7 Panormas

These are pretty cool..there are 7 interactive panoramas...just click on the one you want, and then use your mouse to drag around.http://www.panoramas.dk/7-wonders/

Posted by Weissensteinburg 11 years ago  |  last reply 11 years ago

Windows 7 Screenshots

These are so far the most reliable screenshots of Windows 7 I've found.Some are pretty incredible.

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

windows 7 bubbles?

I've been watching the bubbles screensaver in win7.  Is it modeling anything?  What determines the interaction of the bubbles?

Asked by mole1 4 years ago  |  last reply 4 years ago

7 segment counter

Hi everyone , i have a project that include connecting two 7 segments together to display an input that makes one of them for the units and the other for the tenth but i can't connect them together in a way that makes them count exactly correct as the tenth 7 segment usually starts by 1 whenever we try it and when the unit reach 9 then the tenth gets 2 not 1 as it already started with one  https://www.dropbox.com/s/w50bn9nk8fu7q5s/a7aneeeek.pdsprj?dl=0 http://i58.tinypic.com/1z4eucx.png

Posted by mina edward 3 years ago  |  last reply 3 years ago


I recently heard about the new BT TM-7. First thoughts were price and when it comes out. It is basically a invert mini in milslim form. Great for me though thinking about getting a mini to play woodsball with! (LOL). All in all i want to now your thoughts and opinions about this marker and if you know the price.

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

The 7 pound bike

The wheels are barely over 700 grams for the pair and weight has been shaved off of every possible spot to create a ride that weighs in at 3,195 grams or just over 7 pounds. Damn. I used to have a beast of a cruiser that was easily over 50 pounds. This bike isn't just for show either. The owner has ridden 1,000 kilometers a week on it! link

Posted by fungus amungus 10 years ago  |  last reply 8 years ago

7 Layer Cake

My baking skills are not good enough for me to do this on my own, but I'd love to see an Instructable on making a traditional 7 Layer Cake. I was surprised to find it in the supermarket freezer the other day and wished I knew how to make it (at least in theory). It is usually only found somewhere where there is a large Jewish or Eastern European influence and there seems to be fewer and fewer bakeries making it so I'd love to have a recipe for posterity should I ever be inclined to give it a try. It was the first time I've seen it in California (and it was shipped from a bakery in Brooklyn no less!).

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

7 segment display nsn64r

Hi!Is there anyone having data on nsn64r pinout ? I found a few of them but no pinout instructions.Thanks

Asked by gonzo_one 4 weeks ago  |  last reply 23 days ago

10 bit to 7 segments

Hi everyone!! I'm posting because i need help! I want to make a 10 bit to 7 segments schematic/circuit. I need to just convert 10 bit binary to decimal.. In my idea i have 10 switches and every one of them represents a number in decimal. for example when i put ON my first switch from the right i want that in the 7 segments appears the number "1" and for example when i switch ON the last switch from the left it appears "512" and if all of them are ON appears 1023. So i have 10 ON/OFF switch and 4 (7 segment) display. I have a PIC programmer, so if anyone can help by hardware or software it would be great. Thank you very much!!!

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

Windows 7, is it really that bad???

DVDRW is not recognized, Samsung laser printer does not work, USB is slower than 1.0, movies cannot be played properly... Many conflicts, programs often don't work etc... It seems almost as bad as Vista. W7 32b ultimate, AMD dual core, 2 Gb, etc. Is this normal???

Asked by BobS 8 years ago  |  last reply 7 years ago

BUG...Android Nexus 7

Hi since instructables started using CAPTCHA i can no longer post comments on my android ,Nexus 7  device it does not show the CAPTCHA at all i love the moblie version of Instructables so would really love if the brainiacs behind the mobile verion could fix it  :)

Posted by Dustin Bess 6 years ago  |  last reply 5 years ago

Windows 7 truely sucks

I put Windows 7 pro on my gaming PC, oh my god, it sucks so damn bad! Good thing I dual booted with Vista, I have no clue what everybody was thinking when they said it was good! Every 10 minutes, blue screen on death. Tried everything, removing ram, taking out the video card, changing the power supply, plugging it straight into the wall with out the battery back up, nothing worked, so I booted Vista and it worked great, had it on for 2 days so far. And yes, my computer is very compatible with 64-bit. Windows 7 had a 10 minute maximum. Windows Vista just works, I just wish it had XP mode.

Posted by Yerboogieman 9 years ago  |  last reply 7 years ago

Running a computer 24/7? Answered

Hi. I'm trying to set up a server for a game me and my friends like to play on. Oddly enough, getting the server to work isn't the problem. The server works great. However, I'd like the computer to run the server 24/7 (or until I tell it to stop) I've gone into the power saving properties and changed it so the computer never hibernates/goes on standby/shuts down. I've also made it so that the computer never shuts down the display, or the hard disks. However, when I leave it overnight, I wake up to find that it has gone to it's screensaver, and when I wake it up, I find myself back at the login screen. (Despite checking a box telling it NOT to do that.) Also, when I do log in again, the program running the server has been shut down.  Is there something I'm missing here? How can you make a computer stay wide awake 24/7? I'm running windows XP by the way.

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

7 Color LED Help

I have recently bought two 7 color blinking LED's from RadioShack and learned how to make them change colors and such. I have figured out that if you put a momentary push button switch (with 4 pins) onto the "switch" pin to ground you can get it to change to a solid color then to the cycling of all colors forever. I have two of them set up in parallel, they both start at the same time but slowly become out of sync. Can anyone recommend anything I can do to keep them in sync? I plan on putting these in my car someday as floor lights and it would be nice to have all the lights change color at the same time and not have to keep pressing the darn button over and over again to reset the LED. Any other tips regarding LED's would be appreciated. I am kind of a noob at this so please try and "dumb it down" so I can understand. I am only just grasping the basics of hobby electronics but am very eager to learn more. Actually, any tips in general that any hobby electronics enthusiast should know would be nice. Link to LED discription: http://www.radioshack.com/product/index.jsp?productId=3060680. Part #: 276-016

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

Blakes 7 Teleport Bracelet

This is how to make the magic blakes seven teleport bracelet!Ingredients:one cardboard roll, such as a poster or postal cylinder or the cardboard roll from inside a roll of packing tape; diameter 8.5cm, width 4cm (cut to this width if need be, using a saw or knife)cardboard, thick enough to be sturdy, thin enough to be flexiblethin cork (optional)plain paperglueblack or dark brown foam rubber (optional)silver tape width 1.5cm OR aluminuim foil cut or folded to width 1.5cmAntique Gold or metallic brown paintgrey paint OR a round grey button 2cm diameter OR grey tapered paint OR pink paint OR red paint + pearl nailpolishbrown packing tape or beige paintclear or red contact (optional)Visual Reference:Refer to the Liberator Teleport Bracelet diagram in the Horizon Technical Manual.Instructions:Cut your roll to the right width if need be. If the roll is too thin and flimsy, stick a layer of cardboard over it. Cover the rough edges with paper.Cut five strips of cardboard, one 15x3cm, one 9x3cm, one 1.3x3cm, and two 2.5x1cm (measurements will vary depending on the precise size of the cardboard roll). If the cardboard is thin, cut twice as many strips. If you are using thin cork, cut one strip each from the cork also.Stick the strips onto the roll, making sure they evenly positioned in the center. Check the diagram for where to stick them: the two long strips should be next to each other with a small gap representing where the hinge of the bracelet would go if it had a hinge. The small 1.3x3cm strip goes in the larger gap between the long strips - this is where the red button will go. If using cork, stick the cork down first, and the cardboard on top.When all the glue is dry, paint the bracelet with antique gold or metallic brown enamel paint. Do more than one coat if you think that will look better. Wait for the paint to dry.The red receive-button is made from the two smallest strips of cardboard stuck together, covered with white paper, painted red, and covered with contact to make it shiny. Another way of doing this is painting it red, and then painting it with white-pearl nailpoilish to get that glowing pink-red effect. Glue this as indicated in the diagram.The grey transmit-part is made either from cutting a circle of paper or thin card (1.5-2cm diameter) and painting it grey, or by using a grey round button and cutting off the shaft so that it will stick on flat. Stick this on as indicated in the diagram.Cut out silver tape or foil and stick on the bracelet as indicated in the diagram. Cut out (very cleverly) pieces of brown packing tape in the shapes of the alien characters that decorate the rest of the bracelet and stick them on, or else paint them on with beige paint. You may wish to paint the whole bracelet with clear enamel to protect it.Optionally add a lining with foam rubber, to aid the bracelet in not falling off when you wear it.NOTES: Cardboard rolls: the roll from inside a large roll of packing tape comes closest to the right size. A large postal cylinder is too large and a small one is too small. A Pringles packet is too small, but may be easier to obtain. A Pringles packet is easier to cut but is also flimsier; it is recommended to add bulk by sticking on more cardboard to thicken it up.Cardboard: most cardboard you can buy will probably be too thin. The backs of note-pads may provide thicker stuff. The disadvantage of thicker cardboard is that it will not bend as easily, and the cardboard used here must bend. An alternative if available could be thin cork (a few millimetres thick); this will bend fairly easily and add the bulk you need. But only bother if you happen to have some (maybe left over from someone's redecorating or the like). I used it for mine, it worked beautifully.The red button: building this up from strips of cardboard is fairly tedious, and if you can think of a better way, do that.I know Michael Keating!He Played Vila.

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

how to break Windows 7 password.?

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

Answers are in arears by 6 or 7 years.

It may be only for Monday, but Recent answers just started, starting in 7 or 6 years ago. I'm running XP and win7 with Mozilla... Code monkeys what are you up to ?

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

Re: Windows 7 XP mode.?

Is it possible to use Windows 7's XP mode with VirtualBox instead of using the Windows Virtual PC?

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

rebuilding a Shimano 7 speed shifter?

I have  a hard rock bicycle with a Shimano 7 speed rear axle and a Shimano three speed front sprocket.  Neither shifter will work.  Is there a way to fix these?

Asked by jay oliver 8 years ago  |  last reply 6 years ago

4221 BCD to 7-Segment decoder

I'm looking for a 4221 BCD (not 8421) to 7-seg decoder IC. To be honest, I just want to copy the logic diagram to work on an assignment for my VHDL class. I can't find any ICs like this on google! Do they not exist? For what reason? Thanks, Daniel

Posted by samurai1200 11 years ago  |  last reply 11 years ago

How to make a 7 segment clock? Answered

Hi! i have 6 X 7 segment displays ( i think common annode) hanging around and i was wondering if i could make an clock with hours minutes seconds and an LED or 2 LED's that blinks every second, without an arduino. i do have an arduino for programming but i rather use other parts so that i can use my arduino for other projects. who can help me? Thanks!

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

XS3868 Pin 7 Charge pin?

Hi. I have a XS3868 Bluetooth Audio Module. I found that pin 7 (7th pin on left) is being labelled as Charge. But in some other image,it is labelled as LED. Is it a pin that can light up an led if the battery powering it is getting low? Anyone with experience with XS3868 please tell me...

Posted by 5Volts 1 year ago

windows 7 super basics tutorial

Hey everyone my dad and i have bought my mom a laptop computer for mothers day to help with her book that she is writing and i need help because i need a completely basic guide to computing by mothers day the reason i say this is because my mom knows virtually nothing about computers but i pray that in time she can learn so please help me out here people the laptop runs windows 7 btw thanks fidgety2

Posted by fidgety2 8 years ago  |  last reply 8 years ago

7/4 x 16/14?

Using cancelling

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

Blue snowball mic and windows 7?

Alright, so today I received my new new Blue Snowball only to find it is incompatible with windows 7, or at least that's what I thought. After searching through the web for a fair few hours I found that many people had got their mic working with windows 7 yet there was no driver or firmware update available to download. I managed to find a firmware update although this stopped part way through demanding administrator rights which I gave it but it still wouldn't work :L I'm using the new macbook pro with retina display if that helps with motherboard compatibility. If anybody has a blue snowball I would really appreciate a download link to the driver you are using Thanks in advance Will

Asked by freerunnin1 6 years ago  |  last reply 4 years ago

changes with background on a windows 7 starter

I tried the whole My Colors thing and i thought it had work but it didnt i applied the theme then i applied the wallpaper that i wanted and the wallpaper came up then it went bck to the theme can sumbody help me please!!!!!!!!

Asked by shanta2010 8 years ago

XP "Classic" search in Windows 7? Answered

It took a lot to make me change from XP, but I do like Windows 7 which I'm now running on a couple of machines.   However . . . The thing I miss is the 'classic' explorer search function which gave a no-nonsense way of finding any set of files on your computer (indexed or not) with proper wildcarding and various other settable criteria. OK, Microsoft search V4 (or whatever it's called) has all sorts of bells and whistles, but I'm finding it unwieldy to use and find myself opening a DOS box for speed. Google finds a lot of posts from other people who liked the old search, but no answers. Has anyone here found a utility which replicates the old search functionality?

Asked by AndyGadget 9 years ago  |  last reply 3 years ago

Windows 7 explorer becomes unresponsive Answered

Sometimes my computer glitches and  I am not able to click on anything that has to do with the windows explorer process (desktop icons, taskbar programs, etc.)  I have tried ending the explorer.exe process, but i cant start it back up again because starting explorer.exe opens an explorer window (my computer, my docs, etc.).  The only way to fix this is by restarting.  Does anyone know how to prevent this?  The laptop I'm on is a Dell XPS L501X (i5 460M, 4GB ram (2x 2GB) NVIDIA GeForce GT 425M (1GB))  I am running Windows 7 home premium 64-bit EDIT:  This problem got weirder...Now it happens less frequently, but the problem goes away if I open Revo Uninstaller (maybe because the UAC message refreshes the explorer process?).  Does anyone know if that is the reason?

Asked by budabob07 7 years ago  |  last reply 7 years ago

Can this computer support Windows 7? Answered

Hey, I've been shopping for a new computer and over all of the results, the cheapest most powerful one I've found is the HP Envy H8 with a AMD 6 core processor at 3.8Ghz (4.1 max). I will put my Radeon 7750 into it too. Anyhow, here is the one I want (Hopefully it hasn't sold yet, but there are many people selling it for this price too): http://www.ebay.com/itm/360718941425. So my question is, if I buy the Windows 7 OEM from Amazon.com (Shipped and sold by Amazon), would this system be able to run it correctly? If not, could I make any adjustments to make it run correctly? Thanks! (Hoping to run Battlefield 3, Portal 2, Team Fortress 2, Roblox, Minecraft, Halo Combat Evolved, Grand Theft Auto IV, and Need for Speed World on it at about medium graphics with at least 30-40FPS).

Asked by knexpert1700 5 years ago  |  last reply 5 years ago

driver and update problem with windows 7

I've had my computer since last April. it has Windows 7 home premium sp1. the problem started about 6 months ago. whenever i plug in any new usb device, it fails to install any drivers. hardware installed before this started still works perfectly, only new stuff won't work. and the attached picture is what it looks like when i open windows update. both problems started around the same time, so i assume its the same problem, and i am just completely out of ideas as to what it could be. any help is greatly appreciated.

Asked by mr.mountaineer 5 years ago  |  last reply 2 years ago

stop 7-segment from ghosting?

I'm working on a simple arduino 7 segment driving circuit. (It also has a led bar-graph that displays binary numbers but that part is working fine.) When I get the display working I might make an instructible out of it. Here's the basic layout: -using this 8 segmet 4 digit common cathode display. -arduino controls what segments are on via 74HC164 8-bit Serial Shift Register -shift register controls an array of 8 PNP transistors with base and pull-up resistors -transistors connect to display anodes through resistor array -display cathodes (common for each digit) connected to array of 4 PNP transistors with base and pull-down resistors  -PNP transistors controlled by arduino. (I will post the schematic shortly.) In software, to display a four digit number, I shift the pattern for a given digit to the shift-register, which in turn turns on the PNPs for the corresponding segment anodes. I then turn on the NPN for that digit's cathode. I delay for a few milliseconds, then turn the NPN off, shift the next digit in, and turn the NPN for that digit on. Rinse and repeat. It works fine but the segments that should be off are at about 1/2 brightness, making all the digits look like eights. Even the DP looks like it's on and I'm not turning it on anywhere. Do I need pull-down resistors for the anodes or something? What's going on here?

Asked by Vick Jr 7 years ago  |  last reply 7 years ago

Build Party, 3/7/08

Projects from march seventh, 2008. The MIT Electronic Research Society does it again! Michael chops his bike! Amy makes a passive-dynamic walker! Two fluid dynamics grad students in a homemade-boat competition! Welding! The new lathe tools in action!

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

Windows 7: Logs kept for SMB access? Answered

Just a quick question, are there any logs/records kept on a standard windows 7 computer where you can see what computers have connected via smb? Or any evidence at all? Thanks

Asked by .Unknown. 6 years ago  |  last reply 6 years ago

Sucsessful Forum Post From Windows 7

I am not sure if this is the first, but Instuctables has been viewed using Windows 7! For anyone not aware, the Windows 7 beta is free to download for the first 2.5 million visitors, and last I checked it was still available. This is a link to the download site.UPDATE: Microsoft has lifted the 2.5 million download limit and it will be available until January 24th Cnet Article

Posted by Ferrite 10 years ago  |  last reply 9 years ago

Cheap LCD monitor 7 inches or smaller?

I'm looking for an LCD monitor for cheap that is 7 inches or smaller. I want to use it for making a DVD player. I would prefer it had AV input. I would like to be able to take it out of casing easily as well.

Asked by metalshiflet 5 years ago  |  last reply 5 years ago

How can I recover windows 7?

Recently i tried to dual boot windows 7 and Linux. I burned the linux iso to a cd, and installed it. While installing it, something whent very wrong and whipped out all of windows 7 and Linux won't work aswell. I don't have the windows 7 reinstall disk with me. how can i recover my blank computer? EDIT: I did obtain the laptop legally with windows 7 already installed. However, it did not come with a recovery disk. I downloaded a windows 7 recovery iso and burned it to a dvd using imgburn. it worked fine but then asked me to "provide a backup image you created earlier". I didn't make any backup images prior to this. Can i download a backup image someone has created earlier? please help!

Asked by AllenB94 8 years ago  |  last reply 3 years ago

LCD to 7 Seg or even better BCD?

The challenge: I need to change the LCD output of this chip to 7 seg and then eventually to BCD.  Personal Reason: I'm trying to make a Nixie tube Multimeter. I'm currently testing with some old 7 seg displays so that I don't worry my self with the high voltage of the Tubes, but eventually I need the output of the multimeter to be BCD so that I can use it with the drivers for the Nixie Tubes.

Asked by JoeShmo1 6 years ago

Read from a 7-segment display LCD

Hello everyone. Suppose you have some device with a numeric LCD display with some 7-segment digits (i.e. a digital scale), and you want to hack it in order to read out electronically (for example with an rs232 connection), while preserving functionality of the thing. How you would do that?

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

how to make a windows 7 computer a server?

What all requirements needed?? what all steps to follow in detail??

Asked by AjayPhilips 5 years ago  |  last reply 5 years ago

3 volt signal to trigger 7 volt? Answered

Ok,so I get a 3 volt signal from a detector and use this 3 volt to trigger an alarm which atleast need a decent 7 volts to function.The detector could take a max. of 5 volts input which I got from the 7 volts DC supply.This 5 volts fed,gets transformed into 3 volts after the detection.So let me make this clear,I have a 3 volt and a 7 volt supply.I need to use this 3 volt to trigger the 7 volt circuit.I know what you are thinking-a relay !right?but I couldn't get  a 3 volt relay anywhere(though I got a 5 volt relay).I can tackle this situation in two ways.1)Either by stepping this 3 volt to 5 volts and making the relay do the job.but how? 2)Or some circuit to use this 3 volt to trigger the 7 volts(like a relay but maybe by using ic's).This is the final part of my project and so please help me.

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

Blu ray movies in 7:1 Audio?

I just got a 7:1 Receiver, and can't find any movies in 7:1. I looked up on google, but would prefer some real answers from people who have actually seen it for themselves, as opposed to just looking it up on websites such as blu-raystats.com Thanks, BB

Asked by Bartboy 9 years ago  |  last reply 8 years ago

7 year old corpse bride costume?

My 7 year old daughter wants to be the corpse bride for Halloween. I want her costume to be a great one, so they can use it for dress up when Halloween is over.. any suggestions of how to go about it? I'm a perfectionist and basically want as close to the exact dress as possible. I would classify myself an experienced seamstress.?

Asked by mrsjank 9 years ago  |  last reply 8 years ago

Recycle Nexus 7 2013 display module?

I once got my Nexus 7 (2013 version) broken and fixed with a screen replacement. ASUS gave me back the display. Good news is, only the touch part is dead, the LCD display is still good. Is there any way that I can reuse this part, as a side screen to desktop computer for instance? P.S: I'm using iMac at the office so it'd be great if the hack is applicable on Mac.

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

How to replace damaged LCD in iPhone 7

Yesterday while getting out of my car, my phone slipped out of my gym shorts and hit the sidewalk. I came to a complete halt and slowly but carefully picked up my phone. "Maybe it got a couple of scratches and that's it?" But when I flipped the phone over, I discovered that it had a bunch of spiderweb cracks. I would like to repair this myself, I found a good video guide: https://www.youtube.com/channel/UCxKlNJ577sGSnZAb5fLPD1g Should I follow this instuctions, I think it is pretty decent job, what is your opinion?

Posted by jerry9spinger1 1 year ago  |  last reply 1 year ago

Making Internal HDD Windows 7 Bootable

I found a guide on this website (link to follow) detailing how I can make my Internal HDD bootable for windows 7. I ran into an issue in step 2 with the command prompts. https://www.instructables.com/id/Install-Windows-7-without-USB-or-DVD-without-upgra/ I made a partition of my main drive of 500GBs. The new partition was set to drive J at 25GBs. I Began step 2, In CMD I ran the following prompts: diskpart, list disk (there was only one available), Select disk X, List partition. That is where i ran into the issue. What came up was on the CMD window Partition ### ////Type///// Size /////Offset Partition 3 Dynamic Data 992 KB 31 KB Partition 1 Dynamic Data 199 MB 1024KB Partition 2 Dynamic Data 422GB 200 MB Partition 4 Dynamic Data 42 GB 422 GB My question is which of the above partitions do i select to continue making my HDD bootable. Thank you for your help

Posted by XxPLaGuEzZxX 4 years ago

Knex Commando C-7 V1 Trailer

This is my single shot sniper rifle version of DJ Radio's Ar-4 V3. Hope you enjoy.

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

7 segment led display driver help?

7 segment sed driver/decoder circuit helpEMAIL FLAGIve looked all over, and have already tried 3 circuits, but none work. They have either the wrong ic, wrong led display, etc. So, I want to make a circuit that, by using a decoder, I can flip 4 dip switches and make the display make certain numbers. I have a 7447 ic, common cathode led display, but I can only either find a circuit with a 7447 and a common anode, or a circuit with a common cathode but a different decoder (a latch/decoder/driver). Here is the first site I tried:http://www.allaboutcircuits.com/vol_6/chpt_7/9.htmlAnd when I finally flip the switches, nothing happens even though I made it exactly as shown. But it has a CMOS, so thats probably a big problem. I also tried this site:http://www.atilim.edu.tr/~hkar/lab5.htmBut it has a common anode, and when I tried it it didnt work. I have exactly ELS321HDB. And I have a power unit that can go from 5 - 18 volts. Can anyone show me how to make this? Im not too good yet at reading circuit diagrams, because I seem to make it way more complex then it should be.

Asked by 101yummYYummy101 9 years ago

ICL7107 and LM35 based 7-segment thermometer

I'm trying to create a digital centigrade thermometer based on an ICL7107 3 1/2 digit 7-segment driver/ADC and an LM35 linear centigrade temperature sensor but I'm having a few problems. There doesn't seem to be much online about using the ICL7107 with a LM35 and most of the schematics available are for volt meters, but that's not a massive problem as the LM35 gives 10mV/C linearly. I'm just trying to go based on the few schematics I have found but I'm wondering about the supporting components for the LM35 which seem a little too simple. The first schematic I found was from a Hungarian electronics forum and seems to depict a diode and amplifier being used for the temperature sensing which seems like a bad idea to me. The second seems more like what I'm trying to do. The other few things are the negative voltage source, the first schematic shows an inverter being used as does the datasheet, but the second schematic shows an LMC7660 voltage converter which seems like a better option to me. The second one does also show three diodes in series used to drop the voltage for the LED displays which doesn't seem like the best idea, but I can't think of a better way to do it without attaching resistors to each one as the number of lit segments will be variable. The supporting components for the ICL7107 seem pretty consistent between the two and the schematic so I'm confident those are correct, but I'm looking for some advice on how to connect the LM35 in a way that will give me an accurate readout. Thanks!

Posted by andy70707 4 years ago  |  last reply 1 year ago

Solution to computer problems (Windows 7???, hardware???)?

I had asked 2 questions about my 6 weeks during computer problem:' is Windows 7 That Bad??', and 'help'... Windows XP seemed to get slow and somewhat erratic, so instead of re-installing XP, I installed the 64b version of W7 ultimate, downloaded as 'freeware'. It was a chore to install, and much of my hardware was not recognized (no network port (= internet), only generic CD ROM instead of DVDRW, etc.).  Problems shutting down, and SLOOOOWWW. So after a while, I re-installed my trusted XP, but things did not get better (at all!). This was not normal! Since my HDDs came on and off, I figured it ought to be the motherboard. It always (2 1/2 years) worked fine, but after some internet search (I also do have a laptop), it seemed to be one of the worst MBs ever made... But a spare laptop HDD got fried instantly (motor+ is dead)... So I ordered a new one: A nice old fat Asrock, with 4 memory slots, and 7.1 sound.  It lasted 4 hours... No more picture, not by the board, not by the added card... By warranty, the MB might have been bad, so I got the replacement. But I did not trust my TRUST power supply anymore. So I bought a new 500 GB HDD and new (Cooler master 460 W power supply). Everything was wired up, Windows 7 installed, and it runs great!!! The laptop disk is dead, but my old system disk is most often recognized...  There was still a lot of important, non backed up data on it (!). I was able to secure all of it!!! So my conclusion is: it probably was the power supply: don't trust TRUST!!!

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

Help with 7 color LED and Arduino requested.

I want to power a 7 color blinking LED from RadioShack (http://www.radioshack.com/product/index.jsp?productId=3060680) I want the power to the LED to be constant so it stays on. I will have the ground pin connected to ground. I want the switch pin to be hooked up to a pin that I can have it go LOW or have it go to ground, and then have it delay I guess, and then have it go to LOW again so it changes colour. Please help me out. I am very new at C programming and I haven't found anything on Google. More info on LED: http://www.seanliming.com/Docs/Articles/MSGBB557TA_7_Color_LED.pdf I want the Arduino to automatically change the color's of a 7 color LED. The LED is connected to power with the anode, and ground with the cathode. There is a third pin that if momentarily connected to ground it will change the color of the LED. Code similar to this but having pin 11 change from LOW or ground to OFF if possible. I need constant power to the middle pin, constant ground to the pin on the far right, and momentary ground with delay to the pin on the far left. I am getting an Arduino Duemilanove in about 2 days, and I want to write some code for it so I don't have to wait to do anything. I already wrote a rather long police light sketch that has different light patterns using just the LED's and the "delay", "HIGH" and "LOW" commands. I just need to know how to set pin 13 or whatever pin as HIGH without it interfering with the code at all because it will mess up my whole sketch. Code: void setup() { pinMode(13, OUTPUT); //Constant Vcc+ pinMode(12, OUTPUT); //Constant ground pinMode(11, OUTPUT); } void loop() { digitalWrite(13, HIGH); digitalWrite(12, LOW); digitalWrite(11, LOW); //I need this pin to be able to change state with delay without interfering with the other pins. }               

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