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"positive"

Today was the first time i wanted to comment, but found myself confronted with this: "We have a "be nice" comment policy. Please be positive and constructive with your comments or risk being banned from our site." In my personal opinion, constructive comments are rarely positive and positive comments tend to be rather useless. Who thought the statment quoted above is a good idea and can it be changed?

Topic by Xaromir    |  last reply


Servo Position

Hey i was trying to control the servo using joystick(potentiometer). i am but stuck at a problem when joystick is at center servo is at 90° when i move the joystick to left, servo sets at 0° and when i release the joystick it came back to its 90° but when i move the joystick to right, the server does sets to 180° but does not come back to 90° on release the joystick, it sets to a little more than 90° like 100° what could be the problem ? #include Servo servo; int sp ; int js_x; void setup() { servo.attach(3); } void loop() { sp= map(js_x ,0 ,1023, 0, 180); servo.write(sp); }

Topic by DabuHackker    |  last reply


sidecar wheel position

I've looked up sidecars on google and found lots of information for sidecars on vehicles that have front steering only in which case the sidecar wheel tends to be positioned parallel to somewhere between the midpoint and the rear of the vehicle, however if the vehicle has both front and rear steering would the sidecar wheel be best positioned parallel to the exact midpoint or not?

Topic by ambientvoid    |  last reply


Ultrasound 3D positioning

How would you use an array of ultrasonic sensors to determine the 3d position of an ultrasonic transmitter. Basically i want an ultrasound transmitter on my hand that gets picked up on an array of 5 or so receivers that outputs the position via usb.

Topic by redshirtdeath    |  last reply


Which wire is positive?

I have an electret mic that I want to use, but it has green and a black wires on it, would green be positive? Or would black be?

Question by Zem    |  last reply


Are positive comments votes ?

*same as topic*

Topic by bryceronie    |  last reply


Bluetooth and indoor Positioning

I am Student and new to BLE technology and I would like to perform indoor positioning and have the position of my tags on my computer. what material would i need for this?

Question by btodem  


Position sensitive device

Hi guys, I'm looking for a 2D position detecting device!! And I'm looking for a specific one, but unfortunately I don't know the exact name or working principle, but it was a long and thin bar, with a usb socket, probably connected to a computer and gives the readings (position) once any object crosses the cross-section area aligned with the bar. Can you also suggest any easy-to-use 2D optical position detection devices/ sensors!! Can you please advise!! Appreciate your cooperation!!

Question by aftbx9    |  last reply


GPS position transmitter? Answered

I am an aspiring pilot and would like to build a Personal Locator Beacon. I want an arduino type setup that would take my GPS data and transmit it every few minutes for 5 or 10 miles (or more depending on the legality) to a receiver that displays my last known position, my distance away, and my direction (from the receiver). Is this possible? It would also be nice to transmit my position via Morse code too in case my receiver was broken or could not be found.

Question by conrad2468    |  last reply


Resistor negetive to positive?

Hey. I'm changing all the LEDs in the switches in the car. All is going well except one switch, there is 1mm distance between a circuit board and the LED. The LEDs are 12v no resistors. I'm using ultrabright red LEDs that need resistors. However, I'm sure I've seen circuits that resistors go on the negative and positive leg before the LED. Would this work or would the LED still blow? Thanks.

Topic by Josho    |  last reply


Positive affirmation box

I am trying to make a positive affirmation machine so that when my students turn in homework it will either give an audio message or display a message that says something good.  I know I need to build an optical sensor but I was wondering if there is a build that you can suggest that I can modify?  I have moderate skills with building electronics and access to plenty of materials but I am lost as to how to start.

Topic by Mr.E1    |  last reply



How to positively charge something? Answered

I was sitting here in the middle of a thunder storm and I had a thought, usually the clouds are negatively charged during a lightning strike, so, if you used a large cannon to blast a positive iron ball into the air, you may be able to get lightning to strike it, then collect it to see what the lightning did. So, you would you charge a cannon ball? 

Question by jj.inc    |  last reply


Which is positive, negative and ground? Answered

 i cant figure out which prong is which just by looking and i dont have an expertise in electronics, so if you guys could help that would be wonderful, heres a pic 

Question by gantyman    |  last reply


2 Position Servo Controller

I need some help, I am trying to create a damper control using a servo and a 555 timer. Is there anyway that you can use a 555 timer to make a servo move back and forth between 2 positions (0 degrees and 90 degrees) with an with and on/off signal and not a pot? So when the thermostat sends power, the damper moves to 90 degrees, then when the thermostat shuts off the servo returns to 0 degrees? Thanks for the help in advance. -Ryan

Topic by WingmanSVT    |  last reply


ME Position at IDEO Chicago

Global design and innovation consultancy IDEO, in search of a creative, cutting-edge senior engineer to help bring user-centered designs products and services to life. Start date: immediately. Location: Chicago. YOU: * Are naturally curious, creative, and on top of technology trends. * Are an inspiring engineering thinker and doer who works well with individuals of varying (i.e., non-engineering) backgrounds. * Are an engineer at heart, but like the idea of embracing tasks as varied as building prototypes for field-testing in Kenya to helping a large Midwestern consumer goods company plan out a strategic roadmap for a new product category. * Are a good visual and verbal communicator who can explain complex technical concepts simply and clearly to clients—and fellow team members. * Have deep engineering expertise (3-5 years) stewarding innovations from concept through launch, or analyzing and solving complex problems. * Love creating looks-like/works-like prototypes and have relevant skills such as fluency in 3D CAD, basic skills in interactive electronic prototyping, good shop skills etc. * Hold a master’s degree in an engineering or related field or have equivalent professional experience. * Have a diverse and eclectic background that will add new perspective to our team. IDEO CHICAGO: * Is a design and innovation consultancy that uses human-centered design-thinking to help businesses and not-for-profits grow via the creation of new-to-the-world products, services, and environments. * Provides a creative playground for just a few of following disciplines: Human Factors Research, Engineering, Industrial, Communication, Business, Environments, and Interaction Design+ Is a studio environment that is highly collaborative and unconventional, that encourages and supports new ideas, and that is playfully serious and non-hierarchical. If you like getting your hands dirty, you’ll love our organic rooftop garden. * Is known for its award-winning work in the areas of branded experiences, energy, financial services, health and wellness, consumer products, and food and beverage, among others. * Counts among our diverse clients: AT&T;, PNC, McDonald’s, Target, Ford Motor Company, and Bayer, among others. * Is a 55-plus-person studio in the heart of Chicago’s West Loop. If this sounds like a good professional and personal match, please provide us with a portfolio of previous work. The portfolio may include—but doesn’t have to be limited to—CAD images, technical drawings, part/prototype pictures, and mathematical and technical simulations. We’d also love to hear about your hobbies, passions, and creativity outside of engineering. We’re looking forward to meeting you. http://www.ideo.com/culture/career/senior-mechanical-engineer/

Topic by mweibler  



how can i get the cursor position using cmd?

How can i get the cursor position using cmd?

Question by Fox-san48    |  last reply



Positive Van de Graff Generator?

I know that a Van de Graaf Generator creates a negitive charge if you use a rubber belt, But how would one make a positively charged friction style van de graaf generator? What materials would you use?

Question by JohnM703    |  last reply


Is the copper on electric wire negative or positive?

On elecric wire there are two kinds of metal. One is copper and the other is iron. Okay, now on a battery there is the positive side (+) and the negative side (-). Wich wire goes where?

Question by Potaterchip    |  last reply


how to convert negative pulse to positive

Hello.. I built a transistor scr to turn on leds in my car from my remote.. my remote uses negative pulses to turn on and off... now the problem is that the scr needs a positive pulse to turn on but it uses negative to turn off,, so turning it off isn't a problem.. Im pretty sure I can just use a transistor to do this.. here is the schematic I used to build the scr...http://www.talkingelectronics.com/projects/TheTransistorAmplifier/TheTransistorAmplifier-P2.html#Latch  ... fig 75b... is there a way to modify this circuit to make the turn-on negative or just a way to use another transistor to make my negative pulse positive? I could easily use an automotive relay to do this but im trying to make this as small as possible and its still on the breadboard.. I want to get this figured out before I put it on pcb.. thanks for your help

Topic by aclark32  


Position of gyro and iPhone during calibration?

I have a gyro and using an app on the iPhone (tilt meter).  My question may be basic. But does the gyro sit ontop of the phone, while the phone is standing up (see attached) or is the iPhone laying flat (display up) while the gyro is ontop of the phone?

Question by nmsr1196    |  last reply


How to position my LEDs in a circuit?

Hi there, I'm currently doing some soldering, at this moment I got the following: 2 batteries (that both got 1 connector for the output and 1 connector to charge) connected to a 4PDT switch. Half of the switch connects the batteries to the charger the other half (the output) goes to a DPDT switch. It's wired so that the battery that's not being charged is used for the output. The DPDT switch is used to switch between the selected battery and the optional 230V AC -> 12V DC adapter. Now I'd like to add some LEDs, for the following purposes: LEDs to show which battery is being charged - should be on if a battery is actually being charged. LEDs to show which battery is being used - should  not be on if the 12V DC adapter is being used. LEDs to show if a battery or the wall adapter is being used. I thought I'd put one pole of each LED before the switch and the other one behind the switch, is this the right solution? If this is the correct way, would it be recommended (when working with the switch for the batteries) to put the + side of one LED before the switch and the + side of the other LED behind the switch? Kind regards, Niels

Question by Niellles    |  last reply


Indoor spacial position system (indoor mini-gps)

Hi all! I'm hoping to work on a little system to allow a device to work out where it is in a room, with some degree of accuracy. I've thought of a few ideas; cameras and tracking points, sonar of some sort, and a few others, but they all have the caveat of requiring direct line-of sight, all the time. My most hopeful idea is that I could create a sort of mini GPS system, thus: A number of radiowave transmitters, perhaps FM, sit in the corners of the room, and transmit the time, or more likely something like 0-9999 in binary, all the time. My device then moves around the room, and works out where it is in the room, based on the number received by each of it's 3(?) radios, and the difference between them. There are a few potential caveats to this approach:   The radio waves may well bounce off the walls, and confuse the receiver.   The assumption is made that there's enough time between transmission of the signal and receiving to notice a difference   Obstacles to the line-of-sight might skew the difference The list is long. I don't suppose anyone has any input on this idea, do they? Graham

Topic by paradoxdetected    |  last reply


Text boxes in instructable pictures change shape and position: what to do?

Every time I open my new instructable (high end greenhouse) for some minor editing, or viewing comments, I notice textboxes having moved, sometimes even ouside the pictures. Editing puts them into shape, but next time they are back in the wrong place. This makes the instructable somewhat confusing. Anyone had the same problem, solutions?

Question by BobS    |  last reply


Odd Breadboard Question

Hi All  I am brand new to hobby electronics and would love one day to be able to create the endless amount of cool Instructables but I have ran into a problem on my first attempt at putting theory into practice and would really appreciate any help. I have made two diagrams / images showing the circuit I made I have attached them to this post. I am using an Arduino Uno as a power source.... I ran a 5v positive from the 5v pin on the Arduino using solid core jumper to the top of the breadboard onto the positive row / rail and a negative / ground jumper to the bottom of the breadboard. In the middle of the breadboard I placed a 1k ohms resistor bridging the gap / grove/ divide and ran the positive feed through it and on to the anode leg of the LED. The cathode leg of the LED was connected to the negative row / rail completing the circuit. All works as it should because of the high resistance from the resistor the LED barely lights and is green as it should be. So without using a multimeter I know and can see the resistor is clearly working. However if I move the resistor so it's still on the same line / row as it was but no longer bridging the gap the LED goes super bright and turns yellow which means that the resistor is no longer working which I can't figure out why because I know there is definitely current flowing through it given the extreme reaction of the LED. I vaguely remember reading somewhere on these forums that Fritzing is not liked very much so I hope no one minds but to help explain what I mean above I have created two diagrams / pictures using Fritzing. The images diagrams shows the resistor "bridging" and working and the other shows it not bridging and therefore not working. So my question would be why given the resistor has current flowing through it does it not work unless it's bridging this middle divide / gap / grove? It makes me think I am missing something really stupid that everyone should know about breadboards but just seems really odd to me. Many Thanks Rab

Topic by belfastrab    |  last reply


Digita Media Enthusiast/Tech Support Specialist

Job description ABOUT PAI PAI is a community rich in culture and diversity, distinguished by its high level of job satisfaction. We believe that our team members are our most valuable assets, so we recognize and reward great performance. We believe in open communication and foster an environment of creativity, loyalty and respect both for employees and clients alike. THE BIG PICTURE Do you like to get into in-depth trouble-shooting that would revolve around TiVo, DVR, or multiple types of digital video media? Do you excel in communicating with people in both a technical and non-technical way? Are you known for thinking outside the box when it comes to creative trouble-shooting solutions? If so, there’s a strong possibility you’d fit in well with an exciting new project at PAI. As Team Leader, you’ll assist in providing first-and second-level customer support for the full line of video media software products for our newest client. You and your team will interface with customers via telephone and email to provide troubleshooting, patches and/or bug fixes, version upgrades and software use tips. Ensuring the highest level of customer satisfaction is key, and will be measured by providing quality issue resolution within the established response time intervals and service level standards. DESIRED EXPERIENCE/QUALIFICATIONS • Basic professional understanding of video standards such as NTSC and PAL, frames and fields, and frame rate and basic video signals such as composite, S-video, Component, SDI and DV. • Basic understanding of broadcast digital video formats and compression such as Standard Definition, High Definition, MPEG-2, GOP Structure, Program and Transport Stream, as well as popular internet streaming, and download and desktop media formats such as Windows Media, Real Networks, QuickTime, MPEG-l, MP3, MPEG-4, etc. • Understanding of audio channels, digital audio sample size sample rates. • Understanding of non-linear video editing concepts. • Familiarity or use of a content management system or digital asset repository THE EVERYDAY VIEW • Phone, Email, and Remote Desktop support to resolve client issues, • Lead a professional team in providing world class support to leading industry customers • Verify and escalate bug reports to Engineering for resolution • Document problems/resolutions for internal/external knowledge base articles. • Effectively communicate with customers, both written and orally, to manage expectations through the trouble-shooting and issue resolution process. WE’RE LOOKING FOR SOMEONE WITH: • Excellent trouble-shooting/problem solving skills with high attention to details and good follow-through. • Excellent written and oral communication skills. • Ability to install and configure Windows Operating Systems. • Basic hardware, software, operating system and device driver troubleshooting skills. • Basic understanding of MS SQL and/or Oracle server installation and configuration. • Basic Linux/Unix installation and administration skills. • Understanding of Windows File Systems, configuring IIS, JBOSS, Apache, File permissions and Disk management. • Ability to troubleshoot basic networking and connectivity issues including TCP/IP, DHCP and DNS. • Ability to effectively work with a variety of personalities and occasional stressful situations. • Ability to multi-task under time constraints. • Able to work Evening and Late Night shifts. • Experience providing support within a Network Operations Center environment, • Digital Media or related Software or Production Service or 2+ years Digital Media Encoding/Production Experience.  To apply: 142a+8972@c1.catchthebest.com http://pai.catchthebest.com/apply/142a/8972  Cindy Law HR Manager 858-495-3525

Topic by clawpaisd    |  last reply




Do capacitors have positive and negative terminals?

What are electrolytic capacitors? In what way they are different from normal capacitors? The charge on a capacitor depends on how i connect it to battery,but electrolytic capacitors have one long and short terminal to differentiate between positive and negative terminal. Why?

Question by deepakmurali    |  last reply


convert negative pulse into positive using a transistor?

Hello... ive built an scr using transistors to turn on leds in my car with my remote.. my remote uses negative pulse.. now the scr(latching transistor) that ive built turns on with a positive pulse and off with negative.. so turning it off is not a problem.. I need to change the negative turn on pulse to positive to turn it on though. I know theres a simple way using a transistor to do this, but im still learning and my knowledge of transistors is still limited.. here is the schematic I used.. figure 75 b. I followed the schematic and it works just fine..http://www.talkingelectronics.com/projects/TheTransistorAmplifier/TheTransistorAmplifier-P2.html#Latch  ... thanks for helping me out here

Question by aclark32    |  last reply


Positions available at Instructables (October 19, 2018)

Working at InstructablesIf you don't see an open position that fits you, please don't hesitate to drop us a line and say hi. We are always actively building our network of curious, creative talent with a passion for making. To introduce yourself, please send your cover letter and resume to auctoramentum at instructables dot com with a fun, robot-related subject line

Topic by ewilhelm    |  last reply


how to - detect right object in right position?

Hello DIYers, I have a small square object (6cm x 6cm) that I must put in a mold, but how it's square, is possible put it in any position, but only 1 is the right one. The reference is a 5mm label in the top. I want detect if the object in the mold has the right position. Actually I have 5 different objects, the difference between them is the number in the label. My idea is use a Raspberry Pi + Pi Camera + openCV. There will be a collection of images for reference and the camera will be recording jpgs (maybe 1fps) and comparing with the images in the collection. There will be a red led lighting, but if the RPi detect the right object in the right position will light a green led. Maybe somebody knows a similar project? is possible with this hardware/software? some recommendation? For better idea, I'm attaching a mock-up

Question by HédelN    |  last reply


HS Tech Director, teaching positions in SF

A friend forwarded this job posting, figuring Instructables users might be interested!It sounds like a fun place to work:Lick-Wilmerding is a pretty cool high school in San Francisco. Bothour daughters went there. They have a full mandatory shop course forall students -- woodworking, metalworking, glass, architecture, etc.This is a job posting for a new tech director.Job posting info here. They also have listings for English, History, and Math teaching positions.

Topic by canida    |  last reply


Code of determination the position of my finger in a screen

Hello guys I am so happy to be in this big helpful community. So I am student and I love electronics, this is why I am working on a touch screen working with the technology of projected capacitive sensors using, of course the Arduino Unoto determine the position of my finger on the screen and show it on an interactive screen (like the project of the 3D tracking interface https://makezine.com/projects/a-touchless-3d-tracking-interface/). Because I want to know more about this domain also to share this project with the geek of electronics in Instructables and learn more about Arduino . So please guys I need an example of an Arduino sketch to show the position of my finger. I know that's I didn't talk about the details, so if you want to make this project happen , this is my Facebook account ( https://www.facebook.com/profile.php?id=100017432321426)

Topic by FarfaouiM    |  last reply


A Third Math Sign - not just positive or negative

I was thinking about a random thing the other week. We have positive and negative signs in widespread and ubiquitous use in mathematics. What if we had a third sign? The number line would look like the one in the picture. It's not even a line anymore. Since I am absolutely dumbfounded as to how even the basic operations would play out in this type of system (although I have a rough idea for addition and subtraction), and nor do I know what the possible applications for a redundant sign could be, I'm just putting this here. Got ideas? Fire away.

Topic by nutsandbolts_64    |  last reply


how to detect sensor position with arduino uno

Hi Guys recently i started use arduino UNO and with simple programs to read from analogue pins wasn't hard. now i'm facing a challenge, as i have a sensor mat 16x16 (rows and columns) i want to read 4 rows and 4 columns i'm trying to use the analogue pins as input for rows and digital pins from (8 to 11) as output i want the program to detect the position of the sensing area such as (row1 colum 4, for example) and give me the number that measured over this area. my code is very bad but i'm trying, specially my background wasn't programming or science. any ideas will be great.

Topic by Najeebgh    |  last reply


Arduino with NXT servo position won't stabilize?

I'm using the arduino PID and encoder libraries to run an NXT servo for position.  Problem is, it won't move quickly to where I want, or accurately, or without oscillating all at the same time (and never for accuracy).  I need it to go to exact encoder points with minimal oscillation or delay (I plan on using it in a delta bot.)  I know it's not the best motor for the job, but 1) I already have enough, it costs me nothing more, 2)they're very accurate, and I know they CAN be run just fine (the NXT itself works great).   I've looked on websites and stuff for tuning, but nothing I found works, because of the weirdness of the motor itself (which can start quickly, but takes up to 400 milliseconds to stop).  The best tuning parameters I found so far are 5.5, 15, 0.75 (P,I,D).     

Question by jduffy54    |  last reply



Ch. 3 In Which Old Science Creates New Technologies

Hey Instructastorians! I know I haven’t been keeping my Instructables Intern Blog updated, so in advance I apologize for the lateness in this update. Things have really picked up since the last time I posted anything here! As some of you might remember back, a couple of weeks ago Instructables HQ, which where herein be referred to as Instructables Laboratories (Seriously, that’s what they call the building here!), held a massive social event involving Liquid Nitrogen and fast freeze Ice Cream. It was a rising success for everyone and more than 70 people visited our lab! The Ice Cream was fantastic to, due to our delicious confectionary staff particularly Angie, and our Maker Faire ticket raffle was awesome. As for the Faire itself, I unfortunately was not able to participate in the Instructables Booth, being more than slightly preoccupied with my own DIY PIXAR stand, but I heard it was great. They managed to give away almost all of the Lab’s business cards and even managed to sell several dozens of our Robot T-Shirts! Sure beats the hell out of being stuck in a dark room, with several hundreds of people jamming into your personal space, while Tesla Coils scream Classical Music at 56 decibels… BUT, last week after the Faire, things became sadly much more subtle. Several people around The Lab were still recuperating from the hectic events of the Faire and there wasn’t much to do around the office. Being recently promoted to the job of Delivery (meaning I get to control all outward shipment of prizes and gifts), my goal was focused on trying to ship out a lot of the past closed contest prizes from a couple of months past. Thankfully Instructables had a monthly event to obliterate this post MF doldrums- INSTRUCTABLES BUILD DAY! This is held on the last Friday of every month, where most work is momentarily cast aside and everyone instead works on their own personal Building projects! SWEET! So for my project, I ended up creating something really cool involving PVC pipe connectors, a Shop Vac and several feet of clear vinyl tubing ('ible coming soon).  I'm making a note here- HUGE SUCCESS! As for myself, even though I might’ve gotten used to waking up at 6:00 AM to commute 1.5 hours to San Francisco, I’m still completely thrilled to be working here. Always something new going on and never a dull day at the office Lab. OH and I finally got my own key! Now I can enter our labs without setting off the Turret Defenses! -New Intern 2011, SHIFT!  

Topic by SHIFT!    |  last reply


Major Work Location/position sensor for a cricket bat

My name is NicholasI am in Year 12 at Parkes Christian School and making a major work that i can track where i am hitting a cricket ball on a bat. similar to what hot spot is and to be able to relay the information on the position to a phone via Bluetooth(video to help with what my idea is) At the moment i have ordered a Raspberry pi for the help transmit the data, EeonTex Pressure Sensing Fabric, EeonTex Conductive Fabric. But i dont know what else i would need so i can get the information of the position to a raspberry pi like what types of thread do i or is there some thing else i need as this is my first time making something like this Thanks in advanced

Topic by Nicholasrsk6190  



Do speakers have a Positive + and a Negative - like LEDs? Answered

I'm planning on hooking up a small speaker out of a cheap toy to a 3.5 mm Mono jack that will go into my mp3 player but I don't know if it matters which wires go where. Do speakers have a Positive + and Negative - like LEDs? If they do, how would I find it out? Thanks

Question    |  last reply


Electronic control for RV positive air pressure system..

I am biulding a positive air pressure system for my RV. I would like to include an electronic control system that will allow equal pressure inside and out or positive oressure inside. This will NOT allow any dust to enter the vehicle.I was thinking using an altimeter/pressure sensor for measuring internal and external air pressures. My concern is that the outside air flow while travelling will create a negative pressure reading.I also require circuit diagram for sensors cuopled to a 12v air blower.I look forward to comments and ideas.

Question by WAmaker    |  last reply


Position lock free stop seam type hinges

I am working on mechanical hinges. It's a case design for mobile along with hinge.i need some input regarding position lock seam hinges like the one shown in attached images/i am designing this case for ipad/tab.How exactly these hinges works ? and i need internal 3d model of these hinges? how exactly it look from inside? and what is prefered manufacturing method for making these type of objects ?

Topic by adityay17    |  last reply


Which side of the arduino protoshield is positive/negative on this area?

I am just starting out with Arduino and I have been working on assembling the Protoshield. I am about to install the green LED shown in this picture from Make.com but I don't know which way the LED should be orientated because it didn't say in the guide and I couldn't figure it out on the board. If you could please say that 1= positive and 2= negative it would help me out alot. Thanks!

Question by alexh934    |  last reply


How to control more positive current using microcontrollers?

Most microcontrollers can directly control low current  at +5v. Using NPN transistors I can control higher currents, but now negative. My question is: how to switch more positive current (>40mA) than my microcontroller can do directly? The obvious idea is to cascade a PNP to a NPN transistor, but aren't there ICs ready-made for it? More or less like UNL2803A, but using Sziklai arrays instead. What would otherwise be the "standard" way of doing it?

Question by eshneto    |  last reply


Turn on certain light positions on a string of lights by controller?

I have a 10 yard table.I want to be able to light up certain locations on the table according to what part number I select. Say I choose a number that I want the 5-10 inch, 22-23 feet, and 30-32 feet ranges lit up to indicate where cutoff are. How can this be done?

Question by tuanman    |  last reply


Is The Insulated Wire In An RCA Cable, The Negative or the Positive One?

I was just trying to build an RCA to USB cable but I am not being able to find the polarities! Please HELP!

Question by mraghib    |  last reply