Can anyone help me give a simple project using logic gates...
Posted by ferdel 10 years ago
Hi friends I am Sahir An Electrical Engineering student. I want to make a project of controlling my room lights and fan via computer so that i can turn them off and on via computer and the status of on or off is also displayed on computer.I am confused how to start and from where. Please Help me in achiving it..........thanks
Posted by sahir khan 8 years ago
I notice in the sidebar area of my projects there's a little button with a trend line icon, which shows total views, today's views, and the referrer. Is there any further granularity available for that data, where I could actually get a graph of views over time, or a way to do that using Google Analytics for a project?
Posted by walter.warren1 3 years ago
Hello there techies, the project USB charger was proposed by me to our professor in physics II. unfortunately he didn't accept such project HOWEVER he was happy. He just said that our project is not yet satisfying. He wants us to do a power inverter. We will buy a 2 6-volts battery and series it and it will output a 200+volts with a 30watts and then we will insert any charger such as a nokia cell phone charger and then voila, it should be charging. Do you think it is possible to do? And another project I proposed is that we will make a REAL TIME CLOCK using a 7 segment. I already had a schematic from youtube. and it uses a decade counter ICs but unfortunately I think such ICs are not available in our country, can you help us sir? T____T
Posted by glennvontot 7 years ago
Here is a partial schematic....
Posted by Goodhart 8 years ago
For my one of my Mechanical engineering classes i have to make something for a final project and I can't think of anything to make. It just can't be a weapon and should incorporate multiple manufacturing processes (milling, turning, casting, threading, shearing, sawing, shearing, bending, etc.) I was thinking about building a tall bike, but I'm not sure i'll be able to find two bikes to use.
Posted by adamhakon 10 years ago
I'm looking for someone to help me build an Arduino linear measurement project. I need to measure less than 6" stroke with some accurate repeatability. I'm willing to pay for the programming and any parts I might need. Email me if you are interested in working on this with any questions you have... email@example.com Thanks,
Posted by rpmlou 1 year ago
Hello everybody, well im a student, and I need your help please as soon as possible!! I have to do a project to finish my last year, I was thinking on making something for deaf, like a game or something to teach them how to read, because I've read that most deaf child don't know how to read and it is all because they're parents.. This last year a group win the science fair making a wheelchair that is commanded by the voice, now they are in LA showing that... Or anything else to do!! anything helps! thanks a lot... by the way, im from Uruguay. Thanks!
Posted by tuki3 6 years ago
In a project I am doing, I have to send analog readings of a soil moisture sensor through zigbee. I have connected the sensor Vcc to 5v and ground; the zigbee Vcc to 3.3v and ground. The analog pin of sensor to Txx pin of adapter on which the zigbee is mounter. On the coordinator zigbee, i/o packets are being recieved..but it is always giving value of "020a" or "020b" irrespective of the data from sensor. I have also fed the analog data of sensor through voltage divider to keep it within 1.2v range..can you suggest what I am doing wrong??
Posted by kahoko22 2 years ago
I have several laptop and electronics parts lying around any suggestions on what to do with them for example I have several cellphones with cameras and screens and deconstructed laptops and the lcd screens for the laptop as well just need a good idea for a project with them
Posted by jdc187 8 years ago
I HAVE A SMALL PROJECT AND NEED SOMEONE TO MAKE IT FOR ME? I NEED A MINIATURE VALVE TO OPEN AND RELEASE FLUID ( ABOUT 2-3 OZ). BUT IT HAS TO BE OPENED BY REMOTE CONTROL . THE DESIGN HAS TO BE AS SMALL AS POSSIBLE AND REUSEABLE . AND I NEED IT ASAP IS THERE ANY ONE INTERESTED?
Posted by pinkitkat 8 years ago
And I'd appreciate it if you could check it out. It's right here. It's a calendar that I was trying to find, but never could. So I made my own design. The only problem is that it only makes sense to print up a few hundred at a time. So off to kickstarter I went. I'm really excited about it and hope it all works out. As an incentive for looking at it now the first few dozen people get it for $4 off. Thanks. The Big Picture: a continuous wall calendar for 2013
Posted by fungus amungus 5 years ago
Alright, well the mountain pine beetle is really eating up a ton of forests, and it's releasing a LOT of Co2 into the air. So I decided, since new trees would just get destroyed by the pine beetle again, why not find a crop (Preferably edible, inedible is just as good) that absorbs the most Co2 in the world (Next to trees). Basically, I'm looking to offset the Co2 that's being released in the forest by growing another crop. Once all the forests are destroyed, the pinebeetle population will die down, and we can replant the forests. Any suggestions?
Posted by A good name 9 years ago
Hello all, I am looking into an led project for my car. It involvs using 3w led's and I have no idea on how to "drive" these for 12v dc. I have looked into led driver's but they are a bit expensive in my opinion so I hope some of you electronic "guru's" can assist me. The specs are: 3w yellow led, forward voltage: 2.9-3.3v, forward current: 750 mA. I have a very slight electronic knowledge background (novice at best). I don't need a heatsink (don't think), as I will have 8 sections with 2 led's per section wired in series and they will be mounted to an aluminum bar. The led's will be connect to a chaser light controller circuit. I just need to know what kind of resistors I need (and/or anything else). The best way to describe my project is I am making a knight rider light for the front of my car. I had posted on an electronics forum and got a suggestion to do this. The only problem is it didn't work.
Posted by gizmo13 5 years ago
I have an unemployed 21-year old high school drop-out son, who has been in rehab several times. His dad is letting him stay with us, temporarily, despite my saying I want him out. (Son's room-mate is suddenly all excited about being a Jehovah's Witness -- my son's pagan lifestyle is not jelling well.) Being co-dependent and all, I am trying to find some kind of project to keep him busy and act as "barter for rent". We live in a culture-starved, neighborhood covenants enforcing, Republican or Die, suburban neighborhood. Backyard. Already have a shed -- although it's probably going to need to be replaced sometime. My son is very good at barbecueing. Any ideas?
Posted by LauraGrimes 10 years ago
Hey all, I was recently given a free garage door opener, and I was wondering, Is there anything fun or interesting I could do to/with it? Here is a picture or two http://i303.photobucket.com/albums/nn140/CairnisReed/IMGP0992.jpg?t=1260037889 http://i303.photobucket.com/albums/nn140/CairnisReed/IMGP0993.jpg?t=1260037888 (Rat Trap is to Makeshift 'Keep Out Of Box' as Garage door opener is to...?) Thanks
Posted by CairnisReed 8 years ago
Hi guys! I would like to get an opinion on my first ever project. I would like to link an Arduino module to my portable induction stove. I was hoping that it would be able to do this: ---------- START ---------- 0 min - Start recording sequence Press[Rec] Heating Value: 0 Systems records no change in heating level 1 min - Puts ingredients and increases temperature by 3 levels Press[Increase Temperature]x3 Heating Value: 3 System records an increase in heat by 3 levels upon reaching the 1st min. 7 min - Dish is heated up, let it cool for a bit, decreases temperature by 1 level Press[Decrease Temperature]x1 Heating Value: 2 System records a decrease in heat by 1 level upon reaching the 7th min. 9 min - Dish is cooked. Decrease heating level to 0. Press[Decrease Temperature]x2 Heating Value: 0 System records a decrease in heat by 1 more level upon reaching the 9th min. 9.5 min - Stop recording sequence Press[Stop] Heating Value: 0 System stops recording. Recording is saved and ready for 'reading'. ---------- END ----------- Upon completion of the recording, this set of sequence should be able to upload back to the stove to replicate an identical set of heat change with respect to time. As such, would this project be possible? I would like to modify on the existing parts on my stove that I have. It comes with an interface or some sort that is linked directly to the buttons on the stove. (the buttons available are some commonly used presets and timer settings and an increase and decrease button for the heating level and timer) Any opinions and feedback would be greatly appreciated!! Thank you very much!! - Eddie (Newbie in electrical and programming)
Posted by eddiewoo 5 years ago
I would like to know if someone could draw up a small circuit using a TIP3055 as a switch for these led lights,Im running these off a small circuit for a pir sensor, that uses a relay, and i want to use a Transistor or a mosfet because of size. I just cant do the math for the cir.here are the spec. for the led lights."Working input voltage :12vdc working power 36W . working current 5 amp I know that you have to feed the Base with a lower voltage, and the emitter goes to ground, and the collector get the 12vdc. tks for the help. I never was good at algebra in school, don't even remember it, ha ha ha
Posted by conntaxman 5 years ago
Here my instructableMy Animatronic Mod ProjectIn 2003 I made a casemod MONSTERMOD ( picture 1), Just a creature sculpture tearing out of a PC case.And It Didnt Move . So , I want the next MONSTERMOD to MOVE.Maybe to tell me that I have email.... Picture people's PCs having Heads .There favorite movie star or rock star maybe a animal. Maybe like Hal from 2001Space Odyssey .But, My animatronic Mod Has no A.I. But maybe one day. Im programmingthe 16 servo movements into the PC and press the play to play the movements a lipsync routine.Well, For Over 2 years now I have been working My Animatronic Mod.My Animatronic Mod is a floating creature head over a desktop case.( picture 2 IMG_1383.jpg)It controlled my a 2 Mini SSC II (http://www.seetron.com) this allow the computer to control 16 RC servos.16 RC servos = 16 Movements .I made the teeth out of dental acrylic, The samething denture are made of.Teeth and fangs are made 1st in tooth color dental acrylic and shaped.Then are placed in dental wax .,the mold is a silicone putty is place on the teeth allow to setup overnight.To demold the wax is melted away with boiling water leaving the teeth in the silicone putty sockets.This is called the lost wax process.( picture 3,4,)After I made the eyes out of dental acrylic ,Which is a molded ping pong ball is 40 mm .In half 20 mm sandwhich in between the 2 halves is a metal small metal ball 10mm give me a ball joint and socket.The iris is a painted metal washer. The veins are silk yarn And is cover with clear dental acrylic .The white of the eyes was changed to black color ,To give more of a alien look. ( picture 6,7)I molding the finished eyes alginate and casting them in ultracal 30, ( picture 8) Ultracal 30 is the hardest plaster made.And place them in the sculpture.This will be for Proper registration for the eyes in the skull.( picture 9 )I had to sculpt face in Roma Plastilina Clay ( picture 10)and mold it in silicone( picture 11a,11b, 11 ) This molding process called a matrix mold . A layer of water clay cover theentire clay sculpture and Ultracal 30 is place on top of the water clay .After setup ,Its demolded and water clay removed .This water clay has made a space for the silicone.Matrix molda thin layer of water clay is place ( picture 12 ) and made the core A .This gave me the thickest for the skin .Molded core A in silicone and a thin layer of water clay is place in this mold also this made core B.And this gave the thickest of the Skull. Now I have 2 molds.( picture 13,14 )Mold 1 is the Skin moldMold 2 is the skull moldI casted foam rubber in mold 1 ( picture 15,)http://www.monstermakers.com/foam.htmlTo make the foam rubber skin337 gms. base67 grams foaming agent33 grams curing agent15 flow enhancer24 grams gelling agent4 grams ammoniaThe room temp73 degrees 40%Using a Sunbeam MixMaster Mixer1. Speed #1 - 1 minute (to blend all components)2. Speed #10 - 3 minutes : blend all3. Speed #3 - 4 minutes : refine4. Speed #1 - 30 seconds :refine5. Speed #1 - 30 seconds : ADD GELLING AGENT ( picture 16 )6. Speed #1 - 30 seconds : Backturn the bowlFoam rubber can be tricky.Mold 1 was place in a Hot box oven for 11 hours at 125 degrees .= A very soft and flexable skin ( picture 15,16 )Hot box oven 3'x 3'x 3 " plywood box with foil insulation with a single burner. This must be watched.( picture 17,18,19)I casted urethane Plastic from smoothon.com in mold 2.This gave me the Skull,The skull was trimed and dental acrylic teeth and eyes were place inside the skull .The mechanics were place using R/C servos.The skin was painted with PAX ( is a flexible paint). The skin was glue on rubber cement to the skull .And the hair was glued rubber cement also and placed.Hair is from National Fiber Technology ,Hair 1 was Blended Black and Brown modacrylic with White and Brown Mohair and Natural Goat hair.And hair 2 Black with gray texturized modacrylic with Yak and Horse hair.The PCMy motherboard (MSI KT6) and AMD 2500xp video card (MSI 6600)The case is LIAN LI PC-V800B .To make the lip sync move ,I used VSA , Visual Show Automation , http://www.brookshiresoftware.comThis aloud me to make a lip sync animation routine. Synchronize with graphical audio MP3 file.Not only that My Animatronic Mod looks Wicked ,It Talks Back.(Picture 1st floor) ( Picture 2nd floor)I designed the animatronic so I could repair it if needed, And the support pipe is like a swing arm so I can work on the PC too. By removing the back of the skull. Inside there are 2 floors the bottom floor has 6 servos :1 Head Up + Down2 Eyes Up + Down and left + right2 Eyelids1 Jaw2nd floor 7 servos3 right,left and center Brows1 Nose3 upper lip wireAnd also 2 servos are in the Jaw for lower lip wireand 1 left + right servo gimbal= 16 servosWhen uncovered ,Here is 32 feet of servo cable.(picture32 feet )The only thing connecting to the PC and the Animatronic is a modular cable (Lookslike a phone cable). Which is plug into a modular adapter that plug into the PC's serial port . The end of the modular cable plug in Mini SSCII Serial Servo Controller.you would be surprise how many people are into making monsters. Ive beenmaking monsters , masks and makeup fx for 30 years now.I put my 2 hobbies that Ienjoy together.Computers and making monsters.Im a dental lab tech. for 20 years now .I make dentures for a living.Thank You so muchGary WillettTo see Video Demos http://www.youtube.com/willettfxhttp://www.servocity.com..................For Servoshttp://www.nftech.com/ ...................For Hairhttp://www.smooth-on.com/ ............ Silicone,Urethane PlasticbooksTechniques of Three-Dimensional Makeup by Lee Baygan Special Make-Up Effects (Paperback)by Vincent Kehoe Men, Makeup & Monsters: Hollywood's Masters of Illusion and FX (Paperback)by Anthony TimponeStop-Motion Puppet Sculpting: A Manual of Foam Injection, Build-Up and Finishing Techniques (Paperback)by Tom Brierton Stop-Motion Armature Machining: A Construction Manual (Paperback)by Tom Brierton MagazineCinefex
Posted by willettfx 11 years ago
Needed for a project :a motor, PVC pipe, l.e.d's any colour and a toy's helicopter propeller. do I need resistors ????
Posted by Alex Dee 6 years ago
Hello everybody, I have a big problem. I want to do for the optical pulse oximeter project was a link posted here (https://www.instructables.com/id/Pulse-Oximetry/?ALLSTEPS). But now, project's owner deleted it unfortunately... I need the code and the circuit diagram in there to do the project. this is an emergency. can you help me please? Can you at least provide me access to people who share the project's e-mail address? thank you and I am waiting for your help.
Posted by mervebdk 2 years ago
A while ago this was possible, and now that I'm interested in making a personal site, I was hoping to load and style my instructables content on my site? I made this to help when it was enabled (or obvious) back then. https://www.instructables.com/id/PHP-and-Project-Syndication/ Thanks for any consideration!
Posted by nak 7 years ago
Hello, my name is Michael and I am looking for a project buddy (like a workout buddy) to help maintain motivation when working on projects. I live in Toronto, and due to size constraints I cannot work on projects in my apartment. I have access to a workspace located at www.interaccess.org (corner of Queen St and Ossington). I am looking for someone who would like to join me in working on projects. Much like a workout buddy. The goal is to find someone to meet up with and to go work on projects together so that we can both help keep each other motivated. In terms of the projects involved - We can either work together on the same project together (one week we could work on mine, one week we could work on yours), - We could meet up together at the same place (the interaccess workspace) and work on our separate & respective projects. Me I am a mechanical engineer with a machinist license, and an electronics and software background. I am an excellent tutor and have excellent fabrication and coaching skills. The workspace also has some electronic tools and shop tools. Please let me know if anyone is interested in joining me.
Posted by Meek_The_Geek 9 years ago
I recently made a project and people cannot leave comments (I noticed after somebody messaged me saying they could not leave a comment). There appears to be no comment section at the end of the project. See https://www.instructables.com/id/Heat-Powered-Paper-Carousel/ I am using a PC with Google Chrome. I do not know what the other person was using. Thanks in advance for your help!
Posted by Teisha 4 years ago
Okay people, any help would be much appreciated. i need help finding a science fair project. Im a srd year high school student and well i guess i slack off a lot. but i need some ideas... please please please help me out....
Posted by mandy.mae 10 years ago
The World Clock Project takes a creative look at time. By taking clocks from around the world they're mixing time-zones and still keeping a relative view. It's thought provocative to think about time and how important it is to the human experience. Time is our most valuable currency, it's really the only thing we have. So it's interesting to see how important keeping track of it has been, we've been using Obelisks as sundials for over 5000 years, some of the most ancient artifacts from egypt were built to keep track of time.It's good to see that The World Clock Project is keeping time on our minds. Give it a shot, upload your clock and let us know where it is[http://world clock project upload http://worldclockproject.org/]-bg
Posted by lamedust 10 years ago
I JUST JOIN THE COMMUNITY RECENTLY.I AM FROM SOUTH AFRICA.I HAVE A PROJECT FOR LED LIGHTS,IT CONSISTS OF 24 WHITE LEDs IN PARALLEL AND I TESTED IT WITH 4 AA(1.5) BATTERIES(6V) AND IT WORKED FINE,BUT I TREID TO DESIGN A 6V REGULATOR SO AS TO USE IT WITH SOLAR ENERGY USING 7Ah BATTERY.I USED LM317 AND OTHERS BUT IT KEEPS HEATING UP EVEN WITH AN EDEQAUTE HEATSINK AND SOME WHERE FRIED,ANY SUGGETIONS,CIURCUTS IN SOLVING MY DALEMMA
Posted by temba 10 years ago
I am hoping to use some LED tealights for an upcoming project, but I want a way to connect about 20 tealights to one switch so I can turn them on and off at the same time. All the tealights already have batteries with them, I just figured there must be a way to bypass the individual switches, and use just one switch. I really have no idea what to do, as this is something totally new to me, but I am a fast learner, so if someone can just give me and idea of what to do, I'll try it on a small scale, and then work from there. Thanks!
Posted by Albino_Mag 9 years ago
Not a bug, just a heads-up.While I was writing my climbing gorilla Instructable, I hid it from the searches by marking it as "private", then made it public when I finished it.Unfortunately, it did not seem to turn up in the "recent" list, which confused me somewhat.I have worked out what went "wrong" - when you mark a project as private, that is also the moment used as the publish date, so if you make the project public, that is where it gets put in the lists.That could have been a problem for me, with the gorilla going utterly missing down the lists, but fortunately it was featured and it was seen on the front page.I have "hidden" a number of part-finished projects the same way, and I will now have to create new versions, copy-pasting the text over and re-assigning the images.So, as I said, just something you need to know.(Update: I was right. I've just had to re-publish my latest project because it came out as over a month old, waaaay down the recent list.)
Posted by Kiteman 9 years ago
Whenever you want to finish a prototype, what kind of checklist do you go thru? things like: How do you decide what case design to use, what materials for that same case, how to solder everything up, what makes you decide if you "lock" the Arduino on that project forever by soldering everything around it. If you decide to make it modular, what techniques do you use. What kind of material do you use to attach everything together: Hot glue? close everything down with screws, nails, staples (...)? How would you make it water-proof or make the project resistant to the weather (if it was something to be outside for a long time). If you have to use a lot of cable, is there any good pratice you would suggest? When do you use connectors and what kind of connectors do you use? I would love to see a video tutorial on how to properly finish up a project, and make it look beautiful inside a case. :) Thank you all.
Posted by SgtOneill 7 years ago
Goal: Build a HAL 9000 Series Computer Specification: "2001: A Space Odyssey" Website: www.hal9000project.org Instructable coming soon I watching "2001: A Space Odyssey" the other night and I decided it would be cool to build one. I've never managed a project this big, and don't plan to start doing it now, so hopefully people will step up and assume various roles and responsibilities. A project like this needs a program manager, deputy program manager, project managers, systems engineers, software engineers, programmers, graphic designers, web developers,etc. I'll assume the role of chief engineer and chief software architect. Also needed are an admin for the sourceforge project, and a webmaster for hal9000project.org. I don't plan on having any special rules or regulations, I'm just throwing this out there to see what comes of it. It could end up in a hairball of chaos, or it could evolve into a smooth running machine, although I suspect nobody will join in and it'll be just me with nobody watching. This is not a far fetched pipe dream. The IBM Watson has already beaten the reigning champion on Jeopardy. I'll be defining all the individual subprojects such as the speech recognition function, lip reading function, speech synthesizer (it will have the exact voice used in the movie,) facial recognition function, voice recognition function, object recognition, various other artificial intelligence functions, neural network, physical mockup, physical prototype, software simulation, etc. There is a distinct possibility of getting government funding and along with commercial grants, therefore, some people could theoretically carve a full time job out of this. That would work for me.
Posted by el_roboto_loco 7 years ago
Hello Everyone, I am a fifth year B.Eng student due to complete my degree in Electrical and Electronics in April this year. I am currently working on a project which with your help I'll be able to complete it. Here is the link http://igg.me/at/automaticwaterdistributionsystem/x/5875198 Share it with friends and family. Thanks in advance
Posted by tash7 4 years ago
I just made this post do discuss about the zeitgeist movement some of you may know it some may not so heres some link's http://www.youtube.com/watch?v=4Z9WVZddH9w ZEITGEIST: MOVING FORWARD http://www.youtube.com/watch?v=IJf52Ir10xA The Venus Project - Future By Design so I just want to know what do you people on instructables think about it.
Posted by batonas 5 years ago
I am trying to build an outdoor led based wall washer, the idea is to light a wall (from the ground up) using a golf cart battery and led lights. Now here is the tricky part the wall is 45 feet tall, and 40 feet wide. I have to admit that projecting this amount of light on such a large space has thus far been beyond my ability, if anyone has any ideas I would appreciate it.
Posted by bdevil 10 years ago