Can I connect a cell phone to an old touchtone landline phone?

I want to connect my cell phone to an old 70's touchtone landline phone. Can this be done. I know you can connect a reciever to a cell phone but I miss the old touchtone keypad. Any advice?

Topic by paperseal   |  last reply


Hack A PCB

Is there a good way to solder or just connect wires directly to traces on a one sided PCB?

Topic by Doug Costlow   |  last reply


Im getting errors also (couldn't respond to that post)

Error 500 Java servlets yada yada .... a whole page full. Sept 7 , 4:45 EST , Mozilla

Topic by VIRON   |  last reply


MP3 hack problem PLEASE HELP!

I am replacing an old mp3 rechgargeable battery rated 3.7 volts with another one that is also "rated" 3.7 BUT when measured with the Vmeter the little bugger gives an output of 4.2, (too high) is there anyway we could add a led or some resistors to lower the voltage without draining the battery when the device is off? Thanks for any suggestions Cheers!

Topic by dejabox   |  last reply


Timer for solar LED dusk/dawn light

I needed a solar recharged, LED light that came on at night. I purchased a small LED light (rather bright with 6 LEDs) that has a solar cell, photo eye and 3 AA size rechargeable batteries. Made to clip on the patio umbrella, it is ssmall and light. The solar cell and photo eye are on one piece. The LEDs, batteries and circuts are on another piece. the two pieces are joined by a wire and are hinged together, allowing the unit to clip on the edge of the umbrella. I plan on removing the hinge and extending the wire to allow a two foot separation. I need to add a timer to this. Something that will turn off the light about 4 to 5 hours after it comes on. I assume it will be something that starts when the LEDs are powered up. Though I guess it may be something that is also triggered by an additional photoeye. Or maybe someone has a better idea? thanks

Topic by jnlvngstn   |  last reply


Mathematics

In one of my classes, it was necessary to review Laplace transformations. I realized that, after many months of not using it, I had become extremely rusty in integration by parts. Once I saw the basic idea, it slowly came back to me. Therefore, and I know the core audience isn't exactly appropriate, I would like to do a series of math related instructables AND I would like to have one or two collaborators. There's a few reasons I'm doing this.... 1. I feel the internets lack a resource with basic instructions of advanced mathematics (there's a few good resources, but it's mighty hard to find a "how do I do this" sort of thing). 2. Teaching is a great way to refresh the memory 3. The potential of comment feedback could be a good indication on what else should be covered. 4. Perhaps earlier basic introduction is useful to someone? Or not.... 5. The focus, in addition to how, is why such things are done. You won't find that on wikipedia :p Some topics to include (not necessarily individual projects) - and the projects would be something like How to solve _____. Basic definitions - notation Differentiation Integration Fundamental theorem of calculus Chain Rule Separation of Variables Integration by Parts ODE's Laplace transform Fourier Transform Anyone interested in collaborating - even on one subject? Then, anyone interested in looking at these? Not necessarily to learn how, but to see why it's done? For the why/application - I mean given a real world scenario... I promise, the application portions won't be boring (at least not for the nerdy type) ;)

Topic by trebuchet03   |  last reply


school project help

Ok i am in honors science in 9 grade and my teacher decicded to make u do a project. she told us to go out and watch the sunset (go down) and record the time and do a little scetch. but she didnt figure in tht someppl have lives and i have football practice. so is there any pattern tht the sun moves in so like i can watch it one day and approximate for the rest. i am really trying to balance everything and do my best but jut cant do it all. any help would be greatly appriciated

Topic by fretmelter   |  last reply


Anyone know how to program Thunderbird Extentions?

I'm working on an instructable about how to control computer programs with a cellphone via email. I know how to do it in outlook, but it isn't an option in mozzila thunderbird. I would like to write an extension to make it possible, but i really don't know how to program, and I have no idea where to start. If anyone would like to collaborate, or give me some pointers shoot me a message (hooloovoo33 at gmail.com). I can give more details if you're interested. Thanks -Zac A.

Topic by hooloovoo33   |  last reply


Rejoice! Google Reader Updated

Google Reader is now the best online feed reader ever! With it's new update you can now search feeds, and it gives you a real number not just 100+. I'm not sure what else has been added or fixed I just know that Google Reader is now, without a doubt, the best.

Topic by sardines454 


Duct Tape Bandages

I thought this was cool, duct tape bandages!3M Duct Tape Bandages-

Topic by youve 


Science Fair! Deadline Extended

The Science Fair! deadline has been extended to 11:59pm PDT, Sunday, September 2nd. That's this Sunday, folks- just an additional weekend.This was just our fault- we normally like to end on a Sunday night to give you the weekend to work, but got our dates confused when posting the contest. Use the unexpected weekend to put the finishing touches on your project, re-take some blurry pictures, work on your back-up project, or put together a quick contest entry with your kids for the Parent/Kid Collaboration prize!

Topic by canida   |  last reply


Automatic Button Pusher?

}}}ok... weird request, but desperetly needed! I work in a sales office where after hours first person who pushes the button when the RED light lights up gets the call and hopefully sale... I have learned that by repeatedly pushing the button you automatically get the call. I need help finding a device that constantly pushes the button for me (automatically). I have tried everywhere and am not creative enough to find the solution. The button is approx the size of a shirt button. Can someone please help me???

Topic by cramwop   |  last reply


usb face plate

Does any one have a line on a usb face plate for the front of a computer? im looking for some thing that would replace one of the removeable slot covers on any computer. i have a car stereo that has usb hook up for flash drives but it looks ghetto with a usb cable hanging out from the dash. i only need 1 usb slot so i guess i could just cut a multi port on up....if i could find one. i checked rs, tigedirect, bestbu, circuit city, and a few build your own comp shops and cant find the usb plate i need. i have a cable with the female end on it and i guess i just need on of these plates to plug it into and flush mount it to my dash steve

Topic by cruisermedic   |  last reply


Tube amplifier schematic

Does anyone have a schematic for a stereo tube amplifier, I just acquired a large quantity of tubes, a tube tester and some other assorted electronics from my grandfather. Ive always wanted to make a nice tube amp, now all i need is direction. It will be another 2 weeks or so before I can actually pick them up and start testing them so I was just trying to find some schematics to get me in the right direction. I figure this may even make a nice first instructable as long as im not completely lost in the schematic. Thanks smoke

Topic by smoke   |  last reply


Make Magazine: Copyright infringement? Or just bad manners?

I just got my copy of Make magazine through the door, issue 11.I had a quick flick through, and I saw something remarkably familiar on page 141 - a spherical speaker array based on a pair of red Ikea salad bowls. Just like this Instructable, posted here over four months ago and a finalist in the laser-cutter contest. In fact, it's the same thing.Is there any mention of Instructables? Not a jot. I'm assuming that the author of the article, Michael F. Zbyyszynski, is our own mzed, but wouldn't it have been nice to mention that the make isn't a Make magazine original? That we had it first?I'm not getting at mzed here, I place the blame firmly on the editors of Make.But, without shelling out for eight back copies of Make, how many other articles in Make have been lifted directly from this site, without credit to the site?

Topic by Kiteman   |  last reply


help with song downloading.

Anyone know a good downloader site or program that will let me download music but it won't mess up my zune..? no i don't want to pay for it... and limewire messes up zune..

Topic by Cameronk   |  last reply


LED NIGHTMARE!!! (LED THROWIE)

I recently about 2 weeks ago* ordered 50 LEDs for my sister in laws wedding reception from www.modersmart.com, I was totally screwed over when i only received 28 of the LEDs i ordered, not only that but when i ordered them, there was an instock supply of 120 ! ! ! ! >_<Ok, aside from being screwed over, im in dire need of finding (10 pcs) Loose 10mm LED - White and also need (12 pcs) Loose 10mm LED - Redhttp://www.moddersmart.com/index.php?target=categories&category;_id=394if possible could someone help me in finding similar LEDs that use a 3V battery for an LED throwie??another site ive tried is http://www.hebeiltd.com.cn/?p=leds.9.10mm but the Minimum order US$99 mixed OK. and i dont need $99 in LEDs If anyone can help, id appreciate it big time!! Thanks.

Topic by les_SD_3386   |  last reply


Do people make requests for instructables too? + growing glowing geodes + making your own slime

Hey, I saw a instructible or two featured on here that reminded me of something that has prompted a question in my mind. Is there a typical way that people make requests for instructibles, aside from comments on existing instructables, or here in the forum? Or is this forum the typical place (I haven't scanned through to find out on my own)? Anyway, I have a request that I'll try to lay out here... In a badass local toy/education/science shop, they sell these kits of weird or "gross" science experiments. Like growing glowing geodes, making volcanoes, making glowing slime...stuff like that. The problem is, these kits are a bit pricey, but they DO have an ingredients list on the outside of the box. I took photos of the kits/lists in the store, with the idea that I could probably find info online to be able to replicate the "experiments" more cheaply by picking up the components elsewhere. I haven't gotten around to it, and so I thought Instructables would be the perfect place for people that would do the same thing and share the info to all of us. Specifically, I really want to do that glowing geode thing. Some of the other kits were pretty spiffy too, but I don't have the info in front of me to give you further details. (I'm sure I could google around, and eventually I'm sure I will).

Topic by Subvert   |  last reply


Toshiba p35 toshiba dc power jack

Hi, can anyone tell me how to replace the dc power jack on a Toshiba p35-S6112? Thanks

Topic by Oztac   |  last reply


Flickr uploader

We have one now. It's in your upload page: https://www.instructables.com/upload Read more about it here on the blog.

Topic by ewilhelm   |  last reply


stepper motor help

Hi, i need help in building a cnc machine. not the hardeware just the circuit. i already saw this https://www.instructables.com/id/EG9RXG6F54HJ7SL/ and the circuit that it included but i coulden't understand the circuit. there is this circuit http://www.aaroncake.net/circuits/stepper.asp which i have already built but need help connecting it to my parallel port on my computer. i would really appreciate it.

Topic by dark_inuyasha   |  last reply


Quick Question about Batteries

I'm sure this is a really simple question, but I'm still new to all this electricity stuff. If I had two D batteries in a battery pack formation, so I'm drawing current from both of them, if the wire coming off the positive doesn't connect to anything else, and neither does the negative, will the batteries drain faster than they would if they were just sitting there? Here's a (cruddy) diagram.

Topic by Bran   |  last reply


LED burnout

I've have an LED problem that I have done extensive reading and troubleshooting on but I can't seem to solve it. I'm running 4 super bright white LEDs (NTE30071) in parallel from a 24v 600mA DC wall wart. The LEDs are 4V, 25mA. I need that wall wart to also run a solenoid. When a button is pressed a relay powers the lights and the solenoid for a few seconds. The problem is my LEDs keep dying. At first I had a 10K ohms 1/4W resistor on each and I lost 3 LEDs. After more study and calculation just replaced them with 1K ohms 1/2W resistors. After a few more hours I lost another. When I removed the 10K ohms resistors they read 1K ohms. And I just tested the one on the 1K ohms resistor that went out and it reads 200 ohms. I know there is something that I just don't get; something basic that highlights my lack of any electronics experience. I appreciate any help you can give, this is just is just wearing me down.

Topic by robotninjasquid   |  last reply


Bike Lighting - Pedal-Powered 60W Incandescent Bulb?

I know, I switch projects a lot. I just can't stay focused on one thing for too long.Anyway, here's my idea:There's a local museum called Fort Discovery, which, by the way, is quite cool. But, there is this exercise bike they have there, and connected some how (I haven't been there in a while) is a few different home tools, like an incandescent light bulb, a drill, a hair dryer, and something else. There are switches, so you can turn whichever ones you want on, to see what you can power. The "exhibit", if you will, is to show how work = power. Now, I'd like to try to hook something like this up, except a few things will be changed:It would be a regular, moving bike.There would only be a light bulb.I want the power to be stored in a capacitor, because what would be the purpose of having a light while riding in the daytime?Now, besides from the point of me not knowing at all how to hook this up, I wonder if there would be a capacitor that would store enough power to light the bulb for a reasonable amount of time, if say, I used a 60 watt bulb. Then of course, I have a few questions, some of which I may of already said:How big would the capacitor have to be hold enough power to light the bulb up?How many hours (or minutes, if applicable) of moderate riding would it take to store enough power to light the bulb enough to see for about 15 minutes?Would the power stay in the capacitor so that I could charge the bulb a bit over the course of a few days?How would I hook such a circuit up?Could I hook the circuit up so that the power is stored from the wheel going around, rather than my pedaling?Thanks for any and all help, and if this turns out all right, then I may just put an Instructable up. I guess I'll have to see. Thanks again!

Topic by Bran   |  last reply


Primary and Secondary on a usb external drive?

I've got a external usb drive connector, and it only has a short yellow ide connector, what would happen if I connected a regular ide cable to the pins, would I be able to connect two drives? IE: 2 dvd burners?

Topic by Punkguyta   |  last reply


im new. questions about led and a 9v.

Circuit boardim trying to create a circuit board with leds on it that spells out my handle. i was thinking of using it as a throwie or like a calling card. im totally new to this so i didnt want to try and use a printed circuit board since i have never done anything like this before. i used a circuit board i bought at radio shack. im building it with standard super bright 5mm leds that are about 2.1 v and im not sure how many Ma. i assume 25 Ma. no matter how i plug these numbers into my formula (source volts - led volts / Ma) the leds always seem to run hot. i cant figure out what resistor to use. the power supply is a 9v battery. i also would like to know how to string about 30 of them together off one 9v. i know its alot but can anyone give me some advice or help me out?

Topic by mat_massacre   |  last reply


'ServerBot'

I was inspired (and pretty amazed) at the ServerBot instructable that someone had made for the iRobot Create challenge (LINK). So inspired, in fact, that I would like to try to make one. The problem is, I have a low budget, only knowledge in Basic Stamp 2, and I have some, but not many, types of sensors. I am almost sure this is possible (even remotely, at least) with the basic stamp 2. I have some of the ideas for the coding in my head, and some idea of how to make it. If I do follow through with this, I will make an instructable on it. But I need some ideas. Is this truly possible with a basic stamp 2? Elaborate, please! Credit to the below picture goes to JoeCreate who made the robot (LINK).

Topic by RPisces 


Music playback with breadboard.

Hello all. I want to create a simple music playback device. I wanted to be able to program a couple simple songs (MIDI format?) and when it receives an infrared signal, it begins to play through small speaker (small enough to hear about 10 ft. away). I was thinking this could be done through a breadboard. I am familiar with using breadboards but everything else I will need explained well. I appreciate any help I could get. Thanks.

Topic by TimArchy55   |  last reply


DIVX TO DVD

HOW CAN I CONVERT DIVX MOVIES TO DVD TO PLAY ON MY TELIVISION?

Topic by rickick   |  last reply


Welcome

Hey. I am happy to open up an Xbox group. If you like to mod or just like xbox, you you join.

Topic by Akira7 


Questions about Electronics and such I'm a complete noob (mostly LEDs)

So I bought some LEDs off ebay to try out wiring after I read this instructable https://www.instructables.com/id/E9NFEFO2ZGEV2Z9QKZ/. So far I have been able to wire 4 LEDs in a series and connect them in my car . Thats were I am knowledge wise , I soldered for the first time. I have a bunch of LEDs left over and I wanted to make a small sign. I have a few questions.Is there any device (besides AC power adaptor) that can limit that amount of voltage I use? Say like a 110v to like 40v?Is it possible to hook up 25 LEDs in a series with the required resistor and plug it into a home outlet?Is there any type of material that I can use to scatter the beam of an LED?I had a few more questions but I can't recall them right now.

Topic by Mr. TiKi   |  last reply


crazy CTRL key on HP keyboard HELP~!!!~

I have an HP keyboard, the CTRL key I used to use to be able to clk mouse on web page drop down box of multiple items , hold CTRL key and select multiple items from box. NOW I do the above and when I press the CTRL key it Opens a new Internet window..Will not alloe me to multi select anything. HELP this is driving me Nuts...

Topic by gogrannygo 


Old Laptop----> Digital Photo Frame

This is an idea for a craft project: I'd like to have a digital photo frame, but I just can't bring myself to pay $200 for one. Now, I've got an old laptop sitting around the house that is slower than frozen mollasses, but has a nice big LCD screen goin' for it. It could definitely handle a photo slideshow. It's just a question of changing the laptop physically so it will hang on the wall and look nice-- remove all the unecessary stuff and strap what you still need to the back of the LCD and voila! I've had this idea for a while now, but there's no way in heck I have enough technical expertise to pull it off. So, I'm puttin' it out there to all you people who are smarter than me. One of yall is bound to be smart enough to pull it off. And then the rest of us will follow in your footsteps-- stand on your shoulders as it were-- and turn our old, crappy, laptops into nifty new peices of gadgety wall art.

Topic by Ke11iente   |  last reply


Check out this Awesome Ship Propulsion System

Http://www.voithturbo.de/vt_en_pua_marine_vspropeller.htmTo see it in action -- click "Open iVSP - Interactive VSP Program" on the bottom half of the page.Just wondering if anyone got as excited as I did... or at least just as amazed as I was :p

Topic by trebuchet03   |  last reply


Instructables group on Youtube

A couple days ago we made a group on Youtube for the Launch It! entries. You can check that out here:http://youtube.com/group/launchitSo now we decided to go and make another group for ALL of instructables. That one is now here:http://youtube.com/group/instructablesTo add a video to either group all you need to do is join the group and then click the "Add to Groups" link under any video you want to add. There are just over 30 videos in the group now, but there are many more videos to be added so add a few if you have the time.

Topic by fungus amungus   |  last reply


food for teeth ?

Hello. I've heard that teeth were able to absorb some substances/molecules thanks to the porosity of the enamel. Unlike bones, as they are not self-regenerating from the outside, I was wondering what substances may be usefull to offset the erosion of the enamel (remineralization ?). Is there something that could be concidered as a "food" for teeth ? Also, about dental caries, as they are mainly caused by bacteria eating "fermentable carbohydrates" who generate acidity, here is a question that may sound stupid, but that is serious : - to make the work of those bacteria harder, is it better to sleep with the mouth wide opened (oxygened mouth) or with the mouth closed (anaerobic conditions) ?

Topic by chooseausername   |  last reply


Assembly on Windows

A while ago, I started learning assembly with FASM and as much as I tried I couldn't do it, it was impossible...all I found was 9 year old tutorials and stuff that I understood, but still didn't make sense to me, I would really like to learn assembly on windows and I was wondering if anyone could point me in the right direction? EDIT: I have programmed in other languages in the past including C++ and PHP

Topic by CogitoErgoSum   |  last reply


OOPS! SONY DID IT AGAIN - NEW MALWARE ROOTKITS

If you have a SONY product you're screwed. Especially SONY USB products for PC's. Drop the bomb on SONY and let them go OOB with a bang!!! Love your Playstation? Just hack the $#!+ out of it! SONY forfeited their DMCA rights. Stop brown-nosing SONY or you'll get computer-AIDS! They haven't learned their lesson. Search for SONY USB ROOTKIT and get as pi$$ed as me! SONY is the reason I haven't touched Windows since their first illegal megahack in 2005. They either owe me a fortune or I own their sorry @$$3$!!! (By default they acknowledge my Pandora's Box/Predictive Music Synth tech, since they did not choose to instead compensate me for actual damages by "SPECIFIC HARM MUSIC" ... which they did not acknowledge as Malware). I am not liable for this rant. I have first amendment rights and this is true.

Topic by VIRON   |  last reply


My monitor screwed?

I've got a 19 inch flat screen crt monitor hooked up to my mac. And when I play my music really loud, the image almost shakes like it would if I had the stereo hooked up to the power bar with it like it used to be. The stereo is on it's own breaker right now, but is it doing that from the actual vibration of the picture tube or is it dieing on me?

Topic by Punkguyta   |  last reply


Adding remotecontrols to electric devices

I am looking to add a remote control to a circuit board which controls two separate motors (forward/backward and left/right) The control should be pressure sensitive. right now the control is a mounted 4 directional switch (like on a motorized wheel chair). How can I add a remote to it? I have an old R/C car board, and the remote that goes with it.

Topic by DaMadProfessor 


Variable Speed on a DC motor

Hi everyone, Does anyone have any suggestions on how I can slow down the roatational speed of a 14.4V DC motor? Its come out of a cordless drill and I have another project to put it to use but it rotates too fast at the moment. I have 2 options: 1) Use a variable resistor to slow down the speed 2) Use a gearing system In an ideal world I would prefer to use the variable resistor, as then I could change the speed of the motor quickly and effortlessly. Mechanical circuits are not my best skill and Ive already burnt out a cheap potentiometer (presumably too much current?) so I need to think more inteligently about what the design should be rather than just bolting components on the side of it. If anyone has any ideas please feel free, im open to all suggestions at the moment. Thanks Mat.

Topic by mathewjenkinson   |  last reply


iPod 2G to iPod 5G Hard Drive Converter

I have two iPod 5Gs (iPod w/ video), and one of them went through my washing machine. I also have an iPod 2G (with the actual spinning wheel), and I want to transplant the larger 30G hard drive into the older iPod. I opened them up, and was disappointed to find out that the connectors were different. Does anyone know if there is any way to connect the larger hard drive to the old iPod?

Topic by Ora 


iRobot deadline?

Hey everyone-How are you doing with your iRobot Creates? I notice that nobody's posted yet- would a (short!) extension help you out?Let me know how you're doing.

Topic by canida   |  last reply


HELP! i need help with sound activated flash!!!

Hello, i have recently been intrested high speed photography. I have rigged a cheap external flash to be fired when you tough two external wired together. I wanted to make some kind of circuit that would trigger the flash when there was a loud sound. I have almost no experience with soldering, soldering, or anything with the sort. i do not have very much money to spend on this particular project. I have noidea what to do, so any help or suggestions would be very much appreciated. Thanks!

Topic by TheMediocreNinja   |  last reply


Electromagnet Trouble

I'm in the development stages for my entry into the Launch It contest. Right now I'm just experimenting (or trying to) with scale electromagnets. I'm using solid core insulated copper wire from RadioShack, and a nearly fresh 9v battery. I tightly wound the wire around a finishing nail, which happened to already be magnetic, but am not getting any improvement in the magnetic field. It seems to be the same, weak size. Am I doing something wrong, or do I just need to step the size up? Thanks!

Topic by Bran   |  last reply


flexible light rope or similar light moving device

Am searching for method to replace old or upgrade new idea for creating safe toy which allows child to operate from control box or reistat the movement of color lights through safe tubing- similar to light rope but changable through speed and direction. Mostly speed. Enough rope to shape into any form. thanks, west virginia kate

Topic by west virginia kate   |  last reply


How Can I Make A Controller with a built in mic

My xbox 360 headset was crap when i bought 360 the ear piece fell of so i cut the end of the wire attached to the headset.#3 is gone And The Wire In between #1 And #2 i have. So how could i build it into the 360 controller?

Topic by nameless   |  last reply


PC Test rack

I read an instructable a couple of weeks ago on a PC Test rack, basicly allowing you to test a PC without a case, but I can't find it. I've searched for ages but can't find it at all. Any help on finding it would be appreciated.

Topic by Josho   |  last reply


Computer controlled remote control

Anyone here have ideas on creating a computer-automated cable box remote control, so that I could use my computer to schedule when to turn the cable box on/off as well as have the computer make the remote select the appropriate channel?

Topic by etelos   |  last reply


psi and fps??

I am wondering how much fps/ a 300 psi/ is. Iam icelandic and not wery good at english but man when i´m finished making my air rifle you´ll get the best instructable you´ve ever seen!!!

Topic by Enzo55   |  last reply