Instructables: exploring - technology - battery - featured http://www.instructables.com Sun, 7 Feb 2016 09:47:36 PST BLOX v1.01 Convert Your Old Laptop Battery Into a Power Bank http://www.instructables.com/id/Convert-Your-Old-Laptop-Battery-Into-a-Power-Bank/
Convert Your Old Laptop Battery Into a Power Bank - More DIY How To Projects]]> http://cdn.instructables.com/FQK/IONE/IK1HRDC4/FQKIONEIK1HRDC4.SQUARE2.jpg http://cdn.instructables.com/FQK/IONE/IK1HRDC4/FQKIONEIK1HRDC4.SQUARE.jpg http://cdn.instructables.com/FQK/IONE/IK1HRDC4/FQKIONEIK1HRDC4.SMALL.jpg GreatScottLab In this project I will show you how to convert a battery from an old laptop into a power bank which can charge an ordinary phone 4 to 5 times with a single charge. Let's get started! Watch the video! The video gives you a basic overview which steps are necessary to create your own power bank. But...
By: GreatScottLab

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Sun, 31 Jan 2016 07:58:22 PST
2.0 Portable Bluetooth Boombox http://www.instructables.com/id/20-Portable-Bluetooth-Boombox/
2.0 Portable Bluetooth Boombox - More DIY How To Projects]]> http://cdn.instructables.com/F16/7RJU/IJSXA0SW/F167RJUIJSXA0SW.SQUARE2.jpg http://cdn.instructables.com/F16/7RJU/IJSXA0SW/F167RJUIJSXA0SW.SQUARE.jpg http://cdn.instructables.com/F16/7RJU/IJSXA0SW/F167RJUIJSXA0SW.SMALL.jpg thappasahil This instructable is on building a 2.0 portable bluetooth Boombox.For this build I sourced parts locally as well as from China. In this build I've given two bass port at the bottom. The speaker is powered by a 12V 7Ah Sealed Lead Acid Battery and is having Bluetooth V2.0 + EDR connectivity. This mig...
By: thappasahil

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Mon, 25 Jan 2016 02:57:17 PST
Change a watch battery without tools http://www.instructables.com/id/Change-a-watch-battery-with-more-than-simple-tools/
Change a watch battery without tools - More DIY How To Projects]]> http://cdn.instructables.com/FRP/7CI0/GE7LBHRS/FRP7CI0GE7LBHRS.SQUARE2.jpg http://cdn.instructables.com/FRP/7CI0/GE7LBHRS/FRP7CI0GE7LBHRS.SQUARE.jpg http://cdn.instructables.com/FRP/7CI0/GE7LBHRS/FRP7CI0GE7LBHRS.SMALL.jpg WYN soldier For this instructable, I inspired myself of all those watches battery changing tutorials videos because they all have a tool in comon : The screwdriver for watches. I thought that it was useless to buy that tool.All you need is :-a watch with a back you can unscrew ( like in the picture )-a pair of ...
By: WYN soldier

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Sat, 18 Sep 2010 12:30:54 PDT
IoT Weather Station With Adafruit HUZZAH ESP8266 (ESP-12E) And Adafruit IO http://www.instructables.com/id/IoT-Weather-Station-With-ESP8266/
IoT Weather Station With Adafruit HUZZAH ESP8266 (ESP-12E) And Adafruit IO - More DIY How To Projects]]> http://cdn.instructables.com/F69/JBWS/IJYUIHBT/F69JBWSIJYUIHBT.SQUARE2.jpg http://cdn.instructables.com/F69/JBWS/IJYUIHBT/F69JBWSIJYUIHBT.SQUARE.jpg http://cdn.instructables.com/F69/JBWS/IJYUIHBT/F69JBWSIJYUIHBT.SMALL.jpg Konstantin Dimitrov Hello, everyone ! Time ago I saw this Weather Station by Aleator777 and I got inspired to make my own weather station. I saw that the Intel Edison is too expensive in my country, so I decided to find something cheaper, and I found that the Adafruit HUZZAH is a lot cheaper. So I ordered one.When the ...
By: Konstantin Dimitrov

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Sun, 24 Jan 2016 07:55:29 PST
Lasercut Portable Speakers http://www.instructables.com/id/Lasercut-Portable-Speakers/
Lasercut Portable Speakers - More DIY How To Projects]]> http://cdn.instructables.com/FY4/O0WH/IJN9GZHY/FY4O0WHIJN9GZHY.SQUARE2.jpg http://cdn.instructables.com/FY4/O0WH/IJN9GZHY/FY4O0WHIJN9GZHY.SQUARE.jpg http://cdn.instructables.com/FY4/O0WH/IJN9GZHY/FY4O0WHIJN9GZHY.SMALL.jpg thappasahil This instructable is on building a Lasercut 2.0 portable speaker. I've spent a considerable amount of time on looking at different types of amplifiers, drivers, power sources, enclosures. As this was one of my initial build, I used a standard 2.0 speaker system for computers. The speakers were USB p...
By: thappasahil

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Thu, 21 Jan 2016 11:44:20 PST
Wooden Portable Speaker http://www.instructables.com/id/Wood-Portable-Speaker/
Wooden Portable Speaker - More DIY How To Projects]]> http://cdn.instructables.com/FID/M8P6/IJKEQFJH/FIDM8P6IJKEQFJH.SQUARE2.jpg http://cdn.instructables.com/FID/M8P6/IJKEQFJH/FIDM8P6IJKEQFJH.SQUARE.jpg http://cdn.instructables.com/FID/M8P6/IJKEQFJH/FIDM8P6IJKEQFJH.SMALL.jpg pokulan Hello!A few months ago I have created this beautiful portable speaker :)It has only 3W (if you want more you can use other amp) but this is enough powerful to "lake play".At the end you can see, improved version with high-freq speaker on the top and handle.Let's see it :)(Sorry for the poor photos, ...
By: pokulan

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Tue, 19 Jan 2016 08:41:00 PST
Simple RC Stick Plane Build(CAD Model Included) http://www.instructables.com/id/Simple-RC-Stick-Plane-BuildCAD-Model-Included/
Simple RC Stick Plane Build(CAD Model Included) - More DIY How To Projects]]> http://cdn.instructables.com/FFV/DAOQ/IJEMO2JJ/FFVDAOQIJEMO2JJ.SQUARE2.jpg http://cdn.instructables.com/FFV/DAOQ/IJEMO2JJ/FFVDAOQIJEMO2JJ.SQUARE.jpg http://cdn.instructables.com/FFV/DAOQ/IJEMO2JJ/FFVDAOQIJEMO2JJ.SMALL.jpg Dhipak Bala This is a simple RC plane designed around a 1/2''x1/2'' dowel for the fuselage. The advantage to such a design is the ease of modification -the electronics and any desired sensors can be placed almost anywhere along the fuselage. The plane is propelled via a brushless motor spinning a 10'' propeller...
By: Dhipak Bala

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Thu, 14 Jan 2016 14:16:53 PST
Handmade LED Airplane http://www.instructables.com/id/Handmade-LED-Airplane/
Handmade LED Airplane - More DIY How To Projects]]> http://cdn.instructables.com/F03/TGHV/IJACIQEC/F03TGHVIJACIQEC.SQUARE2.jpg http://cdn.instructables.com/F03/TGHV/IJACIQEC/F03TGHVIJACIQEC.SQUARE.jpg http://cdn.instructables.com/F03/TGHV/IJACIQEC/F03TGHVIJACIQEC.SMALL.jpg osdoyi I built this plane as a gift for the one who I love You can follow the video as well :) Don't forget to subscribe my channel on youtubeIt is amazing in the night. Do you want to built one ? Materials needed: 9 White LEDs 3V (transparent shell & circular shape) 21 Red LEDs 3V (red shell & not circu...
By: osdoyi

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Mon, 11 Jan 2016 21:31:05 PST
Completely Scratch Built Tricopter http://www.instructables.com/id/Completely-Scratch-Built-Tricopter/
Completely Scratch Built Tricopter - More DIY How To Projects]]> http://cdn.instructables.com/FVQ/DCFM/IJ8Z2WVE/FVQDCFMIJ8Z2WVE.SQUARE2.jpg http://cdn.instructables.com/FVQ/DCFM/IJ8Z2WVE/FVQDCFMIJ8Z2WVE.SQUARE.jpg http://cdn.instructables.com/FVQ/DCFM/IJ8Z2WVE/FVQDCFMIJ8Z2WVE.SMALL.jpg robobot3112 Hello all. Hope you know about Drones aka multirotors.Now most of us know that these flying machines are quiet cossstttlyyyyy.So i decided to find ways to make em cheap and fast and efficient.So heres the equation. Less motors = Less ESC = Less price.Unfortunately less motors mean MOVING PARTS.quadc...
By: robobot3112

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Sun, 10 Jan 2016 23:10:11 PST
Magnet Car http://www.instructables.com/id/Magnet-Car/
Magnet Car - More DIY How To Projects]]> http://cdn.instructables.com/F7M/2H3U/IJ1RT6UD/F7M2H3UIJ1RT6UD.SQUARE2.jpg http://cdn.instructables.com/F7M/2H3U/IJ1RT6UD/F7M2H3UIJ1RT6UD.SQUARE.jpg http://cdn.instructables.com/F7M/2H3U/IJ1RT6UD/F7M2H3UIJ1RT6UD.SMALL.jpg KJMagnetics Here is a quick, easy way to create a self-propelled car using simple household items! All it takes is some magnets, a AA battery, and some aluminum foil! Find the Supplies As previously mentioned, you only need three things to complete the project-- a few magnets, a AA battery, and aluminum foi...
By: KJMagnetics

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Wed, 6 Jan 2016 10:59:01 PST
MASLOW: an Open WiFi Detector with ESP8266 http://www.instructables.com/id/MASLOW-an-Open-WiFi-Detector-With-ESP8266/
MASLOW: an Open WiFi Detector with ESP8266 - More DIY How To Projects]]> http://cdn.instructables.com/FVX/49ZS/IJ1PJV9D/FVX49ZSIJ1PJV9D.SQUARE2.jpg http://cdn.instructables.com/FVX/49ZS/IJ1PJV9D/FVX49ZSIJ1PJV9D.SQUARE.jpg http://cdn.instructables.com/FVX/49ZS/IJ1PJV9D/FVX49ZSIJ1PJV9D.SMALL.jpg sabas1080 English/EspañolHola amigos en esta ocasión le voy a enseñar como hacer un detector de redes abiertas con el modulo WiFi ESP8266, este detector nos notifica cuando una red WiFi cerca de nosotros esta abierta o no tiene cifrado WEP (que casi es lo mismo que abierta), cuando el ESP8266 detecte uno de e...
By: sabas1080

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Tue, 5 Jan 2016 16:36:49 PST
Battery float charger http://www.instructables.com/id/Battery-Float-Charger/
Battery float charger - More DIY How To Projects]]> http://cdn.instructables.com/F8P/8YH1/IIUKCKP3/F8P8YH1IIUKCKP3.SQUARE2.jpg http://cdn.instructables.com/F8P/8YH1/IIUKCKP3/F8P8YH1IIUKCKP3.SQUARE.jpg http://cdn.instructables.com/F8P/8YH1/IIUKCKP3/F8P8YH1IIUKCKP3.SMALL.jpg Nobilis Ensuring your vehicle batteries are always in good condition is important.Preserving of our environment is/should be mandatory.This project supports both purpose. It recycles an outdated feature phone wall adapter to create a lead-acid battery float charger. The wall adapter gets a new life and the ...
By: Nobilis

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Thu, 31 Dec 2015 14:56:13 PST
Auto Power Off: save batteries http://www.instructables.com/id/Auto-Power-Off-Save-Batteries/
Auto Power Off: save batteries - More DIY How To Projects]]> http://cdn.instructables.com/FP6/CE04/IIOWQM48/FP6CE04IIOWQM48.SQUARE2.jpg http://cdn.instructables.com/FP6/CE04/IIOWQM48/FP6CE04IIOWQM48.SQUARE.jpg http://cdn.instructables.com/FP6/CE04/IIOWQM48/FP6CE04IIOWQM48.SMALL.jpg gab3iel This little circuit allows your microcontroller to cut the power off. To turn the circuit on press the button.To turn it off drive the "to microcontroller" signal high using whichever condition you like. For battery applications you might want to have a voltage reading on another pin (a voltage divi...
By: gab3iel

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Sun, 27 Dec 2015 18:01:08 PST
Text Message in a Bottle http://www.instructables.com/id/Text-Message-in-a-Bottle/
Text Message in a Bottle - More DIY How To Projects]]> http://cdn.instructables.com/F2W/A4VW/IIDJBVLJ/F2WA4VWIIDJBVLJ.SQUARE2.jpg http://cdn.instructables.com/F2W/A4VW/IIDJBVLJ/F2WA4VWIIDJBVLJ.SQUARE.jpg http://cdn.instructables.com/F2W/A4VW/IIDJBVLJ/F2WA4VWIIDJBVLJ.SMALL.jpg ossum What is ItHow often have you sent off a message in a bottle, only to realise, as it floats out of sight, that you regret the contents of your message? Well, with the Text Message in a Bottle (TM) that will no longer be a problem! You can update your message at any time, just by sending a text. Fanta...
By: ossum

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Sun, 20 Dec 2015 05:25:36 PST
Linkit One Battery Tester http://www.instructables.com/id/Linkit-One-Battery-Tester-2/
Linkit One Battery Tester - More DIY How To Projects]]> http://cdn.instructables.com/FL3/ELB7/IIAZB0TK/FL3ELB7IIAZB0TK.SQUARE2.jpg http://cdn.instructables.com/FL3/ELB7/IIAZB0TK/FL3ELB7IIAZB0TK.SQUARE.jpg http://cdn.instructables.com/FL3/ELB7/IIAZB0TK/FL3ELB7IIAZB0TK.SMALL.jpg ThisIsSteve A few months ago I created an instructable in which I should how to create a battery tester using the Linkit One board, in this instuctable I'm going to show you how to make a battery tester using the Linit one. A battery tester works by checking the voltage of 1.5V cells or even 3V button cells and...
By: ThisIsSteve

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Fri, 18 Dec 2015 02:24:38 PST
Hand Mimicking Robot http://www.instructables.com/id/Hand-Mimicking-Robot/
Hand Mimicking Robot - More DIY How To Projects]]> http://cdn.instructables.com/FIL/0UQH/II6BZ3OH/FIL0UQHII6BZ3OH.SQUARE2.jpg http://cdn.instructables.com/FIL/0UQH/II6BZ3OH/FIL0UQHII6BZ3OH.SQUARE.jpg http://cdn.instructables.com/FIL/0UQH/II6BZ3OH/FIL0UQHII6BZ3OH.SMALL.jpg hrithikbansal70 Hello people, this is the in depth review of a hand mimicking robot I made. The idea came to me when I wanted a robot that could literally do some tasks for me and so I used the human hand as reference for my design and made a frugal prototype to test out how it works and possibly take care of all i...
By: hrithikbansal70

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Mon, 14 Dec 2015 11:54:04 PST
Nikon MB-D10/MB-D12 External Battery Pack http://www.instructables.com/id/Nikon-MB-D10MB-D12-External-Battery-Pack/
Nikon MB-D10/MB-D12 External Battery Pack - More DIY How To Projects]]> http://cdn.instructables.com/FTN/2JXM/II0OCR55/FTN2JXMII0OCR55.SQUARE2.jpg http://cdn.instructables.com/FTN/2JXM/II0OCR55/FTN2JXMII0OCR55.SQUARE.jpg http://cdn.instructables.com/FTN/2JXM/II0OCR55/FTN2JXMII0OCR55.SMALL.jpg AWPphotography This whole project started when I decided to pursue the "Holy Grail" of time-lapse photography. For those of you that don't know what the Holy Grail time-lapse is--In short, its a time-lapse from sunset through the night to sunrise. Sounds awesome right? After doing a ton of research on the actua...
By: AWPphotography

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Sat, 12 Dec 2015 06:52:13 PST
AMPLFY - The Coolest DIY Speaker Ever! http://www.instructables.com/id/AMPLFY-the-Coolest-DIY-Speaker-Ever/
AMPLFY - The Coolest DIY Speaker Ever! - More DIY How To Projects]]> http://cdn.instructables.com/FBC/ZWOW/II21QJ1P/FBCZWOWII21QJ1P.SQUARE2.jpg http://cdn.instructables.com/FBC/ZWOW/II21QJ1P/FBCZWOWII21QJ1P.SQUARE.jpg http://cdn.instructables.com/FBC/ZWOW/II21QJ1P/FBCZWOWII21QJ1P.SMALL.jpg Baclair Do you want to know how to build the best portable speaker, which looks great and sounds even better? This portable speaker will out perform most portable Bluetooth speakers on the market. This speaker is perfect for fishing, camping, the beach, worksites, parties and especially festivals.This Instr...
By: Baclair

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Sat, 12 Dec 2015 06:04:15 PST
LinkIt One - 3d Printed Case http://www.instructables.com/id/LinkIt-One-3d-Printed-Case/
LinkIt One - 3d Printed Case - More DIY How To Projects]]> http://cdn.instructables.com/FMK/EW4X/II1LIUBM/FMKEW4XII1LIUBM.SQUARE2.jpg http://cdn.instructables.com/FMK/EW4X/II1LIUBM/FMKEW4XII1LIUBM.SQUARE.jpg http://cdn.instructables.com/FMK/EW4X/II1LIUBM/FMKEW4XII1LIUBM.SMALL.jpg HUKBMBEAR Hi this Instructables is designed to give you a way to protect your LinkIt ONE while you are using it.Let me first say that their are a couple of enclosures available, one of which is on thingiverse, however I was unable to find a model of the board itself anywhere. Saying this in sure someone will ...
By: HUKBMBEAR

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Fri, 11 Dec 2015 10:48:56 PST
Solar Power the LinkIt One (With Tracking) http://www.instructables.com/id/Solar-Power-the-LinkIt-One-With-Tracking/
Solar Power the LinkIt One (With Tracking) - More DIY How To Projects]]> http://cdn.instructables.com/FDK/LOUJ/IHXTH5R0/FDKLOUJIHXTH5R0.SQUARE2.jpg http://cdn.instructables.com/FDK/LOUJ/IHXTH5R0/FDKLOUJIHXTH5R0.SQUARE.jpg http://cdn.instructables.com/FDK/LOUJ/IHXTH5R0/FDKLOUJIHXTH5R0.SMALL.jpg ossum The Mediatek LinkIt One has a whole bunch of cool features, along with the on-board GPS and GPRS, the included battery and charger really made my day, supplying power to a project if often a real nuisance, so it is great to literally have "batteries included". These features make it ideal as a remot...
By: ossum

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Wed, 9 Dec 2015 06:05:03 PST
arduino bluetooth tank http://www.instructables.com/id/arduino-bluetooth-tank/
arduino bluetooth tank - More DIY How To Projects]]> http://cdn.instructables.com/FBE/BR1J/IHTH69ZE/FBEBR1JIHTH69ZE.SQUARE2.jpg http://cdn.instructables.com/FBE/BR1J/IHTH69ZE/FBEBR1JIHTH69ZE.SQUARE.jpg http://cdn.instructables.com/FBE/BR1J/IHTH69ZE/FBEBR1JIHTH69ZE.SMALL.jpg jordan the tamago i has build an arduino bluetooth tank to learn how to programming or learn how bluetooth communication works between android smart phone and HC-06 or HC-05. The robotic arm are attached for user to control and capture something that assisted by ping sensor. The coding has included 3 type of auto pil...
By: jordan the tamago

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Sun, 6 Dec 2015 07:54:44 PST
DIY Bottle Cap Flashlight http://www.instructables.com/id/DIY-Bottle-Cap-Flashlight/
DIY Bottle Cap Flashlight - More DIY How To Projects]]> http://cdn.instructables.com/F4M/PQA4/IHDTB8W4/F4MPQA4IHDTB8W4.SQUARE2.jpg http://cdn.instructables.com/F4M/PQA4/IHDTB8W4/F4MPQA4IHDTB8W4.SQUARE.jpg http://cdn.instructables.com/F4M/PQA4/IHDTB8W4/F4MPQA4IHDTB8W4.SMALL.jpg ShiftyTips Yes this is a flashlight built in a bottle cap :)I thought that would be funny to turn a regular cap into a flashlight nothing more only that can I do it?And yes I made it that was a long journey with a lot of attempts!But If you stay with me you can make your own ;)So let's start... Watch the vid...
By: ShiftyTips

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Tue, 24 Nov 2015 12:35:12 PST
FA2B (First Aid Boom Box) http://www.instructables.com/id/FA2B-First-Aid-Boom-Box/
FA2B (First Aid Boom Box) - More DIY How To Projects]]> http://cdn.instructables.com/FOY/EY0X/IFOBIHCM/FOYEY0XIFOBIHCM.SQUARE2.jpg http://cdn.instructables.com/FOY/EY0X/IFOBIHCM/FOYEY0XIFOBIHCM.SQUARE.jpg http://cdn.instructables.com/FOY/EY0X/IFOBIHCM/FOYEY0XIFOBIHCM.SMALL.jpg Guga1979 Hi guys, this is my first instructable so please be nice! I have recently bought a SMSL SA50 T-amp. Performance of this little amp is really impressive considering its size and price. I recommend it. After using it with my home speakers, I started looking for a way to build mobile speakers using thi...
By: Guga1979

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Tue, 13 Oct 2015 07:25:21 PDT
Lemon Batteries: Lighting an LED with Lemons http://www.instructables.com/id/Lemon-Batteries-Lighting-an-LED-with-Lemons/
Lemon Batteries: Lighting an LED with Lemons - More DIY How To Projects]]> http://cdn.instructables.com/FF3/YDB9/IFO94CEY/FF3YDB9IFO94CEY.SQUARE2.jpg http://cdn.instructables.com/FF3/YDB9/IFO94CEY/FF3YDB9IFO94CEY.SQUARE.jpg http://cdn.instructables.com/FF3/YDB9/IFO94CEY/FF3YDB9IFO94CEY.SMALL.jpg mhland Did you know you can light an LED using fruits and vegetables? For this experiment, you will need the following materials: 4 lemons or potatoes 4 galvanized nails 4 U. S. copper pennies (minted before 1982 due to the change in copper content) or 4 copper wires an LED light a knife 5 alligator test ...
By: mhland

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Mon, 12 Oct 2015 15:54:21 PDT
How to Build Your First RC Plane for Under $100 - Transmitter, Shipping, Battery, Charger, and Hardware Included http://www.instructables.com/id/How-to-Build-Your-First-RC-Plane-for-Under-100-Tra/
How to Build Your First RC Plane for Under $100 - Transmitter, Shipping, Battery, Charger, and Hardware Included - More DIY How To Projects]]> http://cdn.instructables.com/F3D/JDIE/IFISD0YT/F3DJDIEIFISD0YT.SQUARE2.jpg http://cdn.instructables.com/F3D/JDIE/IFISD0YT/F3DJDIEIFISD0YT.SQUARE.jpg http://cdn.instructables.com/F3D/JDIE/IFISD0YT/F3DJDIEIFISD0YT.SMALL.jpg blakehansen99 Let's face it: radio controlled planes are expensive, especially if you are new to the hobby. Cheaper options are appearing every day, but for the most part, hobby-grade planes come with a big price. Flite Test's speed build kits and electronics packs are an option, but can also be pricey when all t...
By: blakehansen99

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Thu, 8 Oct 2015 19:21:17 PDT
12 Volt Battery Generator http://www.instructables.com/id/12-Volt-Battery-Generator/
12 Volt Battery Generator - More DIY How To Projects]]> http://cdn.instructables.com/FV9/NNKD/IEX4TR7G/FV9NNKDIEX4TR7G.SQUARE2.jpg http://cdn.instructables.com/FV9/NNKD/IEX4TR7G/FV9NNKDIEX4TR7G.SQUARE.jpg http://cdn.instructables.com/FV9/NNKD/IEX4TR7G/FV9NNKDIEX4TR7G.SMALL.jpg Solaron Inexpensive 12 volt back-up battery generator that is not hard to make. It will power what counts if the power goes out! Note: You must have a working knowledge of electricity and electrical circuits to do this project otherwise you could really hurt yourself.I've powered space heaters, refrigerator...
By: Solaron

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Fri, 25 Sep 2015 14:34:44 PDT
Portable Boombox/Speaker With Bluetooth http://www.instructables.com/id/Portable-Boombox-With-Bluetooth/
Portable Boombox/Speaker With Bluetooth - More DIY How To Projects]]> http://cdn.instructables.com/FAR/7W84/IFVC928M/FAR7W84IFVC928M.SQUARE2.jpg http://cdn.instructables.com/FAR/7W84/IFVC928M/FAR7W84IFVC928M.SQUARE.jpg http://cdn.instructables.com/FAR/7W84/IFVC928M/FAR7W84IFVC928M.SMALL.jpg william444555 So, you have a Bluetooth speaker but its lacking in volume and bass, this project cost me under £40 ($60) and packs a VERY loud punch. the whole project took me a whole summer holiday so around 6 weeks. the battery life on this project has not been measured because i cannot have it playing constantl...
By: william444555

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Sun, 20 Sep 2015 12:48:41 PDT
250 Class FPV Drone Under $350 http://www.instructables.com/id/250-Class-FPV-Drone-Under-350/
250 Class FPV Drone Under $350 - More DIY How To Projects]]> http://cdn.instructables.com/F14/3TWL/IEQXU9K5/F143TWLIEQXU9K5.SQUARE2.jpg http://cdn.instructables.com/F14/3TWL/IEQXU9K5/F143TWLIEQXU9K5.SQUARE.jpg http://cdn.instructables.com/F14/3TWL/IEQXU9K5/F143TWLIEQXU9K5.SMALL.jpg MoTinkerGNome So you want to build a first person view quad copter but don't know where to start? Well since you clicked this instructable I would say sit back get a pencil and paper out for notes and get ready to learn. This is going to be a long instructable, I am going to break down each system, documenting ...
By: MoTinkerGNome

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Sat, 19 Sep 2015 18:59:54 PDT
Arduino Battery Shield http://www.instructables.com/id/Arduino-Battery-Shield/
Arduino Battery Shield - More DIY How To Projects]]> http://cdn.instructables.com/FSB/TKUT/IEKJ7V63/FSBTKUTIEKJ7V63.SQUARE2.jpg http://cdn.instructables.com/FSB/TKUT/IEKJ7V63/FSBTKUTIEKJ7V63.SQUARE.jpg http://cdn.instructables.com/FSB/TKUT/IEKJ7V63/FSBTKUTIEKJ7V63.SMALL.jpg MarPok "Scotty, we need more Power!". This instructable is about making battery shield for Arduino. Material Material list: flat lithium battery (e.g. taken from old mobile phone) (I used battery for Huawei Ideos X5 U8800) Li-ion charger module with TP4056 (see on eBay) DC-to-DC step-up module, with V...
By: MarPok

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Tue, 15 Sep 2015 15:24:53 PDT
DIY Protected Lithium battery holder http://www.instructables.com/id/Build-protected-Lithium-battery-holder/
DIY Protected Lithium battery holder - More DIY How To Projects]]> http://cdn.instructables.com/FSO/OL28/IEGXTSO6/FSOOL28IEGXTSO6.SQUARE2.jpg http://cdn.instructables.com/FSO/OL28/IEGXTSO6/FSOOL28IEGXTSO6.SQUARE.jpg http://cdn.instructables.com/FSO/OL28/IEGXTSO6/FSOOL28IEGXTSO6.SMALL.jpg Carl Hauschke In this instructable I'll show you how to make a battery holder for Lithium 18650 batteries so you can use unprotected cells in your DIY projects without worrying about over discharge, overcharge, or short circuit.What we need:- 18650 Holder (http://ebay.to/1K3CY55) Edit: http://ebay.to/1K9HbyP The...
By: Carl Hauschke

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Sun, 13 Sep 2015 19:16:24 PDT
Super Simple Phone Charger http://www.instructables.com/id/Super-Simple-Phone-Charger/
Super Simple Phone Charger - More DIY How To Projects]]> http://cdn.instructables.com/FZU/C6A3/IEB8BZR9/FZUC6A3IEB8BZR9.SQUARE2.jpg http://cdn.instructables.com/FZU/C6A3/IEB8BZR9/FZUC6A3IEB8BZR9.SQUARE.jpg http://cdn.instructables.com/FZU/C6A3/IEB8BZR9/FZUC6A3IEB8BZR9.SMALL.jpg lonesoulsurfer This could possibly be one of the most simplest phone chargers you can make. I wanted to make a charger that could use a 9v battery to power-up my phone. The worst thing about having a phone charger which you charge via USB is you never remember to charge it! After looking through a few 'ibles I ...
By: lonesoulsurfer

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Thu, 10 Sep 2015 03:40:56 PDT
The BlackBOX-Super Fast Phone Charger (68% in 31 Minutes) http://www.instructables.com/id/The-BlackBOX-Super-Fast-Phone-Charger-68-in-31-Min/
The BlackBOX-Super Fast Phone Charger (68% in 31 Minutes) - More DIY How To Projects]]> http://cdn.instructables.com/FUD/FS0V/IE7JARND/FUDFS0VIE7JARND.SQUARE2.jpg http://cdn.instructables.com/FUD/FS0V/IE7JARND/FUDFS0VIE7JARND.SQUARE.jpg http://cdn.instructables.com/FUD/FS0V/IE7JARND/FUDFS0VIE7JARND.SMALL.jpg Imetomi Hi DIYers! Did ever hapenned with you that you hurried somewhere and your phone was discharged? I think your answer is YES. I heard about phones and charges that can be recharged in 30 seconds, this is awesome, but they have a special battery. My goal/target was to develop a device that is compatibl...
By: Imetomi

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Mon, 7 Sep 2015 10:03:57 PDT
Coke Can Phone Speaker http://www.instructables.com/id/Coke-Can-Phone-Speaker/
Coke Can Phone Speaker - More DIY How To Projects]]> http://cdn.instructables.com/F46/NYK2/IE7J5VS4/F46NYK2IE7J5VS4.SQUARE2.jpg http://cdn.instructables.com/F46/NYK2/IE7J5VS4/F46NYK2IE7J5VS4.SQUARE.jpg http://cdn.instructables.com/F46/NYK2/IE7J5VS4/F46NYK2IE7J5VS4.SMALL.jpg jsincn This instructable is a guide on how to build an amazingly small, powerful phone speaker inside a coke can. Total cost of this speaker is below 20$, excluding batteries and coke can of course. Advantages of this speaker include:LoudnessStereo Sound (vs. Mono found on cheap phones, etc.)Very Energy Ef...
By: jsincn

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Sun, 6 Sep 2015 06:17:32 PDT
Arduino Battery Tester http://www.instructables.com/id/Arduino-Battery-Tester-1/
Arduino Battery Tester - More DIY How To Projects]]> http://cdn.instructables.com/FCL/B5M6/IDZSJ9SN/FCLB5M6IDZSJ9SN.SQUARE2.jpg http://cdn.instructables.com/FCL/B5M6/IDZSJ9SN/FCLB5M6IDZSJ9SN.SQUARE.jpg http://cdn.instructables.com/FCL/B5M6/IDZSJ9SN/FCLB5M6IDZSJ9SN.SMALL.jpg ThisIsSteve In this tutorial I'm going to show you how to test a battery if new or old using an Arduino, this will also demonstrate analog read function in the Arduino. This works for only cells whose voltage is below 5v if you are using a UNO or 3.3V if you are using a mini. For higher voltages you will need t...
By: ThisIsSteve

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Mon, 31 Aug 2015 17:49:58 PDT
Bubba Gump Battery Swap http://www.instructables.com/id/Bubba-Gump-Battery-Swap/
Bubba Gump Battery Swap - More DIY How To Projects]]> http://cdn.instructables.com/FT1/OJ1G/IDUQMMEF/FT1OJ1GIDUQMMEF.SQUARE2.jpg http://cdn.instructables.com/FT1/OJ1G/IDUQMMEF/FT1OJ1GIDUQMMEF.SQUARE.jpg http://cdn.instructables.com/FT1/OJ1G/IDUQMMEF/FT1OJ1GIDUQMMEF.SMALL.jpg Pjtheman I happen to like going to Bubba Gump, and while their food is pretty alright, I mainly go there for the cocktails! One of the treats of going there is that, for a lot of the cocktails, you get to keep the glass. I'd love to get one each of all the big, glass ones, but I also like the plastic light-u...
By: Pjtheman

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Fri, 28 Aug 2015 11:03:42 PDT
Cheap And Easy 12V Clip Lights For The Off Grid World http://www.instructables.com/id/Cheap-And-Easy-12V-Clip-Lights-For-Your-Micro-Sola/
Cheap And Easy 12V Clip Lights For The Off Grid World - More DIY How To Projects]]> http://cdn.instructables.com/F7I/F12N/IDUQLL47/F7IF12NIDUQLL47.SQUARE2.jpg http://cdn.instructables.com/F7I/F12N/IDUQLL47/F7IF12NIDUQLL47.SQUARE.jpg http://cdn.instructables.com/F7I/F12N/IDUQLL47/F7IF12NIDUQLL47.SMALL.jpg luxstar The most common 12 volt LED lights are designed to replace incandescent light on cars. These are well suited for 12 volt micro solar systems but lower power automotive lights are hard to find (1/4 watt and lower). So I decided to make some of my own for my 20 watt setup. I bought the piranha LEDS...
By: luxstar

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Thu, 27 Aug 2015 22:41:44 PDT
Powerfull Portable Bluetooth Speaker 2x5W http://www.instructables.com/id/Powerfull-Portable-Bluetooth-Speaker-2x5W/
Powerfull Portable Bluetooth Speaker 2x5W - More DIY How To Projects]]> http://cdn.instructables.com/FU5/IPKB/IDTAXQ8I/FU5IPKBIDTAXQ8I.SQUARE2.jpg http://cdn.instructables.com/FU5/IPKB/IDTAXQ8I/FU5IPKBIDTAXQ8I.SQUARE.jpg http://cdn.instructables.com/FU5/IPKB/IDTAXQ8I/FU5IPKBIDTAXQ8I.SMALL.jpg bartroosen Bluetooth SpeakerMake your own powerfull Bluetooth Speaker with some extra features, easy explained, cheap and handy to use for less then 15$. Maybe you have some components which you don't need to buy like 5W speakers and some lithium batteries to make it less expensive like I did. In the following...
By: bartroosen

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Thu, 27 Aug 2015 02:01:15 PDT
Reusable Vinegar Battery http://www.instructables.com/id/Reusable-Vinegar-Battery/
Reusable Vinegar Battery - More DIY How To Projects]]> http://cdn.instructables.com/F01/V9MQ/IDON85CE/F01V9MQIDON85CE.SQUARE2.jpg http://cdn.instructables.com/F01/V9MQ/IDON85CE/F01V9MQIDON85CE.SQUARE.jpg http://cdn.instructables.com/F01/V9MQ/IDON85CE/F01V9MQIDON85CE.SMALL.jpg Gursimran Singh 425 Hi,in this tutorial I am going to show you how to make a reusable battery from vinegar that's easy and interesting.This even reduces waste by using up some of the electronic waste.Making electricity from things you find around the house is a fun project.There are lots of easy ways to make homemade b...
By: Gursimran Singh 425

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Sun, 23 Aug 2015 17:53:02 PDT
Mobile Ultimaker Rucksack http://www.instructables.com/id/Mobile-Ultimaker-Rucksack/
Mobile Ultimaker Rucksack - More DIY How To Projects]]> http://cdn.instructables.com/FJW/U0VE/IDON8KZI/FJWU0VEIDON8KZI.SQUARE2.jpg http://cdn.instructables.com/FJW/U0VE/IDON8KZI/FJWU0VEIDON8KZI.SQUARE.jpg http://cdn.instructables.com/FJW/U0VE/IDON8KZI/FJWU0VEIDON8KZI.SMALL.jpg flouSH Here's my guide how to get your Ultimaker mobile! I try to illustrate the two parts as clearly as possible. First we look into how to mount some rucksack straps without damaging your Ultimaker and then we'll look into the electronics you need to power it autonomously. To get you motivated we start o...
By: flouSH

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Sun, 23 Aug 2015 20:17:22 PDT
DIY Portable Bluetooth Speaker 30W, BT4.0, Passive Radiators http://www.instructables.com/id/DIY-Bluetooth-Speaker-30W-BT40-Passive-Radiators/
DIY Portable Bluetooth Speaker 30W, BT4.0, Passive Radiators - More DIY How To Projects]]> http://cdn.instructables.com/FTP/6LZE/IDM03MJI/FTP6LZEIDM03MJI.SQUARE2.jpg http://cdn.instructables.com/FTP/6LZE/IDM03MJI/FTP6LZEIDM03MJI.SQUARE.jpg http://cdn.instructables.com/FTP/6LZE/IDM03MJI/FTP6LZEIDM03MJI.SMALL.jpg Barry_L Hey everybody! So in this tutorial I'm going to show you exactly how I built this (true) 30W RMS portable bluetooth speaker! Parts for this speaker can be optained pretty easily and cheaply, and there will be links provided to everything needed. First off, here are some specs and features: Bluetooth...
By: Barry_L

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Sat, 22 Aug 2015 10:42:27 PDT
Emergency Apocalypse cell phone BATTERY EXTENDED X4 http://www.instructables.com/id/Emergency-Apocalypse-cell-phone-BATTERY-EXTENDED-X/
Emergency Apocalypse cell phone BATTERY EXTENDED X4 - More DIY How To Projects]]> http://cdn.instructables.com/FZH/KE6O/IDK2MI6S/FZHKE6OIDK2MI6S.SQUARE2.jpg http://cdn.instructables.com/FZH/KE6O/IDK2MI6S/FZHKE6OIDK2MI6S.SQUARE.jpg http://cdn.instructables.com/FZH/KE6O/IDK2MI6S/FZHKE6OIDK2MI6S.SMALL.jpg kmaikaza We all know that the biggest problem after being affected by a natural disaster or a Zombie Apocalypse , is loss of the electric grid. And all phones specially new ones have short battery life of 8h if we are realistic. All cellphone towers have backup generators or battery banks enabling them to ...
By: kmaikaza

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Thu, 20 Aug 2015 15:21:47 PDT
Glowing Space Invader Shoe Lace Accessory http://www.instructables.com/id/Glowing-Space-Invader-Shoe-Lace-Accessory/
Glowing Space Invader Shoe Lace Accessory - More DIY How To Projects]]> http://cdn.instructables.com/FBJ/4J7D/IDFW7BE4/FBJ4J7DIDFW7BE4.SQUARE2.jpg http://cdn.instructables.com/FBJ/4J7D/IDFW7BE4/FBJ4J7DIDFW7BE4.SQUARE.jpg http://cdn.instructables.com/FBJ/4J7D/IDFW7BE4/FBJ4J7DIDFW7BE4.SMALL.jpg CarmelitoAndrade Here is a great way to add bling to you shoes !! to impress your friends and family at a late evening summer party. 3D print the files attached in the steps below, and add RGB LEDs and coin cell batteries to make the Space Invader Shoe Lace accessory glow..Now if you don't have LEDs and batteries h...
By: CarmelitoAndrade

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Mon, 17 Aug 2015 07:32:33 PDT
Bluetooth Battery Portable Speaker http://www.instructables.com/id/Bluetooth-Battery-Portable-Speaker/
Bluetooth Battery Portable Speaker - More DIY How To Projects]]> http://cdn.instructables.com/F0B/J2QF/IDCXFNP0/F0BJ2QFIDCXFNP0.SQUARE2.jpg http://cdn.instructables.com/F0B/J2QF/IDCXFNP0/F0BJ2QFIDCXFNP0.SQUARE.jpg http://cdn.instructables.com/F0B/J2QF/IDCXFNP0/F0BJ2QFIDCXFNP0.SMALL.jpg dnibeck As with most of my projects, the inspiration was borrowed and the final project is different then what I had originally planned. I started out with wanting to make an ammo can speaker. Unfortunately (actually fortunately), I didn't have a 50 cal case. My can was too small. I decided to use a pla...
By: dnibeck

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Sat, 15 Aug 2015 16:22:41 PDT
Handy Polarity Checker http://www.instructables.com/id/Handy-Polarity-Checker/
Handy Polarity Checker - More DIY How To Projects]]> http://cdn.instructables.com/FVN/N5A9/IDA2ICYO/FVNN5A9IDA2ICYO.SQUARE2.jpg http://cdn.instructables.com/FVN/N5A9/IDA2ICYO/FVNN5A9IDA2ICYO.SQUARE.jpg http://cdn.instructables.com/FVN/N5A9/IDA2ICYO/FVNN5A9IDA2ICYO.SMALL.jpg Erfinden Electrical polarity (positive and negative) is present in every electrical circuit. Electrons flow from the negative pole to the positive pole. In a direct current (DC) circuit, one pole is always negative, the other pole is always positive and the electrons flow in one direction only. In an alterna...
By: Erfinden

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Thu, 13 Aug 2015 11:28:54 PDT
Solar Battery Charger http://www.instructables.com/id/Solar-Battery-Charger2/
Solar Battery Charger - More DIY How To Projects]]> http://cdn.instructables.com/FJ5/TZR1/ICRXYHPI/FJ5TZR1ICRXYHPI.SQUARE2.jpg http://cdn.instructables.com/FJ5/TZR1/ICRXYHPI/FJ5TZR1ICRXYHPI.SQUARE.jpg http://cdn.instructables.com/FJ5/TZR1/ICRXYHPI/FJ5TZR1ICRXYHPI.SMALL.jpg foolishandforgetful Why buy a battery charger when you can make a solar powered one?Things you’ll need: Solar panel (I used a 3V / 250mA one) Used up rechargeable batteries (I used 1 AA and 1AAA) Mint tin (I’ll be using a herbal candy tin) Some wires 1 AA battery box x 1 1 AAA battery box x 1 1N4148 diode 2.5mm female ...
By: foolishandforgetful

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Mon, 3 Aug 2015 11:44:58 PDT
DIY SOLAR LI ION/ LIPO BATTERY CHARGER http://www.instructables.com/id/DIY-SOLAR-LI-ION-LIPO-BATTERY-CHARGER/
DIY SOLAR LI ION/ LIPO BATTERY CHARGER - More DIY How To Projects]]> http://cdn.instructables.com/FP4/60MK/ICYN1ZRN/FP460MKICYN1ZRN.SQUARE2.jpg http://cdn.instructables.com/FP4/60MK/ICYN1ZRN/FP460MKICYN1ZRN.SQUARE.jpg http://cdn.instructables.com/FP4/60MK/ICYN1ZRN/FP460MKICYN1ZRN.SMALL.jpg deba168 Imagine you are a gadget lover or hobbyist /tinkerer or RC enthusiast and you are going for a camping or outing .Your smart phone/MP3 player battery run out,you have taken a RC Quad Copter,but not able to fly for a long time. So you definitely need a good charger to charge the battery. Am I right ?...
By: deba168

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Mon, 3 Aug 2015 08:11:37 PDT
Raspberry Pi powered by batteries http://www.instructables.com/id/Raspberry-Pi-powered-by-battery/
Raspberry Pi powered by batteries - More DIY How To Projects]]> http://cdn.instructables.com/FB4/8X7G/ICG2DKWG/FB48X7GICG2DKWG.SQUARE2.jpg http://cdn.instructables.com/FB4/8X7G/ICG2DKWG/FB48X7GICG2DKWG.SQUARE.jpg http://cdn.instructables.com/FB4/8X7G/ICG2DKWG/FB48X7GICG2DKWG.SMALL.jpg The DocDoc In this instructable I will show you how to properly supply power to a Raspberry Pi or Pi 2 with a battery pack or any voltage between 2.9 -32 volts DC. I will be using a efficient Pololu Step-Up/Step-Down Voltage Regulator and a toggle switch.This can be done with any Raspberry pi version. Using a ...
By: The DocDoc

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Thu, 23 Jul 2015 16:00:36 PDT
Almost uninteruptable power supply. http://www.instructables.com/id/Almost-uninteruptable-power-supply/
Almost uninteruptable power supply. - More DIY How To Projects]]> http://cdn.instructables.com/FJ0/26FZ/ICE1SQSM/FJ026FZICE1SQSM.SQUARE2.jpg http://cdn.instructables.com/FJ0/26FZ/ICE1SQSM/FJ026FZICE1SQSM.SQUARE.jpg http://cdn.instructables.com/FJ0/26FZ/ICE1SQSM/FJ026FZICE1SQSM.SMALL.jpg smurray2 This is my first instructable. I am an engineer working with electronic road signage. Recently a customer came to us looking for a sign which warned road users of dangerous conditions caused by high wind speeds at a bridge site. The sign and subsequent control system were not a problem, however the ...
By: smurray2

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Wed, 22 Jul 2015 01:33:35 PDT
DIY Battery Pack for FPV (recycling 18650 cells from a laptop) http://www.instructables.com/id/DIY-Battery-Pack-for-Quadcopter-recycling-18650-ce/
DIY Battery Pack for FPV (recycling 18650 cells from a laptop) - More DIY How To Projects]]> http://cdn.instructables.com/FEY/SYPD/IC37EQ4A/FEYSYPDIC37EQ4A.SQUARE2.jpg http://cdn.instructables.com/FEY/SYPD/IC37EQ4A/FEYSYPDIC37EQ4A.SQUARE.jpg http://cdn.instructables.com/FEY/SYPD/IC37EQ4A/FEYSYPDIC37EQ4A.SMALL.jpg comsa42 Old laptop cells can hold a charge long after your laptop goes kaput. Here's how to recycle those cells to make a general-purpose battery pack!This battery pack is good for things like RC planes, quadcopters, FPV, and more (if your cells have the correct C rating)! It has a nominal voltage of 11.1v ...
By: comsa42

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Tue, 14 Jul 2015 15:39:27 PDT
Make Your Own Rechargeable Battery http://www.instructables.com/id/Make-Your-Own-Rechargable-Battery/
Make Your Own Rechargeable Battery - More DIY How To Projects]]> http://cdn.instructables.com/FUV/HB27/IBL6A5S4/FUVHB27IBL6A5S4.SQUARE2.jpg http://cdn.instructables.com/FUV/HB27/IBL6A5S4/FUVHB27IBL6A5S4.SQUARE.jpg http://cdn.instructables.com/FUV/HB27/IBL6A5S4/FUVHB27IBL6A5S4.SMALL.jpg Gursimran Singh 425 Batteries. Needed for just about every electronic project, electronics revolve around them. But think about it, What happens once they lose their power?We throw them aside. These batteries are building up in our landfills, so I set myself to find out how to reuse them.This project is very environmen...
By: Gursimran Singh 425

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Thu, 2 Jul 2015 01:22:32 PDT