Help needed: electronic light/sound gadget

Hi guys, I'm hoping someone can help direct a complete newbie. I'm a magician trying to build a gadget that looks like a steampunky-science-device. I'm working on a routine like this one: https://www.youtube.com/watch?v=GTikFSOBIA8 If you go to the 09:00 mark you'll see it in action. I bought the instructional DVD from the man in the video which supposedly includes instructions on making the gadget, but although he explains the flash-paper-ignition part clearly he doesn't even touch on how to make the lights and sound. I'm fine with woodworking, soldering etc. but I have no clue what pieces I need to buy to make flashing lights, squeally squawky adjustable sounds etc. If anyone can tell me what parts I need and how to string them together, or where to go to find suitable instructions, I'd be very grateful.

Topic by MalcolmR15 2 years ago  |  last reply 2 years ago


NES Zapper laser gun w/sound effects

Hi Everyone, I came across the NES Zapper laser mod that burns things recently, and it lit a fire under my backside to do a similar build.  I've scoured various other resources and have yet to come across exactly what I'm looking to do.  And yes, I have already done a forum search for this project.  So, since I found the NES Zapper laser gun on Instructables, it seemed only right that I reach out to the Instructables community for assistance in making this project a reality. I am a rookie at this sort of stuff, but really want to make this happen.  I would like the battery to remain inside the Zapper, rechargeable by way of the female AC adapter connector.  I'd also like to add sound effects, so a speaker and soundcard is going to be needed.  I need help with the wiring circuit so I can adequately power the Laser, LEDs and sound effect without frying anything.  Below is a list of the components that I know of, I know there are others I'll need which is where I hope those of you reading this can help me out. 1 x Nintendo Entertainment System Zapper pistol 1 x 230-250mW 532nm laser 1-3 x Diffused Green LEDs 1 x Rechargeable CR123A 3.7 Lithium-Ion Battery (OLight has built in circuit board to prevent overcharging, over discharging and over discharge current) 1 x CR123A battery housing (found on thingiverse) Any help would be greatly appreciated.  Thanks in advance! Dan Solo

Topic by DanSolo81 2 years ago  |  last reply 2 years ago


need help for nrf24l01+

Well i am using rf24 module for a project since i am new to it i am having some difficulties to send the data. Actually i am doing a remote consisting of a geeetech voice module + nrf24 + arduino nano. It must communicate with a hub which comprises of arduino uno + rf24 + relays. I have tested the voice module and the data is read as serial command. see the code for a simple example without rf24 below. For my project i need to make the transmitter read the serial command of the voice module and send it to the receiver side. In the receiver side it will activate relay with a switch case section. I would appreciate if anyone could help me out and suggest me how to send the command of the geeetech voice module via rf24. //code for simple test between voice module and nano int led1 = 2; int led2 = 3; byte com = 0; void setup() { Serial.begin(9600); pinMode(led1, OUTPUT); pinMode(led2, OUTPUT); delay(2000); Serial.write(0xAA); Serial.write(0x37); delay(1000); Serial.write(0xAA); Serial.write(0x21); } void loop() { while(Serial.available()) { com = Serial.read(); switch(com) { case 0x11: digitalWrite (led1, HIGH); //turn red on break; case 0x12: digitalWrite (led2, HIGH); // turn yellow on break; case 0x13: digitalWrite (led1, LOW); // turn red off break; case 0x14: digitalWrite (led2, LOW); // turn yellow off break; case 0x15: digitalWrite (led1, LOW); digitalWrite (led2, LOW); // turn both off break; } } }

Topic by keshavcanaye 2 years ago


Wanted: Urgently need $10 Adafruit Gift Card (Topic Closed)

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

Topic by techno man 2 years ago  |  last reply 2 years ago


converting a bike to a trike?

Anyone have info on converting a bike to a trike? My disabled son has balance issues but wants to ride with the family, however we can't afford a new adult tricycle or one of the expensive conversion kits. He's much too large for training wheels to work. I'm hoping to find a way to convert an old bike with minimal expense and no welding.

Topic by valr 11 years ago  |  last reply 2 years ago


Notifications from Android to Arduino via Bluetooth

I would like my phone to relay my notifications from the notification tray to an arduino. I had done alot of snooping around, and I have not found anything regarding doing that. Closest thing I had come to was sending notifications from the arduino itself, to the phone. But I want it the other way around. The idea is that it would display it to one of those 16x2 LCD displays, scrolling through whatever the notification says. I have yet to get the LCD, but in the meantime, I'd like to see about getting it to come through to the serial monitor. Does anyone know how to get android to do something like that?

Topic by Dashing Rainbow Dash 2 years ago  |  last reply 2 years ago


Ballerina Jewelry Box Project

Hello, I am interested in creating a jewelry box for my niece. The idea is to laser-cut a custom box which I think I can find templates of online and create an SVG file with some art for the laser cutter. I plan to 3D print a ballerina as well. I initially thought of running the electronics with Arduino - but prefer to keep it simple.  I want to have a custom song/melody playing - I was thinking of perhaps some sort of a recording/playback speaker where I can record the song initially and then have it play back - ideas? For simplicity - do you think it is possible to run a simple circuit with a couple AA/AAA batteries, a hinge control (ideas for something that will do the trick and act as a switch are very much welcome too), a speaker, and some sort of a stepper motor/servo to spin the ballerina. I would love to get some ideas and supplies from you. This should be a pretty straightforward, simple project but I don't have much electronic experience and am not sure what to search to find the technology I need. Thank you, KoMoDo

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


PDF download failure- Specific Instructable only

I have been trying to download a specific Instructable (5 Ways to Remove a Stripped Screw by mikeasaurus). I am a Pro member. I have tried two browsers (Firefox 51.0.1, 32-bit) and Microsoft Edge 38.14393.0.0. In Edge, I get this: AccessDenied Access Denied E19C0FE6BCE367F9 +C5EcpMmykOevK8VULBxxjTnZBVDhF2gxt86VCFizkOnp03comyjfNnX38MlWNhLfnrXH917fKM= In Firefox, this: AccessDeniedAccess Denied38C86677C72FD570baxQesBYkq6iVRPIxtqaWupLMeDJEFVyjMZMcdM2YQQZZsRmuCDDXomn8zkrU9P72zRqqVIgbSw= Other Instructables work and download just fine. Any thoughts?

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


Increase voltage in my 12v Ryobi drill?

Hi Guys! I have a Ryobi 12 v power drill that is really tired. I don't wanna buy a new battery because after a few month it got so weak. I read the inspiring post Hot Rodding a Power Drill Battery by archer6817 and would love to try it. But I have a question.  Can I increase the voltage if I put in new cells,  like 14 or 18 volt?

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


How to make a egg stand?

I tried searching on here how to make a egg stand. And i cant find anything on that topic. I want to try and make dragons eggs but i cant find anything on making stands for the eggs. If anyone has a link or something please share. :)

Topic by jessielyn 5 years ago  |  last reply 2 years ago


Remove screw PDF does not work

Instructable on "5 ways to Remove Screw" PDF does not work.

Topic by LarryB45 2 years ago  |  last reply 2 years ago


Access Denied for "5 Ways to Remove a Stripped Screw" PDF

Morning All, Can't download direct to PDF "5 Ways to Remove a Stripped Screw" https://download.instructables.com/EDR/3E13/IZ6C6U2I/5-Ways-to-Remove-a-Stripped-Screw.pdf?Expires=1488122913&Signature;=LLEXhaZ0A5uA4V~z8jSbGcCPm4rja31er8BRcg5Uzafss-fOzyRO6h4cWOlRLZSLuYHk7wmSucdAh8wflGksuWRK8UihpkXW~R325ZzeZXFbCSTYe4~pyrrL6l69XH2USSYNfEzkS0RmRa-AZ9woTH6Hnwe0vg5GSe3Ne6OJdX4_&Key-Pair-Id;=APKAI44RD4FFAGO7EV3A Getting Access Denied AccessDeniedAccess Denied3EC1C4060EE04AF11wd6x/FFP+GQYYpCSH2J5+dA7be6NMJ1vXAV6FhBzpJR/JF0wZl8B3aSLdhlZmOwM8F2Ba3/mAM= Two other 'ibles downloaded just fine.

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


Log in screws up most of the time.

I have a service that records all my passwords, usernames and logins, etc. as I type them in. It works perfectly everywhere and all the time except on your site. How come your site can't reliably find the information I typed in to open the account and that was simultaneously recorded by the top rated password service on the net?  Sometimes it opens, mostly it doesn't. Can you help?

Topic by TomM315 2 years ago  |  last reply 2 years ago


Slowest set epoxy? need too much time to apply it.

Hi, I need to glue an acrylic sheet over a wood maze, which size is around 12x24", so there would be a lot of line to apply the epoxy over it, I think it would take me around 15 minutes of even less I am fast and prepared for it, so I was thinking in using a slow set epoxy. Please any info or advice, how slow can a epoxy be? I would be glad with a 45 minute epoxy, but will it really dry until passed that time? thanks.

Topic by johanx4 2 years ago  |  last reply 2 years ago


Wen 2307 Rotary Tool - Help needed

Hi there everyone, I need a bit of help if available. I purchased a WEN 2307 101-piece rotary tool set from Amazon.ca a few weeks ago and followed that purchase with a Flexible Drive shaft.  Although I was able to attach the drive shaft to the tool, the bits that came with the WEN don't seem to fit the collet of the drive shaft properly.  Therefore, I am planning on returning the drive shaft and purchasing a different unit from a different supplier on Amazon. The unit that I am considering is an SPTA Electric Grinder Flexible Flex Shaft Rotary Tool Attachment 42" Length and Rotary Accessory which states that it fits All 1/8" rotary tools. Of course, the drive shaft didn't come with a manual, so I figured out myself how it is supposed to attach. I'm not very familiar with rotary tools and purchased this unit as a beginner, instead of spending a lot of money on a really good Dremel. That being said, I would like to know if the size of the collet is equal to the same size bit.  (i.e., if the rotary tool is fitted with a 1/8" collet, do you use 1/8" bits, or do you use a different size? I know that this seems like such a stupid and/or easy question to most people, but, being a beginner, this can be quite confusing. Any assistance that you can offer will be greatly appreciated. Thanks

Topic by freddyguy1 2 years ago  |  last reply 2 years ago


DIY DSLR/Mirorless camera power base/grip

Hi. I'm looking for a way to build my own powerbase/grip for my lumix g85 camera by using a power adaptor, long charge battery cells and something that can allow the user to see the remaining charge (because on the g85, whenever you use the power adapter, the power/battery level isn't showing on the LCD screen since it's no longer in the cam). I'm inspired mostly by those two youtube videos: https://www.youtube.com/watch?v=HL_U_tl3Q20&t;=903s https://www.youtube.com/watch?v=GYvf77SRUQ0 The reason why I would like battery cells instead of an attached small power bank or even Canon batteries is because I want to house everything safely in the base (no loose wire/cable anywhere on the cam and solidity in the base so nothing can break and fell  by accidend). Although, I don't know if it's going to require a power regulator and/or converter. My knowledge on electronic is very limited, which is the reason why I'm asking for some help & advices on how the proceed.  Anybody who's interested & with the required knowledge here would like to help ? Please let me know. Thank you

Topic by monks19 2 years ago


Where to get ammonium nitrate

Does any body know a place 2 get ammonium nitate NOT OFF THE WEB or from uni or such, i mean from a shop like coles or walmart if not how do u make it?

Topic by 10wellsmit 12 years ago  |  last reply 2 years ago


How to turn the attention to the updated instructable?

How can I turn the attention to my old instructable after I made an important update to it? Is "promotion" feature on the profile page works this way?

Topic by Waldemar Sha 2 years ago  |  last reply 2 years ago


Is there any "Trial" Pro Membership codes?

Hello,  I just stumbled across this site when I was looking for a DIY project off Pinterest and I was wondering if there are any trial offers? There is a PDF I'd like to download for a pallet playhouse for my daughter for this spring and it's so adorable! I wouldn't even mind to pay for one month if that were possible?! I'm just not sure if I would use this site a lot yet to pay for 1-2 years worth. But if I can do a trial it may persuade me otherwise! I would very much appreciate anyone's help this is for my first baby girl who is almost two now and I'm ready to make her spring and summer so much fun but on a budget with this cute pallet play house Thanks!!!! 

Topic by GiovannaA8 2 years ago  |  last reply 2 years ago


Organize Favorites

Would love to have a feature added to site to organize favorites.   Granted I only have 65 at this point, can imagine how people find a fav if they have hundreds of favs they need to search thgouh.

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


Contests being judged

Seems like there is a lag in announcing winners of current Contests being judged that ended on the 20th.

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


Favorites not listed but still favorited

I've been a member for 5 years and always used to login using facebook. That now appears to not be an option, but I can still use the email to login, however my favorites list is empty, though when viewing an instructable I know to have favorited, is still shows as a favorite. What the hell.

Topic by aclark17 2 years ago  |  last reply 2 years ago


It's 2016, and Instructables is owned by a big company now. Why does it still not support HTTPS successfully?

(I thought there was a forum for topics about the Instructables website itself, but apparently not, so I'm putting this in Square Pegs.) Posting this publicly poses no risk to the security of the Instructables website or any user's account. Any attacker who would use this information (which is pretty much all of them) would be able to figure it out on their own more easily than finding and reading this post. It is extremely obvious to anyone who simply looks at the address bar while visiting the website. (I would be very surprised to learn that no one has taken advantage of it already, if that can even be proven.) Instructables appears to be severely behind the times when it comes to keeping its users' accounts safe from hacking, and their communications secure from eavesdropping and tampering. Just about everyone who runs a website or is very active online these days knows the importance of having a secure HTTPS connection between your computer and the website's server. (For anyone who hasn't been paying attention for the past ten years or so, here's a Wikipedia article about it.) Like any security-conscious Web user, I'm reluctant to log into any website that doesn't use HTTPS, especially when I'm on an Internet connection that's not my own. (Just look up Firesheep to see why.) In the early years of the Web, HTTPS didn't exist, and every webpage was loaded and every form was submitted insecurely. Then HTTPS was developed. For years, many websites used HTTPS just for their login pages, and used HTTP (i.e. insecure communication) for the rest of the site, once you logged in. This was better than only HTTP because it kept man-in-the-middle attackers from seeing your password, but they could still manipulate the content you saw or the actions you took after logging in, or take over your session using Firesheep. At that time, website operators didn't want to use HTTPS for their entire sites because it would slow down page loading. These days, however, most websites that you can log into use HTTPS for everything, because it's more secure and there's no longer any reason not to. HTTPS is now much faster than HTTP, because it allows more optimization and compression. The only websites I can think of other than Instructables that let you log in insecurely are those that don't support HTTPS at all, mostly small-time forums operated by people without much website administration expertise. It appears that Instructables has made some attempts to support HTTPS, as evidenced by this forum topic from 4 years ago. That was a complaint that the certificate (from Fastly, the CDN Instructables uses) wasn't valid for Instructables and was therefore rejected by the user's Web browser, preventing a secure connection. One of the replies mentioned that a secure login page was available at https://ssl.instructables.com/account/login, and that login page is actually still available. However, it is not linked to from any other page that I can find, meaning that everyone who doesn't know about it (i.e. the vast majority of users) is logging in insecurely, meaning that the sentence "When sensitive personal information is transferred over the Internet, we encrypt it using Transfer [sic] Layer Security (TLS) encryption technology or similar technology." in the Autodesk Privacy Statement is factually incorrect about Instructables. Furthermore, working HTTPS doesn't seem to be available at all for the user account settings, meaning that when a user changes their password, both the old password and the new password are transmitted insecurely, which also makes that sentence incorrect. Additionally, when I try to use HTTPS for any other Instructables page, it doesn't work. https://ssl.instructables.com redirects to https://www.instructables.com, while https://www.instructables.com results in the above mentioned certificate error because the certificate Fastly is using doesn't include Instructables on the list of (many) sites that it's valid for. (I can bypass the certificate error and load Instructables over HTTPS anyway, but this is a bad security practice, and the connection does not stay on HTTPS as I browse, making it pointless.) In summary, Instructables seems five to ten years behind the rest of the Web when it comes to user account security. However, I think this could probably all be solved pretty easily, by asking Fastly to enable (or fix, if it's supposed to be enabled already) HTTPS for the domain [www.]instructables.com, and either changing all links to point to HTTPS URLs or (preferably) enabling HSTS, which will cause all users to use HTTPS regardless of the URLs they type or the links or old bookmarks they click. This would likely have the side benefit of speeding up page loading for all users. --- P.S. The lack of HTTPS has also caused me to worry about another aspect of Instructables account security. The Privacy Statement says nothing about how users' credentials are stored on the server(s) to prevent breaches of sensitive information by malicious attackers, negligence, disgruntled employees, etc. (It only says that employees are only allowed to access users' information if they need to to perform their duties, and that data is securely destroyed when no longer needed.) Does Instructables use industry-standard salted hashing (SHA-1 or better) to keep users' passwords secure on the server(s)?

Topic by PointyOintment 3 years ago  |  last reply 2 years ago


Followers

How do I find the list of people I'm following, and my follower, (I used to before the site's update)?

Topic by cyann04 2 years ago  |  last reply 2 years ago


Organizing knex

Do you organize your knex? (I just did) Or do you dump them in a bucket? tell everyone if you organize your knex or not.

Topic by Liberty Prime 11 years ago  |  last reply 2 years ago


Cannot find my instructable

Seen this question earlier but for my instructable it's the same: Yesterday I published an instructable called "One existing remote for all audio devices". Today I checked on it and saw that I could only find it by going to my profile. I cannot find it through the search box or recent instructables. Has it just not gotten published or is something wrong? Perhaps something with "the filters" ? Hope someone can fix this...

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


What's the cheapest company to print custom T-shirts, only front and full t-shirt?

What's the cheapest company to print custom T-shirts, only front and full t-shirt?

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


Redecorating my room

I am re painting/redecorating my room. I need some ideas for colors I should paint the walls! Help!

Topic by thatjawn 11 years ago  |  last reply 2 years ago


Nintendo Wii cd drive to SATA conversion

Hello everyone, I was wondering if someone could help me out with a problem I'm having, I'm trying to use a Nintendo Wii cd drive as an external cd drive(similar to the apple superdrive) and I was wondering if anyone has any idea how to convert it to either USB or SATA, I've spent hours online looking for solutions but all I could find was an Arduino forum with some pinouts, but I don't know what they mean. If anyone could help me out that would be greatly appreciated. Thanks, Daniel http://forum.arduino.cc/index.php?topic=158745.0

Topic by daniel12354 2 years ago  |  last reply 2 years ago


Pumping Water From Basement To Roof

I have a 50 gallon water tank in the basement and a solar tank on the roof. The roof tank is 35 ft above the basement tank and the top of the basement tank is connected at the bottom of the roof tank with 1/2 inch Pex with valves. Is there a simple way of pumping the basement water to the empty roof tank. Unfortunately I can't use city water pressure to force the basement water up to the roof. I am trying to transfer the basement water to the roof leaving the basement tank empty.

Topic by atw58 4 years ago  |  last reply 2 years ago


How To Turn ATH-MSR7s Into Balanced Headphones

So, I've Had a Pair of ATH-MSR7 Headphones for a few months now and I've wanted to know how to turn them from standard wiring to balanced wiring with 3.5mm jack endings (Got the Idea after reading how to do this with the ATH-M50X Model, https://www.instructables.com/id/Balanced-Headphones-for-About-130/) If Anyone can give me an answer or point me to a tutorial (Trust me, I've searched, can't find a tutorial) i'd be mighty grateful. Many thanks for a reply. Also this is for a portable DAC with two headphone Jacks like a Pono or an AK240. Thanks again.

Topic by Desmin Grey 2 years ago  |  last reply 2 years ago


And the winner of the improvisation contest is...

I was just going for a walk, and what do I see? One of those heaters, as shown in the picture.  I immediately saw (pun and hint not intended) the switches, and was anxious to get them home. Unfortunately, I wasn't able to remove the connectors by hand, and didn't have and pliers or wire cutters.  I was 25 meters - less than 5 minutes away from home, and way too lazy to go back and bring some tools. What do I do? Look at the net/grill/cover/protector thing and immediately think that it's sharp and cut through the wires easily, DUH!  Not sure where I got the idea, but I thought that the side, where all of the smaller rods are welded onto the main one, would be pretty sharp. On a second thought, it might not have actually sawed through, but might have ripped through the wires, strand by strand, since it was soft copper. Just thought I'd b̶r̶a̶g̶ share :)

Topic by Yonatan24 2 years ago  |  last reply 2 years ago


Fusion 360 instructor wanted

Does anyone know where  I could find hands on instruction here in the San Francisco Bay Area?  I have tried posting in local media for a part time instructor but have had no luck. Thanks Wayne

Topic by WayneD59 2 years ago  |  last reply 2 years ago


Videos not showing, and cannot remove/ edit videos

Hi troubleshooting team, Here's my info: Windows 8 Firefox 51.0.1 (32-bit) https://www.instructables.com/id/Inexpensive-Rubberband-Powered-Helicopter/ This Instructable, and others I've made, was created many UI revisions ago (back when a "Video Instructable" was a creation option). When I try to load it, a blank space appears where the video should go. There's no way to access the video from the Instructable editor, not even in the HTML. Also, the title image doesn't appear. This appears to only be an issue for Firefox on Windows. I've tried Chrome, Firefox, and Safari on OSX (those work) and MS Edge on Windows (also works). Haven't tried Chrome on Windows. I'd like to know how to be able to remove the video so I can just add YouTube's html code. This is occurring with several of my Instructables. I was alerted to this issue by another user who noticed that a video seemed to be missing, so I feel confident that it's not caused by an issue with my PC. Thanks for looking into this!

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


load a 12V battery by the cigarete lighter

Hello guys, I want to make a publicity trailer with led's that will stand at party's (and on the side of the road in the week). This trailer will stand alone and will be powered by a 12V car battery. I would like to charge that battery while moving it with my car by a long cable to the 12V socket in the car. Should I place a resistor to limit the current or is this not necessary? The trailer is for my youth movement. (sorry for my bad english) Grts, Dieter Belgium

Topic by DieterD4 2 years ago  |  last reply 2 years ago


USB to Arduino USB Wirelessly?

I am currently working on a robot that has a deadline in about a week, and so far, there is only one problem we haven't solved yet: Communicating with it without a wired connection. Currently, we have a program on a desktop send the Arduino the gcode via USB cable. What we would like to do, is send that information without actually having it connected with a wire. Originally, we were going to have a Bluetooth module connected to the arduino directly, and have the desktop program communicate with it. Unfortunately, due to time constraints, we haven't managed to get it working, and would like to move onto plan B: communicate through the USB port, and essentially leave the Arduino untouched.  I did a little googling, and I wasn't able to figure out very much on Bluetooth dongle -> Bluetooth -> USB that was actually positive and helpful. Currently, we have a few HC06 bluetooth modules lying around, as well as a few spare Arduinos. I was thinking of connecting one of the modules to another arduino, connect that arduino to the robot's arduino, and communicate with the first arduino via the bluetooth. Essentially, the first arduino would be an interface for the second one. Would this work? How would I go about doing it? In short: What would the best method to communicate between a PC and the USB port of an Arduino wirelessly be? Anything helpful is always appreciated, thanks!

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


How much power need a laser to cut through 3/4 MDF?

Hi. Just wondering how much power need a laser to cut 3/4 MDF in a single pass?

Topic by johanx4 2 years ago  |  last reply 2 years ago


Error when downloading PDF of "Stop using Ferric Chloride etchant! (A better etching solution.)"

I get this error when clicking the download button on this: https://www.instructables.com/id/Stop-using-Ferric-Chloride-etchant%21--A-better-etc/ happens with  Chrome and Firefox on Windows 7 (note other downloads work fine) ---------------------------- (function(){var c=0;if("undefined"!==typeof CustomEvent&&"function"===typeof window.dispatchEvent){var a=function(a){try{if("object"===typeof a&&(a=JSON.stringify(a)),"string"===typeof a)return window.dispatchEvent(new CustomEvent("lprequeststart",{detail:{data:a,requestID:++c}})),c}catch(f){}},b=function(a){try{window.dispatchEvent(new CustomEvent("lprequestend",{detail:a}))}catch(f){}};"undefined"!==typeof XMLHttpRequest&&XMLHttpRequest.prototype;&&XMLHttpRequest.prototype.send;&&(XMLHttpRequest.prototype.send= function(c){return function(f){var d=this,e=a(f);e&&d.addEventListener;("loadend",function(){b({requestID:e,statusCode:d.status})});return c.apply(d,arguments)}}(XMLHttpRequest.prototype.send));"function"===typeof fetch&&(fetch=function(c){return function(f,d){var e=a(d),g=c.apply(this,arguments);if(e){var h=function(a){b({requestID:e,statusCode:a&&a.status;})};g.then(h)["catch"](h)}return g}}(fetch))}})(); (function(){if("undefined"!==typeof CustomEvent){var c=function(a){if(a.lpsubmit)return a;var b=function(){try{this.dispatchEvent(new CustomEvent("lpsubmit"))}catch(k){}return a.apply(this,arguments)};b.lpsubmit=!0;return b};window.addEventListener("DOMContentLoaded",function(){if(document&&document.forms;&&0 AccessDenied Access Denied 07BB2BDF001C8E39 UNsh+3Qc6mUeOnVk7FiMOvXWaiu+9vpA24ZxkR6/TCCRjKqR0A9UsViskbkpNlWgADghstM9XYo=

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


Sound location & motion tracking robot head

Hi guys I hope this is ok to ask about as I have followed Instructables for ages but not used the forum part before. I have a bit of experience of arduino projects and doing basic sketches for them but nothing as ambitious as this so am seeking a bit of advice if possible. I'd like to be able to have a droid/robot's head that can rotate to focus on the direction of a sound, then if it sees a person once looking in the direction it heard the sound, to then roughly track them (move its head) with a camera. I'm fine with motorisation and that side of things, but I'm not sure if this sort of fairly elaborate setup would be possible with an arduino or would need something more powerful like a rasp pi? I'd imagine that I would need an array of several mics as inputs around the bot in a 'circle', and code that can estimate the direction by means of the signal strength from the mics when it hears a noise.  I think this might be something I can manage to do, but then it'd need a suitable camera and a means of tracking and I've no idea how the tracking side of things would work with that. I'd be grateful for any pointers to get me going thanks.  It's not something I could do without help but hopefully doing it bit by bit and with some advice I'd be able to do this, as I would really love to make it work! Many thanks! Jim

Topic by Mr Joshua 2 years ago  |  last reply 2 years ago


Arduino automatic barrier

Hi , I need a little help on programming a arduino to complete a college project , I've to get a barrier to raise 90 degrees to allow a toy car to pass automatically, i would like to use a the motion sensor and a servo to do this but I dont know how to get one to trigger the other. I would like to know where to look up to get a idea of how to do this . This is my 1st post so sorry if this is in the wrong forum Thank you

Topic by DavidO242 2 years ago  |  last reply 2 years ago


How Do You Start Collections?

How do you start collections? I want to make a collection, but I can't see a button to start it. There isn't much more to say........

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


messing with a clock

For Halloween I want to create a little knock off of the clock from Disney's Haunted Mansion. I have found a great image of the clock face online. How feasible would it be for me to hack a simple electric clock and have it 1) run backwards and 2) run very fast Thanks!!!!

Topic by Purple Chez 2 years ago  |  last reply 2 years ago


Regarding motor controller selection.

I need a motor controller for 24V, 20A Actuator. The motor controllers receive 16V from battery and also had to boost the voltage to meet actuator specifications. Can anyone help me finding a motor controller of such sort?

Topic by GamanM 2 years ago


Contest Prize Not Shipped?

Hi there! I received a runner up prize notification 16 days ago that I had won an Arduino MKR 1000 for placing runner-up in the Arduino Contest 2016. I claimed my prize, and haven't heard anything about shipping or any other kind of confirmation yet. The other prize I won for coming in 2nd place on another contest notified me and shipped very soon after I accepted. Can someone check to see if everything is ok? Attached is a screenshot of the winning prize message I was sent (and accepted). http://imgur.com/a/rKGoh Thanks, Esper2142 (Josh)

Topic by esper2142 2 years ago  |  last reply 2 years ago


IC connection with Arduino .

How to connect IC L298n with Arduino ??

Topic by manjusulagna154 2 years ago  |  last reply 2 years ago


How many Knex balls do you own?

I recently bought a bunch of ball from knex.com. How many do you have?

Topic by DELETED_DELETED_DELETED_16nato 7 years ago  |  last reply 2 years ago


Mosaics and Lead lighting.

Hi all. I am  a new member with tons of creativity inside me. I create stuff from other peoples junk. For many years I have wanted to turn my hand at Mosaics and Lead Lighting. I want to create a beach scene in Mosaic of Shoalwater Bay/ Penquin Island which is near Rockingham, Western Australia. I already have painted a 16 foot by 7 mural of this idyllic part of the world on my lounge room wall. Looks magnificent. I want the mosaic to be at least 4 feet by 3 feet. How do I stop the mosaic from sliding off the mounting board? Do I drill a myriad of small hole into the board so as to give the medium purchase? Also I want to make Lead Light full window coverings, from 2 feet square up to 4 feet square. Are there any members who would like to give me some clues on how to begin? In researching accessibility of stain glass I have not had a lot of success here in Perth, Australia. Maybe I need to go to junk yards? Thank you for reading my request. Anticipation is high that I will actually begin creating my creations. Bretrick

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


How to Calculate Viewership

As the statistics page on Instructables has never been particularly reliable, I have used an alternate method to check my viewership for some time. As other people have expressed interest in statistics, I've decided to share how I do it. Overall viewership between two points in time To use this method, you will need to have taken a snapshot of your member page and have logged it into the Internet Archive or recorded the number of views you have attained at a previous date. Compare the number of views between the two dates to figure out the number of views that have occurred during the period between the two recordings. To find average daily views Using the date from the Internet Archive snapshot or your own records, use this to calculate the number of days that have elapsed since the previous entry to find the number of days that have transpired. Divide the difference in viewership between the two dates by the number of days that have gone by to find your average overall daily viewership. To find the average daily views of your instructables Perform the above steps and divide the number of daily views by the number of instructables you have posted. ----------------------------------------- As with most statistics, the figures you will see from these calculations can be skewed. However, they are still good for getting a good general handle on what the situation is for you as far as viewership goes. If you have not used Internet Archive beforehand, it is a harmless way to log this information as well as take a screenshot of something that you and others can look back on at a later date. Statistical use is only one of many this sort of thing can be used for.

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


Getting project viewership statistics

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?

Topic by walter.warren1 4 years ago  |  last reply 2 years ago


Display Stand for Vinyl Records

Good day i am looking for a set of drawings to make an old style  Display unit for Vinyl Records exactly like they had them in record shops when only vinyl was sold 

Topic by Jurg650930 2 years ago  |  last reply 2 years ago