Power 2 LED's

Basically I want to power these 2 LED's from mains power for an Instructable, i have no idea where to start, please describe in laymans terms, any help greatly appreciated cheers

Posted by abitdifferent 7 years ago  |  last reply 7 years ago

Instructable missing from its category - https://www.instructables.com/id/Cleaning-up-your-PCB/

An Instructable I published last night is not showing up in its category. I cannot pull it up under "Technology" or using recent under "Soldering" where I had published it. The link I have for it is - https://www.instructables.com/id/Cleaning-up-your-PCB/. Is there something I need to do to try to republish it?

Posted by Dave-T 6 years ago  |  last reply 6 years ago

is there a new way to remove an ible from a contest?

I accidentally hit a contest link when publishing an 'ible.  I'd like to remove it from the contest.  Is there a way to do that these days?

Asked by cobinrox 4 years ago  |  last reply 4 years ago

3d ? How do I create a 3d fashion model from a photo?


Asked by Crystalflute 9 years ago  |  last reply 9 years ago

how to hang fabric

What is a simple way to hang fabric from bedroom ceiling?

Posted by pvt 10 years ago  |  last reply 10 years ago

rain barrel-wooden

How do I keep a wooden wine barrel I`m using for a rain barrel,from leaking?

Posted by trainman1197 6 years ago  |  last reply 6 years ago

Malware from the Ads?

I was browsing through Ibles' with Chrome, and it suddenly gave me a warning page telling me that: "The website www.instructables.com appears to contain elements from the site resolvenews.in, which appears to host malware". It's Imagine that it's from the ads because I visited the same page just seconds before, and when I went back to it I got the warning, hinting that something changed which was probably the ads. This really needs to be dealt with pronto, because we don't want anyone thinking Ibles' hosts malware when it's a totally reputable site. By the way, I put this in bugs because I wasn't sure where it should go.

Posted by dsman195276 8 years ago  |  last reply 6 years ago

Where to get 12 volts dc from your PC? Answered

I need to provide 12 volts DC to power a portable cooler that is used for travel. I would prefer to tap into my PC rather than use a wallwart. It seems that it was the yellow wire, anyway can I splice into the correct color and then ground to the chassis or to a black wire. Will I need a fuse?

Asked by billdan 9 years ago  |  last reply 9 years ago

ill from knowledge

Have you ever felt like knowledge is being crammed down your throat in School? Do you ever feel physically ill (like you're gunna thow up)? You're going to be tested later on something insanely complicated? Today, for me, in algebra 2, we are starting to learn about conix, and I feel ill. There are so many formulas, so many variables, so many variations, so much space to make a tiny error, I feel like I'm gunna die in math. Unless anybody knows an easy way to memorize a bunch of complicated formulas and how to use them ;) anyone ever feel ill from knowledge?

Posted by guyfrom7up 10 years ago  |  last reply 10 years ago

cick on follow will not respond

I click on follow  and favorites and get no response

Posted by FreeMan49 6 years ago  |  last reply 6 years ago

Printing Instructables intructions?

It seems every time I try to print instructions or download in PDF form all that happens is I am ask to sign in.  I'm already signed in.  Anyone have an answer?

Asked by lkrn13 6 years ago  |  last reply 6 years ago

Letter from the Editor: The Perfect Gift

Is it just me, or does it seem like time speeds up around the holidays? It doesn’t matter where I’ve been in life, time seems to enter a sucking vortex towards the end of the year. Every year I have plans to be more clever, more efficient, more thoughtful when it comes to the holidays, and each year I hear myself getting snappier and more impatient with the demands made upon me. “A Christmas list? I don’t have time to think about what you could give me to make my life easier!” That’s right, I’m an ungrateful troll. So in an attempt to keep this holiday-troll at bay, I make lists. I gather supplies. I get excited about what I can make for friends and family, and I set out to learn whole new skill sets to accomplish my goals. This year, a laser-etched arduino-powered cribbage board with hand-carved pegs! Knit socks in decadent colorways for everyone in the family! Infused liqueurs with home-grown fruits and herbs! But let’s face it, last year, I taught myself crochet so I could make a friend a beautiful sampler afghan. It’s almost done! It’s right next to half a sock I started knitting the year before. Oh, and I don’t grow fruit. Still, every year I pride myself in how this year I will make simple gifts for family and friends. I will eschew consumerism! I will not fall prey to deep discounts and crowded malls. I will not find myself waiting by door to accept delivery. And yet, come December 24, you’re likely to find me trying to hide my face in the endless queue at whatever store is still open at midnight, arms rammed full of manufactured goods that no one really needs or will remember, promising myself that next year I will start in May! Let’s get real. I didn’t start in May. I will probably never start in May. But maybe one day, I will learn how to think mindfully about the holidays and what they mean to me. I will think about my loved ones and what they mean to me. I will simplify and know that it is enough. I will learn that it is for the best of everyone that I find time to breathe and to let go. One thing no one wants for the holidays is a cranky troll – I have at least learned that. To be honest, I don’t remember the gifts I receive from year to year. What I remember is the time I get to spend with friends and family. So this year I will try to make myself a simple gift: the gift of time. Time away from a computer, away from responsibility, away from my self-imposed pressures. Time to spend with my loved ones. After all, isn’t that the best gift we can give? Ok, I’m still going to make something for everyone I can. I mean, c’mon, it’s what I do! But reflecting on this helps me remember the point. So how do you handle the holidays?

Posted by scoochmaroo 8 years ago  |  last reply 8 years ago

Login troubles

Hello. I apologize in advance for my English :-) I have the following problem. I discovered an interesting topic, and found that I did not authorize. Clicked "Login" - "Google +" and logged in. Then I went back to an interesting topic, and it looked like I was not authorized. So I was not able to add the topic to the collection :-( On other topics and the whole site everything looks fine (authorized).

Posted by ArtemR1 3 years ago  |  last reply 3 years ago

about a electircity problem ?

I'm trying to help my neighours & some of my relatives to invent some solar electricity inverters for our daily uses along with OUR native  country NEPAL to solve our NATIONS requirements. SO, will anybody gives us any IDEA or SOLUTIONS for free of cost ?? So, we can boost our Nation's PROGRESS in OUR own term and Conditions ??? if so  please send me an e-mail to my account. It's suleman#e-pao.every1.net

Asked by imgood 8 years ago  |  last reply 8 years ago

Protecting wood from heat from fire ? Answered

Hi all, I have been thinking of trying to set a small fire pit into a patio table. Its a fairly solid low "coffee table" type outdoor table so is capable of holding the weight, but im not sure if I can just cast a fire cement bowl to hold the wood/charcoal and set it into the table or would it eventually catch fire through heat transfer. Thanks in advance for any replies. 

Asked by Squibo 4 years ago  |  last reply 4 years ago

all from rosewood

If any one need rosewood for guitar manufacturing, feel free to ask me.

Posted by Deni Irawan 10 years ago  |  last reply 10 years ago

Entries from romania

Two years ago, the contests said that entries are accepted from any country That was all nice until i noticed that lately the contest policy has changed and there is only a small list of countries now. I've always hated the idea of country-exclusive stuff going on on the internet. Will it be possible in the future to submit entries from Romania too?  Also, based on what criteria do the admins here choose what countries can participate?

Posted by Vladmakesstuff 6 years ago  |  last reply 6 years ago

where are you from?

Asked by amirhdami 7 years ago  |  last reply 7 years ago

Unsubscribe from instructables

Please let me unsubscribe from instructables! thank you

Posted by knitsue 9 years ago  |  last reply 2 years ago

Participate from Brazil

I can not be living in Brazil? why? The design can be based on an existing idea on Instructables?

Posted by gustavol 6 years ago  |  last reply 6 years ago

From Anime to Reality

Someone was such a fan of Akira that they recreated Kaneda's bike from the manga and the movie. The bike is actually street legal and I'm looking forward to reports of it tearing it up in Neo Tokyo in vicious street gang battles. Extra bonus points if it manages to create light trails. Link

Posted by fungus amungus 10 years ago  |  last reply 2 months ago

Shipping from hobbypartz.com? Answered

I was going to order this rc set but cannot work out shipping to New Zealand, Christchurch. Can anyone help me? What is the shipping costs?

Asked by David97 6 years ago  |  last reply 6 years ago

LEDs from ebay? Answered

Is ebay a reliable source of LEDs? I bought a 3 watt LED off there once (http://cgi.ebay.com.au/3-X-POCKET-LUXEON-3-WATT-LED-TORCH-FLASHLIGHT-LIGHT-3W-/320514643442) and it had kinda poor performance...but I don't know whether it was because the torch itself was poor or if the fact that buying it from ebay was what made it bad. Any how, I'm looking for a 1 - 3 watt LED, and a (narrow beam) lens for it, and was wondering where I could get it all for under $10 (AU). WOuld ebay be a reliable choice?

Asked by .Unknown. 8 years ago  |  last reply 8 years ago

Shock from soldering gun? Answered

I tried a bit of soldering a few hours ago and as soon as I touched the hot tip with the solder wire,I got a shock!!(huge enough to be detected by a tester).....what shall I do?and could water touching the metal tip be a cause?

Asked by Adarsh_tronix 6 years ago  |  last reply 6 years ago

Need tips on starting Lantana from seed?

I have tried starting seeds in paper towels dampened and directly in potting soil inside the house and no luck starting them. Any ideas would be greatly appreciated. Thanks

Asked by eagleflyingoverhead1111 6 years ago  |  last reply 5 months ago

how do you extract oil from algae ?

Well been reading that algae is a renewable fuel but I can't see how ? So how do you get the oil that is discussed out of the algae? Is it one of these non sustainable horribly expensive and hideous to the environment jobbies that we are told will save the world?

Asked by strangebike 9 years ago  |  last reply 6 years ago

I need to remove spray paint from steel. Do you have any recommendations for me? Answered

I have an old steel toolbox that's been spray painted. I'd like to strip the paint off in the most efficient (and cost-effective) way possible. What say you, Instructables' Smart People?

Asked by bajablue 6 years ago  |  last reply 6 years ago

Boot from usb on a mac

Ok I need to know exactly how to (if possible) boot via usn on a mac ?

Posted by littlechef37 10 years ago  |  last reply 10 years ago

Boot from usb.....

Ok I have a server compaq proliant running UBUNTU ( and i love ubuntu but i need to boot into SLAX ) And I am trying to set my computer to boot from usb but it dosent have that option because the usb ports are pci cards. So my question is is there a floppy disk image or cd image that will tell bios to boot from the usb port ?

Posted by littlechef37 10 years ago  |  last reply 10 years ago

how do you separate golds from the celphone boards?

The board of any cellphone has tiny amount of gold in it .what is the step by step process you do and the chemicals you add to separate those gold from the cellphone board.

Asked by aambayec 6 years ago  |  last reply 3 years ago

Trailers From Hell - weekend watching

This site has a large number of movie trailers with commentaries. See Galaxy of Terror for a good one. (it won't embed as it's JWPlayer) I'm away for the weekend, bye!

Posted by lemonie 8 years ago  |  last reply 8 years ago

Contest is open to entries from India, but, what about Pakistan?

Hi, I like the way the "Instructables.com" has been emerged from starting with simple site to very up to date and helpful DIY guide to the obsessed DIY geeks like me. I really do appreciate the great job of the web site authors having this site evolved since! Since, I am from Pakistan, never submitted any entry yet, just avoid to fear that my entry will be wiped away, I want to ask the "Instructables.com" authros that could I submit my entry regarding Microcontroller contest? Is the contest entry from Pakistan is accepted here? Perhaps, the entries from our neighbor country INDIA are already accepted. Please reply ASAP. Thanks. M. Jawed

Posted by mjawed 5 years ago  |  last reply 5 years ago

helping a dedicated ECE student from the philllipines

Please somebody help me constructing a simple but an interesting tech for my up coming thesis in my college life. i need to have an idea to pass my course thx...

Posted by gabbzzz21 10 years ago  |  last reply 10 years ago

A home made electric shocker?

Asked by Gmendez2012 6 years ago  |  last reply 6 years ago

Burn Arduino Bootloader to Arduino, from Arduino

I want to burn the Arduino bootloader to an Arduino from an Arduino. I have an Arduino Duemilanove, and I want to take the chip(ATMega328) off, and use it in a circuit, without having to connect the whole Arduino to the circuit. However, I then have an Arduino with no chip. So, Can I just put a regular ATMega328(I know I can just buy one with the bootloader already on it, but I would rather do itmyself.) into the Arduino, connect it to the computer, and use the Arduino IDE(I'm using 0021- the most up to date one) to burn the bootloader to it? If so, how? If I cant, is there any way to easily do it with only another Arduino with the bootloader on it?

Posted by metrogdor22 8 years ago  |  last reply 8 years ago


Weissensteinburg, has taken the place of members who you wouldn't think to take over the forums... That list including, Goodhart, Killerjackalop, and GorillazMiko.

Posted by bumpus 10 years ago  |  last reply 10 years ago

where can i find a good site for instructions step by step to build a working tiny brick shooting AK-47 i need help!!

Would you help me by showing  me instructions for  building a step by step black pistol  i cant find any directions at all i need to find one that can reload and work. Can you help me out reply and tell me if you can help me or not.         from             Zreakeo                

Asked by zreakeo 8 years ago  |  last reply 6 years ago

How do I check the sd card reader slot on a compaq CQ 57 notebook computer that reads memory cards?

I am trying to import pictures to my computer from my cell phone! I am really struggling to get this task accomplished. How can I check to see if it is working properly? I connect my phone to the computer with a USB cord but the computer is not recognizing the device. What can I do to correct this issue?

Asked by SandraB46 3 years ago  |  last reply 3 years ago

I've put my tomato seeds in some pots and its been 15 days already, but I don't find a single seedling coming out.

I live in LONDON and at the moment its spring.

Asked by cheeksinpink 9 years ago  |  last reply 9 years ago

Dollhouse repairs

I bought a dollhouse made 25 years ago and someone put white oak tag like a poster board paper on all the ceilings of the rooms in the dollhouse and I want to take it off. It doesn't peal easily and right now it makes the rooms look tacky. Anyone have a suggest how I can get this paper off?

Posted by klugstar 2 years ago  |  last reply 2 years ago

I have certain power adapters used for printers and cellphone charging. Can i use them for creating LED lighting?

The available adapters are 240vac to : (i) 5V/1000mA DC, (ii) 9V/1A DC, (iii) 15V/1A DC, (iv) 3.7V/350mA DC, (v) 3.11V/850mA DC, 5V/700mADC, Please give me the details of circuits, how many while LEDs can be used and specigfications of resistors to be used, if any. Thank you.

Asked by arulamudhu 9 years ago  |  last reply 9 years ago

How hard is it to buy from amazon.co.uk from the USA? Answered

I'm trying to buy a textbook, and it is much cheaper on amazon.co.uk (UK version) or on amazon.ca (Canadian). Both sites have books cheaper then amazon.com (USA), and they both ship from the US (Georgia). Would I run into issues if I tried to order from these sites? I already have an amazon.com account, would that work?

Asked by CameronSS 9 years ago  |  last reply 9 years ago

What could this horrible chemical smell coming from the laundry room? Could it be plumbing?

I just bought this money pit of a house....I had this horrible smell coming from the laundry room. I bought new appliances and as soon as they removed the old ones the smell was gone. The new ones are hooked up and the smell seems to have returned. It's not as strong as it was before, but it's back none the less. I was hoping that the smell went with the washer but sadly it has not...I am wondering if it could be something in the drain? If it were the pipes wouldn't the entire house smell each time I used the water??

Asked by sherie 7 years ago  |  last reply 7 years ago

Reading 12 rows of data from an SD card every minute and storing the data into Arrays using Gboard pro Arduino

Hi, I am working on a project that measures temperature and current, store it on an SD card (csv file) and send them to a website. I decided to sample the signals every 5 seconds and store the data to the SD card using time interrupt (TimerOne). My plan is to sample and store data for 1 minute and then read the sampled data from the SD card and store them into 2 Arrays i.e Array1 for temperature and Array2 for the current and send the data to the website. Thus far I have managed to sample and store the data using the time interrupt. I also included a count variable in the interrupt subroutine so as to know how many times the interrupt has occurred. Since I am sampling and storing the data every 5 seconds and I want to read the data stored in the SD card every minute, so when count = 12 I would like to read  the last 12 readings (24 since its current and temperature ) and store them into 2 Arrays.   The problem I have is that I do not know how to read the data from the SD card and store them into two Arrays and would like your help. Note: the Reading of the SD card will not be in the Interrupt subroutine Any help or suggestions will be highly appreciated. Thanks Muundu

Posted by muundu 2 years ago  |  last reply 2 years ago

Does any body know how to call phone from pc?

I wan't to know have to call cellphones from the  computer from free , if anyone know any page or any thing else   

Asked by Mrfatjonable 6 years ago  |  last reply 6 years ago

110v to 12vdc conversion

Ok so long story short i want to make a serious home theater system. i have all the amps and speakers, but they are from a car. so i will need to run them from 12ish volts from my home outlets. so i cam wondering what kind of adaptor i should be making or using. i see pre-made ones that have an output of 12v with their amps ranging from 3-15 and watts from 3 to 300. i am no electrician and have little electrical experience, so i am wondering if i should go with more or less amps and watts, i dont need to fry anything as the amp and speakers i have are expensive! THANKS!  

Posted by mrmoose87 6 years ago  |  last reply 6 years ago

How can I make a wireless speaker out of an old cordless phone?

I have a cordless phone. I would like to play music through it. How can I hook up a headphone cord to the base of the phone so that the signal goes from my audio source through the headphone cord, to the base then to the handset?

Asked by sundet 7 years ago  |  last reply 6 years ago

Escape from Berkeley (by any non-petroleum means necessary)

Now that Convert your Honda Accord to run on trash has won the Craftsman Workshop of the Future Contest, it's prepped to race to Mexico for a chance of winning $10,000.00!Our friends at The Shipyard and ALL Power Labs are running Escape from Berkeley (by any non-petroleum means necessary), the premier alternative-fuels road rally, for the second year in a row. Last year they escaped from Berkeley and fled to Vegas; this year they're running for the boarder.The directions are laid out for you, all you need to do is get to work. Will you be there? If so, be sure to document your alternative fuel project on Instructables!A road race to Mexico, no fuel allowed.June 12-16, 2009Berkeley, CA - "Escape from Berkeley (by any non petroleum means necessary)" is a road rally of alternatively powered vehicles from Berkeley, California to the US-Mexican Border. Part engineering problem, part artistic opportunity, the rally challenges contestants to start their "engines" on something other than petroleum based fuel, and by any means necessary, cause their "vehicles" show up at the border five days later - using only fuels/power/motive force scavenged for free along the route.Last years inaugural race took us from the DIY oasis of ALL Power Labs in Berkeley, CA, to the consumptive excess of Las Vegas, Nevada. Returning to compete for the second running of the race will be 1st Place Rally Winner Jack McCornack from Cave Junction, OR and Runner Up Wayne Keith from Springfield, AL. Registration for new racers is now open. Interested racers should write jim@allpowerlabs.org.All types of vehicles are welcome. All schemes for non-petroleum based transport are encouraged. In short, everything is permitted - just as long as your "fuel" is from a non-petroleum based source, your acquisition of it does not require money, and you start the race with no more than 10kwh of it on board. The full field of power generation and conversion is open for scavenging and creative power hacking.DARPA had a Grand Challenge. . . the rednecks a Cannonball Run. . . and the Auto X prize is still a year away. So in the meatime, NASA scientists and junkyard fabricators will go head-to-head in a no holds barred battle of engineering prowess and creative excess. Hanging somewhat in the balance are bragging rights for saving the world. That, and a grand prize of $10,000.Schedule:June 12th - Race begins at ALL Power Labs in Berkeley, CA. End and overnight in Parkfield, California, the Earthquake capital of the world.June 13th - 2nd leg start at Parkfield. End and overnight at El Mirage dry lake.June 14th - Day off at El Mirage dry lake for landspeed trials. Some EFB racers to run speed trials.June 15th - 3rd leg start at El Mirage. End at Salton Sea, California State Recreation Area.June 16th - 4th leg start at Salton Sea. End at the beach where the fence goes into the ocean at the Border Fields State Park, US Mexico Border."Some entries will arrive at the start line with extreme technical innovation. Others will arrive with only creative excess. The best entries, as well as the likely winners, will need to arrive with both." - Jim MasonNew York Times article on last year's race.

Posted by StumpChunkman 9 years ago  |  last reply 9 years ago