key pad unlocking device

Building a geo cache, i am looking at using a key pad to unlock a box but im not going to pay over a hundered dollars to put outside , is their any thing like this that can be made from a board and electonics with batteries or something of the sorts thanks

Posted by gadget1961 10 years ago


A way to Make Silicone Softer more like rubber?

I am trying to make a suture pad for my practice, and reason why i can't buy it is because i need a bigger size, a size that will make me pay hundreds of dollars to get hold of , if i can. so i figured why not try make one yourself, So i went to the hardware store and bought 100% silicone caulk, and made a mold, it "works", kinda off, the main problem is that when it fully cure it tough as a rock.  I will appreciate any one who will help ,e

Asked by Mohali26 1 year ago


XY pads

Does anyone know where i can buy different sized XY pads? I want to make a midi controller with a few rectangular pads as sliders but i cant find any raw ones.

Posted by mangomango 6 years ago


Heat pad

Has anyone made a Heat pad before?  I want to build one for an out door cat house.  Maybe I can just use a battery operated light bulb at a high Watt.

Posted by cnelson17 5 years ago


Anyone know of cheaper alternative material to plexiglass for homemade DDR pad arrows? Answered

What the title says. I want to build a new wooden DDR pad, but this time spending as little money as possible. Plexiglass sheets make a great material for the arrows (see this video: https://www.instructables.com/id/DDR-dance-pad/ ) but it drives up the cost of each pad by about $25. So I'm looking for a cheaper material that I can cut into squares for the arrows/buttons; it needs to be at least slightly flexible (so it can warp downwards slightly when stepped on) and obviously sturdy enough to withstand stepping, but it doesn't need to be transparent or plastic. Any ideas?

Asked by Doval 7 years ago


Is it good idea to replace laptop's fan by fan of cooler pad ?

There are nasty fan inside of my laptop. The fan is loud and sound is nasty and works always (its such model of laptop), so I want to remove bottom of the laptop's corpus and may be top of the cooling pad and use the pad instead of internal cooler (which I will plug out). I have AMD. I think that it's may work because: fan inside laptop blows at radiator (which is on another end of copper pipe), not right at place where processors located. And I want big fan that will blow right at those part of cooling system where processors located. I'm not gonna remove copper pipe, just plug out default fan and use pad's instead so that it will blow at cooling system from the bottom. I'm gonna use pad with 220-250 mm fan. What do you think ?

Posted by RoS9 2 years ago


Does anyone know how I might be able to create a pad with a few characters that connects to a normal keyboard for games? Answered

I want to be able to press a button on a little pad, like a WOW keyboard with programmable buttons, but they don't have to be programmable, I just want to have the important keyboard characters bunched up together. Can I do this with a breadboard, a keyboard, and some buttons? Thanks, That will work perfectly, I never thought of looking up Guitar Hero.

Asked by Peonpower 8 years ago


Drawing With A Touch-Screen?

My brother loves drawing and he has a friend who has something called a bamboo pad.  It doesn't have a screen which is why I found it questionable.  So we thought we might look for a touch screen he could use.  We had very little luck finding one that seemed like it fit the purpose.  Even those bamboo peoples' didn't look like they would do anything other than lines.  So we have a question.  Is it actually fairly easy to use a bamboo pad, and if not, what touch-screen could he use.

Asked by jj.inc 6 years ago


Help making a heating pad

Hi folks, Essentially, I'm trying to make a heating pad and I'm becoming terrible confused. . . Let me start by offering some background on my project. I'm building a fermentation cabinet that will be cooled by a window A/C unit. The cabinet will be split into two halves. The first half, with the A/C unit, will be for lagering beer and cold conditioning. Temps will be around 40° F. The beer fermenting in the second half show be kept at about 60°-70° F.  The 120mm PC fan will turn on and blow cold air into the second chamber when the temperature drops below a set point. I would like to have heating belts wrapped around the containers in the second chamber to bring the heat of the liquid up when it drops too low. This is where I'm getting very confused. I'm basically an idiot when it comes to electrical work. . . I would like to use about 7' of 30 AWG Teflon coated copper wire as my heating element. I've calculated the resistance of the wire at .722 ohms (this is the part where you ought to start speaking up and correcting me). Can anyone help me figure out what type of resistor I would need to drop the voltage down enough to get a 20W heating element? I'm starting with 120V from the wall. The sketch below is the cabinet design. Thanks, Chris

Posted by Soulproperty 8 years ago


Thinkpad ideas, please.

I seem to have acquired an elderly IBM Thinkpad.  It appears to be fully functional, but... It's running Windows 98, It has a single USB socket, but does not recognise any of the pendrives I plug into it. It has a floppy drive that can be plugged in the side It has no wifi. I have never done anything constructive inside the guts of a computer. So, basically, it's useless to the modern laptop user.  Raw materials. Any ideas?

Posted by Kiteman 7 years ago


Touch pad using tester logic? Answered

Hi everyone,                  I was planning to make a doorbell of which's switch is a touch pad.I tried understanding the logic behind the touch screens used in i phones and such otherd but they seem a bit complicated.Another solution I got was a circuit which has two free wires and when a person touches the two wires(creating contact),the load gets power.This is based on transistor switching.But I don't want to adopt this design since........ I don't know for some reason.Then I remembered those classy electrical testers(seen in the picture).They have a neon bulb in them which glows when they get a voltage of certain range from one end and our body is used as ground when the other end is touched.So if I use this mechanism I just have to use the setting to power the load when a metal plate connected to one end is touched by a 'user'and a voltage is given through the other end.I know these things usually have a neon bulb as they handle AC voltage.Finally here's what I actually need to know- Is it possible to build such a circuit where a 12 VDC is supplied to one end and the load is given power when the other end meets ground(here the person touching the pad).Maybe this might be a total jabberwocky but anyway contribute your valuable suggestions.If anyone has seen such circuits elsewhere, a schematic could be really helpful.Thank you in advance. 

Asked by Adarsh_tronix 5 years ago


use a footswitch to activate MP3?

I am attempting to set up a foot pressure switch to activate an mp3 player for an art exhibition. I wired up the footswitch to to close the circuit when pressed between the speakers and the mp3. Unfortuneatley it only closes half the circuit so the other half remains open giving a lot of hissing sounds. The idea is that the mp3 remains on and playing but that when the pressure swicth is stepped on it closes the circuit so the music plays. I need to find a way to break the entire circuit when the mat is not stepped on. Any ideas how to achieve this? Thanks Cathal

Asked by dockeydoo 8 years ago


How do I make a drumming practice pad wth office supplies? Answered

Or how can I make something like this with office supplies: http://store.drumbum.com/skuA-115.html

Asked by MegaMaker 9 years ago


Vacuum Maker? Answered

For my sleeping pad. It's a thin, around one inch one. I would like to have something to just suck out all the air when I'm done.

Asked by Batryn 8 years ago


Gamepad for a Motorola Droid Pro smartphone at all possible?

After seeing the Game-Gripper for various keypad smartphones, I wanted to have a gamepad for my phone as well. but i own a Motorola Droid Pro from Verizon and the screen and keyboard aren't right for some decent widescreen gaming. I dont think the game-gripper company makes pads for this kind of phone, so does anyone have any ideas on how i could either get or make a gamepad for this phone?

Asked by EngineerJakit 6 years ago


Kaoss Pad Guitar Midi Controler Kit with 5.7 in diagonal touchscreen

Kaoss pad Guitar Midi Controller  Kit

Posted by bassman76jazz 6 years ago


20 alternative uses for a Maxi-Pad - w/Video!

A flight attendant came up with 20 alternative uses for a Maxi Pad, then made a video to illustrate.Some of the uses are quite brilliant.http://www.gadling.com/2009/09/01/galley-gossip-20-ways-to-use-a-maxi-pad-in-flight/

Posted by SFHandyman 8 years ago


PCB Soldering Help Needed. Problem connecting pads. Answered

I have a pre-etched and drilled one-sided PCB where each hole has an isolated copper pad on the under side. My question is what is the best and/or easiest way to connect the pads to complete my circuit? The largest jump is every other (i.e. there is a lead in A1 that needs connected to a lead in C1, B1 is empty). There are also some side by side connections (A1-B1). I've messed around a little but can't figure out a good way to do it. There is going to be a lot of connections so the simpler the better.

Asked by bwrussell 7 years ago


Is there any free software to tell me the temperature of my laptop?

So my brother sold me his old broken laptop for $7 in quarters! (What a steal right?) So I scrapped the speakers, 2 sticks of RAM, USB ports, a cooling fan, LCD screen, a hard drive, and a diode. So I took the fan and wired it to a USB cable to have a cooling fan under my laptop since it usually runs pretty hot, and now it's nice and cool. Is there a widget or free software to tell me the temperature? Thanks. PS: What else should I do with all these parts? I already installed a RAM chip in my computer.

Posted by Zachintosh 6 years ago


Where to buy Othello pad???

I just searched a pad named Othello pad in google. Lightinthebox has the Othello pad, and Amazplus has too. I checked, and found the price of pad in Amazplus is lower, and there is registration coupon code, but lightinthebx is more famous than Amazplus so anyone can give me some suggestions? or have anyone bought the pad?

Posted by baeo 6 years ago


How to make reusable sanitary pads

How do I make affordable reusable sanitary pads for poor school girls in East Africa?

Posted by Judy Nyokabi 8 years ago


Duck tape mouse pad?

 How can I make a mouse pad out of duck tape for my laser mouse. I tried just making a flat piece of duck tape but my mouse just jumped around the screen.

Asked by Megageektutorials 8 years ago



Period Pad for dogs?

My Boston Terrier has her period. How do I make pads for her? Any suggestions?

Asked by asladie 8 years ago


Wirelessly charged mouse

I need some help from all yall out there. My idea is a wirelessly charged mouse. The mouse pad acts as the transmitter coil, and the receiver is in the mouse. The concept might not be phenomenal for gamers, but would be a step into getting rid of wires on our peripherals and really making wireless charging reality. Perhaps a .2 farad super capacitor (.2 Farads ~ 400mAh) could be used to prevent the mouse from dying if you drag if off the pad for a few minutes. I'd need help conceptualizing it and for those of you who know about electronics, assisting me in designing a schematic. The design would be open source so we can have literally anybody contribute and improve the idea. Leave a reply if you want in!

Posted by JesusG33k 2 years ago


Xbox 360 Chatpad? :(

Hey all, today I went out and bought an XBox 360 chatpad, to link up to my PC xbox 360 controller. I have all the latest drivers, yet still I have had no luck of getting the chatpad working :( I googled and found I'm not the only one. There is a program written in XNA that installs on PC and Xbox and works like that, but I don't have an Xbox :( Does anyone have a clue on how to get it working? Thanks in advance, SP534

Posted by SP534 9 years ago


I need your help! Writers and bored people! Citizen Science: Pens vs. Computers!

I'm conducting a research, and I require all ye's cooperation in this! (Indeed, this is citizen science) If you would like to participate in this tiny research, then would ye lassies and lads care to follow the below instructions? I'll write a high school-level research paper on this once there's so much data, that I'd be swimming in the stuff. If you feel like you can't do it, please do smother the link around liberally, so that other people that can answer it, will answer it! Do your part for science! =========================== Directions: You will need the ff.: > a coin > pen/pencil and paper > a stopwatch of any sort > a word processor (a word count is useful) > an internet connection (for posting the results here, of course!) Then do this: 1) Flip a coin. If heads, you'll be using plain ol' pen-and-paper (well, you could use a pencil, too), but if tails, you'll be doing the WPM's on a word processor. 2) Choose one topic below: > A > My zombie apocalypse survival plan. > B > Windows vs. Linux vs. Mac; which is better and why. > C > Why Am I Even Writing This? (dump your thoughts here) > D > Why I like my favourite movie/novel/whateverart genre. 3) Get your stopwatch, start timing and start writing (in essay form) on your prescribed writing medium (see step 1). There is no time or word limit here, however it is better if something more substantial is to be written. 4) Once you feel that you've completed your thoughts on your written piece, stop the timer and count the number of words you've written. Record the two pieces of info somewhere (I need the time in hh:mm:ss format). . . WAIT: It is recommended that you do the above steps first before proceeding to read and fill out the form in step 5. If you read the form in step 5 first, you will jeopardize the information that the form in step 5 seeks. . . . SERIOUSLY: Do steps 1-4 first, then come back down here. This is science we're talking about here. Well, if you're done with them, then sure, you may pass. . . 5) Copy-paste and fill out the following form (i.e. everything in-between the pluses, including the pluses) and post it in this forum (and delete the stuff in brackets ("[ ]", ""), including the brackets themselves), and no, you don't need to post your essays here: ++++++++++ ==|| FORM START ||== Topic chosen: Writing medium: Word count: Time: a) Where do you prefer writing (paper or computer)? If mixed preference, elaborate. b) In what environment did you write in? [i.e. your room, library, outdoors (if indoors, indicate if there was any sun shining through any visible windows or if it was nighttime)] c) How cluttered was your working environment (how messy)? [rate from 1-10 (decimals are accepted); describe how bad/wonderful your working environment was] d) What did you feel while you were writing on your word processor/paper? [how comfortable were you; general emotions] e) Did you encounter any difficulty in sorting out your ideas whilst writing? Please elaborate. f) Did you read this form before you started writing? If yes, why? Tell me. If no, very good! g) Did you fully understand all of the instructions? Don't be shy. kkAATCGx1 ==|| FORM END ||== ++++++++++ Congratulations! You've contributed to science! If you have any suggestions or inquiries (I really feel like I've missed something here), feel free to PM me about it! (I'd really much better prefer PM's over forum posts so as not to clutter up the semi-ultra-subjective data here). All data that is to be posted down here shall be considered open and free to anyone. If you would like to draw your own conclusions, then feel free to grab the data, but make sure to link (or cite) back here! ======================================= Also, despite intending to write a high school-level research paper on this, it's not actually for any research subject. I'm just really bored... and curious. Additionally, is this topic even in the right category? Oh, and belated Merry Christmas and a Happy New Year to y'all!

Posted by nutsandbolts_64 4 years ago


key pad

Plz i need the help for u   i want the made key pad interface securty for my mage board  ,

Posted by dilupajayanatha 3 years ago


Mouse glide Pads

Ever have that mouse that fits just right then it starts to drag no matter what the surface? I dont want to give it up but would like to replace the pads that allow it to slide smoothly across the mouse pad. Any ideas? 

Posted by poorjohnn 4 years ago



Dial Pad problem Answered

I created 2 Skype accounts. My PC runs Windows 10 and I downloaded Skype 7.25. I can connect to my phone with no problem. But once connected, there is no drop down dial pad. Dial pad is available on a different page and is silent. Any advice?

Asked by Steve_Lane63 1 year ago


Is it possible to change the D-Pad to a Control Stick on a Logitech Precision gamepad?

I got a logitech precision gamepad from Target. It was entertaining for a while, until I wondered if it is possible to replace the D-Pad to a Control Stick?

Asked by Novelty 9 years ago


If I can afford an Invader V3, should I get it? Answered

I have enough money to buy a V3, and I want to know if I should get it or a different pad. Opinions and reviews appreciated.

Asked by peach_fart 8 years ago


how do i make a arcade pad for wii to and a arcade pad for pc?

How do i make a arcade pad for wii to and a arcade pad for pc? im thinking of taking taking out the plug that goes to the wii remote and replacing it with a usb but i dont know what wires to use (should i take out the white and green or not) and it will be the first time i solder wires

Asked by ahmad2117 7 years ago


Magnetic reactive writing pad.

I need help figuring out the best way to do the following. And i have been searching and apparently I don't know the proper way to phrase this to find the information on google/instructables. What I need -  a small surface that is magneticly reactive, to be able to Write with a magnet. It also needs to be able to be erased, probably also with a magnet.  I want it to be decently small, and I am sure there is material out there, but i don't know what it is.  And no I dont want a dry erase board.  Think of the Magnadoodle, where it would react to what is being drawn with the magnet, but i wnat something that is more like a Slate, and not a series of pockets that have a certain amount of filaments that react to the magnet.  I am sure there is some kind of material like this out there. I just dont know what to call it, and i need to be able to make it decently small and thin.  A basic idea, is like an impression pad. If you wrote something on the top sheet, or a couple of sheets of the pad, under the sheets, it would take an impression of it, (assuming it was written with a magnetic pen), you could then see what was written on the sheet originally, on the surface. Also it would need some way to be erasable so it could be used again.  A concept like carbon paper, but with magnets.  Please point me in the right direction, I am very hands on, and a long term DIYer, i just need to know what basic material i need to accomplish this. I know it exists, i just don't know what to call it. 

Posted by Panther 7 years ago


Instructables at Web 2.0 conference's Launch Pad

Instructables will be launching a new product at the Launch Pad workshop as part of the Web 2.0 conference. Hopefully we'll be finished with it by then.... ! Press release here

Posted by ewilhelm 11 years ago



Gemma vs Lily Pad? Answered

I have a Gemma from Adafruit. Can I use that instead of the Lilypad?

Asked by cvjeremko 1 year ago


Remote Control Mini Heating Pad?

PLease I hope someone can answer this - I am wanting to make a wireless remote controlled mini heating pad - this is the heating pad I want to use - https://www.sparkfun.com/products/11289 Would anyone know how i can make this very small heating pad wireless and with a remote to be able to turn on and off anytime i wish.  NOTE: The remote heating pad needs to fit inside a small object, almost as small as a playing card box - and be able to control the heat from the heating pad with the controller so it will not burn a thin layer of a cardboard box or paper. If anyone can help with this, it will be greatly appreciated! :)

Asked by iwseollc 2 years ago


Can I use a ps2 wireless game pad on the PC?

I know I can use the wired gamepad with the PS2 to USB adapter cable http://www.amazon.com/Playstation-2-PC-USB-Gamepad-Converter/dp/B000F6BGXY but has anyone used it to connect their wireless PS2 gamepads ? will I need drivers for it?

Asked by auldthief 8 years ago


Is someone willing to give me a good amount of technical advice concerning heat dissipation using a Peltier device ?

Ok, I have a laptop that I use to play many videogames with, and as you can imagine, it has an overheating is a problem. I have software that monitors the GPU and CPU temperatures while I play. The GPU and CPU are rated at a 100c max temperature. Now that the summer season has started, my laptop gets hotter and hotter as I play. I am usually forced to Under-volt my computer so that it stays below safe temperatures. Now, I was digging around online and came across something called a "Peltier device". It is a small ceramic plate (with electrical nodes inside) that when electrified, transfers the heat from one side to the other. The peltier I got is rated at 545 watts, 32 amps, and 18vdc, and gets as cold as -60c, 150c. I ordered a desktop power supply online, along with 2 CPU cooling systems. (I.E.  2x Professional grade heat-sink, and 2x 120mm fan) The Power supply outputs 430watts, 28 amps, and 12vdc. I planned on taking these parts and simply sandwiching the peltier between 2 heatsinks, having 1 hot heatsink+fan and 1 cold heatsink+fan. I planned on pumping the cold air into the air intake on the bottom of my laptop, and just pump the hot air into the room.  Unfortunately, the problem I face (and this is a really stupid mistake) was that I did not measure out this whole assembly. It turns out, the peltier face plates are roughly 2.5" x 2.5", whereas the heat-transfer faceplate of the heatsinks are only about 1.5" x 1.5". Now, I wired this all up, and put it all together, ignoring the parts of the peltier that were hanging off and lo' and behold, the peltier worked as designed, one side got extremely cold, and the other got hot. The only problem is, over time, since nothing was drawing the heat away from the edges of the hot side, it transferred over to the cold side, thus warming it up to about room temperature, negating the entire purpose of the contraption.  This is the part that I need help on, would simply taking some aluminum plates that are large enough to cover the entire surface of the peltier, smother both sides in my remaining thermal compound, and then connect this aluminum (with more thermal compound) to the heatsink? This contraption is essentially meant to be a laptop cooling pad. Mounted inside of an old computer case. So it needs to be mobile (IE, liquid cooling is not an option). Can anyone think of a better solution to this? 

Asked by schwerlin 5 years ago


I want to build football pads with led lights on them. I have no programming skills. how can i achieve this thanks?

sort of light kryomans outfit but on football shoulder pads thanks

Asked by crayc 6 years ago



Can you use earth cement for pads for livestock?

I would like to create a pad in front of my cattle's feeder with a earth and concrete mix.  Does anyone have a recipe for this?  I know that they use this in homes with an earth floor. 

Asked by officer19972004 5 years ago


what's the gel made of inside a pressure activated cooling pad? Answered

I'd like to know what the GEL is made of inside those clever cooling pads sold as mattress cooling pads and pet cooling pads. And, can I make my own version for my dog at a considerably reduced price from the on-line stores? I don't want the freezer gel recipe,(water and rubbing alcohol), I need the pressure activated type gel recipe. THANK YOU INSTRUCTABLES COMMUNITY

Asked by 1way2go 4 years ago


Asus Eee Pad Transformer Youtube Channel

Hey everyone, recently I've switched over from Instructables to YouTube and with great success! However, I have converted from doing a little of everything to now doing videos strictly about Android and the Asus Transformer. So if you have an Android device or the Transformer (aka the most amazing tablet ever made) and you would like to help me out by checking out my channel, please click here. Thanks :)

Posted by Electroinnovation 6 years ago


What are those pads for? Answered

Under the battery of my mobile phone (Nokia 5070) there are five PCB pads. Does anyone know what are they for? (testing, reprogramming the chip...?) May I use them to hack (or brick...) my phone? Thanks. Fabio M.

Asked by Fabio M 6 years ago


How to put off the beeping of a heating pad

I have chronical back pain and I want to bring my heating pad in classes at university. But it makes an annoying beeping when it starts and stops, and I am affraid that's bothering the entire class. How can I get rid on that sound? I opened it but I really don't know what to do with it now.

Asked by gabye 8 years ago



Marking photosensitive film

Can I use scratch pads and permanent marker pens to place hole pads and make traces on a photosensitive film? Can I use UV lamps?

Asked by omowright 3 months ago