. Let me know if you see any errors. This is a project that displays how many unread email messages you have. It also display...
By: trumpkin

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Thu, 6 Jun 2013 10:09:44 PDT
Paper Electronics: Conductive Paints, Inks, and More http://www.instructables.com/id/Paper-Electronics-Conductive-Paints-Inks-and-Mo/
Paper Electronics: Conductive Paints, Inks, and More - More DIY How To Projects]]> http://cdn.instructables.com/FO0/ZB42/HHI4UKII/FO0ZB42HHI4UKII.SQUARE2.jpg http://cdn.instructables.com/FO0/ZB42/HHI4UKII/FO0ZB42HHI4UKII.SQUARE.jpg http://cdn.instructables.com/FO0/ZB42/HHI4UKII/FO0ZB42HHI4UKII.SMALL.jpg icecats      This Instructable is all about the amazing technology of paper electronics and conductive materials. Instead of using stubborn wires and your rusty soldering skills to painstakingly connect components, why not use paint and glue? This tutorial will share various recipes to create your very own ...
By: icecats

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Tue, 4 Jun 2013 12:07:03 PDT
Pocket Stereo Amplifier http://www.instructables.com/id/Pocket-Stereo-Amplifier/
Pocket Stereo Amplifier - More DIY How To Projects]]> http://cdn.instructables.com/FQK/7EC8/HH2VKZ61/FQK7EC8HH2VKZ61.SQUARE2.jpg http://cdn.instructables.com/FQK/7EC8/HH2VKZ61/FQK7EC8HH2VKZ61.SQUARE.jpg http://cdn.instructables.com/FQK/7EC8/HH2VKZ61/FQK7EC8HH2VKZ61.SMALL.jpg drac5290 a while a go i came across this instructable: Rechargable pocket sized amplifier and loved the idea of a pocket sized audio amp but was disappointed but its lack of capability, namely only using mono amplification and only having 1 output option  hence the idea for the stereo amplifier was born doin...
By: drac5290

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Tue, 4 Jun 2013 03:38:31 PDT
Convert Battery Powered Electronics to Run on AC http://www.instructables.com/id/Convert-Battery-Powered-Electronics-to-Run-on-AC/
Convert Battery Powered Electronics to Run on AC - More DIY How To Projects]]> http://cdn.instructables.com/FS4/HHK1/HH2VMT5V/FS4HHK1HH2VMT5V.SQUARE2.jpg http://cdn.instructables.com/FS4/HHK1/HH2VMT5V/FS4HHK1HH2VMT5V.SQUARE.jpg http://cdn.instructables.com/FS4/HHK1/HH2VMT5V/FS4HHK1HH2VMT5V.SMALL.jpg DIY Hacks and How Tos We use batteries to power a lot of our electronics. But there are some battery powered devices that don't necessarily need to be portable all the time. One example is my son's battery powered swing. It can be moved around but it usually stays in the same general area. In cases like these it migh...
By: DIY Hacks and How Tos

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Mon, 3 Jun 2013 13:57:08 PDT