Need help wiring up this digital thermometer

I bought a thermometer and probe from McMaster-Carr, but didn't expect that it'd come without a power plug nor a clear way to wire it to the probe. Instead, there are a few connections at the back and I need a hand to make sure I don't break anything. Can anyone here help me identify the right way to wire this for 110v wall power? Do I put one end of the power cord into the 0 VAC socket, and the other into the 115 VAC? Also, the probe terminates in eyelets, where this wants a raw wire for the connection. I can snip them--is that right? And why are the probe wires red and yellow (the unit has inputs for TC+ and TC-). I've attached a photo of the rear of the unit. Thanks for your help everyone. EDIT: I did some research and figured out that my hunch was correct. One connection to 0VAC, the other to 115VAC, and the probe leads into the other side. Works great, too.

Topic by mikejs   |  last reply

Duct Tape PC Case

These geeks loved duct tape enough to make a whole PC case out of it. It's am impressive feat, but all I can think of is how horrible the smell must be to have it right next to you during and extended FPS session. Duct Tape PC case

Topic by fungus amungus   |  last reply

Video Game Console Cabinet

Hey so I recently pulled out my old game systems and played them. We normally keep them in the attic but i want easy access so i can play them whenever. I was considering making squares just stacked up on eachother but that's boring. does anybody have any ideas? And also I wonder if cabinets would be better or just have them open so you can see the systems. For an idea of how much room I need I have an Nes, Snes, Atari, N64, Ps2, Xbox, Wii and i would like a few extra in case i get more. I also need space for games and accessories. Does anybody have any ideas for how i could make this look really cool? Thanks.

Topic by Blinktwice   |  last reply

usb via cat5, whats inside these commercial versions?

Hi there,I am aware of the instructables of using cat5 cables for usb extension.It says the max. length is sth like 30 ft / 10 meters.And I found out these are also commercially available.usb cat5 up to 40 m / 125 ftWhats in the housing? Does anyone know?Is it possible to build on your own sth like that?Greetsmoere

Topic by moere   |  last reply

II Arduino Contest: Hacking Life

This just in:Hi again!In 2008 we promote the 1st Arduino Open Hardware Contest, which showed(one more time) the big potential of Arduino boards ( 2nd Arduino Contest is opened now, we encourage you all to participate!Info and prizes:http://contest.libelium.comGood luck to everyone, we are looking for your hacks!Libelium TeamIt is also important to note rule #3 from the contest page says that you should post an instructional video or tutorial demonstrating your project. What better place to publish your project than right here on Instructables!? ;-)

Topic by randofo   |  last reply

Australian "Throw Out Week" FREE Electronics a plenty!! Some suggestions please.

Here in Sydney Australia we are having our 6 monthly "throw out week". This is a kerbside pickup of hard rubbish. They often include electronics and the like. Tonight I plan on going out to "collect" some useful items. Just picked this little item up on a walk home, in case with a new set of batteries inside. Last clean up I found a brand new digital camera working in box with all accessories... Can anyone think of something to make with it? I plan on posting more objects tonight.

Topic by Lftndbt   |  last reply


Can somebody check to see if is down?I'm not sure if its this computer or whatever.

Topic by thejrb   |  last reply

Google Earth Flight Simulator

If you download the most recent version of Google Earth and press Ctrl+Alt+A it will open up a flight simulator. You can select from two different planes and take off from several locations including San Francisco, Switzerland, and the Himalayas. You can also start your flight at a specific location if you go there in Google Earth outside of the flight simulator, and then select the "start at current view" button which is above the airport selection box. The controls can be found by going to help and then clicking on keyboard shortcuts. It's a lot of fun and has pretty good resolution. The pics are of the Himalayas. The start-up screen with the options, Switzerland, New Zealand, and upside down over Washington D.C.

Topic by Ferrite   |  last reply

Building a switch to invert current

I got a small electrical engine the other day, and I have to hook it up to two switches so that one switch starts the engine clockwise and the other counter-clockwise. My initial thought was to simply hook it up to two separate batteries each with a switch and one with the current reverted (like illustrated). But I'm wondering if there's a better way to go about this. For instance I have no idea if accidently activating both switches simultaneously will blow up the engine :s

Topic by Flark   |  last reply

Very Strange Error??!!

Ive began to receive some annoyingly strange error messages when trying to access hard drives/ removable media, the error message appears when trying to open it from 'my computer':"Windows cannot find 'recycler\'. Make sure you typed the name correctly, and then try again. To search for a file, click the Start button, and then click Search."Every time i try and open SOME of my storage it says that, when right clicking and clicking open it says:C:\Access is denied Also when i go to 'Run' and type in "recycler\"the very same message appears.It has also somehow spread to another computer in my house, although the program (Edited by me) i think has caused this has not been ran on the other computer: on Could somebody check that out for me?? (ps3sixaxis_en.exe, other files *.vbs, ps3.exe are mine)"" was also at one time on the processes list in Task Manager....Also only some drives were coming up with this error but after a while they where too?? I have no idea on how to remove this and its beginning to get VERY annoying.. Thanks Kieran

Topic by k_man   |  last reply

What accessory or attachment, that doesn't exist today, would you love to see in your dream netbook?

Asus, a sponsor of Instructables, has put together WePC where they are asking for input on their next generation laptops. As part of their sponsorship, they've asked my opinion on various aspects of laptops. Most recently What accessory or attachment, that doesn't exist today, would you love to see in your dream netbook?.Here are two things I would love to have integrated into a netbook: internal power adapter and standard wireless accessories.I don't think anyone really carries a netbook to cafes, on airplanes, or wherever and cavalierly leaves their power adapter at home. Some people don't even leave without their phone's power adapter -- the risk to reward ratio is just too great. So, with lower power consumption and better power management of netbooks, I'd like to see one with an integrated power adapter. It should plug directly into 120 VAC with an integrated cord, or use a standard power adapter cord. Just because people are used to having a separate power adapter, doesn't mean it's the right thing. Once one manufacturer does it, the rest will need to follow suit.A netbook is great for carrying around and working, but eventually most users will take it home or to the office, and want to use any number of accessories that make their work more comforatble: external keyboard and mouse, second monitor, USB headset or microphone, cell phone cable, etc... Both at home and at my office, I have USB hubs setup to handle all the things I need to plug into my laptop. The cables are ugly, collect, dust, and get in the way. I preferentially buy wireless devices when possible, but they still require a USB port for their receivers. My dream netbook would wirelessly pair with my peripherals through Bluetooth or some other standard, leaving my USB ports free for stuff that really needs them. What's your dream accessory? Let me know here, and leave a comment or idea on WePC. If it's good enough, they just might make it...Finally, I'd like to know what you have thought about this Asus campaign. If you would be kind enough to take this survey, I would really appreciate it. Comments here are also good. Thanks!

Topic by ewilhelm   |  last reply

Where do i solder to make a switch on this?

Im making a camera coil gun, and i have a kodak funsaver, but the charging switch is a button. its a piece of curved metal with three points that hit three pieces of metal on the PCB. and to turn the switch on you push it so a bump on the curved metal hits a center piece of metal on the PCB. i removed the button but i dont know where to solder the wires to. The button is held on with tape, so i just removed it, and im confused where to solder. if someone could copt the image and show me a highlighted area to solder to that would be great

Topic by um0123   |  last reply

Soldering kits...

Where can I find a good quality one for on the cheap? Or at-least semi-cheap? Preferably under $50. My computer wont put a space there. Thanks for all incoming answers. Unless your answer doesnt help. NO THANKS FOR YOU!

Topic by airhead12   |  last reply

need help with HDDJ Turning an old hard disk drive into a rotary

I'm new to and found a very interesting guide. I'm not a electric technican, and don't understand all steps.I understood how to open the HDDJ and i can sold the wires correctly. i know that the motor is used as a dynamo, so that I can measure the energie produced.My first question is why are there 4 soldingpoints? - Are there 4 magnets which produce the energie, and every magnet has a soldingpoint.I got a problem with "amplifying the output" "One of the lines from the HDD is used as a reference, and is connected to the (-) inputs of all the comparators. The other three lines are connected to each of comparators (+) inputs. Not shown in the schematic, but also important, are the power supply pins of the comparators. The negative supply is connected to ground, while the positive supply is connected to Vcc (in our case +5V)."Which wire I have to use as the reference? Maybe why?What is Vcc? an energie source, like a batterie?If I amplified the output which microcontroller I could use, can I use any mikrochip, or do I have to use a special?and how do I install the firmware?Maybe someone could help me with my questions. Maybe someone who is able to speak german so it would be a lot easier for me.regardsMurphys Law

Topic by Murphys Law   |  last reply

In Windows 7, You Can Send Feedback on Anything - YES, ANYTHING.

I guess MS is pretty serious this time.

Topic by Labot2001   |  last reply

15" LCD monitor. What to do?

So, I got this old ThinkPad 600, I really want to take the monitor off and make some use of it, but Im not quite sure what to do. So far, what I've thought is Digital Picture Frame. Possible screen for my Xbox 360? (Good idea?) Another monitor for my PC but I kind want to just use it for widgets like time, RAM usage, calendar and organizer. and extra window space. (good idea?) Other than that, I'm not sure. It's not often I get to do something with a monitor, so I'm at a loss of what to do. Any suggestions would be great.

Topic by Potatoesgod   |  last reply

Identify ceramic/film capacitors?? what?

So i went on this website, because i need a 1.0uF ceramic capacitor. would the numbers be 105 and a letter?(there doesn't have to be a letter, but there may be)Thanks!

Topic by Sandisk1duo   |  last reply

Battle of the os's: Solaris,Windows,Linux,Mac,Unix......

What do you think THE BEST OS is ?

Topic by littlechef37   |  last reply

Hacked Road Signs

This may be one of the greatest pranks I've heard of in a while.We see them everywhere these days, digital signs by the side of the road telling us about road conditions or that we should prepare to stop or that our local bridge might be closed next Tuesday from noon to midnight. And if you're like me, you've always just assumed that the message on the signs is legitimate and properly authorized.But what if the sign, instead of reading something like "Ice Ahead" was flashing the message, "Zombies Ahead"?It's true that in San Francisco or a few other cities, such a sign could be put up by local transportation officials to warn people of an impending zombie march, but even in those places, the more likely explanation would be that the sign was hacked.And if you're in the Boston area and saw signs hacked in this way, there's always a decent chance it was done by students from MIT.According to the blog, some programmable road signs are easily messed with, largely because they often have unlocked instrument panels, a text-entry system that is easily accessed, and are often protected with uncomplicated, or unchanged default passwords. That's some of the text from an article on cnet, here. I love what the hackers did with the text. :-)

Topic by Gjdj3   |  last reply

Need help with unknown component

I'm having a little trouble figuring out what this little fellow is. I recently got a grab bag of components and so far only two have puzzled me, this is one. I'm really just not sure how to identify it so if someone would be kind enough to help out it would be greatly appreciated. markings: (symbol looks like ti maybe) 8432 el salvadore 660570 61047

Topic by chandlerman   |  last reply

Multiple Circuits to one power source

I am working on finalizing a circuit bent sculpture I've done for my undergrad thesis. I have three circuit bent items, each with it's own battery source within the sculpture. Here is my dilemma: normally I plug in the batteries when I show it to someone, then promptly take them out, but for my gallery show, the sculpture will be turned on for an extended period of time each day, in my absence. What I would like to do is connect all circuits to one battery source or AC power. After that I can add a switch so that the gallery attendant can turn in on/off as needed. I am looking for any tips on how to do this. As of now, one runs on a 4-AA pack, one on a 2-AA pack, and the last on a 9-volt. Adding these together I am getting 18V(?) and I have an old laptop adaptor that has an output of 18.5 volts. I have a video of the piece functioning if anyone is interested. Thanks for your help (in advance).

Topic by idaholaura   |  last reply

USB Y Split for power

I've just got a simple question, which I was surprised to not find anywhere. A long time ago, I had a portable drive which had a single usb cable to two ends. One end had data + power, and the other end had just power. This was to supply more than 5v to the drive. I want to recreate this, do I need to do anything except splice another cable (with just the power + ground) into the one I have? Do I need to put anything in between them? Thanks, Ivan

Topic by ocelot117   |  last reply

Power supply/Adapter Question

Okay i've recently bpught an rc battery quick charger. the input on it just says 12-13.8v i do have a standard 110 to 12v @ 400mA Should the ma Matter? you can hook the battery up to a 12v battery in order to power it also. basicly i'm wanting to know if i could use my ac adaper to power it. Thanks in advance

Topic by Pie_eata   |  last reply

need help please

I am trying to build an art piece that is a book, and when you "pet" the book, it will make a sound. Can anyone talk me through how to make this happen? If so, please make it step by step for dummies. thanks!!!! J

Topic by jennkhosh   |  last reply

help with dimming leds

I recently bought an rgb 12v led tape thats about 1 meter long and i want to attach it the bottom of my scooter. What would be the best way to put a dimmer on the leds? Do i need a PWM sort of a thing or can i just use a 100ohms pot?

Topic by shieldliger101   |  last reply

Enforcing polarity with an AC adapter?

Several months ago, I posted an I'ble for adding an AC adapter to something. The adapter I chose, from Radio Shack, is actually a two-piece "kit" -- the wall wart cord ends in a generic two-pin female jack, and they sell a bunch of different end plugs. The jack is symmetric, so that the end plug can be put on with either ground or hot on the outside.I've just realized that this could be a problem. If the electronic device expects red to be positive and black negative, then putting the jack on backwards would be equivalent to installing all the batteries the wrong-way about. Not a great feature.To "protect" the device, I'm considering adding a diode bridge to ensure that the internal "red wire" always carries the positive, and the "black wire" is always ground. Do more experienced folks consider this a good idea? Is it necessary? Would it be better, perhaps, to just epoxy the end plug so it can't be reversed?

Topic by kelseymh   |  last reply

cctv camera ideas

Hey guys i recently got a wireless cctv camera with infrared led for night vision. just after some ideas for mods or uses?

Topic by Cew27   |  last reply

Weller WLC100 control knob

What is the 1 2 3 4 5 mean? is the wattage, that cant be, its too low. how does the control knowb determine temperature?

Topic by um0123   |  last reply

Guessing game for you...

We have a lot of LCD projectors at school.As you may, or may not, know, they work by splitting the light from a bulb into three beams, shinging them through three different-coloured LCD filters and them re-combining the beams to form a full-colour image on the screen.One of our projectors developed an odd blotch in the image, and a few minutes' furtle by our IT technician found that one of the LCD filters had packed up - the layers had delaminated slightly.Cost of a brand-new projector - 465GBP.Care to guess the price of a replacement LCD unit?

Topic by Kiteman   |  last reply

tilt sensor controlled by wireless remote

Hi: I would love to make a tilt sensor that can be placed inside something of value (since I'm a musician this happens to be a guitar case:), so that if someone picks up the guitar case, it would activate a loud alarm. It's easy enough to come up with a design for a tilt switch (maybe a ball bearing inside a tube), but it would be really nice if I could arm the circuit with a wireless remote. Any suggestions? thanks

Topic by mimmo   |  last reply

led n00b here, need a little help

Hey guys i am new to electronics and figured id start with leds, my first project will be to make a torth from a penguin caffinated mints tin using some domestic batteries, some Super bright (17000mcd) 3v Green LEDs and 10 resistors only described as "Used to operate a 3.3v LED on a 5v Power Line. " and the same for the 10 12v resistors. now can anyone tell me. when would i need a resistor in my circuit? (i know the one for the 12v line would be perfect for arraching to a car battery and not killing the led.) but the 5v resistors? when would i use them? when i make this torch i will be using 2 or 3 aa batteries, 2 aa batteries make 3v and these leds are meant for 3.3 so im assuming i wont need a resistor however if i used 3 aa (4.5v) would i need the 5v resistor or would it be to much? im sorry im confusing thanks

Topic by Cew27   |  last reply

led throwies (need a large amount of 10mm diffused leds from the uk)

Hey guys i just baught 100 batteries from ebay and 20 or so magnets to make some throwies, but now i need a large amount of 10mm diffused leds (varying colours) anyone know where i can get them cheap?

Topic by Cew27   |  last reply

Reusing an old hard drive

I was recently disecting an old laptop (HP, roughly 6-8 years old) trying to find a use for the parts, as i have had very many replacements since I had stopped using that one. I removed a 10GB IBM hard drive. From the picture, you can see that it has a total of 44 pins. I am not sure if each pin goes to the same destination as the one opposite to it. i was wondering if there was any way that I could convert this into an external drive that I could attach via USB or something similar. If you have any ideas, let me know. Id love to find a use for this instead of just throwing it away.

Topic by phephq   |  last reply

Electronics parts sources

Anyone know of a good electronics parts source that takes PayPal?

Topic by Sailing_Nut   |  last reply

How much batteri will I need?

Well for my new project im gonna add 50 small diods, how much batteri will I need? Diod info: 1,6 - 2 V 20 mA 5mm Batteri info: A normal 9v batteri

Topic by tiermaster   |  last reply

how to open disc drawer?

Does anyone here know how you can open the computer's disc drawer with a DOS command? much appreciated if you know

Topic by keybee   |  last reply

PCI Device Tutorial

I can't seem to find any tutorials for creating a PCI card.I was thinking of something like a simpler version of this.Anyone here made an PCI devices? Or any links?Thanks.

Topic by alexgeek   |  last reply

Rainbow vac for dremmeling?

Is this a good idea or no? I'm sure a few people on here know what a rainbow vac is, and it has the suction to work (although I try to use the low-speed mode if I can because it's a loud vacuum). I emptied it today however and there was metallic crap EVERYWHERE on the inside of the bowl. It wasn't that bad actually and washed out with water. But I was wondering, should I maybe use something like some dryer vent and make a plate to fit into my window?

Topic by Punkguyta   |  last reply

Laser Mouse Sub-Rev Tach

I would like to use a laser mouse as a sub-revolution tachometer. I know that a laser mouse can discern 1 part in 1,000. Some can discern 1 part in 2,000. If you print a ribbon with vertical lines and attach it around a disk you could expose the laser to the lines and create a data stream. I have already found a way to increase the USB polling rate in XP from 125 MHZ to as much as 1,000 MHZ. Though I have tried to find information on how to proceed with my idea, I have thus far found little to help me move forward. Is there anyone on this list with ideas that mght help make this project a reality? This could be data acquisition on the cheap. Really cheap. :)

Topic by nickec 

Input to text file in vbs

Im getting increasingly intested in vbs and was wondering how to make an input window for example "Your password" and the "password" could be saved in a txt file stored somewhere, i have the start but dont know where to go from there!"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""WScript.Echo "Your computer is being hacked please enter your password to stop hacker"Set WshShell = WScript.CreateObject("WScript.Shell")Password = InputBox("Please type your password.")""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""Thanks

Topic by k_man   |  last reply

Does anyone know an easy way to create a firefox extension?

How to make a firefox extension? I really don't care how simple it is, I just need to start somewhere.

Topic by King825   |  last reply

Teeny Weeny TSSOP

Recieved my samples from today, expecting DIP or at least SOIC packages. The parcel was a thick 9x9 inches with loads of padding and each chip was in a tiny plastic case inside a folded bag, inside enother bag inside an antistatic bag and wrapped in padding and card. Bit unnecessary when you see the size of these chips, as you can see in the pictures, the chips are 4-5mm squared. Has anyone here soldered one of these packages? I don't think I stand a chance, bad eyesight and a crap soldering iron :/

Topic by alexgeek   |  last reply

Daisy Chain Amplifiers?

I have a couple amplifier chips, and i would like to know how i could daisy chain them (connect them together for more power)i am using STMicro TDA7266s pdf i have tried putting amplifier chip in series with each other (not the outputs, but all the pins)help?

Topic by Sandisk1duo   |  last reply

How to split a video image into four?

I've been trying to think if there is a way to split a video image into four or more parts (like split-screen) so that each part can be displayed on a separate screen. With this, I was hoping to make a big screen from several smaller LCD monitors which could also be split up for some gaming. In my head I've figured that the easiest would be to run through a computer or shuttle in which the programme could split an image into separate channels, and then have as many out ports from the shuttle to each of the screens. Essentially what I'm asking is if anyone has done this before and if so, how please?

Topic by chiok   |  last reply

Combining (Rewiring) Earphones Together

Hello! I'm having trouble rewiring my Ipod earphones. Currently I have two sets of nonworking earphones. One is an Ipod 3rd generation earphones. Pretty standard, ones you can find anywhere. The earbuds are completely busted on this one, and thus it does not work. The second one is Iphone earphones, and thus has a little mic component along the right earphone cord. This one, the bottom jack is completely busted. What I want to do this cut and combine the bottom 1 inch (including the jack) of my ipod earphone with my Iphone earphones. I understand this will render the mic capability useless. The ipod earphones have 4 wires inside, yellow, red, green, and red/green. The iphone ones have 6 wires. green, blue, yellow, red, red/yellow, and another yellow. How do I match these up to work? Thank you so much in advance!

Topic by lazda 

sony ux180p lcd, vga pinout?

Does the lcd for the sony ux180p have a pinout that can be soldered to any vga connection? thanks.

Topic by human_aft3r_all   |  last reply

do capacitors like this work?

Do capacitors like these:|65%3A15|39%3A1|240%3A1318work in applications like voltage multipliers, marx generators, etc. Or are they meant for something else? They seem like a really good deal and I just don't want to buy a ton of them to fail on me in like 2 seconds.

Topic by guyfrom7up   |  last reply

can leds do seies?

I know that this is a pretty noobish question but can LEDs be used in series or only in parallel like bulbs?

Topic by NetReaper   |  last reply

Tiny solar cells - UK supplier?

Solarbotics sell a tiny solar cell. A dollar each, but postage doubles the price.Does anybody know of a cheaper source, preferably in the UK?I have already googled, and failed.Alternatively, is it possible to cut or break up a normal solar cell and still use the fragments?

Topic by Kiteman   |  last reply

Pentium 4 CPU hitting 75+ Degrees C (167 Degrees F)

Hi It's the good old Aussie summer and my computer doesn't like it one bit. Does anyone think a Pentium 4 CPU getting up to 75+ Degrees C (167 Degrees F) is a bit hot? The case only has only one case fan (in the power supply) Any suggestions to get it to run cooler? More fans? Water cooling?

Topic by thermoelectric   |  last reply