Instructables: exploring - technology - battery - featured http://www.instructables.com Sun, 30 Aug 2015 22:08:55 PDT BLOX v1.01 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 wires1 AA battery box x 11 AAA battery box x 11N4148 diode2.5mm female plug2.5m...
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
Make Your Own DIY Battery http://www.instructables.com/id/Make-Your-Own-DIY-Battery/
Make Your Own DIY Battery - More DIY How To Projects]]> http://cdn.instructables.com/FK6/LOS8/IBAN28WI/FK6LOS8IBAN28WI.SQUARE2.jpg http://cdn.instructables.com/FK6/LOS8/IBAN28WI/FK6LOS8IBAN28WI.SQUARE.jpg http://cdn.instructables.com/FK6/LOS8/IBAN28WI/FK6LOS8IBAN28WI.SMALL.jpg Gursimran Singh 425 This project is very environmentally beneficial, as it takes a dead battery and turns them into a new one, preventing the creation of electronic waste. The possibilities are endless on this concept (stronger batteries, tiny batteries) and just think of what it would be like if everyone on this plane...
By: Gursimran Singh 425

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Thu, 25 Jun 2015 01:58:28 PDT
Basketball Robot with Intel Edison http://www.instructables.com/id/Basketball-Robot-with-Intel-Edison/
Basketball Robot with Intel Edison - More DIY How To Projects]]> http://cdn.instructables.com/FA6/S6OT/IB22OCNQ/FA6S6OTIB22OCNQ.SQUARE2.jpg http://cdn.instructables.com/FA6/S6OT/IB22OCNQ/FA6S6OTIB22OCNQ.SQUARE.jpg http://cdn.instructables.com/FA6/S6OT/IB22OCNQ/FA6S6OTIB22OCNQ.SMALL.jpg MikeArduino He shoots! He scores! The crowd goes wild! Let’s build a robot that plays basketball with you. This tutorial is a step-by-step guide for a simple and small differential-drive robot that uses the Intel® Edison. You’ll get to know a few more tricks on how to use Mini Breakout Kit and set up a node.js...
By: MikeArduino

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Fri, 19 Jun 2015 08:18:07 PDT
Getting Started with Intel® Edison Mini Breakout Board http://www.instructables.com/id/Getting-Started-with-Intel-Edison-Mini-Breakout-Bo/
Getting Started with Intel® Edison Mini Breakout Board - More DIY How To Projects]]> http://cdn.instructables.com/F4I/CX0R/IB22N3R3/F4ICX0RIB22N3R3.SQUARE2.jpg http://cdn.instructables.com/F4I/CX0R/IB22N3R3/F4ICX0RIB22N3R3.SQUARE.jpg http://cdn.instructables.com/F4I/CX0R/IB22N3R3/F4ICX0RIB22N3R3.SMALL.jpg MikeArduino Intel provides 2 different hardware platforms to work with Intel® Edison development board. The core module of Intel® Edison is called Intel® Edison Compute Module, while the 2 extension boards are called Intel® Edison Arduino Board and Intel® Edison Breakout Board respectively. We’ll refer to the...
By: MikeArduino

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Fri, 19 Jun 2015 06:28:05 PDT
Make Buzzing Bottle Cap Bots for World Domination http://www.instructables.com/id/Make-Buzzing-Bottle-Cap-Bots-for-World-Domination/
Make Buzzing Bottle Cap Bots for World Domination - More DIY How To Projects]]> http://cdn.instructables.com/FF0/Z01S/IAZZG92B/FF0Z01SIAZZG92B.SQUARE2.jpg http://cdn.instructables.com/FF0/Z01S/IAZZG92B/FF0Z01SIAZZG92B.SQUARE.jpg http://cdn.instructables.com/FF0/Z01S/IAZZG92B/FF0Z01SIAZZG92B.SMALL.jpg AlexFW In this project we'll be making "stupid" swarm bots that can be assembled in less than 10 minutes and cost less than $5 per bot. They are also extremely easy to make as there is no coding involved, no microcontroller, and no advanced circuitry. Vibrating motors cause these robots to move around, an...
By: AlexFW

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Tue, 16 Jun 2015 18:35:38 PDT
12/24 volt Wind Turbine Power Station - Starts charging batteries in 2mph winds http://www.instructables.com/id/1224-volt-Wind-Turbine-Power-Station-Starts-chargi/
12/24 volt Wind Turbine Power Station - Starts charging batteries in 2mph winds - More DIY How To Projects]]> http://cdn.instructables.com/F38/SCKW/IANRWFMA/F38SCKWIANRWFMA.SQUARE2.jpg http://cdn.instructables.com/F38/SCKW/IANRWFMA/F38SCKWIANRWFMA.SQUARE.jpg http://cdn.instructables.com/F38/SCKW/IANRWFMA/F38SCKWIANRWFMA.SMALL.jpg TheBettaGarden This instructable shows how to build a complete standalone 12/24 volt Wind Powered Electrical Generator using old computer parts, a bike wheel, some wood, a coil and miscellaneous brackets and screws. Please vote for this project :)After reading the following article on how well a bike wheel could w...
By: TheBettaGarden

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Mon, 8 Jun 2015 17:59:19 PDT
How to make a Bluetooth Speaker http://www.instructables.com/id/How-to-make-a-Bluetooth-Speaker/
How to make a Bluetooth Speaker - More DIY How To Projects]]> http://cdn.instructables.com/FN3/XTNC/IAJNYBFE/FN3XTNCIAJNYBFE.SQUARE2.jpg http://cdn.instructables.com/FN3/XTNC/IAJNYBFE/FN3XTNCIAJNYBFE.SQUARE.jpg http://cdn.instructables.com/FN3/XTNC/IAJNYBFE/FN3XTNCIAJNYBFE.SMALL.jpg Constructed Hi, Welcome to my instructable!Today Ill teach you how to build a DIY Bluetooth speaker. Its extremely easy to make, and great for anyone learning electronics. The best part is you dont need any past experience with electronics! This project is great to practice your soldering skills (Mine clearly n...
By: Constructed

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Mon, 8 Jun 2015 07:25:21 PDT
Simple Polarity Checker http://www.instructables.com/id/Simple-Polarity-Checker/
Simple Polarity Checker - More DIY How To Projects]]> http://cdn.instructables.com/FPI/IDE7/IAGMT4LQ/FPIIDE7IAGMT4LQ.SQUARE2.jpg http://cdn.instructables.com/FPI/IDE7/IAGMT4LQ/FPIIDE7IAGMT4LQ.SQUARE.jpg http://cdn.instructables.com/FPI/IDE7/IAGMT4LQ/FPIIDE7IAGMT4LQ.SMALL.jpg Salman Naveed Ever encountered difficulty in knowing if you've connected the wires right? Tired of pulling out your multimeter every time? Need something more compact and simpler to help you out? If you do, then this Instructable is for you!Read on to learn how to make a very simple, handy and useful polarity che...
By: Salman Naveed

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Thu, 4 Jun 2015 07:48:20 PDT
Make A Joule Thief Coil Without A Ferrite Toroid http://www.instructables.com/id/Make-A-Joule-Thief-Coil-Without-A-Ferrite-Toroid/
Make A Joule Thief Coil Without A Ferrite Toroid - More DIY How To Projects]]> http://cdn.instructables.com/FI7/PB2Z/IAG0Q3VE/FI7PB2ZIAG0Q3VE.SQUARE2.jpg http://cdn.instructables.com/FI7/PB2Z/IAG0Q3VE/FI7PB2ZIAG0Q3VE.SQUARE.jpg http://cdn.instructables.com/FI7/PB2Z/IAG0Q3VE/FI7PB2ZIAG0Q3VE.SMALL.jpg El Mano There are many different articles and videos to be found online that will teach you how to build a Joule Thief circuit and power LEDs off of dead batteries. Most of them, however, call for some form of coil made using a ring, or toroid, made of ferrite. This can be rather daunting to newcomers to ...
By: El Mano

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Wed, 3 Jun 2015 16:06:41 PDT
DIY Solar USB Charger - Altoids http://www.instructables.com/id/Solar-Altoids-USB-Charger/
DIY Solar USB Charger - Altoids - More DIY How To Projects]]> http://cdn.instructables.com/FK5/0D44/GMSXIHN3/FK50D44GMSXIHN3.SQUARE2.jpg http://cdn.instructables.com/FK5/0D44/GMSXIHN3/FK50D44GMSXIHN3.SQUARE.jpg http://cdn.instructables.com/FK5/0D44/GMSXIHN3/FK50D44GMSXIHN3.SMALL.jpg JoshuaZimmerman I've been reading a bunch of blogs this fine Earth Day morning and have noticed that most of them are posting little write ups about green solar powered USB gadget chargers. They're all quite nice, but also quite expensive. I don't think I've seen any for less than $60, and I've not seen one that ...
By: JoshuaZimmerman

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Fri, 22 Apr 2011 14:12:51 PDT
Portable Bluetooth Boomcase http://www.instructables.com/id/Portable-Bluetooth-Boomcase/
Portable Bluetooth Boomcase - More DIY How To Projects]]> http://cdn.instructables.com/FQO/FNT3/IA3V2EIP/FQOFNT3IA3V2EIP.SQUARE2.jpg http://cdn.instructables.com/FQO/FNT3/IA3V2EIP/FQOFNT3IA3V2EIP.SQUARE.jpg http://cdn.instructables.com/FQO/FNT3/IA3V2EIP/FQOFNT3IA3V2EIP.SMALL.jpg oleys Hello,The Boomcase is a vintage suitcase converted into a boomcase, It has two woofers and two tweeters. The case is powered by one lead acid battery.The boomcase can be charged via a 230V power supply. The amplifier delivers 15 watts of power per channel, and has a connector for an external sub...
By: oleys

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Mon, 25 May 2015 05:29:37 PDT
The Great Blue ParkShark RC Airplane http://www.instructables.com/id/The-Great-Blue-ParkShark-RC-Airplane/
The Great Blue ParkShark RC Airplane - More DIY How To Projects]]> http://cdn.instructables.com/F43/W44W/I9YBTE04/F43W44WI9YBTE04.SQUARE2.jpg http://cdn.instructables.com/F43/W44W/I9YBTE04/F43W44WI9YBTE04.SQUARE.jpg http://cdn.instructables.com/F43/W44W/I9YBTE04/F43W44WI9YBTE04.SMALL.jpg Jason9198 The ParkShark is the master of its environment. Capable of blistering speed and extreme maneuverability it is able to pray on the unsuspecting. It is an airplane that is sure to attract lots of attention wherever it is flown. Is the attention because it fly's exceptionally well, its devilishly good...
By: Jason9198

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Thu, 21 May 2015 17:56:52 PDT
WIFI Battery Monitor System - ESP8266 http://www.instructables.com/id/WIFI-Battery-Monitor-System-ESP8266/
WIFI Battery Monitor System - ESP8266 - More DIY How To Projects]]> http://cdn.instructables.com/FAW/PV3U/I9UE25NX/FAWPV3UI9UE25NX.SQUARE2.jpg http://cdn.instructables.com/FAW/PV3U/I9UE25NX/FAWPV3UI9UE25NX.SQUARE.jpg http://cdn.instructables.com/FAW/PV3U/I9UE25NX/FAWPV3UI9UE25NX.SMALL.jpg TrackerJ One of the main problem in battery powered projects is to choose/use the proper battery size/model/type. As market is flooded now with a lot of low quality batteries claiming thousands of mAh ( Ultrafire fakes stories is just an example) the only way to proper check them is to run a set of test...
By: TrackerJ

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Wed, 20 May 2015 01:35:07 PDT
REUSE YOUR OLD LAPTOP BATTERY TO MAKE A POWER BANK http://www.instructables.com/id/REUSE-YOUR-OLD-LAPTOP-BATTERY-TO-MAKE-A-POWER-BANK/
REUSE YOUR OLD LAPTOP BATTERY TO MAKE A POWER BANK - More DIY How To Projects]]> http://cdn.instructables.com/FWS/CJ1V/I9V6O782/FWSCJ1VI9V6O782.SQUARE2.jpg http://cdn.instructables.com/FWS/CJ1V/I9V6O782/FWSCJ1VI9V6O782.SQUARE.jpg http://cdn.instructables.com/FWS/CJ1V/I9V6O782/FWSCJ1VI9V6O782.SMALL.jpg deba168 Few months ago my Dell laptop battery did not work.Whenever I unplug it from main AC supply,the laptop switched off immediately.After few days of frustration, I replaced the battery and kept the dead one (as per my laptop message) for tinkering.I was curious what I would find inside it.Then I go thr...
By: deba168

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Tue, 19 May 2015 10:20:21 PDT
Keyring Phone Charger http://www.instructables.com/id/Keyring-Phone-Charger/
Keyring Phone Charger - More DIY How To Projects]]> http://cdn.instructables.com/F91/C9VM/I9FGXR3C/F91C9VMI9FGXR3C.SQUARE2.jpg http://cdn.instructables.com/F91/C9VM/I9FGXR3C/F91C9VMI9FGXR3C.SQUARE.jpg http://cdn.instructables.com/F91/C9VM/I9FGXR3C/F91C9VMI9FGXR3C.SMALL.jpg ShakeTheFuture In this Instructable, I made a simple keyring charger.It can charge your phone's battery with a standard 9v battery.If you ever travel and find that your battery is dying, just get a 9v battery and use your keyring to charge your phone.For this project you'll need:Car's USB chargerMicro USB to USB a...
By: ShakeTheFuture

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Sat, 9 May 2015 14:53:56 PDT
Arduino Battery Voltage Indicator http://www.instructables.com/id/Arduino-Battery-Voltage-Indicator/
Arduino Battery Voltage Indicator - More DIY How To Projects]]> http://cdn.instructables.com/FCP/Y49E/I9FGR18V/FCPY49EI9FGR18V.SQUARE2.jpg http://cdn.instructables.com/FCP/Y49E/I9FGR18V/FCPY49EI9FGR18V.SQUARE.jpg http://cdn.instructables.com/FCP/Y49E/I9FGR18V/FCPY49EI9FGR18V.SMALL.jpg chienline When we are using a battery powered Arduino such as RC robots or Temperature Controller, we might want to check the battery voltage if it needs to be charged or replaced. It happens to me with my RC Panzer. Sometimes when my kids are about to run it, it moves very slow, low battery. Then they are di...
By: chienline

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Fri, 8 May 2015 03:32:41 PDT
Simple Miniature Joule Thief http://www.instructables.com/id/Simple-Miniature-Joufe-Thief/
Simple Miniature Joule Thief - More DIY How To Projects]]> http://cdn.instructables.com/F4G/K5D7/I9E1DWQR/F4GK5D7I9E1DWQR.SQUARE2.jpg http://cdn.instructables.com/F4G/K5D7/I9E1DWQR/F4GK5D7I9E1DWQR.SQUARE.jpg http://cdn.instructables.com/F4G/K5D7/I9E1DWQR/F4GK5D7I9E1DWQR.SMALL.jpg Petrstep Hello, this is my first instructable and I'm going to show you how you can make a very small joule thief circuit that you can fit anywhere and can be used to power LEDs or any other device with nearly dead batteries. This simple circuit works from voltages as low as 0,5V. Parts list Tools:solderi...
By: Petrstep

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Thu, 7 May 2015 12:27:35 PDT
64x16 RED LED Marquee http://www.instructables.com/id/64x16-RED-LED-Marquee/
64x16 RED LED Marquee - More DIY How To Projects]]> http://cdn.instructables.com/FJV/50YF/I9CLVEWV/FJV50YFI9CLVEWV.SQUARE2.jpg http://cdn.instructables.com/FJV/50YF/I9CLVEWV/FJV50YFI9CLVEWV.SQUARE.jpg http://cdn.instructables.com/FJV/50YF/I9CLVEWV/FJV50YFI9CLVEWV.SMALL.jpg Tustin High T-Tech The purpose of this small scale LED marquee is to display messages to our classroom in a more modern and centralized way. In the classroom, this construction would save white board space and is convenient because it can store a large amount of information. It is also fairly simple to program and has...
By: Tustin High T-Tech

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Wed, 6 May 2015 10:13:32 PDT
Maggie the Simple Electromagnet! http://www.instructables.com/id/Maggie-the-Electromagnet/
Maggie the Simple Electromagnet! - More DIY How To Projects]]> http://cdn.instructables.com/FQK/O9GZ/I9B6HD0U/FQKO9GZI9B6HD0U.SQUARE2.jpg http://cdn.instructables.com/FQK/O9GZ/I9B6HD0U/FQKO9GZI9B6HD0U.SQUARE.jpg http://cdn.instructables.com/FQK/O9GZ/I9B6HD0U/FQKO9GZI9B6HD0U.SMALL.jpg The Oakland Toy Lab Maggie sure puts the FUN in the four FUNdamental forces. This project is a great introduction to electromagnetism, the force that not only helps pick up squished cars in junkyard wars, but is also responsible for a lot of the properties of matter in everyday life. Get enough electrons flowing via yo...
By: The Oakland Toy Lab

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Tue, 5 May 2015 16:10:53 PDT
DIY Penny Battery http://www.instructables.com/id/DIY-Penny-Battery/
DIY Penny Battery - More DIY How To Projects]]> http://cdn.instructables.com/FBW/I4KL/I99R60TD/FBWI4KLI99R60TD.SQUARE2.jpg http://cdn.instructables.com/FBW/I4KL/I99R60TD/FBWI4KLI99R60TD.SQUARE.jpg http://cdn.instructables.com/FBW/I4KL/I99R60TD/FBWI4KLI99R60TD.SMALL.jpg bobdabiulder So, here is a simple way to make a low powered battery for under a dollar. Getting the stuff ready You need:5 american* pennies w/ dates between 1945ish - 1980. I'm not sure if "wheat pennies" work.Tin foilCardboardA cup of vinegar - Salt water works too, just not nearly as well. * - According ...
By: bobdabiulder

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Mon, 4 May 2015 17:51:06 PDT
RC Transmitter $5 Battery Pack http://www.instructables.com/id/RC-Transmitter-5-Battery-Pack/
RC Transmitter $5 Battery Pack - More DIY How To Projects]]> http://cdn.instructables.com/FE1/J1DY/I93FG2NV/FE1J1DYI93FG2NV.SQUARE2.jpg http://cdn.instructables.com/FE1/J1DY/I93FG2NV/FE1J1DYI93FG2NV.SQUARE.jpg http://cdn.instructables.com/FE1/J1DY/I93FG2NV/FE1J1DYI93FG2NV.SMALL.jpg Khaleel123 I got tired of taking out and putting in 8 AA batteries in my flysky FS-T6 transmitter every time I went out to use it. So I decided to make a single pack that is rechargeable and can be swapped in and out easily. This Mod will only work on transmitters that use (12volts) 8 AA or 8 AAA batteries. ...
By: Khaleel123

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Sat, 2 May 2015 00:05:03 PDT
All in One Prototyping Plate for Arduino Uno http://www.instructables.com/id/Portable-Prototyping-Holder-for-Arduino-Uno/
All in One Prototyping Plate for Arduino Uno - More DIY How To Projects]]> http://cdn.instructables.com/F2T/JOZK/I916ESGE/F2TJOZKI916ESGE.SQUARE2.jpg http://cdn.instructables.com/F2T/JOZK/I916ESGE/F2TJOZKI916ESGE.SQUARE.jpg http://cdn.instructables.com/F2T/JOZK/I916ESGE/F2TJOZKI916ESGE.SMALL.jpg BradB5 Rev3ProtoPack is an Arduino Uno breadboarding plate that allows you to prototype circuits wherever you go. It has a 9 volt battery holder, Arduino Uno anti-static bumper case, and a half-size breadboard slot, so you have all the components to prototype on the go, or to simply keep your makerspace ne...
By: BradB5

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Tue, 28 Apr 2015 09:59:08 PDT
Wire Maze! http://www.instructables.com/id/Wire-Maze/
Wire Maze! - More DIY How To Projects]]> http://cdn.instructables.com/F4F/V1YF/I8YBOJHB/F4FV1YFI8YBOJHB.SQUARE2.jpg http://cdn.instructables.com/F4F/V1YF/I8YBOJHB/F4FV1YFI8YBOJHB.SQUARE.jpg http://cdn.instructables.com/F4F/V1YF/I8YBOJHB/F4FV1YFI8YBOJHB.SMALL.jpg The Oakland Toy Lab If you loved the game "Operation" as a kid, and want to continue on your path of supreme hand-eye coordination, give this buzzing electronics project a try. What's great is you can change the path every time, anywhere from novice post-bac medical school applicant to the manual dexterity of Dr. Octop...
By: The Oakland Toy Lab

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Mon, 27 Apr 2015 14:49:37 PDT
battery clip LED tester. http://www.instructables.com/id/battery-clip-LED-tester/
battery clip LED tester. - More DIY How To Projects]]> http://cdn.instructables.com/F4H/1YEB/I8OBDUAP/F4H1YEBI8OBDUAP.SQUARE2.jpg http://cdn.instructables.com/F4H/1YEB/I8OBDUAP/F4H1YEBI8OBDUAP.SQUARE.jpg http://cdn.instructables.com/F4H/1YEB/I8OBDUAP/F4H1YEBI8OBDUAP.SMALL.jpg louisc2 have you ever put together a circuit and after finishing you find your LED doesn't work? well with this Instructable that will never happen again! I present to you the Battery clip LED tester. Components: Components: female header pins 1k resistorperfboard9v battery clipTools: soldering ironsolde...
By: louisc2

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Sun, 19 Apr 2015 06:09:38 PDT
Circuit Tiles! http://www.instructables.com/id/Circuit-Tiles/
Circuit Tiles! - More DIY How To Projects]]> http://cdn.instructables.com/FCI/WTYJ/I8K13MM4/FCIWTYJI8K13MM4.SQUARE2.jpg http://cdn.instructables.com/FCI/WTYJ/I8K13MM4/FCIWTYJI8K13MM4.SQUARE.jpg http://cdn.instructables.com/FCI/WTYJ/I8K13MM4/FCIWTYJI8K13MM4.SMALL.jpg The Oakland Toy Lab For all the wee Edisons and Teslas to be, circuit tiles are the best! These are a great way to introduce people to circuits in a fun, ridiculous, iterative way. This is great for just one person exploring or an entire class working together. And your collection can keep growing over time! It's like ...
By: The Oakland Toy Lab

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Thu, 16 Apr 2015 11:29:11 PDT
Basic Electronic Amplifier 9v To 12v Cigar Box Closed Guitar Amp http://www.instructables.com/id/Basic-Electronic-Amplifier-9v-To-12v-Cigar-Box-Clo/
Basic Electronic Amplifier 9v To 12v Cigar Box Closed Guitar Amp - More DIY How To Projects]]> http://cdn.instructables.com/FPQ/IGCJ/I8H6DSGV/FPQIGCJI8H6DSGV.SQUARE2.jpg http://cdn.instructables.com/FPQ/IGCJ/I8H6DSGV/FPQIGCJI8H6DSGV.SQUARE.jpg http://cdn.instructables.com/FPQ/IGCJ/I8H6DSGV/FPQIGCJI8H6DSGV.SMALL.jpg ️Roy Glen Gilliam Pick Out Your Cigar Box I'm using a vintage Stand-up Display Cigar Box. I bought this years ago, but I'm also using another box inside this one to seal it up. The box I'm using inside - I bought at a local cigar shop for $1. I'm also using an air filter from my work - when the ambulance is servi...
By: ️Roy Glen Gilliam

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Wed, 15 Apr 2015 20:33:07 PDT
Projects from an Old Casette Player http://www.instructables.com/id/Projects-from-an-Old-Casette-Player/
Projects from an Old Casette Player - More DIY How To Projects]]> http://cdn.instructables.com/F70/0MZL/I8H6AYXA/F700MZLI8H6AYXA.SQUARE2.jpg http://cdn.instructables.com/F70/0MZL/I8H6AYXA/F700MZLI8H6AYXA.SQUARE.jpg http://cdn.instructables.com/F70/0MZL/I8H6AYXA/F700MZLI8H6AYXA.SMALL.jpg Imetomi Hi! Did you ever thought that you can build many gagdets from an old electronic device? Yes, maybe. Now I'll show you that what can build from an old casette player/radio. I made an FM transmitter bug and a wind turbine battery charger. The most of the parts are from the casette player. I only neede...
By: Imetomi

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Wed, 15 Apr 2015 04:42:12 PDT
Solar powered air conditioning unit. http://www.instructables.com/id/Solar-powered-air-conditioning-unit/
Solar powered air conditioning unit. - More DIY How To Projects]]> http://cdn.instructables.com/FH0/6RUS/IAP6XEL3/FH06RUSIAP6XEL3.SQUARE2.jpg http://cdn.instructables.com/FH0/6RUS/IAP6XEL3/FH06RUSIAP6XEL3.SQUARE.jpg http://cdn.instructables.com/FH0/6RUS/IAP6XEL3/FH06RUSIAP6XEL3.SMALL.jpg Mjtrinihobby Most people would like to have their homes cooled by the strength of sunlight which ironically causes heat. How to achieve energy efficient cooling of your abode by harnessing sunlight? I have successfully implemented a solar powered air conditioning unit for my living room which has been working gr...
By: Mjtrinihobby

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Tue, 14 Apr 2015 16:46:55 PDT
Foam RC Plane Building Guide http://www.instructables.com/id/Foam-RC-Plane-Building-Guide/
Foam RC Plane Building Guide - More DIY How To Projects]]> http://cdn.instructables.com/FOQ/9AQV/I88LQDUB/FOQ9AQVI88LQDUB.SQUARE2.jpg http://cdn.instructables.com/FOQ/9AQV/I88LQDUB/FOQ9AQVI88LQDUB.SQUARE.jpg http://cdn.instructables.com/FOQ/9AQV/I88LQDUB/FOQ9AQVI88LQDUB.SMALL.jpg Dhipak Bala **All of my RC and robotics projects can be found here: https://projectinkerer.wordpress.com/**At this project's inception, I was inspired to design and build an inexpensive RC plane that I could fly for enjoyment and perhaps in the future stick a camera on. As an aspiring engineer, the idea of buil...
By: Dhipak Bala

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Thu, 9 Apr 2015 20:27:33 PDT
DIY Constant current load http://www.instructables.com/id/DIY-Constant-current-load/
DIY Constant current load - More DIY How To Projects]]> http://cdn.instructables.com/FMQ/1I87/I8BGG1YE/FMQ1I87I8BGG1YE.SQUARE2.jpg http://cdn.instructables.com/FMQ/1I87/I8BGG1YE/FMQ1I87I8BGG1YE.SQUARE.jpg http://cdn.instructables.com/FMQ/1I87/I8BGG1YE/FMQ1I87I8BGG1YE.SMALL.jpg GreatScottLab In this small project I will show you how to make a simple adjustable constant current load. Such a gadget is useful if you want to measure the capacity of chinese Li-Ion batteries. Or you can test how stable your power supply is with a certain load. Let's get started ! Watch the video! The video...
By: GreatScottLab

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Fri, 10 Apr 2015 07:50:09 PDT
Super Capacitor Battery for Mouse http://www.instructables.com/id/Super-Capacitor-Battery-for-Mouse/
Super Capacitor Battery for Mouse - More DIY How To Projects]]> http://cdn.instructables.com/FWH/94OK/I84BCN44/FWH94OKI84BCN44.SQUARE2.jpg http://cdn.instructables.com/FWH/94OK/I84BCN44/FWH94OKI84BCN44.SQUARE.jpg http://cdn.instructables.com/FWH/94OK/I84BCN44/FWH94OKI84BCN44.SMALL.jpg nomierinies Let's make unlimited times and quickly chargeable Supercapacitor battery for mouse. What we need:Supercapacitor (I use 5.5v 1F but bigger is better)Wires & stuffVoltage regulator (In my case 1.5v 1A because my mouse work on one AAA battery)Power supply 5.5v (I use this adjustable from ebay) Sc...
By: nomierinies

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Mon, 6 Apr 2015 11:00:35 PDT
Cellphone Charger http://www.instructables.com/id/Cellphone-Charger/
Cellphone Charger - More DIY How To Projects]]> http://cdn.instructables.com/FZV/FFYV/I7XQYGJ7/FZVFFYVI7XQYGJ7.SQUARE2.jpg http://cdn.instructables.com/FZV/FFYV/I7XQYGJ7/FZVFFYVI7XQYGJ7.SQUARE.jpg http://cdn.instructables.com/FZV/FFYV/I7XQYGJ7/FZVFFYVI7XQYGJ7.SMALL.jpg hobbyman As the functions of cell phones increased astronomically, so their power requirements. Nowadays a clever :) phone which is purchased new can hardly stand working for 1-2 days and their endurance even decreases as the battery inside wears down as it gets older. So many people are buying and using bat...
By: hobbyman

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Tue, 31 Mar 2015 13:35:56 PDT
Emergency D Battery from 4 AA's http://www.instructables.com/id/Emergency-D-Battery-from-4-AAs/
Emergency D Battery from 4 AA's - More DIY How To Projects]]> http://cdn.instructables.com/F17/NBTW/I7W1S2UH/F17NBTWI7W1S2UH.SQUARE2.jpg http://cdn.instructables.com/F17/NBTW/I7W1S2UH/F17NBTWI7W1S2UH.SQUARE.jpg http://cdn.instructables.com/F17/NBTW/I7W1S2UH/F17NBTWI7W1S2UH.SMALL.jpg jimmypat If you ever needed to fit a square peg into a round hole on short notice, then this Instructable is for you!With my parents over for the weekend, and the hour of midnight rapidly approaching, we needed to blow up the ol' air mattress and get to bed. But, lo and behold, one of the D batteries inside ...
By: jimmypat

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Mon, 30 Mar 2015 15:15:42 PDT
LED Poster with ATtiny45 Controller http://www.instructables.com/id/ATtiny45-LED-Poster/
LED Poster with ATtiny45 Controller - More DIY How To Projects]]> http://cdn.instructables.com/FH2/RRR5/I7SVWMO4/FH2RRR5I7SVWMO4.SQUARE2.jpg http://cdn.instructables.com/FH2/RRR5/I7SVWMO4/FH2RRR5I7SVWMO4.SQUARE.jpg http://cdn.instructables.com/FH2/RRR5/I7SVWMO4/FH2RRR5I7SVWMO4.SMALL.jpg comsa42 My highschool has a program where students can tutor other students. I got involved as a tutee, then a peer tutor. Everyone I've taught has found the program really helpful, so I decided to promote the program even further by building an LED poster!To control the flashing of the LEDs, this poster ha...
By: comsa42

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Sun, 29 Mar 2015 16:59:46 PDT
How to Protect any 18650 Cell http://www.instructables.com/id/How-to-Protect-any-18650-Cell/
How to Protect any 18650 Cell - More DIY How To Projects]]> http://cdn.instructables.com/FL7/B3B3/I7MXISX5/FL7B3B3I7MXISX5.SQUARE2.jpg http://cdn.instructables.com/FL7/B3B3/I7MXISX5/FL7B3B3I7MXISX5.SQUARE.jpg http://cdn.instructables.com/FL7/B3B3/I7MXISX5/FL7B3B3I7MXISX5.SMALL.jpg Imetomi In this instructable I'll show you a very useful life hack that is used to protect any 18650 cell. You can make it only with an old cell phone battery and with some wires. The Lithium ion batteries that are used in phones have a build in protection circuit, that automatically turns off if the voltag...
By: Imetomi

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Thu, 26 Mar 2015 10:58:28 PDT
the glowing egg http://www.instructables.com/id/Why-only-one-color/
the glowing egg - More DIY How To Projects]]> http://cdn.instructables.com/FCZ/V1BD/I88LLQVK/FCZV1BDI88LLQVK.SQUARE2.jpg http://cdn.instructables.com/FCZ/V1BD/I88LLQVK/FCZV1BDI88LLQVK.SQUARE.jpg http://cdn.instructables.com/FCZ/V1BD/I88LLQVK/FCZV1BDI88LLQVK.SMALL.jpg Thorsten Singer Thank You !!!so suprising for me, just get to the final with my glowig egg. Thanks to everyone here at instructables I can't belive just go so far with one of my projects. Hope I can show you more nice, funny, cracy, .... stuff soon.Just have to say Thank You to everyone who has voted for me...........
By: Thorsten Singer

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Wed, 25 Mar 2015 10:49:12 PDT