Seven Hovercraft!

Hmm, seven different (but similar) hovercraft projects have been posted with a very short time.I wonder if somebody is using the site to document their science projects and get them judged by a wider audience?Why on earth did I not think of that??

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


Seven Segment LCDs? Answered

Http://i00.i.aliimg.com/photo/v0/325133078/7_segment_LCD_panel.jpg Has anyone had any luck hooking up seven segment lcds to their arduino's? These have 4 seven segment digits, a :, and an am/pm display. They have less than 28 pins.

Question by Michael_Bell 7 years ago  |  last reply 7 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!).

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


Should i switch to Windows Seven? Answered

 I'm currently on xp, i have a 2nd drive to make it easy to transfer data and i play A LOT of videogames (team fortress 2, halo. etc...) so i want to know if i should change to seven. I want to know if i will be able to play Call of Duty 4, and a bunch of SOURCE engine games on that OS, would running both a heavy OS and the game could lower my FPS? No problem with the money, as i will just warez download it. (trusted source) MY RIG: Tipo de procesador DualCore Intel Pentium E2140, 1600 MHz (8 x 200) Nombre de la Placa Base ECS 945GZT-M (2 PCI, 1 PCI-E x16, 2 DDR2 DIMM, Audio, Video, LAN) Chipset de la Placa Base Intel Lakeport-G i945GZ Memoria del Sistema 1536 MB (DDR2 SDRAM) Tipo de BIOS AMI (04/09/07) Tarjeta gráfica NVIDIA GeForce 9400 GT (1024 MB) - I think it will run Aero. C: (NTFS) 76316 MB (5194 MB libre) D: (NTFS) 38201 MB (8029 MB libre) I could also reinstall XP, would you suggest this over switching to seven?

Question by santy22 9 years ago  |  last reply 9 years ago


strange 3D shapes

I need help to find a 3D shape with 7 sides/faces Any help?? Feel free to name any other strange shapes while your at it.

Topic by ti112 11 years ago  |  last reply 11 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

Topic by fungus amungus 11 years ago  |  last reply 9 years ago


Has Anyone Here Installed Windows 7 Yet?

Has Anyone Here installed Windows 7 On their PC Yet? I Have,and if you Have,Post a screenshot,and Tell Us what you think about it(No,I am not a microsoft employee :P). Here is My Screenshot And My Specs: 1.6GHz Intel Centrino Processor 768Mb of RAM(Note that this is within an EMUlator,Virtual Box,I gave 7 400 MB of RAM) Post your Specs Too! Also,It runs Pretty Well On my Laptop Through Virtual Box,It Runs OK On virtual Pc,But it gets Slow And VPC additions Cause it to Blue screen.

Topic by ReCreate 10 years ago  |  last reply 9 years ago


Seven Segment LED/LCD displays?

Does anyone know a good tutorial on how to use these? Thanks!

Topic by perkinsb1024 11 years ago  |  last reply 11 years ago


Looking for FN Five-seven gun project or FN five-seven gun pepakura files

Hi, I'm looking for a gun project of FN Five-seven or pepakura files. I'm doing some cosplay thing and I really need it.

Topic by customer26 4 years ago  |  last reply 4 years ago


How to I display voltage on a 7 segment display?

Okay, I've never actually come across this before or needed to do this but now i come to it, i realise I am really lost to it. What i need to do is display a 3 digit (hundreds eg. 342) number on three 7 segment displays. So pretty much I just need a 3 digit voltage read-out to be incorporated into a portable design. I've been looking around and have come across the Analog to Digital converters, and understand how they work, but I'm not sure how to incorporate them or to put it to any use. So if anyone knows or has a schematic or any information I could work off, please help. :)ThanksPyroten

Question by pyroten 9 years ago  |  last reply 6 years ago


My computer keeps making annoying beepy noises.

And has been doing so for the past 6 months. I have been able to deal with it for this long, but it has finally gotten to me. The computer is a HP Pavilion dv7 running Windows 7 Home Premium. It is not coming from the speakers, I think it is coming from the circuit board. I am sure it isn't coming from the speakers because 1) When the headphones are plugged in, the sound still comes, but not from the headphones (all sound reroutes to the headphones when they are plugged in) and 2) The sound still comes when the volume is turned all the way down. Please help, it is SO annoying. Thanks!

Question by kcls 8 years ago  |  last reply 6 years ago


Fixing a 5 character seven segment display clock

This is a count up race clock that fell due to high winds and has stopped working. It is a springco athletics model 2710A. I have already tried respecting and reconnecting all the non soldered pieces of this display. The main chip on the board is a PIC16F887 with 20 pins. Each display is connected by a single ribbon cable with 20 pins and there are jumpers on each display labeled 1-6(presumably for the character placement in the display). If I cannot find a way to fix the current hardware I would like to replace the control board with an arduino that can do the same thing but I do not know how to wire the display to the arduino nor what model to use. Any suggestions are welcomed.

Question by Tsall1698 2 months ago  |  last reply 8 weeks ago


How should I build a digital "counter with a seven-segment display?

I have a seven segment LED display and I would like to build a digital counter that will increase or decrease the number value displayed on the display when I press a button (a button for counting up and a button for counting down). So I would like to be able to press one button to increase the displayed value (1, 2, 3...) and then press a different button and have the value decrease (9, 8, 7...). Thanks for the help!

Question by MadMechanic 9 years ago  |  last reply 6 years ago


common anode and common cathode differences in 7segment display

What are the changes need to do when using common anode seven segment display instead of common cathode seven segment display. hint:use transistors?

Question by nethmi.amanda.3344 4 years ago  |  last reply 4 years ago


Find the Hidden Harry Potter References and Win 1 Year of Instructables Premium Membership!

I recently published my Witching Hour Halloween Window Display Instructable. Placed within the images and video of the Instructable are SEVEN hidden (and not so hidden) references and items relating to the Wizarding World of Harry Potter. I will give away 1 year of free Instructables Premium Membership to the first person to identify SIX of the SEVEN hidden items, extra kudos to anyone who can find all SEVEN. Just list your six (or seven) Harry Potter related things and where you found them in the comments below, good luck!!

Topic by ThirdEarthDesign 1 year ago  |  last reply 1 year 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.

Question by 101yummYYummy101 10 years ago


Cooking Contest Results!!!!!!

Well...I've finally finished judging! The top 5 instructables, and the winners of instructablea stickers and a patch are (in no particular order): Killer DnD Bean Dip by AtomicBeaker Sticky Rice with Mango Sushi; cheater's version by westfw Seven Layer Seven Grain Bread by technoplastique Roasted Hot Pepper Sauce (original recipe) by lemonie Apple, Cheddar & Bacon Sourdough Sandwich by kitchenwench With the winner being... *drum roll* Seven Layer Seven Grain Bread by technoplastiquetechnoplastique will get to choose between a laser engraved cutting board, wooden spoons, or spatula set. All of the winners will be sent PMs by Canida on claiming your prizes. Congratulations to everyone who won, and everyone who entered the contest. You all had some really great cooking instructables!

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


Where can I find large seven segment displays?

My neighbor wants me to make a scoreboard for his ping pong table, but I'm having difficulty finding something to use as the display.  Seeed Studio has some, http://www.seeedstudio.com/depot/7-Segment-Display-8-Inches-Red-p-1194.html, but they come in individual segments.  Sparkfun has some as well, but they're on a tan colored PCB.  Where's the cheapest place to find 6"+ displays on a black background?

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


Help/guidance needed: Seven colour laser spirograph with lens'

So I'm trying to make a seven colored laser Spirograph, with lens' (that turn the beam into a crosshair for example) and I can't for the life of me work out how to make it work properly. I can design it so that I either have the lens or the Spirograph, but I cannot make it so that the Spirograph fits through the barrel of the lens thread. I think my best option might be to have two holes in the front of the device or use concave mirrors, what do you guys think?

Topic by 5225jackiechanman 7 years ago  |  last reply 7 years ago


What are easy recipes that can be prepared in seven steps; without a stove or microwave?

It's for a class project where I have to teach a "how-to" in japanese. It has to be at least seven steps. It would be easier if the recipe is simple and doesn't involved a stove, microwave, or anything that is hard to carry to school.

Question by 10 years ago  |  last reply 9 years ago


7 segment sed driver/decoder circuit help

Ive 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.

Question by 101yummYYummy101 10 years ago  |  last reply 7 years ago


How to stop windows seven from adjusting settings when plugs are inserted/removed?

I am using a laptop running windows seven, for presentation purposes. My problem is that if I put/pull the VGA cable, charger, etc in/out of the computer, some of the settings (mainly screen settings, but some others too) will change. Another problem I have with it is that when I connect/disconnect audio/network devices to the computer, several messages pop up telling me that a device has been plugged in/removed. How do I stop this? I know exactly what I have plugged in. I don't want the computer telling me this information. Is there a way to stop the computer from doing this?

Question by Jareadx 8 years ago  |  last reply 8 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

Question by gonzo_one 4 months ago  |  last reply 3 months ago


Massive Lego Ball Machine - *proper* engineering ;-)

My eldest sent me this very satisfying seven minutes of engineering: Enjoy...

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


led strip?

Designing an electronic pill organizer that will use led's spaced every 1.25 in apart, seven across, a bank of four down. Must be thin and attachable to a consumer ready pill organizer. 

Question by wineguru2 5 years ago  |  last reply 5 years ago


haven't some of these been done?

I am pretty sure a few of the burning questions from round seven have been done. Do we still do them?

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


Blog off!

If my sixty-seven year old father can do it from Vietnam, then I should be able to. I have a blog. Lightly-populated as yet, suggestions for topics are welcome, but may be ignored.

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


Mother Earth Fair, Seven Springs, PA, USA Sept 21-23 2012

Hi everyone! For those who are interested in modified vehicles, electric vehicles, DIY Hybrids, renewable energy and more, you might want to check out the Mother Earth News Fair. It's coming up really fast. If you are in Pennsylvania, come check it out! I'm going to be a speaker there giving presentations on my DIY electric motorcycle, my most current DIY Hybrid Pickuptruck project, and more! Wear your Instructables shirt and come find me! -Ben Nelson  

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


someone, need help with batch code? Answered

Ok. i have been experimenting with batch code ms dos thingies on my new windows seven computer... i have found a lot of tutorials but they are either too basic or too complicated, links?

Question by macmccune 9 years ago  |  last reply 6 years ago


Knex Ball Machine - Schizoid

Here is my newest ball machine, Schizoid.  It is four feet tall, uses a chain lift and has seven paths.  It took ten days to build.  Enjoy! KnexLord1

Topic by DELETED_KnexLord1 9 years ago  |  last reply 8 years ago


gardening peas

My pea plants are just keeling over and dying. I am growing them in a container, and most just flop down. i have seven varieties, and they are all suffering, to some degree. Any suggestions on how i can save themé it might be that it doesn't drain properly.

Topic by cutting Matt 10 years ago  |  last reply 10 years ago


Unable to edit image-free steps of Instructable.

I had great difficulty finishing off my latest Instructable. It's 8 steps, and I had all 8 written, but only images on seven of them. When I tried to edit the final step and add an image, the editing page froze.  When I clicked on the step with no image, I got the "saving" spinner, which spun for a few minutes, and then it went back to the first step (not the intro). I tried re-ordering the steps, moving the image-free step to step seven temporarily, but it still froze when I clicked on the image-free step. I eventually had to delete the step completely (using the re-ordering tools) and re-create it from scratch. Bug experienced on up-to-date Firefox and XP and on slightly out-of-date Linux and FF.

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


Any ideas what I could do with medium sized tea chests?

I have seven medium tea chests and would like to make use of them, either for an oustside project or inside the house but I just can't come up with anything, any suggestions or ideas?

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


how good is my windows theme instrucables? Answered

Give feed back rate and subcribe tell me what i can add or what needs to be fixed

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


PDFs will not print

After seven tries, I give up! PDFs will not print inspite of re-entering my Pro login multiple times. My login is recognized, but as soon as I try to save a favorite or print a PDF, I am required to re-enter my login. After loging in (again) nothing happens.  VERY FRUSTRATING.

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


Missing instructables

Seven of my instructables are mysteriously missing. e.g. https://www.instructables.com/id/Home-made-cannoli-forms/ https://www.instructables.com/id/Computerized-video-security-setup/ https://www.instructables.com/id/Linux-screen-play/ https://www.instructables.com/id/Statusnet-the-Twitter-clone-setup/ https://www.instructables.com/id/Hp-Jetdirect-home-automation-device/ Why????

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


Pet Feeder

There is a feral cat that I have been feeding, but I am afraid it now depends on me for food. If I go on a vacation I want to be able to feed it dry kibbles, but there are raccoons and other critters that would eat food left out. I have looked at several DIY feeders but they are too complex for my taste. What I would like is something that, when it got a power input from a 24 hour timer, would send power down to some sort of solenoid that I could use to open a box of food. But I would need a series of these in sequence so that the next time the timer sent power it would complete a circuit to the next solenoid the next day and then do it again for up to seven times (so I could be gone for seven days). What sort of device would sequence power to different solenoids to open a series of boxes? Thanks in advance.

Topic by tulsun 7 years ago


Push button duration measurement inside FPGA

Hello, I need to measure the time between press and release a button in an FPGA (time between rising and faling edge) and dispaly the time result the seven segment dispaly of the FPGA , I do somethink but it doesn t work , can any one help please or give a program ,????

Topic by mirabelle275 4 months 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?

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


Lego meets Arkham meets Toy Story....

I saw this on Make this afternoon, and thought I'd pass on a direct link to the creator, Mike Foy.  He's got seven pages of variously brutal, brutish, or just post-apocalyptic Lego minifigs and scenes.  The couplet is especially chilling -- sort of a mashup of Shelley and Kayyam. Thousands of souls with faceless faces Roaming the world in desolate places.

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


Dear Instructables, how would i go about creating a 3 digit up counter that reacted to 3 buttons of different values?

Basically i'm designing and making a scoreboard for a rugby match for an a-level course. I'll explain the buttons of different values first, in rugby (for those who don't know) there are 3 different ways that the score can increase 2 points (conversion), 3 points (penalty, drop goal) and 5 points (try). I already know how to make a circuit to increase in 1's but i wasn't sure if you could do it with 3 different values in the same circuit. I was thinking of using a 4024 seven bit counter connected to a bcd to led decoder then to 7 segment led displays. is there anything out there which could make my job easier or do you have any advice or could you help me? Thanks alot, Hrimiller Edit: 4024 seven bit counter connected to a bcd to led decoder then to 7 segment led displays

Question by hrimiller 6 years ago  |  last reply 6 years ago


Popcorn...On The Cob?!

I've heard of a way to make popcorn on the cob. I just want to know if what I heard is possible, or if you need a special type of corn or not. Ok, here it is: Freeze a cob of corn for one hour and thirty minutes. Cut off the leafy end Put the cob of corn into the microwave for seven minutes. At three minutes it should start popping. I think it says any cob of corn will do, but I'm not so shure.

Topic by Spl1nt3rC3ll 11 years ago  |  last reply 11 years ago


Could someone make these guns?

I was wondering if someone could make these guns out of knex. the real ones are manafactured by FN Herstal which are a belgian company. i know that some of these have already been made out of knex, but im looking for new ideas. here they are: (1) fn scar (2+3) f2000 (4) fn p90 (5) five seven tactical (6) fnp9 da / sa

Topic by ~KGB~ 9 years ago  |  last reply 7 years ago


USB hub only 1.1 compatible? Answered

Hi, After looking at this USB hub microcontroller page I saw a part where it said this "The TUSB2077A hub is a 3.3-V CMOS device that provides up to seven downstream ports in compliance with the USB version 1.1 specification"Does that mean it's only USB 1.1 compatible?

Question by thermoelectric 10 years ago  |  last reply 10 years ago


Digital Logic Design Project Combinational Lock?

In this project you are required to design a 4 digits combination lock (not using arduino)  The project is such that it can be reconfigurable i.e. there should be an option that we can change the password of the lock at run time. Input to the system is from the hex keypad. Output of the system is ‘open’ and ‘close’ words displayed on a seven segment I used registers,flip flops, mux ,comparator  but couldn't get the desired result

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


Bullet Types and Designs

This is a place to post your various bullet types. I have included a short tutorial for what I call "Buck Shot" because it sort of has a spread of blue pieces. The other bullet is also in Gamer5's "Powerful Guns" forum topic. The other bullet isn't very special except that it has a hard impact, but it has a short range."Buck Shot"* Materials: Any Knex gun in which the ram comes almost (within 1cm) of the end. Seven (7) blue spacers (there are six (6) in the picture, though you need Seven (7)) One of those launchers that you can get in some sets and that you flick to shoot a Missile about ten feetPicture 1: MaterialsPicture 2: Cock the gun and put the launcher in the barrelPicture 3: Put the spacers in the launcher in the barrelPicture 4: A self-explanitory picture of the other bullet I mentionedPlease post any of your bullet designs and what they are good for.*I have posted this here instead of in a seperate instructable because it is too short to have it's own instructable.

Topic by Whaleman 12 years ago  |  last reply 9 years ago


I would like some assistance in designing a digital LED display vacuum/boost gauge for a turbo application. Answered

Hello!   I'm new here. I would like some assistance in designing a digital LED display vacuum/boost gauge with both a linear LED display as well as two seven-segment display modules.   I plan to use a standard automotive MAP sensor to provide the -30Hg to  +30psi signal.   What I envision is having the two seven-segment displays sit next to a row of 28 green LEDs for vacuum to -28Hg, 7 yellow LEDs for pressure from +1psi to +7psi, and 8 red LEDs for pressure from 8psi to +15psi that light up incrementally as the pressure increases or vacuum increases from a center point of zero (clear LED always on).  The problem is that I have absolutely NO idea of where to start other than the layout of the LEDs.  So any help would be appreciated. Thanks! Skullmaster20  (Chris) Edit -----  This is a drawing of what I'm trying to create, and a picture of what I'm going to replace.

Question by skullmaster20 9 years ago  |  last reply 9 years ago


Connecting batteries in series without wasting the mAh? Answered

Okay, if you connect two 1.5v 1000mAh AA batteries in parallel, you'll get 1.5v 2000mAh, right? And if you connect two 1.5v 1000mAh AA batteries in parallel, you'll get 3v 1000mAh, still correct? What if you connect seven 1.5v 1000mAh AA batteries in parrallel and one 1.5v 1000mAh AA battery in series, you SHOULD get 3v 7000mAh, will that work?

Question by j0rd4nkzf 8 years ago  |  last reply 8 years ago


libby's potted meat food product?

Here is the ingrediants list: mechanically separated chicken,pork skin,partially defatted beef fatty tissue(???),partially defatted pork fatty tissue,vinigar,salt,spices,sugar,flavorings(more specific please??),sodium erythorbate,sodium nitrate eew! they sell this as f00d!? why is this stuff legal? the number on the can is18007275777 it says to call 10 am to seven pm monday through friday eeww

Topic by Zaphod Beeblebrox 9 years ago  |  last reply 9 years ago