wierd coincidence!

A commerciall came on for on for 24 just as i was hitting the join button for this group! wierd isnt it?

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

Powering a 24 Volt sensor with an arduino? Answered

Hello!   Ok here is the issue. Right now I am designing a rain water collection system by having my down spout drain into a 55 gallon plastic drum. I want to cap the drum to avoid spillage. The problem is what happens when the drum is full and the rain is still coming in. I know there are plenty of mechanical ways to solve this problem but I wanna have fun with an Arduino I have laying around. What I am thinking is run a pipe out of the bottom that has an irrigation valve installed (for anyone who is reading that that isn't aware of what an irrigation valve is, it is and inexpensive solenoid valve that is used for unground sprinkler systems). I figure I will add a water level sensor to the inside of the barrel and then hook the sensor and valve together via my Arduino. From there type a little code and violaa I have an over fill protection device! Here is the problem: An irrigation valve is 24v and the Arduino is 6volts. I know I can get the 24 volts from a power supply down to 6volts via resister, but then how would power the valve? My goal is to NOT have to buy a 12volt 1" solenoid (i didn't want to spend a lot of money on this project). I am not sure if there is a solution to this problem, but being a very green/inexperienced electronics hobbyist figured could hurt to ask. Thanks

Asked by Mpc1055 3 years ago | last reply 3 years ago

How to Limit Current on a 24V DC Battery Charger? Answered

Due to what I feel is a Bad design on the charger. I'm trying to limit current coming from a 120V AC to 24 Volt Dc Battery Charger.  The Charger Is what is supposed to be a  Plain 10 Amp Only 24 Volt Charger. However when hooked to a dead set of batteries the current skyrockets up to 30-35 Amps and it trips the internal 20 Amp Breaker.  Is there something I can do to regulate the current down to a better amperage ?  Thanks In Advance. 

Asked by BrandonF260 1 year ago | last reply 1 year ago

24 volt motor run time

Hi all, We just finished a remote control lawn mower project that utilizes 2 24V wheel chair motors and two wheel chair batteries for drive power. The balde is powered by a gas engine. The unit weighs in at around 260 lbs and is used for some serious slope mowing. The issue I have run into is that I can only get about 1 hour run time before having to recharge. Does anyone have any suggestions as to how to increase the run time without decreasing power? Thanks

Posted by real57vetteguy 5 years ago | last reply 3 years ago

Minecraft tekkit server

Come join my tekkit server!  The url is furryserver.tk  We also have a map of the server at the same URL.  The rules are pretty straightforward, no griefing, and be nice.  If you are interested in creative, comment.

Posted by furrysalamander 6 years ago | last reply 6 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

18.5VDC to 12VDC or 18.5VDC to 24VDC ? Answered

Does any one know how to make a 18.5VDC to 12VDC converter or a 18.5VDC to 24VDC Converters

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

Did you miss me?

You may have noticed that I mysteriously stopped posting for a couple of days. I've been camping! I came on as a last-minute substitute when another leader was unexpectedly hospitalised, and whizzed off to Gilwell 24 with a small group of our Explorer Scouts. It's an awesome event for teenage scouts - from 09:00 Saturday, to 09:00 Sunday, 24 hours of non-stop activities without the requirement of sleep.  Four thousand Explorer Scouts took up the challenge, and almost all of them managed a full 24 hours of extreme Scouting. 3G Swing Archery Bushcraft Zone Bouldering Campfire Climbing (Outdoor rock and revolving wall) Craft zone Crate stacking Disco Fairground Flying Trapeze Geocaching Giant games Gilwell gauntlet Global Zone - including Shelterbox High ropes course Laser Clay Pigeon Shooting Mountain boarding Orienteering Outdoor arena Quad Bikes Outdoor Woodland Quaser Raft Racing / Boat Racing Rifle Shooting Competition Scavenger hunt Scuba Diving Slacklining Speed climbing Segways Simulators Technology zone Water rockets Assault Course Car driving Go Karts Power Boking Inflatables Fire Building Fishing Military Activity Team Speed Stacking Caving Zorbing As well crafts and other activities going on all the time (I had my first go at wood-turning at 14:00, and was soldering together an AM band radio at 22:30 (goodness me, the writing on a capacitor gets small later at night!)). Add to that a month's rain in about 20 hours, giving liquid mud on the scale of Glastonbury, it's hardly a surprise that every single Explorer fell asleep on the train home. Because my standing-in was very short notice, none of my electronics were properly charged, but I did get a few snaps of the atmosphere before my iPod completely died. I have never been so wet or so dirty on a camping trip, and I was taking it easy - it's the first time I've been forced to pack my tent away wet and muddy at the end of a camp. If you're a Scout or an Explorer, and will be over 13½ next July, why not take up the challenge yourself? If you fancy taking part, offering an activity, or otherwise getting involved in next year's event, they are already taking comments and ideas.  If you're not in Scouting, and didn't realise it was so awesome (or that girls are allowed at any age), then why not think about joining? (As an aside, I'd never seen Rock-It-Ball being played before.  Looks fun.)

Posted by Kiteman 6 years ago | last reply 6 years ago

مسلسل ابن حلال الحلقة 24 كاملة

مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة مسلسل ابن حلال الحلقة 24 كاملة http://egynewws.blogspot.com/ http://egynewws.blogspot.com/

Posted by ahli 4 years ago

What if 24 was set in 1994?

Jack Bauer and CTU doing their thing. I miss those geocities page :)

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

What should I make out of an old electric wheelchair?

I just picked up a electric wheelchair from Freecycle. It appears to be a 24VDC setup and I haven't tested it yet. It looks like I will have to get some batteries since the original ones are dead. My first idea is a trailer tractor. Like this: http://www.powercaster.com/ --used to help pull a trailer around by hand. Does anyone have any more ideas?

Asked by walkthewalk 9 years ago | last reply 7 years ago


That says it all. If I delete my most miserable instructable, I will drop to only 24 published.. Then will the robot change my orange color back to red ?

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

Step down transformer

Hi I would like to build my own power supply. i am a noob at electronics but hopefully this project will improve my skills... http://electronics-lab.com/projects/power/001/index.html This is what I want to build The problem I am not sure on is the 1st initial step of the step down transformer. I have only found a 24 volts 4.16 amps with 100va. I want to keep the project as exact as possible and was currious whether if the current rating is higher than 3 amps for that particular circuit I want to build can it blow any of the circuitry. The transformer I found was 24 volts 100 va and has an output current of 4.16 amps. Is that a problem or will it only draw as much current as needed?  

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

A do-it-all-in-one-cable For laptops(an idea) Using the ATX 24...

I just recently got an idea,its kind of an ingenious(well i think so) idea.ITs a do-it-all-in-one cable,a cable that connects to your laptops s-video,rca,vga,sound,and even usb through one cable using CAT5 cable for it(If cat5 contains enough cables in it)The cable at both ends will have the ATX 24 pin connector that connects to a project box,but thats another part,we will get to that laterS-Video ---------- 3 Data 1 common groundRCA ---------------- 1 Data 1 common groundVGA ---------------- 5 Data 3 common groundUSB --------------- 2 Data 1 5V 1 common groundSound ------------ 2 Data 1 Common groundGrand total = 15-mixing grounds/ 19 - separate groundsSo according to that,i would need 2 and a half CAT5 Cables(if i use separate grounds),which i am going to squish together into one big cable.Or 2 CAT5 cables (if i mix all of the grounds)Now,i would have all of the cables squished together into some tubing(heat shrink?,no too expensive in such a large amount)with the ATX 24 pin connector at each end.Now,the project box,it will have the opposite connector(the one that the other connector connects to) will go into a box with that connector soldered on a breadboard inside of it(i could get the connector from a computer,or 2(i have 2 fried motherboards so ...))and in the other side of the (plastic)box would be all of the connectors(Sound connector,VGA,Svideo,RCA,usb(maybe for IR receiver or something))that connects to the TV,or monitor.The other end with the same connector would connect to the laptop,it would have VGA,RCA or SVideo,Sound,and USBSo now that i got my point out,what do you think?That the all-in-one cable,or a bunch of tangled cables just to put video and sound to the tv,and that is without USB,whats the fun of not having a usb connector from your laptop 20 feet away from you,you could connect a web cam,to see yourself on the tv,or a ir receiver,to control the pc without a keyboard and mouse,or whatever else you can think of.So...what do you think(poin tout any mistakes i have made by chance)So...comment...or whateveri think this would be pretty nifty,no?

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

How to step down and convert wall outlet to 24 VDC?

Hi I am working on a project and i need to convert 120 VAC from a wall outlet to 24 VDC to run my device. I was wondering if anyone has a suggestion if i should first transform the 120 VAC to 24 VAC and then convert the 24 VAC to 24 VDC? or if there is a 120 VAC to 24 VDC with a normal wall plug for sale. 

Posted by mkapler13 2 years ago | last reply 2 years ago

can i use two pc psu's to get 24v? Answered

Yesterday i had a great thought for getting my macintosh powerbook 190 to power up. If i used two 12v sources in parallel i could get 24v (i think thats what it is, i mean where one power supplies negative is connected to the others positive and the neg of one and the pos of the other are used to create a combined voltage). So i tried it with one pc power supply but then i realized the 12v's are all connected to the same circuit so hooking it up like that would just short it out. I tried with two wall adapters, and on my voltmeter, it gave me around 30v with no load. the only problem is, that it doesn't supply 2 amps worth of power. but the 12v line on a pc psu supplies at least 10 amps, so if i used two pc power supplies (to prevent any shorting out) and hooked them up like described, could i get the 24v @ at least 2 amps that i need for this? Thanks in advance, z247

Asked by zack247 7 years ago | last reply 7 years ago

24 V DC servo motor.

I have a 24 V DC servo motor. What do I need to plug it into AC outlet.?

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

Motherboard preference Query (asus, msi, gigabyte) Answered

They are almost identical, and I am trying to decide which one to buy. Any help? http://www.newegg.com/Product/Productcompare.aspx?Submit=ENE&N;=-1&IsNodeId;=1&Description;=msi%20z97%20gaming%205&bop;=And&CompareItemList;=-1%7C13-132-118%5E13-132-118-TS%2C13-128-709%5E13-128-709-TS%2C13-130-770%5E13-130-770-TS&percm;=13-130-770%3A%24%24%24%24%24%24%24

Asked by bobert610 4 years ago | last reply 4 years ago

Will an LED on 24-7 mess up a house plant?

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

Looking for a large 3d printer 16"-24"

Looking for a large 3d printer 16" to 24" for ABS and NYLON , Anyone know of a company that makes one.

Posted by DIDDE55 4 years ago | last reply 4 years ago

how do i build a 24-cue firework controller?


Asked by jacob_rivera1441 9 years ago | last reply 9 years ago

Building 24 VDC using three 9 v dc battery

Hi , Any circuit that I can use three 9 vdc battery to get 24 VDc output less than 1.00 amp . The power would be used for demos powering sensor that can accept 12~24 VDC.

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

Where do you find 24 Bit Audio files??

Hey guys, I've been googling around, and I'm not nessesarily looking for a "warez" site, but I'm trying to figure out where you would find 24 bit audio files, like a flac file or something (stands for Free Lossless Audio Codec). I have a 24 bit creative sound card, I figure, why not LISTEN to it in 24 bit, but of course that wouldn't make sense unless it was recorded in 24 bit in the first place, as far as I know you can't really "upscale" audio such as that with a video file. Any suggestions peeps?? Pm me if you have to.

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

Re-Make: a 24 hour elecronics build party

The Alameda Computer Resource Center is throwing a 24 hour build party at their warehouse in Berkeley, CA this saturday April 29th. Check out the upcoming event listing for more info. Should be a good time - free food and drinks sponsored by Make Magazine and Digg.

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

whats the easiest way to convert 120 VAC from wall to 24 VAC ?

A friend gave me a security camera without power wires. on the back it  has 3 power terminals  - 24 VAC - GND ( ground) - 24 VAC  should i just try to find a wall adapter that puts out 24 volts DC and then take it apart and take out the rectifier ?     im guessing thats how they work.   THANKS :)

Asked by blackghost 8 years ago | last reply 2 years ago

Remember: Series 1 - Freddie Mercury

In a few days from now, will be the 17th anniversery of the death of Freddie Mercury, the lead vocalist from Queen. He unfortunatly died of bronchial pneumonia on Nov. 24, 1991.Please notice I will try to make more... but still never forget these famous legends 9/5/45 - 11/24/91 R.I.P.

Posted by Flumpkins 10 years ago

circuit diagram and parts to repair 24 volt 20 amp battery charger uses Scr's?

I have a MAC 242011 battery charger  ( 24 volt 20 amp automatic battery charger I need a source and a cct diagram to repair . the Scrs are not working . can you help ? paulttq@yahoo.com I am in Ottawa Canada tel cell leave txt message 613 291 9942

Asked by PaulTieTenQuee 6 years ago

24 LED strip

Hello all, I've got what i thought would be a simple project so i could take some impressive long exposure photos. eg: www.flickr.com/photos/24528515@N05/2356088056/in/pool-lightpainted Heres the materials i have: (also see pic) 1: 24 white led's soldered in series (yes i started without knowing what i was doing :P ) 2: A small 4.5v battery pack. 3: A simple clicky switch. Heres what i dont have: 1: A clue about resistors or where to add them. 2: I don't know what voltage the leds are as they were removed from a broken led lamp by my brother. (who also dumped the casing so i cant see what the circuit on it looked like) 3: Any more patience. :) The third pic just shows one of the 24 leds being tested with a 3v battery. I've done this with all 24 to make sure that there are no dead ones. Can anyone help my ignorance?

Posted by nodnodwinkwink 8 years ago | last reply 7 years ago

Does anybody have a Minecraft server with 10 slots or less which is 24/7?

I'm looking for a Minecraft server for a while but the only 24/7 servers I found were 200 slot servers with many plugins and lag. If someone has a small Minecraft server with 10 slots or less I'd be glad to join.  (I prefer servers with a Dutch of English speaking community)

Asked by Knex.X 6 years ago | last reply 3 years ago

24 x 24 LED Matrix Project

I would like to share with you all an awesome project and some doubts and questions related to the same. This is a 24 x 24 LED Matrix project taken from here. All the data is taken from the same link. 24×24 LED dot matrix -->   This is pretty old circuit but I found it interesting to describe here. 24×24 LED display is formed by using 9 8×8 Dot LED matrix displays, that are connected to AT90S2313 MCU. MCU scans an indicator lines in series. Special PC program is written which allows drawing images on screen and transfer them via COM port to device. You can send images in series what gives an animation effect.   Circuit is was built using obsolete AT90S2313 MCU which can be replaced by Attiny2313 MCU with minor modifications of firmware. To make program work you event don’t need to connect device to computer COM port. You can store images in other master MCU EEPROM memory Each received byte from UART is immediately sent to 8 LEDs, second byte to next 8 LEDs and so on. Bytes has to be sent one by one without delay. USART is working at 115200 baud, 8bits, no parity. ---------------------------------------------------------------------------------------------------------------------------------- THE PROBLEMS >1>I really dont know if the circuit is good or not tell me if it is going to work. >2>I cant get 8x8 dot matrix displays so i am going to normal leds to a 24x24 one. >3>I have never worked with bus before (the bold red lines in the circuit) so i dont know how to connect it. >4>The schems are segmented i am finding it hard to figure out how to connect some of the segments. >5>Also i need to know how to hook it up to my pc. >6>I have never done programming so i need to know how to program the ic. THANK YOU I couldnt get the images uploaded nicely so i linked them. 1 2  

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

VESA Mount for 24" Monitors ... design request

HI folks. Just wanting to see if anybody had a good way to mount some computer monitors. I'm in the market for two 24" monitors (widescreen) that I want to mount side by each vertically (not using the original mounts that come with the units, as they only go horizontal). Since VESA mounts are standard, I thought there could be a way of putting them onto something behind my desk so that they just fit that way. Any ideas?

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

grounding + 24vdc ?

Can someone explain the following, I got 24 VDC power supply (or take 1.5V AA battery) which is connected to 110VAC outlet on the input, potential difference out of the power supply is 24VDC node (+) to node (-) and potential difference of either one to ground is 0V (outlet ground). Now I take wire and ground (+) of the 24 VDC to outlet ground. Questions: 1. Why i am still measuring 24 VDC across (+) and (-) nodes ? If ground (call it whatever common) is 0 v and ground is touching (+) which was prior to shorting it to ground raised in potential by 24 V in relation to (-) that means (-) is zero potential? Or is it + 24VDC and - 24VDC but than potential difference is 48V at the output of the power supply. 2. Does that mean that I raised the potential of the ground to 24V? Probably not Thanks

Asked by onaumov 2 years ago | last reply 2 years ago

Incorrect Age

My age is incorrect in my Instructables profile. I am 23 years old, and Instructables keeps changing my age to 24. I have tried to change my age back to 23 several times, but the next day I log on to find that I am 24 once again. 

Posted by allie.fauer 3 years ago | last reply 3 years ago

which solar panel is needed to run a 24 volt 1kw motor?

I am working on a project of solar tricycle and i wanna know which solar panel is required to run a 24volt 1kw motor. so that it can produce full power

Asked by sachina43 1 year ago | last reply 1 year ago

how do i charge 12 and 24 volt batteries at the same time from my solar panels i have 500 watts of solar and a 50 amp regulator...

We have built a camper van from a 7.5 tonne truck and stupid me didn't realise that the truck is 24 volt but i need to be able to charge my house batteries from the engine but they are twelve volt also i will need to charge my truck batteries from the solar any ideas cheers...

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

led display board?

I would like to create an electronies board with different displays

Asked by richard2020 9 years ago | last reply 9 years ago

I want to make a full h-bridge for a 24 volt 60 amp load motor from all n channel mosfet ?

If some one knows how to make pls help me and also i dont want any microcontroller and mosfet gate driver ic in this circuit

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

PC PSU question - convert 12volt wires to between 18 to 24 volts.

- i want to convert one of the 12volt wires up to between 18 to 24 volts. is there a simple "up-converter" that I can use? a jiggy that i can attach to do this? using a standard PC PSU.

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

How to use a transformer? Answered

I need to convert 240V Ac mains supply to 12V DC/ 24 V dc How to do? one way is transforming 220 V ac to 12/24 V ac using transformer and then using diode bridge and capacitor to convert it to dc but i dont know how to use a transformer, how to implement it in a circuit......?

Asked by chatsbk007 5 years ago | last reply 5 years ago

24 Volt AC volt to 12 volt dc?

Hi guys i have a 24volt ac motor and want to reduce it to 12v dc. I have worked out how to change it to dc but not how to reduce the voltage. Is this easy to do or do i need to purchase something from the electronics store. any advice would be appreciated sam301

Asked by sam301 5 years ago | last reply 5 years ago

Inatall larger wheel on bike

What do I need to do above

Posted by doogg1 5 years ago

Best instructable to make LED MATRIX Scrolling.?

In example 24*6 or anything that size.

Asked by Hman2121 8 years ago | last reply 8 years ago

What voltage can heat gauge 24 nichrome wire 30 cm long successfully? Am building a polythene sealing machine

Am building a polythene sealing machine using nichrome wire, I use 9v battery but is not heating. What voltage should I used and can I use ac or dc

Asked by Gopep 2 months ago | last reply 2 months ago

How can I move a 12 foot by 24 foot shed?

I have a 12 foot by 24 foot shed that I need to move away from my house, its just too close. I just want to move it about 7 feet and forward. The floor joist are 2"x 6". I want to move the shed North (literately) and the joist are running East/West, thats good so far, as I intend to use 3 pieces of 2" x 10" running the full 24 feet North and South. Now here's the problem... Its heavy and I dont know what I could use to roll it on. I was thinking about using 4" PVC pipe schedule 40 (or 80). I just want some feed back before I do this. Cost is an issue here... dont forget Im doing a " for the poor man " series BloFish

Asked by BluTiger 6 years ago | last reply 2 years ago

Minor Bug with Today Views

The "Today Views" has not refreshed in over 24 hours for my Instructables.

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

Motor Controller

Dear Sir, Can you help me in developing a 24/36 mosfet controller for tricycle? Regards P​

Posted by hgsan 4 years ago | last reply 4 years ago

Can somebody identify this plant?

This plant popped up about 18 months ago or so...its approx. 24" tall. With berries!

Asked by malynn76 9 years ago | last reply 9 years ago