Need help with web script? Answered

I know a little about scripting web pages, but I'm mostly a hardware guy.  I need to figure out how to make certain text on a web page change based on where the client's location is.  (For instance, I need to say "serving (client town here) and the surrounding area since......." and I also need the phone number to change.  So far the best option I have come up with is creating a different web page for each town.  I know this script is possible, but I just don't know how to make it.  If anybody out there knows how to script this, I would help me a lot.  Thanks!

Question by thegeeke 7 years ago  |  last reply 7 years ago

Massive web made with packing tape

Design collective For Use/Numen used about 117,000 feet of tape to make this fantastic web in a former stock exchange building in Vienna. It's strong enough for people to walk on. In fact it wsa made for a dance troupe. “The installation is based on an idea for a dance performance in which the form evolves from the movement of the dancers between the pillars,” explains For Use’s Christoph Katzler. “The dancers are stretching the tape while they move, so the resulting shape is a recording of the choreography.” Check out the link for more pictures and a video. Designers Spin Spidey-Worthy Webs From Packing Tape via Neatorama

Topic by fungus amungus 8 years ago  |  last reply 8 years ago

Buddies, the social network in real life!

Hi friends! :D I'm starting a new project with a couple of friends: Buddies, a new idea of social network based on geolocalization. I would be glad if you'll have a look to our web pages, I'm actually following the desing/GUI of the whole thing. There's also a fill-up form in the landing page, so you can be contacted if you're interested in becoming a beta tester! Thank you :) Buddies landing page - click here! Buddies Facebook page - click here! Buddies Twitter page - click here!

Topic by Darthorso 4 years ago  |  last reply 4 years ago

home security system based on a gprs modem

Hello, I want to develop an ASP.Net web site using VB.Net for receiving data from a device. The device will send data to the server where the website is placed. My question is: can I write my script in VB.Net for getting the values from the device and displaying the same information into the web server database and how should i do this and also i want to do this through dynamic it possible..if yes then how will be the interfacing be done ? i have the code but im confused about the interfacing part... how do i interface with the gprs modem using j2me without using a pc...i want to use it to send a sms through the gprs modem in a home security system to a predefined mobile number... thank you...

Topic by hermionee 6 years ago  |  last reply 5 years ago

Finally, Javascript & DOM more powerfull than what I thought ...

.Hi ...I needed to quickly code a tiny tool-application, but I did not want to spend days and nights learning the API of a new GUI (under linux), neither I wanted to fight with usual C/C++ bugs, memory leaks and crashes, neither I wanted to learn a new scripting language like Python or Perl ...I wanted to do simple and fast, and if possible using my current knowledges : my webbrowser would do the GUI, and PHP would be my programming language.At first sight, I did not consider Javascript as a serious (or main) option, because I've kept very bad memories from Internet Explorer that I mistakenly considered as "the reference" ... But Mozila based browsers are more compatible with W3C than IE !So, finally, to my great surprise, I've made my app-tool 100% client side .......................... I don't even need PHP.However, when I run it on IE, it does not work as expected .....And my question is : for the sake of compatibility, what's the best strategy ?1) "downgrading" the scripts to make them compatible with every targeted web-browsers ?2) writing several version of the scripts, one for each web-browser ?Dilemma ... Dilemma ...

Topic by chooseausername 11 years ago  |  last reply 11 years ago

Web Hosting Help for a Non-Profit

Hi,So this year I joined a non-profit organization called The Student Free Press Group. It distributes a newspaper called The Independent about once every 2 months or so. Here is a little blurb about them. The Independent is a student-run, student-owned, student newspaper and non-profit organization. It is important for us to emphasize "student" because we are in no way affiliated with the school district or Memorial High School.Philosophically, The Independent strives to be an open forum for students to express their views without oversight from school or governmental authorities. While news articles are required to be objective, editorial opinions are not censored; inclusion in the paper is based upon the quality of the writing rather than the nature of the opinion. The Independent serves the community not only by providing a forum for expression but also by giving students an opportunity to develop skills in writing, reporting, leadership, and independent initiative by becoming writers or editors of the paper.The Independent was born during the 1990-1991 school year after a censorship dispute between the administration and the student-edited school newspaper, The Sword and Shield. The administration, once a staunch supporter of student journalism, began to exercise the powers granted to it by recent Supreme Court decisions and sought to review each issue prior to printing. After encountering fierce opposition to publishing a news article revealing sub-par minority grade point averages at the school, all but one member of the editorial staff of the official school newspaper resigned in protest and, the following year, began publishing The Independent. Since that time, The Independent has gained the readership and the respect of students, faculty, and administrators.So here is my task. I need to create a professional looking website for the newspaper. I'm already have a domain but I am looking for a good, free hosting provider.So I am looking for a free web host that will give us a lot of space and a decent amount of bandwidth. In return I will allow them to put ads on the site and in the newspaper which is distributed to about 1,300 people. So I'm wondering if anyone would be interested in sponsoring the site/newspaper. If anyone knows anyone who would be interested please give a link or there email.Thanks for your time,Joe Rowley

Topic by joejoerowley 10 years ago

Musician - let's collab on I'ble: make your tune mixable-from-phone

I've written a mobile-friendly web-based audio-mixing toy called SynPhonia. You can see a demo at (from computer or phone). In the demo, I used a sample pack by DJ Vadim  that's available under a Creative-Commons license. If you're a musician and you want such a toy for one of your tunes (because it's fun and because it promotes your music) - we can do this together and write an I'ble about it. If you have a web server that can run all the stuff we need (python cgi, sox, lame) - cool. If you don't - we can do it on my server (no charge. I'm only doing this for fun). Anyone interested? Note [This might be obvious to most of you, but just to be on the safe side]: Your samples will be distributed under one of the Creative Commons licenses (I recommend the by-nc-sa variety, but it's your call). One thing you can't do is use any of the *nd* (no derivatives) licenses, since derivatives are exactly what people will be doing with your music :) This means that people will be able to use your samples in their own music, but they'll need to give you credit (usually this is done by a link, and that's good for your SEO).  They should also conform to other conditions depending on the type of licnese you choose (e.g. you can limit this to non-commercial use by choosing one of the *nc* licenses). Bottom line: If you're too attached to your music to afford such conditions (or if your song is already copyrighted to a non-cc record label), this is not for you :)

Topic by thedod 8 years ago

Service that automates ordering all the parts for your Instructable?

Hey everyone, Sorry to spam the forum; just had a quick question. I am thinking of building a web-based tool that would allow you to drop the bill of materials from an Instructable in, and then other people could order everything at once when they wanted to build your kit. Do you think you would use something like this? What if it didn't have that feature, but it was just a web-based bill of materials builder where you can keep a nice-looking list, with sources, of all the parts? Thanks! Justin

Topic by justindunham 7 years ago  |  last reply 7 years ago

How possible would it be to build a pedal-powered mobile toast shop?

I am thinking to build a bike-with trailer that powers one or more toasters, by charging a battery then releasing that power. Do the electrical among you believe this is practical? Could there be enough lekky? What considerations should I have? Also - a lot of instructions for this on the web are based on US power supply. Does anyone have any links to UK based instructions.

Question by xhalmers_860 9 years ago  |  last reply 9 years ago

Instructable App don't work on Ubuntu

I logged in and went to start an instuctable.  I started with the first line to name the instructable, app won't accept text.  I tried Firefox and chrome, but still doesn't work.  I running on a Linux computer with Ubuntu. If the program is web based, why wont it work on my computer?

Topic by botronics 2 years ago  |  last reply 2 years ago

LED disk monitor

I'm thinking of making an LED based hard drive monitor that will show the % of free space. My thoughts are either an Electric Imp or a Spark Particle wifi controller and then some kind of OSX script that runs  on my server to read the disk usage and push it to a web server. I'll be using APA102 or LPD8806 strips. Any thoughts or suggestions? Cheers.

Topic by filthyPhil 3 years ago  |  last reply 3 years ago

Fusion 360 for 10.10 macs?

I'm trying to use Fusion 360 on a macbook running 10.10 Yosemite. I cannot upgrade OS and I cannot install Fusion 360. There is no web based options (Yes, Jon-A-Tron, I went to your link in previous posts... was only a file viewer). Any good alternatives or work arounds?

Question by craig.piscitello 11 months ago  |  last reply 11 months ago

Bringing 21st Century accessibility into the 19th!

Courtesy of Adafruit Industries, comes this awesome steampunk wheelchair, using their Arduino-based Waveshield for sound effects.  The creator, Daniel Valdez, has a Web site ( with some issues, but he does have photos and video on Flickr.  It is fully functional, using an 1875 Victorian rocker mounted on a Permobil C300 power chair chassis.

Topic by kelseymh 9 years ago  |  last reply 9 years ago

More patches up for grabs!

For no particular reason, I have created a set of patches based on the web comics Questionable Content and XKCD. Do you want one? Then tell me why you deserve one... Hiccup Update: I can't send patches until the image upload thingie is fixed (I only uploaded the picture of Pintsize when I wrote this).  Sorry.

Topic by Kiteman 8 years ago  |  last reply 7 years ago

MisterHouse home automation

"MisterHouse is an open source home automation program. It's fun, it's free, and it's entirely geeky. Written in Perl, it fires events based on time, web, socket, voice, and serial data. It currently runs on Windows 95/98/NT/2k/XP and on most Unix based platforms, including Linux and Mac OSX. It can talk, it can check your messages, control the lights, program your VCR, and what is best - it understands spoken commands. It can even track your car by interfacing to a TNC. And there are 600 users and 209 authors contributing to this project. Cool, eh?"

Topic by The G-Man 8 years ago  |  last reply 8 years ago

Has anyone found a way to download/view Hulu "type" videos offline?

I'm trying to see if anyone has figured out how download flash/web based videos. I'd like to download them so I can view them offline (while working out etc.).  I'm figuring folks have figured out a way to do this legally for personal use only?

Question by mattideas 9 years ago  |  last reply 7 years ago

Has anyone seen the tv show: Bar Karma ?

I am just curiuos....I got to see the first episode (on demand viewing, not when or where ever it aired originally).  If anyone has, your opinions, please. IF anyone goes to, and views episode one, be forewarned that the first minute or so of the video for the first episode, is NSFW.

Topic by Goodhart 8 years ago  |  last reply 8 years ago

What Switch Do I need? Answered

Hi all, I recently acquired one of these fans and wondered if anyone could advise on a reasonably priced switch that would utilise the 4 speeds. I have never had to wire one up before so any advice would be greatly appreciated. UK based, so something from this neck of the woods would be ideal, but hey beggars can't be choosers right :)

Question by Squibo 2 years ago  |  last reply 2 years ago

Contribute to a kids craft book

Hi all, I'm an editor at a London-based company and I'm looking for contributions for an alternative craft book for children called Making Stuff for Kids - it follows on from a book I did last year called Making Stuff (check it out on amazon or on our website Contributions are unpaid, but you will get a biog with any web-addresses or links you want to include. If you're interested, please e-mail me on: .

Topic by ZiggyHanaor 12 years ago  |  last reply 12 years ago

Quick rundown various Linux and BSD operating systems:

1.  Debian - one of the older base distributions and currently one of the most popular.  Uses the "apt" package manager for software installation.  Excellent server distribution. 2.  Fedora - the free community edition of Red Hat Linux.  Sponsored by Red Hat Linux.  Uses the "rpm" package manager for software installation. 3.  openSuse - sponsored by Novell, originally developed largely in Europe. 4.  Mageia - fork of an older distribution called Mandriva Linux. 5.  PCLinuxOS - also a fork of Mandriva.  Looks to provide out-of-the-box support for graphics and sound cards. 6.  Red Hat Enterprise Linux (RHEL) - based on Fedora, RHEL includes many enterprise-level enhancements and is supported Red Hat corporation. 7.  CentOS Linux - free enterprise-grade operating system that is built from the same source code as RHEL without the proprietary enhancements or support from Red Hat.  8.  Puppy - very small Linux operating system that boots the OS and applications completely into RAM.  Can operate on older computer equipment.  Excellent for use in emergencies and to recover data from hard drives. 9.  FreeBSD - operating system that is based on BSD code. 10.  Ubuntu Linux - easy to use operating system that is based on Debian Linux.  Supported by the Canonical corporation.  Ubuntu means "humanity to others".  Excellent server distribution. 11.  Linux Mint - currently one of the most popular distributions, based on Ubuntu Linux.  Looks to provides complete experience by including browser plugins and media codecs (ie: Flash) upon installation.  Excellent desktop distribution.  Also comes in lightweight editions for older hardware 12.  NetBSD - based on BSD code.  Can be run on a wide range of hardware.  Currently there are 57 different hardware architectures that can run NetBSD. 13.  OpenBSD - based on BSD code.  Source code built from the ground up with security first and foremost as the goal.  Ships "secure by default", that is, all non-essential services are disabled.  OpenBSD has embedded cryptography throughout the operating system; it utilizes OpenSSH, Pseudo Number Random Generators, cryptographic hash functions, cryptographic transforms and crypto hardware support. 14.  ClearOS - server and network distro designed for small businesses.  Based on Red Hat Linux.  Web-based interface controls anti-virus, anti-spam, VPN, content filtering, bandwidth manager, file services, SMTP services, print services, SSL certification, and web services. 15.  Kali Linux - distro that specializes in penetration testing and security auditing.  Over 300 penetration testing tools.  Based on Debian Linux. 16.  Lubuntu - lightweight version of Ubuntu Linux for older computers and netbooks. 17.  Gentoo - highly customizable distro that uses a package system called portage written in Python.  Mascot is Larry the Cow.

Topic by matt392 5 years ago  |  last reply 5 years ago

Make way OLPC, here comes the $12 NES clone (not Apple II)

Correction:The project is modeled not on an Apple II, but rather on an existing $12 NES game machine clone, called the "Victor."It's likely based on the rather infamous NES-on-a-chip based clones that have appeared in millions of joystick-based games and other knock-offs....ComputerWorld ArticleMIT: From the Boston Herald:"Derek Lomas, Jesse Austin-Breneman and other designers want to create a computer that Third World residents can buy for less than you probably spend on lunch."Yes, the same school that developed the famous OLPC (One Laptop Per Child project) is creating a clone of the venerable Apple II computer. Projected cost is $12 per computer.Designers plan rudimentary web access, games, and it will undoubtedly use some existing Apple II software. Immediately, the old Contiki operating system comes to mind....Original story, the Boston Herald website

Topic by gmoon 10 years ago  |  last reply 10 years ago

soldering alternatives - conductive glue, soldering paste ...?

------------------------------------------------------------ SOLDERING ALTERNATIVES - CONDUCTIVE GLUE/SOLDERING PASTE ... ? i am looking for a reliable, not-too-expensive alternative for soldering connections & found conductive glue/paste products as listed in the following; .... i assume that there is nothing that really replaces soldering but would like to know, if you probably tested any of these or may recommend a specific product suitable for "sticking" components onto pcb's ... any hint is highly appreciated! ------------------------------------------------------------ PRODUCTS;=oss solder paste/solder glue ... based on silver solder paste ... needs heat to harden out, cheaper than silver based glue "Wire Glue" ... does not need heat to harden out, based on graphite powder, cheapest of all i found so far ... selfmade, based on graphite powder ------------------------------------------------------------ TESTS/RATINGS/COMMENTS,21723 "Wire Glue" ... it's consistence might be too brittle, using additional expoxy might make up with this issue

Question by marc_is_curious 7 years ago  |  last reply 2 years ago

Sending data from arduino to the server?

Hi my friend, based upon ur reply,i have progressed my ideas..Now my project communicates with the html page->server-> per the instructions in the web page,the arduino will be the query is,i would like to send the values of sensors to the html page..but i dont want to use any additional shields like ethernet shield,etc..dono how to progress..pls help me as soon as possible..waiting for ur reply

Question by yogesmart22 7 years ago  |  last reply 6 years ago

Any recommendations for/against PDF to Word converters?

I need to convert an existing PDF (LaTeX source) document into MS Word format. A simple Google search (;=convert+pdf+to+word) brings up a number of options, both Web based and installable. Having never done this before, I have no sense of good, bad, dangerous, crappy, whatever.I'd very much appreciate input from any experts who have done this before (Jake?), especially Macophiles.

Topic by kelseymh 9 years ago  |  last reply 3 years ago

math fromula

Thought this would be an appropriate place to share some of what i thought was interesting information to do with the area of a triangle and how numbers co-relate. To round off a square to 100cm square, one quarter of that area is 25cm square, (10cmx10cm =100/(div)25%=25cm), the area of a  right angle triangle with sides measuring ~7.0710cm,  equals ~25% of 100cm square,  25cm square of area,  (7.0710/2=3.5355 x7.0710=24.9995205). 7.5937 if it is an equilateral triangle. it is a standard size i use,  a handy measurement if you use templates for construction because it in  some way represents a metric increment, thanks, Kim (the formula i used is half the base times the height,  unless im mistaken i recall that is the correct formula?  though i am not a full time mathamatician.  for the equalateral triangle i used a web based polygon area calculator.)

Topic by QSDR 6 years ago  |  last reply 6 years ago

Eric Wilhelm "What will users pay for" on O'Reilly Webcast Thursday, April 15, 2010

On Thursday, April 15, 2010 at 10 AM PT, I'll be doing a live webcast on O'Reilly's Meet Experts Online titled "What will users pay for?"  This is a lead-up to my Web 2.0 Expo panel discussion, What Our Users Will Pay For.  I'll be talking about Instructables' business model, and some of the things I've learned along the way about running a small company.  You can join for free, and send questions into the interviewer via chat.  I'll post a video for anyone who can't make the live event. Here's the description of the event: If advertising alone won't pay the bills and paywalls are tough to get right, how can web-based businesses make money? This is a question CEO Eric Wilhelm has already confronted. We'll dig into the Instructables model and consider potential solutions in this video Q&A.; Hopefully see you there!

Topic by ewilhelm 9 years ago  |  last reply 7 years ago

RIFD / WIFI locator?

Does anyone know a system or how to construct an RFID / WIFI based locator system? I would think that an old dual antenna wireless G router could be used in combination with an RFID tag.  So when the tag is moved to a new location within range of the router the location will be saved or displayed on the computer screen.   I thought that having a system like this would be great for keys, animals, phones, babies, pills, etc.   Here is one example application: Where are my keys?  - open the web browser and retrieve the approximate location where the keys were last moved.  They are in between the sofa cushions. 

Question by baudeagle 4 years ago  |  last reply 4 years ago

Has anyone found a way to sync a Samsung Pixon with a Mac - iSync doesn't work.?

I've swapped my old Samsung D900 for a Pixon, mainly for the 8mp camera. I've managed to get my contacts onto the Pixon via repeated Sim card copying but I used to be able to sync both contacts and calendars using iSync over bluetooth but it doesn't work with the Pixon. Ideally it needs to be a non web-based technique because I have very little phone signal in the remote rural location where I live and the Pixon does not connect via wi-fi.

Question by bluehook 10 years ago  |  last reply 9 years ago

Web 2.0 Expo Ignite Talk: Budding engineers design, build, and share their rubberband-powered creations on Instructables

On Sunday, April 15th at the Web 2.0 Expo Ignite session, Christy gave a great 5-minute talk titled "K'Nex Guns: Open-Source Hardware on Instructables: Everyone wants open-source hardware, but how do we get there? A group of K'Nex gun-building kids has actually done it on Instructables; I'll explain how." It was fun, people liked it, and she was asked to give it again today during the Wednesday Keynote presentations of the Web 2.0 Expo.In light of tragic events at Virgina Tech, we wanted to reaffirm our message and ensure that no one mistakes it as glorifying violence. The community that has formed around rubberband-powered K'Nex guns is a positive community. They are using their energy to build, document, collaborate, and share their ideas. They help, support, and encourage each other. They innovate on each others designs, and are meticulous about sharing the credit. These are great qualities we respect and encourage. So, we ask you to look beyond the surface and past the rubberband-powered guns to what's beneath. The users' gun fascination will fade with age, but the underlying positive qualities instilled by this community will not. The skills they're building here are exactly those required for a successful engineer, and for a responsible, mature member of the innovation community. We're against violence, but for innovation and design and creativity.One of the chief reasons we started Instructables was because we saw a community growing and thriving around open-source designs for kitesurfing. The K'Nex community is very similar and grew organically, so we wanted to highlight it and share our insight into it. Check out the slides from Christy's talk, here in the attached PDF, and links to some of the things mentioned:The longer user-innovation talk that this talk is based on.KILLERK's K'NEX GUNtoulvus's Making 3d knex models using mlcadmepain's knex tripwire, huge knex crossbow, and XW30K 8-1/2 cm shot ShifleMost Innovative K'nex Gun Design Contestoodalumps's Knex Machine GunTrainman 2000's The VORTEXInnovative Knex Guns groupNo guns K'Nex groupThe K'Nex projects are impressive and inspiring, but Instructables is the platform for for a wide variety of great projects and ideas. Check out some of the other projects on our site: We have other great communities building around bikes, boat building, homemade gifts, micro-controllers, recipes, recycled materials, and many more. Join in, learn something, and share your knowledge with the community. Enjoy your time here on Instructables.Added: Thanks to Fumi Yamazaki for letting me link to her video, which includes a brief hello to her Japanese audience (taken at the end of the conference) then a little bit of my talk

Topic by ewilhelm 12 years ago  |  last reply 12 years ago

Carmen Miranda Hat

I am attempting to be Carmen Miranda for Halloween, and there is surprisingly very little on the inter-webs on how to make a Carmen Miranda hat.  I am thinking about trying to paper mache a base, something that resembles a witch hat, from which I can glue/wire fruit on it, and wrap a scarf around the base. But I am worried that this will be too flimsy and/or not stay on my head. Can anyone think of a good base that I could potentially buy from a craft store, or Halloween store? I was thinking a Dunce hat, but I think that could be too high.  Any feedback would be appreciated.  Thanks, M PS. I am anti chin-strap.;=1&hl;=en&biw;=1280&bih;=685&tbm;=isch&tbnid;=1rub9hupw3iUnM:&imgrefurl;=;=dTe877k4Z4IWYM&imgurl;=;=260&h;=475&ei;=DJCYToeBOM-NsALXhaysBA&zoom;=1&iact;=rc&dur;=186&sig;=118241885992139910113&page;=1&tbnh;=156&tbnw;=86&start;=0&ndsp;=20&ved;=1t:429,r:0,s:0&tx;=28&ty;=90

Topic by MorganCrane 7 years ago  |  last reply 7 years ago

High-Tech Surfboard Made from Cardboard

Instead of the traditional methods, this surfboard is based on a core that's made up of nearly 400 pieces of cut cardboard that intersects and is then coated with fiberglass and resin. So far it's only a one-off, but more will surely be made.When it came time to replace his old surfboard, Mike Sheldrake decided to build his own. But the former Web programmer didn't have the sculpting skills to carve one out of foam the way professional builders do. So he used 3-D modeling software to design a snap-together deck that's as sturdy as a conventional model and performs just as well, made from the cheapest material he could find: cardboard. link

Topic by fungus amungus 11 years ago  |  last reply 10 years ago

What kind of Pump do I need for Hydraulic movement in an animatronic puppet.?

I want to build a Hydraulic-based animated figure. Heck, I want to just build a small frame with a single moving piece and actuate it with Hydraulics. The trouble is, information on Hydraulics for hobby robotics/Animatronics on the web is pretty thin. I've found quite a bit of Servo related stuff, a little bit of Pneumatic stuff, but so far I haven't had luck finding a good tutorial on automated Hydraulic animation. Truthfully, I need information on the whole picture, but I understand the basics of getting a cylinder to move and how to set that up. I know how to do it with Pnuematics. Air is not quite power/accurate enough for what I want to do. I want Hydraulics. Ideas?

Question by aarone 10 years ago  |  last reply 3 years ago

Academic Research on the DiY Community

Hi Everybody:My name is Ben Shultz and I'm a PhD student in Geography at the University of Tennessee (check out my department's page here: Just wanted to post here one more time to ask you to participate in my short survey for research I'm conducting on DiY communities. It takes less than ten minutes, is completely anonymous, and is for academic research only. Many of you already have participated and really appreciate it! If you haven't yet, below is a little blurb about my study. Link to survey: for your time and happy Mother's Day!Overview:In academics we have traditionally viewed innovation and creativity from the perspective of a large corporation. But we have overlooked the incredibly innovative and creative ideas that come out of the DiY community.With its substantial web presence and an ethos based on sharing and repurposing knowledge, the DiY movement changes how and where innovations come about. Rather than protecting innovations or charging for access, the DiY community freely reveals designs from start to finish on the Internet. The non-hierarchical, open manner in which creative media are produced in this setting democratizes the innovation process and opens creative pursuits to a geographically distributed public.As part of my research, I'm conducting a simple web-based survey to get an idea of where makers are (I'm in geography after all!), how they share knowledge, and what influences their creative endeavors.With my dissertation, I plan to reciprocate the DiY ethos and keep my research as open as possible. I am keeping a blog of all my research progress, including write-ups and aggregated results, and inviting anyone interested to use the information. You can check out my blog, DiY Dissertation ( I hope to offer you back useful and interesting information on both the research process and the DiY community.

Topic by bshultz1981 10 years ago  |  last reply 10 years ago

need help on 555 110v timer.

Hey guys w up? i`m asking for help, i`m trying to develop (i have one, similar) a 110 v timer based on the 555 (or any other) i have seen many timers on the web but they run on 9v batt and i do not have room for the transformer , can u help me ??? all (just nothing) all i need is the electronic diagram . i need the timer to work on 110v and run two different cycles a: 90 seconds b: 180 seconds and cut the power. (untill you press the push button again) i have an electric diagram. tx so much. if you need help w something (i`ll try to help you if i can) even if you can`t help me ..ask e have nothing to loose.

Topic by scopevisions 10 years ago  |  last reply 10 years ago

Joining carpet pieces

I'm looking for ideas on how carpet pieces might be joined together into a whole (e.g. rugs made from carpet samples). The gaffer tape solution which is posted all over the web in tutorials isn't strong, only lasts a few months and doesn't work well with small carpet pieces.  I've successfully sewn carpet piece in the past with fishing line (so the stitches are strong and invisible) however this technique only works well with larger pieces due to the time it takes and amount of work.  Has anyone here tried any other techniques and been successful with both large and small carpet pieces?  My other idea was to use wood glue to glue the pieces to a hessian sheet.  I haven't tested this but the hessian base on most carpet pieces should merge well with the hessian sheet. thoughts or ideas appreciated.

Topic by garrettlynch 1 year ago  |  last reply 1 year ago founder validates veracity of Instructables

There is a web show called Diggnation. (You can also download it through Tivo). The show is two guys sitting on a couch, with laptops, talking about highly rated articles on The guys are Kevin Rose: founder of Digg, and Alex Albrecht: Kevin's co-host on "Screensavers" which ran on the defunct TechTV Network. They are both funny guys, talk freely - usually with the help of a few beers - and just have a lot of fun talking about these strange, cool, or funny articles. Warning: It is a web show so if you go there, realize you may hear the f-word and some topics are risquè. On Episode 234: "Why Your Mom Should Not Watch Diggnation" one story was "Best Man Rigs Newlyweds’ Bed To Tweet During Sex". At one point they question the veracity of the man's claim saying they think he may have just wrote the tweets, and not actually rigged the bed to send tweets. This portion starts around 41:00 Kevin: (maybe it is) "just writing, unless he is ultra geeky. Who is going to devise a pressure plate with the power to send out ..." Alex: "He based it on an article. He said 'Before I go any further I should say 90% (of the tech is ripped from ...' " Alex clicks on link Kevin: "Oh it's an Instructables article. Done. I believe it. " Alex: "The Twittering Office Chair" It was cool that he immediately believed it was real after finding out the tech came from Instructables.  

Topic by SFHandyman 9 years ago  |  last reply 9 years ago

Use old ipad as always-on wall mounted family organiser/info center

Hey everyoneI was looking at a bunch of instructables today for making a Magic Mirror, and I love the idea of making one. Could be a good info hub in my kitchen potentially, but then I figured that as much as I like the idea of building one, 1) I'm a little limited on time currently, and 2) I have an iPad (3rd gen, first one that got the retina screen) that really doesn't see much use now.So I figured that might be a good starting point until I have more time to build something from scratch, specially since it's touchscreen which is ideal for adding stuff to lists or amending things etc.I'm not worried about it being a mirror, but basically I want it to meet the following (approx) criteria:1) To remain with the screen always on - (think you can just set it to never lock in settings and this would do that?)2) To ideally be widget based content, to include such things as:WeatherA family based calendar (that individual calendars on other devices can link to preferably) Reminders Imminent events (for say the next 3 things in the calendar perhaps)Shopping listNow after some searching I can see there are quite a few family organiser type apps, but having gone through a bunch of them I can't quite find anything that suits quite what I had in mind because of the following sort of issues I've encountered:App needs to be on newer version of iOS (can't update this ipad to 10 or higher - it's forever to be on 9.x)Apps don't have weather and/or aren't widget based (or pleasing to the eye)Apps are for the iPhone not iPad, so don't look great.Don't let you change the interface/layout.So I've got tired of looking for the right app for this after setting up different accounts on loads of apps then finding they're not to my liking for one reason or another, and am wondering more if there's something like a web based tool that would give this sort of customisable functionality, or something I could install on my local network (even on my nas since that can run apps & services etc (synology diskstation)) that will give a local web page that the ipad could maybe just permanently display/interact with on safari or something?Grateful to hear what people would suggest for accomplishing what I want for this project. Maybe there's an existing app that can display modular/custom content, which would be ideal since it would keep the touch screen input for stuff like shopping lists etc?I'm going to mess about with Magic Mirror anyway and see what I can do with that, but appreciate any cool suggestions on different tools to try.Thanks! :)

Topic by Mr Joshua 1 year ago  |  last reply 1 year ago

Please help my dog rescue - Labradors and Friends, win $10,000

Hello, The dog Rescue I volunteer with is involved in a contest sponsored by the Petco Foundation.  Basically, you "Like" the Petco Foundation's Facebook page, then Vote for our rescue.  The top 10 rescues of the 100 in the contest will receive a $10,000 grant from the Petco FOundation <--- Just click this link I know this is a bit off topic for Instructables, but it would be a great help. Labradors and Friends is an all volunteer based, 501(c)3 non-profit group dedicated to rescuing Labrador Retriever and Lab mix dogs in Southern California.  Many of our dogs require surgeries or other medical care the far exceeds our adoption fee.  We rely heavily on donations and grants to cover our operating expense and care for these dogs. Robert Maudsley Labradors and Friends Dog Rescue Web: Facebook: Blog:

Topic by rsmaudsley 6 years ago

"Super-magnet ramp" is world's best visual illusion

The video below was awarded Best Illusion of the Year at this year's Vision Sciences Society meeting.  I originally saw this posted in Nature News: In a packed concert hall, Kokichi Sugihara wields a pickaxe and mimes a blow to the stage. "I am a miner, and I have a secret," Sugihara says, adjusting his hard hat and headlamp. "I have discovered a new super-magnet." A screen behind Sugihara begins playing a video. A cardboard structure appears, consisting of four ramps ascending to a raised platform. A hand places a wooden ball at the base of a ramp, and it rolls uphill, before stopping on the 'super-magnetized' platform. As the same trick is repeated for the other three ramps, the crowd lets out an "ooh". Thanks to Kiteman, here's the author's own Web site: Image and video from Koichi Sugihara, Meiji University.

Topic by kelseymh 9 years ago  |  last reply 9 years ago

How does the 2-Pole DIP switch on version 13 ESP82266 Arduino expansion board work ?

Hi, I bought a kit that uses a version 13 ESP8266 Arduino expansion board (shield). That version 13 is not a standard ESP8266 board. It has an unusual 2-pole DIP switch on it that can be set to "ON" or "1-2". I need to understand what the 2-pole DP switch does and I need to understand the electrical connections it is connected to. The information on the makers web-site is not very clear.  ( see ) There are many instructables about the standard ESP8266, but I cannot find any details about that DIP switch in a version 13 ESP8266 arduino expansion board. Can you please tell me where the DIP switch on the version 13 board connects to  - the pin connections - and why it is needed. Thank you

Question by agribot 1 year ago  |  last reply 1 year ago

Fan needs 12 volts at .44 amps. How can I limit the current to .44 amps from 2 amps, without losing the 12 volts? Answered

I am trying to power a fan that needs 12 volts at 440 milliamps. I have a wall-wart transformer that is 12 volts, 2.0 amps, and I many components. I have thermal compound,  heat sinks, resistors, 12 volt and lm317 voltage regulators. So, how can I limit the current to 440 milliamps from 2.0 amps, without losing the 12 volts? Also, I tried a resistor at 33 ohms and it burnt out. Thank you, Jeremy (Please note: I am teaching myself electrical engineering, I have not taken physics yet. My knowledge is based on sever books, web resources, and hundreds upon hundreds of youtube videos)

Question by JBronen 6 years ago  |  last reply 8 months ago

Easy automated method to find chronological age of an integrated circuit design? Answered

This is not a question related to a homework or career assignment. This question is an existential question. Specifically, the thing that I am wondering if it exists, or not, is an easy and automated method for finding the chronological date, e.g. a year, Anno Domini (AD) or Common Era (CE), when a named integrated circuit (IC) was introduced.  Preferably this method exists in the form of a free resource on the Web. As an example, the well known 555 timer IC was introduced in the year 1971, and I am reasonably confident that was the year, because the Wikipedia article titled "555 timer IC", contains the words: "Introduced in 1971 by American company Signetics, the 555 is still in widespread use..." And I assume that statement is totally true, because if I can't trust the people who edit Wikipedia, I mean, who can I trust? ;-) Unfortunately, Wikipedia does not have a fact-filled article for almost every IC every sold.  In contrast, a place like has data sheets for almost every IC ever sold, but, it turns out, the data sheet does not always reveal the year the IC was introduced. To clarify this further, the thing I really want to exist, would be like a web site, with a name like:, or, or etc. (Please note that none of those URLs point to actual existing web sites, at the time of this writing.) Moreover, I am fantasizing this web site would contain a form, for to enter the name of the IC to look up, and then after hitting the "Submit" button, it would magically tell me what year that IC was introduced to the world, and maybe also which semiconductor company gave birth to it. As some example input and output, the query NE555 would return:  NE555, 1971, Signetics(r) As an additional twist to this fantasy, the query, LM555, would return the same thing, and this magical web page would like, know, that LM555 was a later version of the same IC, except produced by a different manufacturer, namely National(r); i.e LM555 was National's version of the 555 timer . If you have read this far, I congratulate you!  And I appreciate your eyeball time! If you are wondering about my motivation for this question, it is just that think the year an IC was introduced would be a very useful metric, like for answering more specific questions, like: The SG3524 and LTC3780 are ICs used for making switchmode power supplies.  Which of these ICs is more modern? I.e which IC was introduced latest? It turns out, the answer to this question is: The SG3524 is older (introduced first).  The LTC3780 is younger (introduced second). The SG3524 was introduced (I am guessing) in 1977, and that guess is based on some cryptic scribbles in a data sheet for the SG3524, published by Texas Instruments(r). The exact characters were: "SLVS077D – APRIL 1977 – REVISED FEBRUARY 2003" and I am just naively interpreting that blurb to mean the SG3524 was introduced in 1977. Regarding the LTC3780, I think it was introduced some time in the 1990s.  Looking at its datasheet, from Linear Technology(r), I could not find an obvious description of what year it was first introduced, but the first page mentions some US Patent numbers, and looking up those patent numbers, gives dates circa the early 1990s. So the LTC3780 is the younger than the SG3524. However to find that answer, I kind of had to do a bunch of reading of datasheets, and US Patent numbers, and that method took a little bit of work. My question:  Is there an easier way to find out how old (or young) an IC is?  More specifically is there an existing resource on the Web, like a free database, or a IC history site, or something where I can essentially "look up" the year an IC was introduced. By the way there is no absolutely zero urgency attached to this question.  So please answer if you feel like it,  and don't if you don't. I thank you for reading this.  My name is Jack A Lopez, and I approve of this message.

Question by Jack A Lopez 3 years ago  |  last reply 3 years ago

Help with On-Line Indicator for Jabra GN8530e headset

I have a Jabra GN9350e headset that I use at work, both with my desk phone and USB on my workstation. Jabra sells an on-line indicator (, but it's just a plastic stick that lights up at the top. No one will understand what it is, or what it means. I intend to build an LED box that says something to the effect of 'ON A CALL' with a chasing border to get attention and deliver the message that, well, I'm on a call. The tricky part for me is that I can not tell what type of connection is used to connect the device to the base station. I know it is a 2.5mm TRS connection, but am unsure if it is stereo or mono flavor. I am also unsure what the actual signal would be - is the sleeve is ground, tip signal, etc. I have spent a few hours searching the web and found nothing. My end goal would be to build a plastic box to house the indicator assembly, with mirrored plastic on the front so that when the indicator is off it would appear to just be a black box. When active, there would be a chasing light border (two or three LED sequence, just regular chasing lights), and a solid on field in the middle with verbage. I'm good with a soldering iron, but new to this kind of build. If someone could assist / recommend how to proceed in building the circuitry that could connect the LED's together (sure I can find that information on this site elsewhere) that would be nice, but primarily I would need help interfacing the indicator with the headset base station. Thanks!

Question by jon.hazlett 8 years ago

Spoon marks on ceramic mugs.? Answered

Ok I will admit I haven’t really looked around the web too hard to find a solution for this but then why go to all that bother when I can give you guys the pleasure of flexing the knowledge muscles. I like a mug that is a bit of fun, I have Taz ones, Carry on movie ones, huge ones & now I have a saucy captains mug with a long row on rosy round bottoms on it. I have to use this particular mug at the moment because our new kitten 'ible loves to play on the window sill right alongside where my mug always sits while I am working on the laptop, the wide base of a captains mug is the only one in the house the kitten cannot tip over :-) The problem is that our stainless steel spoons leave unsightly grey marks on the glaze when the tea is stirred; I have tried removing them with a scourer to no avail & it now really getting on my pip :-( I know the chances are it is because of the inferior glaze on cheap mass produced ceramics but that doesn’t help me get rid of them. Any ideas folks?

Question by Nostalgic Guy 8 years ago  |  last reply 3 years ago

Free Instructional Illustrations

I want to create some instructional illustrations for an instructable to be published here. Who's? I still don't know. There will be no cost to it. Just tell me about the instructable that you are working on so we can work through it. How does it work The illustration will be based upon a photo. You will take a picture that you want to use in your instructable and I will vectorize it by tracing over the image. Then, I will send the vectorized image back to you so you can publish it. Copyrights The work rights will be under the Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0). That means that I just need you to put my name on the credits of your post. I will use the images in my portfolio and/or will be published on my website. About Me I am a graphic designer and web developer that decided to join the United States Coast Guard a few years ago. I loved my job but I wanted to do something different and serve. I love what I do now but I miss designing so much that I've decided to do it for free. I guess is still serving the community.

Topic by cecilomar 6 years ago  |  last reply 6 years ago

How to measure length of an object approx 10cm long within +-1mm by non-contact method, e.g modded flatbed scanner?

Objects are slender and about 5-10cm long. If it helps they can always be mounted in same orientation by placing them in a long V shaped horizontal groove for example. I currently am using a laser beam mounted in moving carriage of a hacked inkjet printer. When beam is broken carriage stops and stepper motor steps are counted. However this method is ugly and slow. Something like a glass surface I can place the objects on (such as base of a hacked flatbed scanner) would be much better and wipe-clean. By lining object up in same direction each time, only one row of pixels would need to be read for example looking for a sudden change of contrast. Cannot find any way to easily intercept output of a scanner on the web however, especially a more manageable single pixel as it scans across the length of the scanner. Alternative might be photographic, for example camera mounted under the glass surface, or even a moving camera to eliminate parallax error. Any suggestions gratefully received no matter how crazy. Thanks in advance, John

Question by XenonJohn 7 years ago  |  last reply 7 years ago

Message to the K'nexers

A Poem I write to you of my observations About certain peoples' latest creations Yes this has been said before About this endless comment war The Jamalam and of course I.A.C Have seen the same things as me But they both wrote in regular style Which never stuck: not versatile So I write to you in poetry But the views are same, we all agree But my rhymes will stick into your brain The frontier in this web campaign See I notice that our knex community Lacks complete and utter immunity To spite, hate and lack of respect To many peoples' knex project It's mainly guns, but there are others too That are attacked in a ridiculous taboo That's taboo as in prejudice, you see It's gone beyond reasonable degree K’nex is a toy, don’t forget That fun really is the main object So why all the hate so suddenly It puts ya down, can’t you see? People like me, and naming others too Get ratings based not on what but who Why rate so low based on the person The situation is starting to worsen Insane Creator is one of those Who gets nought with a five in endless blows Upon his models: they ain't that bad It's who he is, it's really quite sad See why would you rate if you had no idea Of the thing you are rating: It's still unclear What would posess you to continue this theme In lowering someone's self esteem It's not just ratings, to me they ain't worth it It's the comments people think, write and submit "What the heck? This is so bad" to name an example But it's one of hundreds: a mere sample Regulars are praised, no matter what they do IAC; Killer~safe cracker to name a few True, they are good, I won't put them down But what about the other side of this web town? If I should have posted Mr. Doomsday Or put that cablecar on display They would never have got to where they are now Because I ain't as regarded, why should we allow? Allow for this rudeness and all this spite To continue all day and all through night We were never like this, can you remember? Time for a little bit of nostalgia? Once upon a time, the community was  Supportive and friendly simply because We wanted friendships and much better outcome And to spitefulness? we never did succumb! So I say please return to how we were Helping every other entrepreneur Not attacking others like wild bulls: Please, “show a smile instructables!”            -Lowney

Topic by Lowney 9 years ago  |  last reply 8 years ago

Hack my homepage?

Software security issues are often obvious to a second pair of eyes. I just posted the PHP scripts for my personal contact homepage as an instructable:Simple PHP personal contact homepage (web3.0!)Can you hack it? Preferably a copy on your local machine and not on my actual server... I deleted all my administration files and classes prior to making this post, just in case.I have two primary concerns:1. General PHP injection attacks. Proper handling and escaping of form data.2. The admin interface has a sessions based authentication mechanism. Login is compared to a MD5 hash of the password, then a session is created with an MD5 hash of the user's IP address. Each subsequent page load compares the authenticated session IP with the user's IP address (again, an MD5 of both). The goal is to prevent remote session stealing related flaws by tying the session to an (unknown...) IP address. Obviously if you have access to the local machine this is all moot, but there is little I can do about that. If an intruder were to get around the session authentication, they would be able to upload files just about anywhere on my server using the admin upload interface. This is a bit of a concern...I think in light of this, I'm going to add an option to limit the web admin interface to one IP address. My IP is fairly static, and if it changes, simply upload a new config file by ftp.

Topic by ian 10 years ago  |  last reply 10 years ago

How do I publish an Instructable and can make sure my work is not stolen for commercial products? Answered

Background: A nice member noticed an induction heater "kit" on Ebay and commented about it. After a lot of digging I found some pictures and technical details on the web - Google translate might be funny at times but was a real help for my bad chinese skills... Turned out the shematics for this heater are identical to my design. Sure they use a different mosfets and and create a nice looking circuit board for all but it does not change the fact that my design drives it. One chinese wholeseller is selling them in 500pcs bulk. Current problem: I am working on the next generation of my induction heater based on an induction cooktop. Since the power levels are much higher and more option possible I think it will be a great project loved by a lot of people. But I feel reluctant to publish it in a detailed form that can be used by everyone to re-create it as I fear it will end up on Ebay as well. So far I can't even estimate how much profit some chinese guy is making while laughing at me and for obvious reasons I would like to prevent that from happening to 2.0 as well... Is there any way to protect my designs or to get hands on the chinaman to strangle some money back out of him?

Question by Downunder35m 2 years ago  |  last reply 2 years ago