Search for touch sensitive in Topics


Electronic touch sensitive panels

I am somewhat new to electronics and want to make a set of touch sensitive panels that light up quickly and dim slower.I plan on puting them right next to each other so that a can drag my finger across them.I was thinking to build a circuit for each panel, That lights an led upon touch, so the parts for the circuit need to be cheaper. I also need an opaque or clear material that you can see an led light up from under and that is conductive. If you've got any ideas then please share them.

Question by Jgniklu    |  last reply


Touch Sensitive Floor Mats

I have one of those Halloween floor mats that when you step on them, it triggers a sensor that has it make a screaming noise. Is there anyway to hack this? It's annoying and I want to make use out of it.

Topic by thatjawn    |  last reply


having some issues with a touch sensitive switch. ideas?

So a little while ago i had put together a circuit for a touch sensitive switch based off the 555. it works great, it senses when i touch it and operates an optocoupler from that. the issue is it senses when i touch anything electrically connected to it. im currently using a power brick to power it (supplying 5v and 12v, the switch is part of a lerger project) and if i touch anything thats connected to ground the switch activates. the part that confuses me is that theres no ground plug, just the two main AC wires. Somehow its sensing through one of those wires as well, and when capitance builds up elsewhere in the system the switch activates. as far as i know the only way for me to isolate the switch is to power it using batteries. is there any way to power it still using the power supply without it sensing things other than me touching it?

Question by zack247    |  last reply


Touch Sensitive counter project question

Hi everyone, Great to be part of this community. I am trying to make a touch sensitive counter, the sensor has to be as flat as possible, something like a thick cardboard, or I can put a flat sensor in between two sheets. It needs to handle about 10-20lbs of weight. It will go under fabric like carpet, so it cannot be super sensitive, clickable is fine. It will be connected to a very simple 1 or 2 digit counter. Any suggestions? PS: Eventually I'd like to upgrade this with a system that can instruct something else, for example 5 counters, display etc. Or be able to use bluetooth or wifi or arduino, and be able to count back. For example input 10 and it will count 1/10, 2/10, 3/10, etc..

Topic by tees_deney    |  last reply


Tactiontape - Touch Sensitive Tape for Rapid Prototyping

Hi everyone, Tactiontape is a one-dimensional touch sensor that curves. It's designed to make building interactive physical prototypes easier, even ones with non-planar or complex surface geometry. It functions as a flexible potentiometer and uses a strip of graphite to express a linearly resistive electrical signal, one that corresponds to how far along the tape you've touched. Each sensor is hand-made using materials from an art supply store. Here's a demo: http://www.youtube.com/watch?v=0ggYn70TpZY For purchasing, photos, and more detail: http://www.etsy.com/listing/87989636/tactiontape-curved-touch-sensors-for

Topic by davidholmandotme  


Doornob touch sensor

I took apart a stud finder to see how it worked. Did a quick google search and figured out they work similar to tough sensitive lamps (capacitance). So after soldering an on off switch to replace the push button on it, I taped it to my door, and fine tuned the sensitivity wheel. Now when someone touches the doorknob (on either side of the door), It lights ups.

Topic by boggysandman    |  last reply


What transistor should I use for a touch-sensitive switch?

I would like to run a 5v green laser diode off 4v (because it is easy to blow at 5v) using a touch-sensitive switch. I hope to use the switch with a thin layer of plastic in front but if the current from a human cannot pass through to activate the switch then I'll leave that feature. Anyway, I would like to know what Darlington transistor or regular transistors (to make a Darlington pair) to use that will operate the laser diode momentarily and safely. Thanks, Jim The link to the laser diode: http://www.dealextreme.com/details.dx/sku.10094

Question by pyro-jim    |  last reply


Touch Lamp Switch?

Is there such a thing as a switch that is touch sensitive so just a tap will activate it. I want to make a lamp out of an empty glass coke bottle and i want to be able to touch the cap to activate it. Im looking for a small piece of silver metal that will match the cap so i can place it on top, OR a way to make the actual cap the switch. Thanks!

Topic by um0123  


555 monostable sensitivity?

Has anyone built a 555 monostable circuit that was extremely sensitive for no apparent reason? I'm trying to use one in a rube-goldburg machine, and for some reason it's extremely sensitive to any sort of touch! The circuit sometimes comes on for no apparent reason, other times it will stay on for longer than the expected duration after the button is pushed. I'm using non-CMOS 555 on about 5 volts to run a small LED. The capacitor I used was a 0.01 uF on pin 1 to 5, and a 1 uF electrolytic on pin 1 to 6. I used a 1M resistor on pin 7 to 8.  I'm simply baffled by it. I've tried using different breadboards, different PSUs, brand new components, and correct gauge wire, but despite everything being seemingly fine, it's still shows the sensitivity. Anyone have any advice?

Question by tylervitale    |  last reply


Can i make a touch sensitive button? Answered

Im working on a project that needs a non-tactile button switch. mainly because i am rebuilding the shell and the original button design wont work anymore. there isnt enough space for a tactile switch so i need somthing that can see when i am touching the surface, but it needs to be a rather simple circuit since i dont have a very good access to ICs. if it helps any, the button has a metallic paint that is conductive, and there is a part beside it with the same paint. is there any kind of circuit i can build that allows me to make use of that metallic paint and use it like its a tact switch? any help is appreciated, i do have a 555, a couple L/R audio op amps and a NAND gate. thanks.

Question by zack247    |  last reply


4-wire touchscreen sensitivity

Hi team I posted this on the Arduino forum, and had a search through several electronics sites; perhaps there's also someone here who can suggest something. I have successfully hooked up my touchscreen to Max via Arduino; the code is fine, the circuit is fine and the Max patch is fine. I'm just wondering if it's possible to tweak the sensitivity of the entire circuit? When touching, one must press fairly firmly, otherwise any relaxation of touch, even with continued contact, results in a rapid fall to zero. In the Max patch, I'm using [sel 0]-> outR, after all the [serial] gubbins to help smooth some jitter. But is it possible to tweak the sensitivity, perhaps by using resistor values other than 10k. Hey, maybe even connect a variable resistor to allow realtime tweaks? Hmmm. Thanks Brendan

Topic by brendanmccloskey    |  last reply


Is there any way to make a touch sensitive switch using an OP Amp? Answered

I just saw an i'ble about making a touch sensitive switch. The problem was that it used 3 transistors, and I wondered if there was any way to make one using only an OP Amp. Thanks.

Question by arhodes18    |  last reply


Does anyone know of a cheap touch sensitive button?

Hi I am wanting to replace a keyboards buttons with touch responsive ones, and as I am in capable of any cuircitry work, I wonder if any one here knows a cheap and reliable one that I can buy in the uk, and put in place of the buttons. It can be either capacitive or resistive, although I really dont want to have to punch the characters to get a response. This is my first time posting here, and so I may have messed something up. -James

Question by therimmer96    |  last reply


gentle touch activated sound?

I have a little toy that makes noise when you squeeze it that I want to give as a Christmas present, but tiny little hands have trouble doing the squeezing properly, so I want to do a little surgery on it so that the sound activates with just a gentle touch instead.  Such as if you flick it, pet it, pick it up... that sort of thing.  I know when I was little, we had a doll that was supposed to make noises when played with, but it was so sensitive that it would go off from just the blow of our AC.  My problem is, I've no idea what parts I need to do this.  Can anybody help point me in the right direction?  And I only have about a three inches to work in, so it needs to be fairly small. Thanks.

Topic by aliasjanedoe    |  last reply


just bought a philips living colors (mini) led lamp model lcs3001/12. touch sensitive.

I would like to fix this lamp in my ceiling. when you touch the switch it lights on the lamp and when you rotate your finger on the switch it changes colors and when you keep pressing for a while it changes colors automatically . can the switch be modified so that i i can have all these features working at a reasonable height normally the height for a switch in a room.or why not a remote control?

Question by haq    |  last reply


Need 3A Touch Sensitive LED Dimmer circuit.LED voltage is 2.9-3.5,0.7-3A.?

Input should not more then 12volts it is better if circuit works on 5volts,but ON/OFF and dimming will be touch based.

Question by Faizan Hamayun    |  last reply


What's the best design for a touch sensor embedded in ~4 mm layer of silicone for prosthesis (Hand)?

I need the sensor to activate a motor, on and off after being touched. Preferably, with no IC.

Question by julanm    |  last reply


Touch sensors using lights and PVC?

Hmm... What would it be like to replace a physical switch with a touch sensitive switch. Instead of using a beam of light to detect a triggering, we use a illuminated transparent PVC plastic. This allows the interface to be more flushed into the wall. How it will work, is that by touching the transparent plastic, you allow a small amount of light to escape. The circuit will detect this drop in light level and trigger the switch. Pros: it looks cool, and is of lower maintenance than a physical switch. Its also cheaper then other options such as capacitive sensing Cons: it can have false readings due to the use of light as a sensing medium.

Topic by akimbo m    |  last reply


Multi touch switch for house lights

Hello Everyone, I have seen that we can make a touch sensitive switch using the TTP223 or TTP224 Module but most of the instructables show you using them with an Arduino and on small LEDs. I was thinking of using the same module to act as a substitute for the regular switch for lighting in our homes without an Arduino. However since I'm new to this, I don't know if this can be achieved or not. Additionally I have read in the documentation of the TTP223 that the module supports two types of operating modes one is a momentary switch and the other one is the toggle mode. But I haven't seen any instructions on how to achieve the toggle switch mode. Request your help in getting this to work the way I want them to work. Thanks

Question by harry4774    |  last reply


can i repair a cracked touch screen?

Its a odd size, so finding a replacement would be difficult, so i was wondering if its possible to repair the crack in the touch layer and make it work again? i doubt its possible but its worth a shot to ask i guess. and if i cant repair a cracked touch screen, can i cut one to te right size? its a pressure sensitive resistive touch screen.

Question by zack247    |  last reply


How do I make a 12 volt, touch sensitive momentary switch to start a car?

I would like to create a touch sensitive panel that will allow me, through contact, to activate the starter on a car. From what I have read on Instructables in the past, there are several ways to make 120v swtiches like this through the use of metal objects.  These have all been On-Off switches for things like lights or sound.  I would like to create a momentary switch that activates by touch in a 12v system.  If it is possible to do through a metallic contact point that already exists (part of the dash, or a trim bezel for example) that would be ideal.  All I really need is some kind of activation mechanism that transfers enough current to flip a relay when I touch it and that will stop when I remove my hand. Anyone have any ideas?

Question by ae86boy    |  last reply


Touch sensor connected to magnetic lock

Hi everybody, I would like to know if anyone can help me for this idea. Indeed, I would like to create a touch sensor which will be connected to a magnet system. To be more accurate, the idea involve the same process as a touch screen phone where one needs to do a pattern with 4 touch sensitive cases . The pattern would create and electrical impulse, which would unlock the box by detaching the magnet. So in a nutshell I will need a touch sensors pattern programing that would send an electrical impulse to detached the 2 magnets. I need this system so it could help me for my 1st creation. It needs to be very small to fit in a box of altoids candy for example. As I said, as a 1st creation I am completely lost for all theses "programmation" skills required. Thank you for your help. Beniver

Topic by Beniver    |  last reply


Bypassing touch sensor on led puck light

Hi everyone, I'm looking for some guidance on a current project. I bought a small Led puck light. The light has a very sensitive touch sensor on it, so much so you only have to hover near it to activate/deactivate the light. I need to bypass this, end goal being I want a SPST style on/off instead. I have never seen or modified a touch sensor before, so looking for anyone that had done this for any reason. The light is DC powered, 4.5V.

Question by Labbe1980    |  last reply


How to rig a capacitive touch to a usb keyboard (or gamepad)?

I need to make a touch sensitive (capacitive) button that triggers a key. I got a capacitive demo board from qprox that should be fine...I touch it and I can hook it up to an LED that gets lit. But if I try to put the wires from a button on a gamepad to the out of the demo board, the button is constantly in the "Down" state. I think I remember reading somewhere about a polarity reverser or something so that it reverses the On and Off state, but not sure what I need. Also, the demo board is powered via a small watch battery which is perhaps conflicting with the power from the USB? I'm not quite sure the best way to do this. I think I can power the demo board using the USB power rather than the battery. I also would like some advice on creating the Capacitor to a 3" button surface are that goes through 1/4" glass. I've got a resistor that upped the Qs so that it works through glass, but not sure how to make it fit to a desired "button" shape.

Question by superjames    |  last reply


Need arduino sensor advice! - Inductive touch vs. reed vs. touch sensative

Hi everyone - I am trying to make an elevator for my daughter's doll house - it is all set on a stepper motor and arduino - but I need a way for it to know when it has reached the bottom floor. Also, for reasons too strange to go into here though, I need it stop exactly when the elevator hits the ground floor.I am hoping the simpler the solution the better...a reed switch with a magnet on the bottom of the elevator? or a Pressure sensitive resistor? Or a push button that is really sensitive?Any suggestions would be much appreciated.THANKS!

Question by jpalay    |  last reply


Arduino capacitive touch sensor help

So I have been messing around with the Arduino Capsense library with the immensely helpful guide; https://www.instructables.com/id/How-To-Use-Touch-Sensors-With-Arduino/  (many thanks to DangerousTim!)   using the code provided, i managed to get a relay to operate with a sensor.  It worked great and I was able to adjust the distance and sensitivity.  But when i tried adding another sensor and relay, it stopped working.  I've been trying to isolate the problem for a while now and have gotten nowhere.  I'm hoping someone can help me, here's the original code for the single sensor and relay; #include #include                                           //change '42' to any desired pin... long time = 0; int state = HIGH; boolean yes; boolean previous = false; int debounce = 200; CapacitiveSensor   cs_4_2 = CapacitiveSensor(4,2);  // To add more sensors... //CapacitiveSensor   cs_4_6 = CapacitiveSensor(4,6);        // 10M resistor between pins 4 & 6, pin 6 is sensor pin, add a wire and or foil //CapacitiveSensor   cs_4_8 = CapacitiveSensor(4,8);        // 10M resistor between pins 4 & 8, pin 8 is sensor pin, add a wire and or foil void setup()                    {    cs_4_2.set_CS_AutocaL_Millis(0xFFFFFFFF);    pinMode(13, OUTPUT);   } void loop()                    {     long total1 =  cs_4_2.capacitiveSensor(30);            if (total1 > 60){yes = true;}     else {yes = false;}            // to toggle the state of state         if(yes == true && previous  == false && millis() - time>debounce){              if(state == LOW){          state = HIGH; }     else state = LOW;     time = millis();     }                     digitalWrite(13, state);            previous = yes;                 delay(10); } and here's the code for the two sensors and relays #include int led = 13;     int led2 = 12;    long time = 0; int state = HIGH; long time2 = 0; int state2 = HIGH; boolean yes; boolean previous = false; boolean yes2; boolean previous2 = false; int debounce = 200; CapacitiveSensor   cs_4_2 = CapacitiveSensor(4,2);        // 10M resistor between pins 4 & 2, pin 2 is sensor pin, add a wire and or foil if desired CapacitiveSensor   cs_5_7 = CapacitiveSensor(4,6);        void setup()                    {    cs_4_2.set_CS_AutocaL_Millis(0xFFFFFFFF);    cs_5_7.set_CS_AutocaL_Millis(0xFFFFFFFF);  //Calibrate the sensor...    pinMode(led, OUTPUT);    pinMode(led2, OUTPUT); } void loop()                    {     int total1 =  cs_4_2.capacitiveSensor(30);     Serial.println(total1);     int total2 =  cs_5_7.capacitiveSensor(30);                     if (total1 > 60){yes = true;}     else {yes = false;}    if (total2 > 60){yes2 = true;}     else {yes2 = false;}           // to toggle the state of state     if(yes == true && previous  == false && millis() - time>debounce){                    if(state == LOW){          state = HIGH;        }        else          state = LOW;          time = millis();      }                          if(yes2 == true && previous2  == false && millis() - time2>debounce){                   if(state2 == LOW){          state2 = HIGH;        }        else          state2 = LOW;            time2 = millis();            }                 digitalWrite(led, state);       previous = yes;       digitalWrite(led2, state2);       previous2 = yes2;                  delay(10); } Any suggestions are always helpful.

Topic by dudes    |  last reply


(beginner) how to wire up a small section of EL wire to a lithium cell battery? + touch sensitive?

Ive never worked with el wire before but ive heard its not too complicated for a beginner.  ok so i know what i want, but have no idea how to do it. basically i want to have a small section of 1.3mm EL wire, about 30cm long or less. the driver would have to be very small as its going to be in a thin metal case, and therefore the battery would have to be small to fit, (which is why i would want flat lithium batteries rather than aaa). also, if possible, i would like the el wire to be turned on only when you touch the metal case (like a touch sensitive lamp), so when you're not touching it its not on.  i havent seen any off the shelf drivers that are small enough and/ or have small enough batteries so figured i would have to make it myself. i don't know how, which is why im here looking for some help... anyone with any advice on how to do this would be great 

Question by scott08    |  last reply


Tablet PC From Netbook? Answered

Hello Everyone :) I'm new to this community, though I'm not new to DIY projects. I hope somebody can help me out, I need some help with a proposed project of mine.  I have an old Acer Aspire one 751h and it's an 11.6 inch netbook, LED screen, and I'm willing to tear it down to make a windows tablet. I know I need a touch screen kit, but I need help choosing one, I don't mind resistive ( I know it's very hard to find a multi touch 11.6 inch touch screen kit) In fact, I would say I would prefer ressistive as It's cheaper. One more thing, is it possible to use a larger touchscreen on a smaller screen and then calibrate it? as long as it's the same aspect ratio? For the tablet case/ body, inverting the screen and using the original Acer aspire one 751h case isn't hard, but if it's possible to use perspex or a material like that ( no carbon fibre please) I would like a few pointers. I don't mind the tablet having a rectangular feel/ look, as long as it's easy and practical to build. I also have an old  8x6 inch graphics tablet with 1024 levels of sensitivity, is there any way I can use this along with the touchsreen for input? Like behind the screen.  The netbook runs Full HD content and windows 7 fine and has a 16:9 aspect ratio screen, one of the reasons I'm keen on the project . Thanks a lot ! :) 

Question by Nimer11    |  last reply


Feaure Request - moving images

When dealing with images, I cannot do the "drag to reorder" stuff on a touch-sensitive device, such as my phone or tablet*. Since the vast majority of my time online is via one of these two devices, not being able to click & drag images around is a major PITA, having to start up the desk top computer just to move a thumbnail a few pixels... Bearing in mind that most UK internet browsing is done via touch-sensitive devices, and the UK is this site's second-biggest user-base, it would seem sensible to address this issue. *both running Android

Topic by Kiteman    |  last reply


The use of soft circuits in robotics

Sheets of touch sensitive material seem perfect for giving robots a "skin" of sorts. This could easily allow for something along the lines of a robot pet that can tell when it is being petted. It would also be useful for robot grippers, to allow the robot to hold on without applying too much force. With a layer of durable plastic between the circuit and the cloth, the robot could be made water resistant. Not really sure where else to take this, but I think touch sensitive, water proof skin (and also whiskers) would go a long way to making better robot dogs and cats, and probably other kinds of robots.

Topic by MDude  


Smart Phone face glass replacement kit

What this world really needs is a temperature controlled face glass removal and replacement kit. Most of my working friends that have Smart Phones have broken or shattered touch screens. A quick search for touch screen replacement provide a bunch of Youtube videos and DIY kits for under $20. All the vids and kits say that too much, or too little heat will destroy the actual touch sensitive surface under the glass. The only source of heat they use is a blow dryer. I already break enough stuff that is not technology that I do not understand. My brain says a flat aluminum plate with suction holes to hold it in place and act as a handle during removal. Temperature controlled that can be set to the exact temperature for easy removal and replacement without applying too much pressure on the inner touch sensitive part. The online kits offer plastic wedges for popping the glass loose when/if you get the right temperature. An exact temperature face glass removal kit with the necessary wedges or possible strong monofilament fishing line to ease the glass away from the base. Everything I mentioned is beyond my knowledge and/or skills, but DIY Instructables or even kits to help out friends in need would be awesome and probably a good source of income for the entrepreneur.

Topic by GrumpyOldGoat  


Awesome modifications that would allow a person with severe electromagnetic radiation sensitivity to use a computer?

Here's a challenge: My friend cannot be in the same room as anything emitting electromagnetic radiation, so no computer or phone, but she longs to be in touch with people. She's now limited in contact to her husband and people who come to visit, but is about to move away from the city where we live to a small town with cleaner air (she's also struggling with multiple chemical sensitivity), so will be moving 2.5 hours away from most of her friends. I can imagine some awesome solution that would transition from mechanical technology to digital signals (ie. typewriter keyboard connected to computer in the other room), but I'm not the hacker to do it. Is there anything existing out there? This seems like it would be right up the steampunk folks' alley. Any good ideas? Sources for solutions? Any thoughts that anybody has would be greatly appreciated, and probably put to use. Figuring this out will add significantly to my friend's quality of life...!

Question    |  last reply


Awesome modifications that would allow a person with severe electromagnetic radiation sensitivity to use a computer?

This is more of a challenge than a question: ! My friend cannot be in the same room as anything emitting electromagnetic radiation -- no computer or phone -- but she longs to be in touch with people. She's now limited in contact to her husband and people who come to visit, but is about to move away from the city where we live to a small town with cleaner air (she's also struggling with multiple chemical sensitivity), so will be moving 2.5 hours away from most of her friends. I can imagine some awesome solution that would transition from mechanical technology to digital signals (ie. typewriter keyboard connected to computer in the other room), but I'm not the hacker to do it. Is there anything existing out there? This seems like it would be right up the steampunk folks' alley. Any good ideas? Sources for solutions? Any thoughts that you might offer will be greatly appreciated, and probably put to use. Figuring this out will add significantly to my friend's quality of life...!

Question    |  last reply


Turn a Monitor into a Drawing Tablet and mount it in desk

I'm rebuilding my entire basement office this summer and I've had an idea for a really cool tablet substitute.  I'd love to be able to mount a monitor in my desk and get an overlay for it to allow for me to use a tablet pen on it.  I have a vague idea of how I want to do it, but I'm hoping that you guys can help me come up with a sturdy way of mounting it in the desk and where I can get an overlay that isn't touch sensitive (this is going to have my hands on it when I'm typing, then when I need the tablet function, I'll move my keyboard over), but responds to a pen. Thanks for helping!

Topic by daboys    |  last reply


Sometimes I accidently 'flip' On-Off-On the power switch of my TFT LCD, could this cause any harm to the LCD's circuits? Answered

Or the appliance has some protection against this? (my worry is that such on-off flipping cause some surge or arch). It's said that in modern PC LCD monitors like mine (where the power switch is just a touch sensitive area of the front bevel) most of the actual circuitry remains on all the time so I have nothing to worry about, is that correct?

Question by allymcbeal    |  last reply


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  


Hp tablet display? Touchscreen monitor? Help!

As i was looking on ebay for a lcd display for a computer mod i found out that the there's a bunch of displays taken apart from old/broken hp tablet's. I've been thinking for a while know to set up a computer with a touch screen display to put in my ikea expedit bookcase (http://www.ikea.com/ca/en/catalog/products/10103088)I was planning on hiding the computer behind the screen and so on. So my question is can you make an Hp tablet display working with a desktop computer?If yes how can you?If not, what would you suggest in terms of touch sensitive display? Is it cheaper to diy (i know there are some kits over the internet) i will mainly use this computer to control music, watch movies from my bed (it's right next to it) and controling the light of my room. nothing much, nothing fancy!Thanks!?

Question by bluepills    |  last reply


Where can I buy thin brushed aluminium plates - think Mac trackpad

Hi, I'm trying to source brushed aluminium plates as well as textured brass or copper or magnesium plates, black (aluminium?) plates and 1-2mm thin opaque coloured glass plates - something similar to the glass on a smart phone. I'm looking for materials that I can cut to size or that come in approximate size of 80-120 x 80-120mm x 1mm. This is for use with touch sensitive projects and I'm looking for something that has a premium look and feel. Any tips or pointers would be really helpful.

Question by shauneff  


debranding

Anyone here ever get samples from maxim? Recently they now send them in cool little boxes that says maxim and attention electrostatic sensitive devices. I want to get rid of the maxim logo and just keep the static warning so that I can have a cool clear project box that tells people that if they open it that they should be careful because of the static electricity. The text feels slightly raised to the touch. I do NOT want to scratch up the box. BTW, small question, anyone ever have trouble adding notes to pictures? Whenever I create an instructable I have to add it in preview mode, but once in a while I can do it in edit mode. For example I had to post this topic and edit it to add notes to the picture.

Topic by guyfrom7up    |  last reply


Is there a DIY Arduino or Raspberry Pi Coordinate Measuring Machine published in "Instructables"? Answered

I wish to build a coordinate machine using x-y-z movements controlled by a microprocessor that can measure a scale model by touch of a probe or by reflection of a microwave.  The base machine would handle an envelope of 8" x 8" x 8" and use one or a combination of the best of the CNC laser cutters, 3D printers, etc.  Whether the microwave non-contact, crash avoidance, technology is sensitive enough would be interesting.  A couple of contact probe articles have been published and are the basis of commercial "Coordinate Measuring Machines" (CMM) and would be interesting if they are sensitive enough as a DIY project.  The end result would be to write a file with the x-y-z coordinates of say a model car, and knowing the scale of the model, one could multiply the data by the scale factor and have "Full Scale" coordinates of the cars' surface for building a kit car body.  A 1939 version of this project is on display at the CORD/AUBURN  Museum in Auburn, Indiana.  A 1939 Cord in 1:10 scale is shown as a clay model with half of the car finished.  The coordinate machine's purpose was to measure the right hand side completed in clay and produce a finished 1:10 scale model by finishing the left hand side symmetrically from data obtained from the opposite side. While interesting, it is a manual machine.  I am seeking an electronic, programmable, DIY version.

Question by chestef    |  last reply


Circuit not working...

So I made this circuit (http://niotronic.blogspot.mx/2013/07/clap-switch-with-ic741-and-cd4017.html) but it doesn't seem to be working. When I connect it to power the relay is in on position and the led is off. No matter how many times i clap it doesn't seem to change state. Can anyone please tell me what i could've done wrong? Note: when i touch the bottom of the circuit ( on some pins between 1 and 4 of ic 741) it seems to change state. Help would be greatly appreciated thanks. (This video: https://www.youtube.com/watch?v=zFu0pBvpmIk shows this circuit in action. It seems that he used an LED instead of a relay. I also found similar circuits here: http://www.electroschematics.com/5643/sensitive-clap-switch/    http://www.homemade-circuits.com/2011/12/make-simple-electronic-clap-switch.html     http://circuitdiagramcentre.blogspot.com/2011/12/make-simple-electronic-clap-switch.html)

Question by SA-DIY    |  last reply


High-current, electronic sword-fighting, fancy drink pouring, and more @ Makers Local 256 Build Night!

Last weekend, Makers Local held a Build Night event, sponsored by the Instructables team! Armed with Bare Conductive paint pens and a couple of pizzas, we got to making! The first thing we noticed was that the conductive paint pens were only rated to 12VDC. What happens if we took that higher? (More info can be found here)   One of our members though it would be neat to use the conductive paint to create an electronic sword-fighting game! It turned out really well, and his Instructables write-up was really well-made: check it out here! Another member designed a system to dispense soda in style! He wrote up an awesome Instructable about his system here. One final project started as an attempt to make a touch-sensitive piano using the conductive paint, but the piano ended up using aluminum foil due to some inconsistencies in the resistivity of the paint. It still turned out pretty neat! Below are some pictures from the event! Thanks to Instructables and all who attended!

Topic by tylercrumpton    |  last reply


how to "ROOT" samsung intercept for sprint Answered

1)     how do i "ROOT" my samsung intercept from sprint? i found a few apps that are amazing     ("wifi tethering", "set CPU", "root explorer" "root manager"), but  i need superuser (root)     access. can anyone explain what "ROOT" is and how to get it?     (update) I'm starting to understand "ROOT" is.) 2)      and what is  "KERNAL" 3)      i want to install flash player 10.1 on my intercept from sprint, but after i installed, it was the      same. do i have to root my phone? 4)     i cant find any good info on HOW to root the SPRINT INTERCEPT phone. 5)     which is better, the samsung moment, or the samsung intercept? 6)     is this the ONLY phone the SUCKS in EVERY SENSE (bad screen re;  unable to root;  no     multi-touch; android 2.1;  no flash support;  non-sensitive capacitive buttons;       unresponsive;  slow) 7)     (update), my phone updated today and now is running 2.2, froyo. now the capacitive      buttons work the way there supposed too. but i still cant i update flash.  and is rooting      gonna be possible (or at lest possible)? (re update 2011 Jan. 11) my phone still has no multi-touch (except for the "pinch to zoom" like before.but only on the browser); no flash player; and the hardware still SUCKS (bad res LCD screen, "EV-rev O" radio, ABSOLUTELY TERRIBLE built in memory) some reason this phone after the 2.2 update, is a LOT slower and more unresponsive then before. 8) does anyone know how to root this phone and flash it with some better-suited software for this model phone (m910)

Question by -max-    |  last reply


[newsletter] 17-Foot Gandhi, BBQ Tips, Sweet Tea...

July 10, 2008 Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup1","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); } Welcome back! The Robot Contest ends this weekend! Make the most of that extension we gave you, add some finishing touches, enter your Instructable by Sunday night! The Horny Toad Invent-a-Sport Contest starts today! Win lots of cool clothes from Horny Toad by sharing your own original sport or game.The winners from the BBQ PDQ Contest have been announced. See who won!There's now an Instructables page on Facebook. Become a fan, post on the wall, and even upload some pictures or videos. Four Square Chair by wholman RC truck robot conversion by OracsRevenge Best FREE Things to do at Disney World by woofboy111 BBQ: Fall Off the Bone Beef Ribs by Mr. Rig It Smashed Mutant Octopus book "shelf" by Sunbanks Night Stand Charging Station Lamp by drocko BBQ Hero - slow cooking, smoking, and sauce bars by dave spencer DIY Force Sensitive Resistor (FSR) by kylemcdonald Southern-style Sweet Tea for Summertime by reno_dakota How to Climb a Tree (with prussiks!) by stasterisk Glass Dining Room Table "Etching" by Code128 Bumcamping in Japan by TimAnderson Win cool clothes from Horny Toad! Get published in the Instructables book! See who won! Build a thruster for a submersible or ROV by Kajnjaps Pulled Pork by Ticking-Timebomb A New Desk... From A Dresser by MercuryCrest 17-Foot Tall Cardboard Gandhi by delappe Now go make something awesome, and I'll see you next week! - Eric Sign-up for this newsletter: function openSubscribePopUp(src){ var emailValidate = /\w{1,}[@][\w\-]{1,}([.]([\w\-]{1,})){1,3}$/ if(emailValidate.test(src.value) == false){ alert("Please enter correct email"); return; } window.open("/newsletter/newslettersignup?email=" + src.value,"newslettersignup2","status=yes,scrollbars=yes,resizable=yes,width=420,height=250"); }

Topic by fungus amungus    |  last reply


Need help with capacitive button cover for Xbox One.

So I hate capacative buttons.  I work for Microsoft as a game dev and we all have Xbox Ones.  They have the worlds most sensitive capacative power button.  We regularly accidentally turn our boxes off with a slight brush of the hand, bumping a coffee cup that was too close or brushing a controller cord against it. I have been trying to build a button cover.  One that will still turn it on and off with an actual press rather than a light glance of the hand.  I have had no luck so far and have been learning about conductive surfaces along the way. The original plan was to use conductive rubber and some scotch double sided tape.  The tape I am using is a clear rubber and has a mm or so of thickness to it.  I bought some gasket punches and punched out a button about the size of the capacitive area of the Xbox One power button, around an inch, and then another in the tape.  I punched out a smaller center hole in the tape to turn it into a washer, and stuck it onto the button and stuck it on the Xbox.  In theory you have to press the button in to make contact with the capacative button to turn on or off the Xbox.  But alas, it still turned on with the slightest of brush still.  I stacked the tape up to four times.  I tried foam mounting tape.  Alternated tapes, stuck electrical tape inbetween, and still the same thing.   On their own the tapes wouldn't turn on the button when tapping them to, but perhaps there was enough distance when touching holding it length-wise rather than flat against. I figure the electricity must be flowing over the non conductive surface and still going to the button.  In the office with all the EMF I seem to be averaging around 3v to the touch.  I have a grounding mat at my desk that when I make contact with takes me under a volt, to around 0.3v but that doesn't make a difference. So I figured I needed a bigger insulator.   I got some larger machine washers where the hole seemed larger than the capacative area, punched another larger button out of the conductive rubber and glued it over the hole.  Using double sided scotch tape I stuck it to the Xbox.  The same thing as before happened.   Even touching the rubber only was enough to turn it on with a light bump.   I figured I needed a ground.  I tried removing the grounding cord from my mat and holding it against the rubber of the button.   It seems slightly less responsive but still turned on easily.   I tried running copper tape along the side of the Xbox to the button to see if that would draw away the charge, but it did not. Taking my rubber washers I used my multimeter to see if they were conductive at all.  They did not seem to be.  Setting it to measure the volts in ac they are picking up about 0.03v, but so is just the air.  But the rubber rings will turn on the Xbox when I hold them though the thick double sided tape will not. Does anybody have any ideas on how to get this to work or what I am doing wrong?  I will admit I don't know a ton about this stuff.  But I don't understand how these materials can turn the button on.

Topic by technicallyartistic    |  last reply


How can I make a water level indicator panel for an RV fresh water tank?

I'm rehabbing an RV.    It has a 100 gallon fresh water tank made out of plastic (polyethylene). The tank has four built in sensors on the side of it, 0%, 25%, 50%, 75%, I assume these sensors are just a bolt sticking through the side into the water. How can I make a simple indicator panel which will light up an LED for 25%, 50%, and 75%? I doubt I'd just be able to use the electrical conductivity between the 0% sensor and the other three, as the electrical resistance would be too high to send any usable connection through the water, am I correct? But maybe something based on capacitance?   Anyone know how to build something like that?   My skills are too rusty to think that through. Maybe I could cannibalize the sensor out of one of those touch sensitive table lamps and use it as the basis for my indicator panel? I'd prefer not to use an arduino or pi for this, I need something incredibly simple and robust.   I realize those would do the job but I need the quick and dirty solution. Thanks in advance for your help. EDIT:   Here is a webpage that talks in depth about the standard tank monitors and how to upgrade it with an Arduino.   Unfortunately, this seems incredibly over engineered for this task and I don't have the liberty of spending the time to do this, as I am working with a tight deadline.  But it does discuss the resistor network which was originally used with the sensors on the tank.   Since the original display panel on mine was too damaged to save, I thought it wouldn't be too hard to rig up something simple to replace it.  http://www.thorforums.com/forums/f27/diy-capacitive-tank-sensor-1177-2.html

Question by JimTheSoundman    |  last reply


Digitizer problems after screen replacement on iPad 4

My wife's 1 year old plus iPad (3 or 4 I think?) suffered a minor accident (cat knocked it over) and the Lighting adapter broke inside the receptacle. Since it was impossible to retrieve the piece of connector inside the plug I decided to take the iPad apart following several online tutorials (I am usually pretty handy) While I was trying to open the iPad I broke the screen , so once I was done I ordered both the Lighting Connector receptacle and a new screen. After I received the new parts, I was able to reassemble the iPad without too many issues, once again following instructions in a step by step tutorial and a couple of videos. The finished job Looked great. However I soon discovered I had a few serious issues: 1) Some areas of the screen do not register touch at all. I poke and poke and no response. This is like a 1" strip on the long side of the screen. Everywhere else, such as the opposite side of the screen, it works fine or it is actually too sensitive. 2) Siri keeps coming on. Even with the ipad asleep sitting under the bed, siri will turn on and off by itself. Quite annoying during the night (I had to turn the iPad completely off). 3) The keyboard works terrible with the keys in the "dead zone" not responding and those in the "live zone" typing 3 or 4 characters per key "press" I really don't want to open the iPad again until I know what I did wrong and how to do it right next time. Could I have placed the new screen too close on one side and not enough on the other? What else could have caused this? In all the tutorials I have read before I attempted this repair I took note of all the possible shortcomings, but I did not read anything about a behavior like the one I am experiencing. I'd appreciate any help I can get. Thank you.

Topic by conticreative    |  last reply


Throwies reimagined - Really I did tried :) :| :/

Seeing other forms of making interactive throwies, eg using microchips impresses me.However i think it is important that we try parts of the B.E.A.M philosophyhttp://en.wikipedia.org/wiki/BEAM_roboticsNamely keeping things simple, and avoiding the use of microprocessor.The component of a interactive throwie is that it has1. Power storage2. Trigger3. Circuit4. LED5. (optional) Power collection of radiant energy.I like to see more suggestion on ways we can address each issues.But to kick start the issue, can you see if my idea is feasible.essentially for my prototype not-yet throwie, I used a circuit from http://unconventional-airsoft.com/2003/11/16/momentary-fan-switch/#more-21to create a throwie that on sensing motion, doesn't flicker but turns on for a while.By ensuring that i use few and simple componants, i hope to keep cost per throwing down.Unfortunately my problem is that using a resistor to keep the capacitor from draining too fast from the base, actually decreases the voltage drop to an unacceptable level at the led.On my end it is unsolvable for the moment. Maybe you can work out how to make a cheap throwie, that can still do these functions or more.Any ideas how to solve this?Other Ideas for throwies1.Open and attach a switch to a barometer, to have a air presser passive trigger.2. A leave shaped pad with two conductors that do not touch, to act as rain sensors. (Resistance increase when leaf dries)3. Is sensitive to infrared radiation from side, so that the throwie is trigger-able by other activated throwies. (As well infrared devices)4. Has a short loop of coil to recharged capacitors, by outside induction.5. If activated rarely, uses a tiny single solar cell to charge capacitor.6. Has a hook to be easily collected for recycling. (Using a simple loop of wire on a pole [Like a dog catcher pole] )7. A single thermistors in series with led.8. A tricolour LED, and a Two light resistor. One LDR acts to sense if it is day an night, if night a low power light is activated. Only when an object strays near, and reflect light into another LDR, does the throwie get triggered at all.9. A throwie triggered by vibration.10. A throwie that responds to radio waves.

Topic by akimbo m    |  last reply


Electrical schematic help/wiring + arduino programming

Hello,first time user here, so i would like to just apologize for the wall of text that's coming up.Im trying to build this little enclosure here https://www.instructables.com/id/Touch-sensitive-... and i have a hard time understanding the basics of the electronic schematic thats invovled, when he shows how to build it. Nor do i truly understand what components are in it, hence why i cannot determine the price of this build (based on electronics). So i was wondering if anyone could lable one component by one for me, aswell as how to connect them all together? so that i could calculate the pricing and see how much it would actually cost. Seccond thing is that i wanted to change it up a bit, and use neopixels, or ws2812b led strips instead with a teensy 3.2 and fastled library code, for that fiery effect. Thought that might look really cool. However im concerned with the power draw of these ws2812b led strips. Getting information from adafruit: 60mah per led at maximum brightness, but thats eye blinding, so a 20mah per led is more logical, as someone with neopixels wouldnt be running full white anyways, and more colorful setup, or patterns. Im able to get 144 led/m quite cheap, but then the power draw of just 1m is a whopping 8.64 A. Which is starting to sound pretty dangerous at 5v. But then again, im not buying neopixels to run at full white brightness, i want the patterns. Im wondering if there is any possibilites to make a admin command or a priority list or something to lower the brightness of the strip entirely without messing up the code? i know regular leds have ir remotes to dim the light. I mainly just want the red flame effect, which is only 20mah at max brightness and a peacefull 2.88 A, but i also want white light + i want the safety of knowing i can supply the strip of the power it needs, just incase. The video with the code is underneath: (code in video desc)and i know 144 leds/m is probably overkill, but then again, im getting them dirt cheap, + it would give off a much better fiery effect than a 60 leds/m or even a 30 leds/m thanks in advance for any replies, and sorry for my wall of text. :)

Topic by karminderb  


ARK, hologram community

Hello everyone ! I'm building a project, called "the ARK" : It is a holographic pyramid with a new type of interface who gives life to your projects. Holography has always been fascinating: you see your 3D, you work on it, and you can create directly with your hands. Today this type of holography is really expensive compared to the simplicity of its fabrication process. I want to give the possibility to use it for everyone. The Ark has a software suite. Your drawings, films, models, all in holograms and in 3D GPS augmented reality view, directly on your smartphone to walk in your creations. And more:  with the sensitive gloves it will be like feeling the 3D under your fingers. Films, 3D, drawings, you will be able to touch and feel all of it. THE STORY : This project started two years ago with some research in my architecture school; I created the first holographic reflector “Ark-mini” for the students of our school. This creation is now in open-source (for more information see HERE, you can translate the page) For this new project, I want to create the more intuitive, complete holographic software: you will just need an USB and HDMI connection and let’s go! Order, and the ARK will follow it with his speech recognition menu. I will present 3 softwares for the Ark:     The ARK-creator for your 3D creations     The ARK-movie: what you film is what you see… in holograms.     The ARK-net to send directly in augmented reality your project, to visit it with you tablet or smartphone. This project is a personal initiative that I have been developing since last year, thanks to the help of some forums and Internet’s people who follow me. Today I propose you to make this project a reality. The first Ark serie will be presented in Paris, at the “Futur-en-Seine” numeric convention in the “Gaité Lyrique” on 13th june, and at the end of june for my Diploma. The thing is, i want to build this project with a creative commons license (open-source), and i'm trying to build a community. For the moment, i make a simple design for the ARK, i will have six month to build the software. We can (i hope so), in the future, create something like a "Jarvis" (who do not dream about this :) ). For the moment, i'm finishing the file with the design and the prequel of the software (openframeworks). But you can register in the forum and i'will send you a newsletter when it will be done. I hope we can make something beautifull, and, it is not just an idea:  i am doing it (but i need you)! here the LINK of the project here the FORUM / COMMUNITY

Topic by vmarsat    |  last reply