Need help to power an LCD

So recently i salvaged an LCD from my broken head unit. It is a 6.5 inch screen i think. I really want to put it to good use because it is still in perfect condition. It even came with touch screen (it is pressure sensitive but meh at least there is something). Maybe someone here can help me to get picture to come out of the screen. Maybe a control board or something that have hdmi or vga input. I have included a pdf file about the screen :) Everythig should be there. Thanks in advance!

Question by piece of potato 18 hours ago


DIY BBQ grill

Hello, I'm building a BBQ from an old 20ltr water boiler. I need to make the grill (where the meat goes). I'm thinking about making it from rebar. Would this be safe? I looked to buy one premade, but don't find one the right size

Question by MaDoGK 19 hours ago


Get an error when saving instructable published yesterday.

Don't know what I'm doing wrong. I'm trying to add another step. So, I add the step and then try to save it and this error message is what happens...Here is a screenshot of the error message.The only way to remove the error is to remove the additional step.Here is the link to the instructable which I am trying to add another step....https://www.instructables.com/id/A-Shorted-Motorized-Transformer-Simulated-in-Micro/

Question by Vinyasi 22 hours ago


how does pine and willow charcoal differ from plain old random tree charcoal when used in pyrotechnics? Answered

hello, i am starting up an online store, and am already starting to sell some of my pyrotechnic supplies, such as manganese dioxide and charcoal, but i just realised, on ebay (my online store is not an ebay store), people are only ever selling pine charcoal or willow charcoal! which doesnt make much sense since is a super fine powder and is made up of carbon. i need to know what makes these so much different from regular random tree charcoal that comes from just anywhere, and, is the charcoal i have now, which is of unknown origin, but mostly of from pine-like trees in the tropics, the same? i need to know if it makes any difference since i dont want angry customers demanding refunds because it isnt as good as other charcoal!

Question by oldmanbeefjerky 7 years ago  |  last reply 1 day ago


12v battery low voltage disconnect with relay? Answered

Could i make 12v battery low voltage disconnect with relay and resistor? I was thinking if put resistor in series with relay coil i could lower current so relay would barely work on 12v but when it drops to 10v voltage after resistor would be so small that relay would disconnect

Question by Cekpi7 2 years ago  |  last reply 1 day ago


Identify a Signet Ring? Answered

My grandmother gave me a signet ring a week ago, and I was wondering if anyone could help me identify the coat of arms on the front of the ring. I don't know what metal it is made from, and there is no visible hallmark that I can see...

Question by ObsidianBlush 1 year ago  |  last reply 1 day ago


How To Connect A Stepper Motor to Turn a Solar Panel

I want to use a stepper motor to turn a pipe or 2x2 piece of wood connected to a solar panel. I want this to be a direct drive system. No gears, no belts. I can't find an example showing how I can connect a stepper motor stem/bolt to a mount that it turns, though. I can see them connected in projects, they mysteriously leave out the details on the parts used and the details connecting it or they use gears/belts.

Question by blairr5 5 days ago  |  last reply 1 day ago


How to order the correct ball bearings and threaded rod so that they will seat well and not be loose or have play?

I am trying to design, what will essentially be a very specific miter box / saw guide for a hand saw. Here is a product on the market that is almost exactly what I am trying to build. The only difference between what I need to build and this miter box, is that the miter box from that link cuts at a 90-degree angle to the workpiece being sawn, whereas I need to saw boards at angles much more acute than 90-degrees. There are commercially available adjustable miter-boxes, such as this one, that allow you to set whatever angle you need, and it will still guide the saw straight. However, they are made for cutting baseboards and molding, so the angle-range is only 90-degrees to ~40-degrees or so. I am cutting wooden boards for making, "scarf joints". So, I need to saw through 4" thick boards at an 11-17 degree angle. Where the above miter box saws perpendicular to the board it is sawing, the one that I am building, at 11-17 degrees, will be closer to cutting parallel. The housing, I think I can cobble together from angle aluminum and hardwood. However, I haven't bought ball bearings since I was a kid riding skateboards. I was hoping to take a threaded rod and push it through the hole in some bearings, then use some spacers and/or washers to space them apart, and secure the whole bearings/spacer/bearings sandwich with some washers and nuts. I do not live near a place that actually sells bearings much less carries bearing and threaded rod in the same store. Therefore, I cannot try it all out right there in the store. So I am going to have to order the bearings and the threaded rod off the internet. I need bearing where... Heavy load is not an issueHow fast they spin is also a non-issue.But that are...Shielded from the sawdust (do not have to watertight)Fit snuggly on a threaded rod and not rattle around. A loose guide-bearing isn't much of a guide, eh?Would one of you fine gentlemen help me by pointing to where I can buy 16-20 bearings, a threaded rod that will definitely fit them, and some .50 - .75" spacers (metal or nylon) that will also fit the bearings?

Question by Dolmetscher007 3 days ago  |  last reply 1 day ago


How to turn .STL files into .SVG files?

Im looking to laser cut a part but i need to figure out how to get a cross section file saved as an SVG file. I made the part on inventor, exported it and then tried to upload it to 123D design but it wont allow me. What do i do?

Question by LancerRobotics3415 6 years ago  |  last reply 1 day ago


Mystery (to me ;-) Succulent Identification: What is this? Answered

I bought this really interesting succulent(?) from a door-to-door plant salesman a week ago.   The pot is 5", so that gives you a size reference.  This strange-growing plant appears to have thorns, but the spikey protrusions are not hard or ouchie-sharp. Does anyone know what species it is?

Question by bajablue 6 years ago  |  last reply 1 day ago


Need HELP! Dwyer Love TCS Controller- Temperature probe

Recently replaced a new aquastat for wood boiler and thermocouple. The new aquastat is a TCS-4010 Dywer Love controller. I have tested 2 different thermocouples and it appears the input for probe wires isn't detecting the thermocouple and creating a buzzer alarm with 000. Is this common to have a faulty controller new, off the shelf?Aquastat: TCS-4010https://www.grainger.com/product/product/LOVE-115V...Thermocouple- https://www.grainger.com/product/TEMPCO-Thermocoup...Thanks!

Question by bryanholcomb23 2 days ago


Trying to give membership to a friend, where to enter the code? Answered

I'm sorry, I've looked all over the site, and even Googled key words, but keep finding broken links. I'm trying to give a friend a code for a free membership, but the site keeps asking her for credit card info. I understand the site has been changing lately, but I'm stumped as to how I can help her get the membership logged, and start creating Instructables. Many thanks!

Question by WUVIE 4 days ago  |  last reply 2 days ago


Single remote control button for grandma

Hello,I am trying to turn a remote controlled socket remote control (which comes with 4 on and an off buttons) into a single button remote, so that when pressing the button the light would go (on/off/on/off etc.) I am putting this together for a friend with limited mobility who is having issues pressing the on and the off button independently and was wondering if anyone could help? My knowledge of this is incredible limited, so apologies if this is a super simple solve. The current remote (seen in the picture) has a frequency of 433.92MHzThank you!!!

Question by luruca 2 days ago  |  last reply 2 days ago


PDF's are 0 (zero) bytes

I am a 'new' Pro Subscriber. I tried downloading .PDF from this posting using Firefox (and Chrome);https://www.instructables.com/id/How-to-program-arcs-and-linear-movement-in-G-Code-/The files are zero bytes. What's up with that. What's the solution?

Question by squattingdog 2 days ago


Help repairing a pair of headphones

First things first, they look like Beats, but I’m pretty sure these are knockoffs. Nonetheless, they sound pretty good, and I picked them up at Goodwill for a steal and love a challenge, so if someone is interested on taking on this electronics mystery with me I’d be incredibly grateful.Context: I’ve tinkered on and off with consumer electronics for a while now, am okay at soldering and have an okay knowledge of how more basic circuits work. Otherwise, I'm pretty beginner but generally a quick learner and would be happy to try any of your suggestions. The previous owner attempted to replace the AAA battery holding component with a rechargeable lithium ion battery - only problem was there was no way to charge the battery. Not a huge deal, fixed the headphones to run on AAAs again as they were originally intended. That said, pressing and holding the power button powers the headphones on, but also is the Bluetooth connection button on the board (image at the imgur link below) there is an icon for both the connection functionality and the power around the same button. The headphones power on, work, and sound great when you're holding the button down, but once you let go they turn off. So, it’s a momentary switch with no latch to keep it held down - not ideal. That said, I’ve tested jumping the switch so it gets constant power without holding the button down, and while the headphones power on, connect to my phone, and work, because it seems the power button and bluetooth button are one in the same, the headphones continue to look for Bluetooth devices and makes a periodic and infuriating beeping sound about every fifteen seconds. Based on the pictures of the board below (pictured with, and without button attached) can anyone figure out what the problem might be? Or point me in the right direction for further tests to run?Front of the board, with buttons.Front of the board, with power/bluetooth button removedBack of the board, held upright with power/bluetooth button side up

Question by WarpStar 2 days ago


How to view the retina of the eye?

Hello everyone ,I viewed the OIO model but I am trying to do a slightly different method. I have a 20D lens and IR camera with raspberry pi . I have a problem viewing the retina of the eye . To be more precise the imaging of the retina in IR camera without pupil dilation is much difficult for me . I tried different angles in a dark room but still I can only view the anterior of the eye and the posterior is not viewed . Hope you understand the problem I am facing , can you help me in taking this project further ?

Question by Ramya97 2 days ago


How to size a DC motor? Answered

I want to rotate a stainless steel shaft that is in a vertical position having a 40 mm diameter and 300 mm length. The motor will be attached to the bottom of the shaft, so when the motor is turned, the said shaft will rotate. The shaft is not driving anything, it just turns on its own. The shaft's mass is 3kg(according to my calculations).  I want the shaft to rotate at an angular speed of 45 degrees per second. Having this information, how can i size the motor that will do the job. What kind of torque would i need, what kind of wattage. Please show me some calculations so I can know how motor sizing is correctly done.  Very much appreciated, Chris

Question by Chris414 5 years ago  |  last reply 2 days ago



How can I turn an air conditioner on/off without remote.

How can I can I modify an air conditioner so that it can be turned on/off without the remote as soon as I turn on the power switch? I however want to use the remote to regulate the temperature.?

Question by cprompt7 9 years ago  |  last reply 3 days ago


Novice here. Send a "gate open" signal from indoors? A gate closes access to the driveway leading to my little guest house.

I’m completely new to making electronically operated devices. I can't interpret and translate the existing rf signaling instructables to my situation. I’m also completely new to your impressive Instructables.com. Happy to be here. The situation: On a shared property stands a main house and a little guest house. Both are served by a single driveway. Access to the driveway is restricted by a gate. The main residence (not mine) utilizes 1. a remote control and 2. a drive-up keypad to send the "gate open" signal. (Aside: the drive-up keypad is paired with an intercom. The intercom serves the main house only. My guests, or delivery drivers, must telephone me to alert me of their presence at the gate. To open the gate for them, I must exit my little guest house residence, walk the length of the property, aim my remote control, line-of-sight, at the gate and depress the button on the remote control. The gate opens. I make the return walk to the entrance of my residence. This poses two problems: 1. guests and delivery drivers must wait while I make the journey out of the house, to the end of the property and 2. I must make this journey through inclement weather and nighttime darkness. My first goal is to achieve an indoor located, or a just-outside-the-front-door located, "gate open" signal sending trigger. I've read that wired signal sending performs more reliably than wireless, due to the abundance of potentially interfering wireless device traffic. I dunno. My second goal is to give my guests and delivery drivers a two-way voice communication "intercom" specifically with persons in the guest house. This communication device must be unobtrusive in appearance to be appropriate-enough to stick onto the drive-up keypad & intercom to the main house. A device operating as communication to the guest house belongs alongside the intercom button to the main house. That's so my delivery drivers don't buzz the main house, unnecessarily bothering the owners. That has happened. Makes me cringe. There must be many methods by which to solve the two challenges: 1. a guest house located, “gate open” signal sender. The signal reliably reaching the end of the property and aiming at the gate, and 2. a guest house located, two-way voice communication something. I’ve seldom even peered into interiors of electronic devices, and am confessing my entire ignorance of electronic signaling. Since I embody the least informed and least experienced person possible to achieve these to goals, it seems to me the simplest to assemble and test is the best, and that I begin with challenge one. I appreciate you for your time in considering how best to recommend I proceed. I'm in the dark. If you are very swift of mind and short of time, perhaps take a pass on this one. I need a most elementary, every little step described, no steps missing or out of order, type of response. I’m a neurodivergent individual. I’m good with it. And I will convey, from within my areas of creative visual fluidity, instructables in gratitude for yours, and for fun. And when other Instructables.com participants request guidance that I can offer, I’ll do so.

Question by terrycten 3 days ago


how to make a signal jammer???

Simply,easily,for project,what are the things to need,what are the problems in that,plz reply guys am college student...

Question by vairavel 7 years ago  |  last reply 3 days ago


what kind of laser is used in laser printers? Answered

what kind of laser is used in laser printers?

Question by Fypsigon 7 years ago  |  last reply 4 days ago


How do I fix a Black & Decker electric lawn mower motor?

A neighbor asked me to have a look at her B&D electric mulching mower (MM1800 Type 1) after it stopped working. When I pulled the control switch, the blade didn't turn, but there was a buzzing sound and kind of a burned plastic smell. I also found that it was very hard to turn the blade by hand. At home, after a lot of trouble I was able to remove the 6 screws holding down the big plastic cover. (You should see how much grass was under there.) I can now see the outside of the motor, but how do I figure out which parts need to be replaced? The owner's manual has a parts list. I assume that some parts (like the magnet ring and armature) are OK, and that the problem is with something like the brush spring/terminal/brush insert or rectifier. How do I find out? (I'm hoping it won't be that hard to replace the parts of the motor.) Thx.

Question by bkbkbkbk 3 years ago  |  last reply 4 days ago


Slicing a hockey puck into discs (vulcanized rubber)

I need to slice a hockey puck (1” thick by 3” diameter) into very thin discs (1/16” to 1/32” thick). This can be done... the NHL sells 1/4” puck coasters (see photo). Thinking about a mandolin design where the puck is mounted and the blade moves with my hand in a sled device. Puck rubber is very hard to slice. Thinking of Japanese angled blades (‘7’ shape rather than the American ‘V’ shape). Looked into ice auger blades (for blade thickness and stability). Just about de-gloved my hand with large box-cutter blades (bent as well when cutting the rubber). Any ideas? Raincock@ualberta.ca

Question by Marfeetus 4 days ago  |  last reply 4 days ago


Is it safe to put ABS INSIDE dishwasher?

Hi, everyone!A cutlery basket in my dishwasher got broken. I want to repair it with 3D printed parts. Does anybody know is it safe to put ABS INSIDE dishwasher? I mean that there are hot temperature, steam, and chemicals inside and it will connect with dishes. Thanks in advance!

Question by Glumgad 1 year ago  |  last reply 5 days ago


How to make Tank+Drone = Trone

Hi! Can someone please guide me to make a Tank + Drone. I tried youtube but it wasnt much help. The 2 in 1 trone should have the functioning of a tank as well as a drone . On a switch of a button from radio (eg.flyskyi6) a the tank should be able to fly. I have added 2 pics for help.

Question by Barket 5 days ago


What is the best place to buy a real DS flash cart? Answered

Hello,  Man I love asking questions :)  Anyway I was wondering if anybody knows of a good online store that carries real DS flash carts with reasonable prices. (30< for cart and memory card)  I want either an M3 Real or an Acekard 2(i).  So if anybody know of a good store and would like to tell me that would be great.  Oh and if you have a suggestion for a good cart (besides cyclods) I would love to know :)  So far I have looked at http://www.leetmod.com/acekard-2i-2gb-ready-to-go-for-dsi-dsi-xl-p-220.html this cart bundle.  Does anyone know if this is a reputable store? Please no further answers to this question! It's been ages since I even touched a DS thanks! :)

Question by junits15 8 years ago  |  last reply 6 days ago


How can I wire a standard light switch to an extension cord? Answered

I am working on a project in which 2 light fixtures are wired up to an outdoor extension cord. I need to wire a light switch like the one pictured below to the extension cord. How can I go about doing this? Thanks, Adam

Question by Adambowker98 6 years ago  |  last reply 6 days ago


What is Hi-Float made out of, and is it possible to make my own? Answered

Hi-Float is, apparently, some liquid you can pump into a balloon to make it stay inflated for a longer amount of time. I can't seem to find anything other than commercial promotion on a Google search, and I'm terribly curious about how it does this, what it's made out of, and whether it would be feasible to make it myself, homebrew-style.

Question by V-Man737 9 years ago  |  last reply 6 days ago


How to make ghostbuster costume?

Hi guys! i'm trying to make a ghostbuster coustume for idk this year halloween...and I need a little help...Is there any simple way that I can make this costume?BTW : I have open suggestion for costume idea so put that in the comments too OOF.Thankas

Question by 1234567guy 7 days ago  |  last reply 7 days ago


Hey! I had a quick question, do any of y'all know why my Xbox has been crashing lately? It hasn't been working as well and it Constantly Lags all the time.

I am not sure why its crashing and I don't want to make things worse! What should I do?

Question by LenaElatbash 7 days ago  |  last reply 7 days ago


how do i fix my buzz bee double barrel shot gun i had taken apart?

Question by matt2485 8 years ago  |  last reply 7 days ago


How do you purify aluminum? Answered

I want to know how to turn aluminum foil into aluminum powder. I have been told that aluminum foil is not pure aluminum, and I would like to know how to purify it.

Question by Tobor 2.0 7 years ago  |  last reply 7 days ago




Help plz:)

Hiiiii! I'm Izzy, and next year ill be living on my own income for the first time. Now I'm a crafty person(duh) and on top of working part-time, I also want to start selling my art. However, I have no idea how to do this. So far I can knit, crochet, draw, paint, sew, and cook. I want to get into doll and squishy customs as well but I also have no idea what I'm doing in that aspect. Any helpful tips or ideas are much appreciated. SALUT!! :)

Question by izzys13 5 months ago  |  last reply 8 days ago


How would you make this costume?

How would you make this costume?

Question by seanbell157 7 months ago  |  last reply 8 days ago


Green bamboo

I am sewing some window blinds for a friend on a very tight budget. I'd like to know if I can use slim bamboo canes straight from the garden as a weight. It will be sewn into a cotton fabric channel at the bottom of the blind. Or should I be only using dried bamboo? ie I am hoping that it wont go mouldy??

Question by LyndaA11 7 months ago  |  last reply 8 days ago



How to calculate the total time a battery can operate light?

Hi,I am willing to just use solar panels to recharge my batteries and then to power my garden lights.  What I need is how do I know if my battery will be able to power my lights for atleast 24 hours.  How do I choose the solar panels to be able to charge the batteries. IF I know how to calculate for atleast one light and battery that should be enough for me to calculate for my whole system. Thanks

Question by Chamburn 5 years ago  |  last reply 8 days ago


How many Ah are car batteries?

I want to know how many Amp hours a car battery has? I need to know how long I can use them for particular things. Also how many Amps will you be able to draw from a moderate sized one? I need to know how much I can squeeze out of them before I start experimenting with them.

Question by The MadScientist 8 years ago  |  last reply 8 days ago


Best way to create an 'ible on mobile phones?

This is part question part complaint. Ever since the Instructables app was phased out, it has gotten buggy to the point of jon-usability. However, the website has not improved on the mobile front to make up for that. Creating an 'ible on mobile simply doesn't work, because you can't drag and drop multiple photos like on a computer. Neither can you drag and drop photos from the photo library panel into a new step. To the staff: is there any plan to improve creating 'ibles via mobile platforms? This would help so much because almost everyone takes photos on their phones these days. Even simple photo editing is simpler on a phone than on a computer. To the community: has anyone found a good way to create 'ibles on their mobile platforms? If people could create posts straight from their phones, while on the bus or train or whatever, then we'd see a lot more active users.

Question by ucn 9 days ago


Does anyone have the Paul elkins airstream bike camper plans?

I watched his youtube video '$150 bike camper' it says there's downloadable plans for it but clicking on the link just says the site doesn't work, do the plans still exist somewhere? I really wanna build that, so if anyone has the plans or knows where I can find them, let me know, please and thanks

Question by Tbirds4lyfe 10 days ago  |  last reply 9 days ago


Verify my account? Answered

A little box keeps popping up saying "Hey DCA, you still need to verify your account".  I do as it says and a box pops up with an old but still active email address, I send it but it never shows in my mailbox. Nothing wrong with the address, I still get other mails.  What's up? Also, I don't see anyplace to ask a question of the Instructable staff. Thanks,  Dave

Question by DCA 4 years ago  |  last reply 9 days ago


Finished building Low Level Laser Therapy Helmet using #38 3v and #69 5v diodes. The helmet will be used for hair loss prevention. Due to zero knowledge of circuitry, what's the safest and right way to power device? Answered

There are similar projects on this website but all using less diodes. I'm also not convinced that wiring all the diodes in a parallel circuit is the best route. If it is, then great and that will make my life easier.As you can see in the photos, I've soldered the diodes into bundles. However, each bundle either consists of only 5v or 3v diodes. If I need to desolder anything, so be it. Right now there are bundles of the following:5v = 20, 15, 22, 123v = 9, 9, 9, 11The diodes were purchased from Amazon and displayed the following specs:3V Output Power: 5mW Wavelength: 650nm Working Voltage: 3V Operating Current: less than 20 mA Laser Shape: DotWorking temperature: -10 degree~£«40 degree housing: CopperDimensions: 6.5 X 18 mm5V Output Power: 5mW Wavelength: 650nm Working Voltage: 5V Operating Current: less than 20 mA Laser Shape: DotWorking temperature: -10°C to +40°C Housing material: High quality Copper Dimensions: 6.5 x 18mmWire connection: Red wire connect to Positive, Blue wire connect to NegativeOther purchased materials2 x 4.8V 700 mAh Rechargeable Ni-Cd Battery Item Name: Ni-Cd Battery Dimension: 2.16 x 1.97 x 0.59 inches Plug: SM 2P Plug Charging time: About 2-3 hours Working time:About 20-30 mins5 x 4 Cell 4.8V AA Battery Holder W/ JR Style Connector ReceiverUltimate Goal: Simplify powering of helmet for 20-30 minutes / 3x a week by using on/off switch or plug.*This is my first time on this website and I apologize if I entered into the wrong category. THANK YOU in advance to anyone who helps. Greatly appreciated!!

Question by Randyroo1 22 days ago  |  last reply 9 days ago


Picture format (png) and sizing

Just done an instruction, my pictures are PNG format, some have a transparent background.They look OK in the editor, but when published, what should be a transparent background is black.Is this an issue of the site?Do I have to remake the pictures in an other format?While on the subject of pictures, I would prefer some to be shown smaller than they are shown.Is it possible to set the size of pictures in an instruction?I have searched for this info, the results about PNG where 8 years old and gave the impression it was being fixed.

Question by Palingenesis 13 days ago  |  last reply 9 days ago


why is steel used to make permanent magnets?

Question by jayasonika 9 years ago  |  last reply 10 days ago


Metalwork: How to solder a joint close to an existing joint without melting the first one? Answered

I'm trying to make a sculpture by soldering copper/brass rods together, but when I try to make one joint, it melts all the surrounding joints. I tried putting on some heatsink tweezers but they weren't effective. It's going to be quite complex, so clamping the whole thing and soldering all the joints at once won't be practical. Any tips for making a better heatsink? Should I just solder faster? At the moment I'm letting the metal get really really hot because I guessed it would make a better joint, but maybe I'm overdoing it?

Question by MrZebra 10 years ago  |  last reply 10 days ago


Coin Slot to Arduino... Need Help. What to do?

Hey guys, been doing one of the project in instructables w/c is this https://www.instructables.com/id/Make-Money-with-Arduino/ Interfacing a Coin Slot to a Arduino. Read and done the instructions provided in the project. But there seems to be a problem bec. i can't seem to get the desired output. I have a Coin Slot w/c was already set to 3 different types of coins (P1, P5.00, P10.00)(Philippine Coins) Set it up according to the instructions of the project, "COIN" white wire connected to pin2 (interrupt pin 0) of the arduino, common ground connection of the arduino and the coin slot (12V), and for an easy way to see the output i put up 3 LEDs on pin8, pin9, and pin10. This is the code i used, (modified)(original comments still there) -- const int coinInt = 0; //Attach coinInt to Interrupt Pin 0 (Digital Pin 2). Pin 3 = Interrpt Pin 1. volatile float coinsValue = 0.00; //Set the coinsValue to a Volatile float //Volatile as this variable changes any time the Interrupt is triggered int coinsChange = 0; int OneLed = 8; int FiveLed = 9; int TenLed = 10; //A Coin has been inserted flag void setup() {   pinMode(OneLed, OUTPUT);   pinMode(FiveLed, OUTPUT);   pinMode(TenLed, OUTPUT);   Serial.begin(9600);                 //Start Serial Communication      attachInterrupt(coinInt, coinInserted, RISING);   //If coinInt goes HIGH (a Pulse), call the coinInserted function //An attachInterrupt will always trigger, even if your using delays } void coinInserted()    //The function that is called every time it recieves a pulse {   coinsValue = coinsValue + 1;  //As we set the Pulse to represent 5p or 5c we add this to the coinsValue   coinsChange = 1;                           //Flag that there has been a coin inserted } void loop() {   if(coinsChange == 1)          //Check if a coin has been Inserted   {    if (coinsValue == 1)     {        digitalWrite(OneLed, HIGH);        delay(1000);        digitalWrite(OneLed, LOW);     }     else if (coinsValue == 5)     {        digitalWrite(FiveLed, HIGH);        delay(1000);        digitalWrite(FiveLed, LOW);     }     else if (coinsValue == 10)     {        digitalWrite(TenLed, HIGH);        delay(1000);        digitalWrite(TenLed, LOW);     } //Print the Value of coins inserted   coinsChange = 0;   } } -- Rather than using microsoft express, i wanted to use simple LEDs on pin8, pin9, and pin10 to indicate if the program read the input correctly. after doing the wiring, and coding in the arduino, i tested to see if it would work. NONE of the LEDs light up after inserting coins on the coinslot. Need Help! :X

Question by Gedon 6 years ago  |  last reply 11 days ago


Tree house book

Hello everyone!!I'm looking for a book on tree house construction. I'm not interested in looking at images of various tree houses that have been built but I would really like to find clever details that deal with the construction of a tree house in a ''tree friendly'' manner. Does anybody have any ideas?Thank you in advance,

Question by alison katri 11 days ago  |  last reply 11 days ago