I think a $10 or less projects guide would be useful and pretty cool.
Posted by Danny09 9 years ago | last reply 9 years ago
I need help building a 2 led light that when you press the button it only stays on for 5 to 10 seconds. i want to have a light sensor so it only works during the night. i guess the exact thing i want is like those childrens balls that when you bounce they flash for a few seconds. i tried buying one and wiring the two leds together to stop the fash but as you can notice my skills with circuits are non existant. please someone help!!
Asked by rebeltruck 6 years ago | last reply 6 years ago
Hi, im planning on creating a portable Rasberry Pi Desktop. I found a bunch of circuit plans to run a RPI and a 10" Display - however iam not statisfied with what people came up with. 1. Issue - in the circuits i found they connected a booster to a 3,7v Lipo Battery to run a 5V Rasberry Pi and a second booster and the same battery to run the Display. This is a pretty incomplicated but impractical design if you ask me - the benefit here is that the boosters allow you to charge both batterys whilst the devices are running - but you need to connect 2 different cables. I would like to be able to charge the System with only a single power cable (Micro USB) attached. 2. Issue - The 10" Display does run on 5V, 980mA - but it is not reccomdendet to use it under 6V, 780mA - as a person who likes staying on the safe side - i would like to run it on 6v. Can anyone come up with a concept so i can run both the Rasberry Pi and the Display on the same Battery and charge the Battery whilst the devices are running? I thought about using a 6v Lipo Battery pack - but i need something to lower the voltage to supply the Pi correctly. Is that a good idea? Can you reccomend some other solution? PS - Is there also a way to monitor the remaining Charge in the Battery?
Asked by MatzoM 2 years ago | last reply 2 years ago
I have Pinacle Studio Software. After opening it is not opening any file for the few days ( previously it used to open) for editing purpose. Today after opening the software, i got the pop up as folows. UMI Usermade ISR IRQ Source IRQ Priority - Low - Medium IRQ Properties High Statistics Terminate UMI : Warning No IRQ Driver selected ok Kindly advice me further course action. Regards Bala TV
Posted by balatv44 11 years ago | last reply 7 years ago
Hey guys. Well, currently, didexo and I are working on a MAC 10. Some of you may have seen his 'ible on the mech he was/is planing on using, so I took that and make something more efficient than his was. I need help on four aspects. 1) Sights. I would really like to see more efficient sights. Ones that look more correct, in other words. 2) A good trigger guard. I truly could not figure out what to do on this score. 3) A good way to make the handle curve. 4) A good way to make the barrel. I cannot figure this out...kinda weird actually. This prototype shoot at least 40 ft., and I am convinced that it could look and preform better with some help from you guys. So, lets here some suggestions... -The Red Book of Westmarch
Posted by The Red Book of Westmarch 5 years ago | last reply 4 years ago
I am a software developer by trade and have little or no experience regarding LED and/or electronic designs. I am hoping someone here can help with a project I am working on using high brightness LEDs. I have studied several 'instructables' and specifically dan's "Circuits for using High Power LED's." My project consists of a few high brightness LEDs that will be placed in a high ceiling room with the brightness controlled by a microcontroller based on the light in the room (time of day, sun in window, etc). The microcontroller will use photocells to determine the brightness in the room and then adjust the LED using PWM pins. The LED is 10 watt and approximately 450 lumens. Attached is a circuit I drew as a starting point and would like help in determining if it will work, I am close or does it need to be trashed. I am not sure what the value for the resistor should be. Below are some calculations but not sure if I am on the right track or not. No need to be kind, I am more interested in getting it right and not losing any 'magic puffs of smoke' from any of the components. Here are the specs: LED IF: 1.6 A Peak Forward Current: 1.7 A Forward Voltage: 8 V LM350 (heavy duty version of LM317 IO_MAX: 4.5 A 1.2 - 25 V adjustable regulator BC337-40 Collection Current - Continuous: 800 mA dc Total Device Dissipation: 625 mW Resistor: 5W or 10W Voltage Amp Ohms Watt 8 1.60 5.0 12.8 8 0.80 10.0 10.0 8 1.10 7.5 8.5 Note: LED and components will have adequate heat sinks.
Posted by desnotes 9 years ago | last reply 2 months ago
What are your top 10 songs? Share them here! Let out your inner music, let the world know your songs! List your top 10 songs in a comment below and then I will pick the best answeer to someone who has a good taste in music :)
Asked by Hiyadudez 9 years ago | last reply 8 years ago
LEDs are an incredibly useful and versatile source of light. Use just one of them to make a simple indicator, or wire up a whole bunch and you can create a bona fide high power light source. There are tons of applications for LEDs, and there is certainly no shortage of ideas, projects and helpful feedback at instructables. To help make sense of it all, I thought I would try to pick out 10 of my favorite LED instructables that are great for the LED beginner and the expert alike. This list isn't hierarchical - I like all 10 projects. Instead, it's loosely arranged in ascending level of complexity, so newcomers to LEDs might want to start at the beginning and work their way up (or down as the case may be).Drum roll please...1. LEDs for beginners is a first time guide for anyone looking to learn a little bit about how to wire up one or more LEDs.2. How to solder is a guide that explains how to solder wires, electrical components and more and assumes no prior soldering knowledge. If you're going to work with LEDs, chances are you'll need to do some soldering, so this could be a useful place to learn some skills.3. LED Throwies is a super popular and simple instructable that shows you how to take a magnet, a battery, some tape and an LED, and make a cool light that will stick to anything magnetic.4. Fridge Lights is an instructable that shows you how to turn your refrigerator into a canvas for LED art. It has a little more involved in it than LED Throwies because you have to prepare your refrigerator surface a bit, but its still a great project to get started on working with LEDs. 5. LED Football is a simple project that embeds LEDs in a Nerf football so that you can see it in the dark. The football emerges from the process relatively unharmed, and from the pictures it looks a lot like a cool flying saucer.6. LED Bikelight V2 and How to build a 1,024,000 mcd portable light take multiple LEDs and wire them together to make high power bicycle lights. There are many bike lights on the site besides these two that are also great, but I like these two because they are really BRIGHT. 7. Blue LED Light Box is a bedroom light that helps combat Seasonal Affect Disorder (SAD) and the winter blues by letting you bask in 18 watts of LED power. If you like the first iteration of this project check out the Blue LED dawn simulator for Soleil Sun Alarm add on that controls the brightness of the LEDs according to a dawn simulator alarm clock.8. Spoke POV: LED Bike Wheel Images is an instructable that puts LEDs in motion and creates persistence of vision (POV) images of your choice right on your bike wheels as you're riding. If you have never seen POV images before you should definitely check this out as there are a bunch more POV instructables on the site. It's a public mobile display for your bike!9. Watch futurama on an 8x8 pixel screen shows you how to make an LED display that you can use to "watch" tv on. While the actual display doesn't have enough pixels to actually create a recognizable image, I like this instructable because even though I work with technology, I think I secretly want to live like a caveman, and it's this kind of forward thinking backwards technology that gets me going.10. Microdot - wrist watch LED pattern timepiece is an instructable that shows you how to build a unique LED watch. It's one of the more advanced LED projects on the site, but rgbphil offers good support in the comments section and should you decide to build it ever you'll end up with one heck of a watch.Instructables HQ is going to be mailing stickers to the authors of the projects on this list as a mini prize for making great things with LEDs. Anyone else who makes a list of their favorite instructables and posts about it on the forums gets stickers too!
Posted by noahw 11 years ago | last reply 7 years ago
What movies would you give a 10 on a 1 to 10 scale? Mine would be- The Empire Strikes Back, Back to the Future, Spirited Away, The Dark Knight, Harry Potter and the Prisoner of Azkaban, Raiders of the Lost Ark, Nightmare Before Christmas, Avatar, The Sixth Sense, Lord of the Rings: Return of the King
Posted by FFVIIBOY 8 years ago | last reply 6 years ago
I need a very wide head 10-32 bolt for a project I am working on, because a small head does not hold enough friction against my other part for my needs. The best solution I think would to get a 10-32 carriage bolt (2.5 inches long), but I cannot seem to find this anywhere. Is there a store anywhere that sells low quantity (I need about 5, but could settle for 10-50 if I needed), but I cannot seem to find a store that sells this apparently odd screw size...
Asked by astroboy907 5 years ago | last reply 5 years ago
First off, I would like to give notice to Electronics Projects for Dummies for most of this info.I wanted to make a site with many of the best sites to buy Electrical Parts, because it can sometimes be a strenuous activity. I have 10 here, because if you can't find something on one online store, you might be able to find it on the next.Reynolds ElectronicsReynolds Electronics is a good supplier of remote control components, micro controllers, and robot kits and parts. One feature that stands out on Reynolds Web site is the clear and helpful project/circuit tutorials. You can also find links for educational books on topics such as robotics and microcontrollers.Hobby EngineeringHobby Engineering is a sit slanted towards the hobbyist. This site carries some useful items that can be harder to find from other providers who are catered towards the corporate customer. it also has a good supply of micro-controllers, robot kits, parts, ad miscellaneous components and tools.All ElectronicsAll Electronics has an incredible selection of many of the useful items you would use to build your project. They are very inexpensive and it is easy to find your way around the site. This site also has a "consumer comments" section where the consumers get to talk about the quality of the product and more. (Thank you westfw)BG MicroBG Micro is a cool site for rare and pretty neat gadgets as well as a nice selection of alot of the items one will need for a weekend project. There is also a very nice search engine at the top which lets you search for an item you can't find on the left. (Thank you Las Vegas)Jameco ElectronicsJameco has a very nice site catalog. It's not very big that you sspect a forest was sacrificed in its making. I has great color photos with relatively easy to find components. This is one supplier wih a low price fuarantee which means that if you can show a part offered for less, the lesser price is honored. jameco also provides lower priced generic products as well as name brands.DigiKeyDigi-Key is a large distrbutor of components from various manufacturers, offering a very large catalog with lots and lots of choices. However, the site uses small print that might be hard to ead. The catalog includes line drawings but o part photos, but it does do an excellant job of labeling the parts. Overall, Digi-Key has a huge selection of products, but they might need a little looking to find them.loading...Mouser ElectronicsMouser ElectronicsAnother large distributor of components from various manufacturers is Mouser. I like how Mouser's site allows you to compile separate orders for different projects. You can come backa s many times as you like to complete your order and make your purchase. We also like how Mouser label parts because the labels are easy to read and provide alot of information about the specific part.Like Digi-Key, Mouser provides a very large catalog.RadioshackRadioshackEveryone knows Radioshack!. This electronics convenience store is pretty much like any food convenience store: CONVENIENT BUT EXPENSIVE. If you are stuck at 4:30 on a Sunday afteroon needing a small part to keep working on your project, this store is right for you. Be aware that not all radioshack are equal.Fry's ElectronicsFry's ElectronicsFry's has stores in nine states, and if you are lucky enough to live near one you can browse the isles in person. Fry's stocks all kinds of electronics and parts including an EXCELLANT selection of IC chips.Goldmine ElectronicsGoldmine ElectronicsIf you are in the market for bargains, try Electronic Goldmine.. This online store often offers sepcials that can save you money. Based in Scottsdale, Arizona, Electronics Goldmine offers great help with international orders and also offers wholesale items on auction on eBay.Quick Tip: Try clicking Electronic Goldmine Treasure Ball for the best deals!FuturlecFuturelec offers a very nicely done site with color photos of the parts that makes for easy browsin. Futurelec also offers semicnductor news links and also links to recently added parts to help you keep on the top of the latest and greatest as well as PCB design and manufacturing services.[htpp://maplin.co.uk Maplin]MaplinThe British suppplier Maplin has stores scattered around the U.K. and also offers an online store.Unlike electronic gadgets and appliances that operate on different voltages in European contries, electornic components are pretty standard. Although Maplin will ship overseas, you might want to check out U.S. Suppliers first.SparkfunSparkfun was originally a PCB Manufacturer, and turned in to a company well beyond their expectations! They have a large variety of PCBs, LEDs, and MANY more everyday electronics components. The site is well organized with so much to choose from!
Posted by Brennn10 11 years ago | last reply 23 hours ago
The new You page does not have the little box that shows what the most recent 10 comments that people have replied to you. When you are on a slow computer, having to click that extra link can take a lot longer than it used to. I proffered the old way, but it is nice to have the little thing that says how many ibles and forum topics you've posted. Who agrees?
Posted by Bartboy 9 years ago | last reply 9 years ago
I have a blown thermal fuse in one of my fog machines,it is 10 amp 250 volt 133 degrees c.can i by pass it safely?(there is high temp limit switch on heating element)or can anyone tell me where i can get one or its equivalent?i found some online but they in thailand.hoping someone who knows more than me can tell me where to get this locally.the blown fuse has some numbers on it :se fuse sf129 e tf 133 degrees c please help
Posted by hvacmac 8 years ago | last reply 8 years ago
So, one day I was thinking during school. And, I came up with an idea. What if you had a rank on how active you are in Instructables? Like for example, I came up with rankings from 1 to 3 which should be up to 10 1: Infant - 0 Instructables, 20 comments 2: Toddler - 1 Instructable, 70 comments 3: Pre - k - 1 - 3 Instructables, 120 comments etc. I was wondering, what do you think of this idea?
Posted by Flumpkins 9 years ago | last reply 9 years ago
I have a Mac OS x Server 10.5.6, dual 2.3GHz PowerPC G5 8 GB Ram, i have setup server admin on this machine however, I am wanting to use this for specifically as my netboot server, i have created the images and when i put them on this devices internal hardrive, everything works just fine but when i move them over to the raid storage i have set up, Server Admin recognizes the images and allows me to enable them and also make them the default images however when i actually try to netboot a machine, i get the Grey Screen of Death, I see the globe spin shortly then the grey screen populates the screen and i see a bunch of different languages on the machine then i have to reboot to get rid of this screen... How do i make my netboot server be able to serve these images and save the client data to the raid storage???
Asked by enixw 9 years ago
The title just about says it all. I'm wondering how to do this with a 555 timer. Thanks in advance!
Asked by aarroozz 7 years ago | last reply 2 years ago
I'm short of 10$ from buying some stuff from Adafruit. If anyone could give me, I'll give them back when I can redeem one. Need that stuff urgently to complete my project otherwise, I would have waited till I could redeem one Please help I'll surely give back the money
Posted by techno man 1 year ago | last reply 1 year ago
In the best talk of the 2008 Web 2.0 Summit Al Gore called for president-elect Obama to make a man-on-the-moon-like pledge to generate 100% of the United States' electricity from renewable and non-carbon sources within 10 years. Al Gore is truly an amazing orator, and when he got fired up about the climate, renewable energy, energy independence, and how it could play a centerpiece of our economy, I got fired up and so did the rest of the audience. What really sent shivers down my spine was this observation: When Neil Armstrong first stepped on the moon, the average age of the control engineers running the mission from Houston was 26, making them 18 when Kennedy made his pledge in 1960.Generating 100% of our electricity from renewables and non-carbon sources in 10 years (let's call it 100-in-10) is the same caliber of challenge, but unlike getting to the moon -- which was something only a government could do at the time -- building a full economy of renewable energy should be orchestrated by the government, but requires the efforts of countless makers. I seem huge numbers of opportunities, both large and small, to make a difference and have impact. Get an engineering degree and invent a new type of powerplant, design and publish plans for low-cost DIY solar home heaters, be an advocate of renewable products and services. It's clear that a lot can happen in 10 years, and even if Obama doesn't call for 100-in-10, the time to make a difference is now. This is cross-posted on Makezine here.
Posted by ewilhelm 10 years ago | last reply 8 years ago
"The Star Wars kid has gotten a lot of shite over the years, mainly because he's not a professional. He simply didn't have the training necessary to pull off that fight sequence. On the other hand, there are lots of professionals who do have the training and simply lack the means to wield it. I'm talking about people like Aragorn, Captain Jack Sparrow, and Westley. If somehow you could only put a lightsaber in these fearsome warriors hands...Ugh, blogging. What am I even talking about? Let's just be ourselves, you guys. I found a bunch of clips on YouTube where people took fight sequences from other movies and overlaid lightsabers on top of them using magic, and they are hilarious, and you're gonna love it."Link
Posted by Tetranitrate 10 years ago | last reply 10 years ago
WHATS UP IAM BUILDING MY 4TH TALL BIKE. 2 OF THEM ARE 4 1/2 FT TO 5 FT TALL AND 1 IS 61/2 T 7 FT TALL I USED NUTS AND BOLTS ONLY NO WELDS AND BELIEVE IT OR NOT ALL THREE ARE HOLDNG TOGETHER VERY WELL ,I WANT TO GO UP 1O FT ON THIS NEXT ONE BUT DONT WANNA PUSH THE LIMITS OF PHYSICS AND GRAVITY SO WHAT TYPE OF WELDER SHOULD I USE TIG MIG ARC I D K
Asked by GINOOO 7 years ago | last reply 7 years ago
Hi. I have an Arduino setup with 2 individual relay boards controlling two 240v power outlets. The relays are housed separately from the Arduino and I have connected the two via a standard ethernet cable. The relays I have are both 12v powered and switched via a 5v Arduino digital pin. I have currently wired the following. Orange and orange/white ---> 12v+ (from a 12v plug transformer) Blue and blue/white ---> GROUND (connected to both plug transformer and Arduino GROUND) Brown ---> Switched +5v from Arduino to relay 1. Brown/white ---> Switched +5v from Arduino to relay 2. SITUATION. One of these relays for some reason isn't working properly. The board is receiving the right power but the relay itself is not clicking/switching. Maybe sticky contacts. The whole thing is already wired and the unused cables of the network cable trimmed so I cannot use them. MY QUESTION I have a spare single 5v powered relay board which I could replace the faulty 12v with, but with no wires left to connect it, could I pinch one from the orange pair that I am sending 12v through to the first relay and use that for the 5v to the replacement one? In a less round about summary... can I send 12v+ through a single strand of ethernet cable with a run of only about 30cm? Thanks, Steve.
Asked by steviecuk 1 year ago | last reply 1 year ago
CNC MILLING MACHINE, JEWELLERS ROLAND JWX 10 Milling Machine FOR SALE CAD CAM Technology, BARGAIN $3000 Australian Hi, I have a used ROLAND JWX 10 for sale including all running software, reason for sale were doing a major upgrade, I`ts for sale again, I had offers and really didn`t want to get rid of this machine! I love it!, you will too
Posted by jewellerjon 5 years ago | last reply 5 years ago
I want to be able to play my portable PS2 on the ride to Colorado in February. It's a fourteen hour drive. I would probably play much of the way up. It will draw 1.5-2 amps. Will this be a problem? Will it cause problems for the battery? Can it handle that for 10 or so hours, with stops in between? Oh yeah, duh! It will draw the full twelve volts. I think the PS2 uses 8.5, but 12v comes out, so... Help?
Asked by snowpenguin 9 years ago | last reply 9 years ago
I need to power a single 4w speaker, but can't get an amp for it, so I need to use the tda2003. Should I decrease the circuits voltage? Or is it not possible?
Asked by DangerousTim 4 years ago | last reply 4 years ago
Hey guys, just wanted to let you know I've just hit over 10,000 views. I want thank everyone on Instructables that has subscribed, favourited and made a comment on my Instructables as I wouldn't be here if I wasn't for you lot so thank you very much.
Posted by Zombiekiller-93 4 years ago | last reply 4 years ago
I need to convert 7.4v to 10.2v. I have a Li-ion battery pack that outputs 3700 mAh, and a (revision c) gamecube that requires a minimum of 10.2v to function. I would like to power the gamecube using this battery pack, and avoid having to buy more cells and a new protection circut. Can anyone help me make this step-up converter? (Preferably using a TI converter). Thanks!
Asked by ryguy425425 8 years ago | last reply 8 years ago
Hi All, Here's what I need to try and achieve: - I have a servo that I had modified and have removed the circuit board. Now it just runs from 3 v - I want to reverse the servo once a momentary switch has been activated for 10-15 seconds - once time is up the servo reverses again I thought about using a 555 monostable circuit which would give me the amount of time, but I am unsure how to achieve everything above. I'd love not to have to use an arduino if possible. Any ideas? Thanks.
Asked by lonesoulsurfer 5 years ago | last reply 4 years ago
After several of my contests drew no entries last year, I decided to give the community a break and wait a while before hosting another contest. As a result, this contest has come 6 months after its closest predecessor began. In addition, the requirements for aircraft have been greatly relaxed. Requirements: 1. Aircraft Requirements: Ability to fly at least 10 feet Aircraft must be named 2. Instructable Requirements: 1 page strictly devoted to materials required in construction 1 page explaining how to fly the aircraft The instructable's license must be: "Attribution Non-commercial Share Alike (by-nc-sa)" This sentence and link must be displayed on your entry's intro page: “This instructable is an entry in Paper Airplane Contest 10.” Prizes: For this contest I will award the publishers of the top 5 paper airplane instructables* one patch each. Each patch will feature its respective aircraft. The first place winner will also receive one 1 year Instructables.com Pro membership. The second place winner will also receive two 3-month Instructables.com Pro memberships. The third place winner will also receive one 3-month Instructables.com Pro membership. Prize Distribution: 1st Place: 1 Patch One Instructables 1 Year Pro Membership 2nd Place: 1 Patch 2 Instructables 3 Month Pro Memberships 3rd Place: 1 Patch 1 Instructables 3 Month Pro Membership *Multiple entries are allowed. To keep the distribution of patches wide however, each entrant can only win one patch. How to Enter: To enter this contest, you must send me a private message entitled “My Paper Airplane [Your Member Name Here]” with your instructable's URL included. I will then put the link and author's name onto a list on this topic under "Entries". Judging: I will judge entries based on aircraft performance, and quality and presentation of its instructable. The contest begins Monday, March 12, 2012 and ends Friday, April 20, 2012. Entries must be published between these two dates. From April 20 to April 22, I will be judging all entries. I will announce the winners of the contest on Monday, April 23, 2012 and issue them their prizes Tuesday, April 24, 2012. Entries: e=mc^2: The Bat Bot1398: The Breeze abraham_no_chiz: The Lightning Bullet OfficerZawOoKoSCPD911: The Mighty Falcon Results: OfficerZawOoKoSCPD911: The Mighty Falcon Bot1398: The Breeze abraham_no_chiz: The Lightning Bullet e=mc^2: The Bat
Posted by OrigamiAirEnforcer 6 years ago | last reply 6 years ago
I want to download Ubuntu Linux onto a flashdrive, and then be able to plug that into a computer(running Windows XP) and run off of Linux from the flashdrive. Can I do this? As in, I plug the flashdrive into the computer, then restart it. After it reboots, it starts up in Ubuntu, then just runs on Ubuntu like it would on a computer that normally runs on it. But instead of using the computer's hard drive, it stores on the flashdrive. Then, when I'm done, I can shut down the computer, unplug the flashdrive, and then when I boot the computer back up, it runs off of Windows XP like it normally would, like nothing happened. How would I do this? Is there a special distro of Linux I would have to do this on, or would it work just normally on Ubuntu? I would prefer not to partition the hard drive.
Posted by metrogdor22 8 years ago | last reply 8 years ago
I am new to ubuntu and am using gnome 3 for my desktop in ubuntu 11.10. I can change the theme and window theme in advanced settings (a.k.a. gnome tweak) but next to the drop down menu to select the shell theme there is an icon with an exclamation point. When you mouse over it, it says "shell user theme extension not enabled" How do I fix this so I can change the shell theme? Like I said before i can change the window, gtk, and icon themes. Thanks in advance!!!
Asked by Tree Hugger 6 years ago | last reply 5 years ago
I have a dkduino and a usb to serial converter, both running on a profilic usb to serial chip, when i look at them in device manager, th has a code 10, ive tried updating the drivers and whatnot, what should i do?
Asked by The nerdling 5 years ago | last reply 5 years ago
Hi, Well, just realized something strange. I have a laptop which I dual-boot XP and Ubuntu on. When it starts up you get that select operating system screen. The question is... how do I boot XP in safe mode? It gives me the option for a recovery mode for Ubuntu, but no sign of a safe mode for XP. Thanks
Asked by transistorguy 7 years ago | last reply 7 years ago
Hiya! Well, looks like I got an old laptop, but the thing is.... it doesn't work. Dell Inspiron 8500/8600 series. It won't boot into Windows XP except in safe mode. Anyway, I was thinking of putting Ubuntu 10.10 on it and remaking it into an actually usable machine. Good idea, right? Well.... the thing is I don't know much about these older processors, so my question is: Are any of these 64 bit processors? Or are they just 32 bit? Intel® Mobile Pentium® 4M Intel® Mobile Pentium® M I want to install the appropriate type of Ubuntu 10.10, 32 bit or 64 bit. Its just that the processor needs to be compatible... Thanks!
Asked by transistorguy 7 years ago | last reply 7 years ago
Im looking for old cheap laptop's or desktops to scavenge parts from, i don't want any of your data, um..special pictures or your hard drives if they are not wiped.I am hoping to post an instructable on how to overhaul laptops or desktops.
Posted by Steamdnt 10 years ago | last reply 9 years ago
I am currently working on a mini A/C with a TEC that draws 12V and 12 amps and the relays I want to control it with have a rating of 10 amps 120v. not sure if it is as simple as this but 10A*120V=1200 watts. While 12A*12V=144 watts so in my eyes this would work because there is much less power flowing through the relay but I would like to request advice from someone who is a bit more knowledgeable then I. Help would be greatly appreciated thanks a bunch. Harry
Asked by harry88 4 years ago | last reply 4 years ago
I would like to find out how everyone thinks of the knexers here.Rate form 1 to 101= Horrible2= Very Bad3= Bad4= Not Good5= Getting there6= Okay7= Good8= Really Good9= Awesome10= Knex GodNow just rate these Knexers1.Mepain2.Oodalumps3.Perfect Duck4.Mykhailo5.Dsman1952766.I_Am_Canadian7.Jollex8.TheDunkis9.J-Chode10.PineapplebobTheGreatYou cannot rate your selfExample Post:1. 102. 103. 104. 105. 96. 87.8. 79. 810. 7
Posted by jollex 10 years ago | last reply 10 years ago
I'm using Mac OS X 10.6.4, along with a couple of other people on the same network. I have a firewall set up on my computer While I am able to connect to most people remotely, using the command (in terminal) ssh [username]@[IP address] (I get the IP address by pinging the computer name) There are a couple of people where I come across the message of: "Port 22: Connection refused" (or something along those lines) Anyone know what's happening? Cos I'm clueless..... I've tried to see if removing the known hosts files changes anything, but it doesn't. I have no idea as to whether those people have firewalls set up or something Is there another port that could be used here or something (23 maybe..? I heard...?)
Asked by .Unknown. 7 years ago | last reply 7 years ago
I just bought 3..SONYMODEL SFF22C10 VDC 0.51 ADC BRUSHLESS FANs..from Princess Auto in the surplus section. It was just labled "Sony Blowfan", so I assumed that they were computer fans, so I could use them with my server I'm setting up. It turns out my server's motherboard doesn't have the correct outlet for the fans plugs. In fact, I haven't ever seen a fan with a plug as small as this is! I'm assuming that the red wire is positive+, the black is ground or negative-, and the white lets the motherboard control the speed. I will only need the + and -, I want the fan to go full blast all the time. It is only rated for 10 VDC, but could I hook up all three of the fans to one of the extra hard drive 12 VDC power cables (yellow and black wires)? Or do I need a resistor, with how much resistance? Also, so do I make the fan run full blast off of only power, when it needs the white wire to have a signal?This question has been answered! See if you can help me with the next step of my project.https://www.instructables.com/answers/Server-Airflow-Help/-Shadow Ops
Asked by Arbitror 9 years ago | last reply 9 years ago
Actually I want to make LED multiple flasher by using 555-timer in my project board.... How can I make this??? The LED should flash alternatively......... At first I want to make 10 LED flasher.......... After that I would try more than 10.......
Asked by Sourav Sau 6 years ago | last reply 6 years ago
Again my Power Mac G4 is acting up again. This time it freezes usually after about an hour and a half of use. When monitoring activity monitor, the process called SustemUIServer turns red, and the computer freezes, also the CPU's shut down completely. If I an watching a video the sound will repeat in a little clip over and over again like a broken record. I have downgraded the computer from 2Gb of RAM to 1.5 as one of my sticks of RAM was bad, so obviously it is not a RAM problem. Yes I have ran various RAM testing programs such as MemTest86, and that had no issues. Also with YouTube videos the video will freeze and the mouse wont move. I will post specs of the mac soon so you know exactly what we are working with. And for anyone wondering, it's running Mac OS 10.5.8, Leopard
Posted by iApple guy 5 years ago | last reply 5 years ago
I'd like to make dimmers for the Phillips EnduraLED 10 watt 12V bulbs. Preferably using slider switches. Like the audio industry uses.? I have a need for a total of 12 dimmers for a feature lighting project on my house.
Asked by lonny j 6 years ago | last reply 6 years ago
I have a circut with the following wiring and it works for what I have been doing, but I wan't to be able to dim the LED with PWM on the arduino. Right now the light is running at about 50 for the length on the analogWrite. There is really no difference between 50 and 255 in my opinion so I think something may be wrong. When the length drops below 20 the light doesn't even come on. This is for a bike light project and electronics aren't my strongest area. I am guessing there is some period of time the MOSFET needs to switch on and off and the arduino's PWM is just too fast for this but I am not sure. I have access to an oscilloscope so I can test to see if everything is working correctly as well. I just get meaningless jitter with an inner oblong sine wave when I have attempted to use it, so where would be the best points to attach the scope to get some meaningful data. (anywhere I wrote PMW i meant PWM). I would like to point out that the LED is Rated for 13V and I am running it on 11.1 V, so no problems there. Aslo I got it working using a 10k resistor between the gate and ground, the arduino, on PWM mode doesn't sink the current very well. I have included the correct diagram.
Asked by seedorfj 3 years ago | last reply 3 years ago
Hi all I am skint, having to make pressies for everyone this year, doing okay until i came to my two nephews, ones 10 and ones 12, does anyone have any ideas ? I am very crafty and have lots of stash, just dont have the money to go and buy a pressies, any help at all would be brilliant, thanks a lot Judie
Asked by ijustlovecraftymess 9 years ago | last reply 7 years ago