Fake devices

I just took apart a cheap "solar" calculator that was actually powered by a small coin cell. The "Solar Panel" was colored cellophane. You ever find something like this?

Posted by Rotten194 9 years ago  |  last reply 9 years ago


PCI Device Tutorial

I can't seem to find any tutorials for creating a PCI card.I was thinking of something like a simpler version of this.Anyone here made an PCI devices? Or any links?Thanks.

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


Building a communication device

Hey guys - I was wondering if anyone could point me to any instructables or other how-to's that teach you how to build a device that can communicate over the air over a given frequency? I've searched around a bunch but I can't really find anything. (I'm also completely stupid when it comes to this kind of stuff.)

Posted by holyjaw 11 years ago  |  last reply 4 years ago


Wireless texting device

Hi everyone, I'm curious if anyone has ever seen or heard of a wireless texting device that would be suitable for older folks to use. Basically, I'm thinking a laptop-sized screen with a keyboard (basic functionality) that could stay on at home to receive/send texts for those folks (especially older folks) who cannot or will not use a smartphone or regular laptop.  Some sort of audible signal that as text has been received would be good too.  Thanks in advance for any and all help. ~J

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


how to make this device?

Hi, i want to make a device, please tell me how... there is something that looks like a tv remote . it has 9 buttons on it. And there are 9 light bulbs. when i press each button, each of the 9 light bulbs should light up. for example, when i press button 1, light bulb 1 should light up. when i press button 2 , bulb 2 should light up, button 3 turns on bulb 3, and so on. this needs to be wireless. i have done some research and i have found that i need something called an RF transmitter and RF receiver. I just need some hints on how to make this device. i hope it is clear what i want , english is not my first language, if its not clear let me know and i will clarify.

Posted by create90212 10 years ago  |  last reply 10 years ago


Need tracking device...

I have a horrible problem with keeping cirtain objects of mine within my grasp. As such, I was wondering if there was anything I could put together or attain that may help me keep track of these things. I have no knowledge of these things, so forgive me if what ii'm asking for sounds far-fetched. I'm looking for something like a small thing little beacon that could be attached to something like a shoe or book that sends out a some form of radio waves on a constant frequency, that can be picked up by the receiver that essentially lets you know how close you are by the sound it makes, whether it be through beeps or noise level. I believe things like that are out there, but i'm wondering i';f I can do anything on a really really small level, like the size of a watch battery with a piece of adhiesive on the back. Any kind of help, even just to let me no that its not possible or whatever, would be great. Thanks in advance.

Posted by poken1151 11 years ago  |  last reply 11 years ago


Planning to make a electrical device ?

Hi, basically I am planning to make a device,  like a elongating stick/rod. Based on a meter (scale) it should keep elongating, when the current is supplied. For instance say we have  rod of 3 feet  in length (3 pieces).  The rod will be in the device, when I supply the power to the device, it should protrude to 1 feet and then again for more power another 1 more feet and more power another one more feet. Can some one pls help. Thanks.

Asked by ganeshm69 7 years ago  |  last reply 7 years ago


How do you make an Electro Magnetic Pulse Device? Answered

I would like to make and EMP device to blow an RFID. I understand that it is a capacitor and a coil.  And that you charge the capacitor up and then discharge it through the coil.  But what size and voltage should the capacitor be, and at what what voltage do you charge it and how thick does the wire need to be? Is it all about the voltage of the cap (12 volt or 400 volt)  or is it more about the size of the cap? Thanks

Asked by Aussie14 7 years ago  |  last reply 6 years ago



any device that controlled by computer?

Will you help me to find a device that can manipulated by the computer? thank you

Asked by asiren 8 years ago  |  last reply 5 years ago


Milling Device

Please comment or make an Instructable on how i can make a clamp-on mill attachment for the drill press below?

Posted by m5industriesinc 8 years ago  |  last reply 8 years ago


how can i make a cheap and easy bugging device which is small and easy to hide? Answered

I want to make a battery operated, small bugging device that is easy to hide and can record or transmit sound to a listening device....just for when i'm...bored...just for....fun....

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


Wearable Video Device

I have had this concept of building a wearable video device that captures moments we usually misses within a few minutes. And I am looking for someone to help me to build a prototype. Or point me to a direction how I can build it myself... Any help will help, If you are interested, please let me know.

Posted by luklau88 3 years ago  |  last reply 3 years ago


Need help on wearable device

I have had this concept of building a wearable video device that captures moments we usually misses within a few minutes. And I am looking for someone to help me to build a prototype. Or point me to a direction how I can build it myself... Any help will help, If you are interested, please let me know.

Posted by luklau88 3 years ago  |  last reply 3 years ago


Can anyone tell me what this device uses?

Hi everyone, Im really stuck at the moment. I've been racking my brains trying to figure out what sensor is used in this device and would love if someone could help me! The device is this:  http://www.ebay.ie/itm/NOVELTY-ELECTRONIC-PERSONAL-PROXIMITY-REMINDER-ALARM-/150412364558?pt=UK_Safety_Alarms&hash;=item2305468b0e#ht_964wt_952 I've bought one but cannot for the life of me figure out what exact sensor it uses. Thanks in advanced, Andrew.

Posted by Axial-Andrew 6 years ago  |  last reply 6 years ago


Can anyone direct me to a site or simplify the steps in making a micro tracking device?

Its a big ask but i need help on making a very small tracking device. This is just an idea atm but something the width of a pencil, or even smaller than that ?

Asked by AllaW1 2 years ago  |  last reply 2 years ago


Antistatic solution?

We are running a vinyl product on our flexo printing press.  I need to build an antistatic device to keep my operators from getting shocked and to keep our product from sticking together. Any suggestions? Thanks in advance,

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


Looking for directions for a device made in electric shop class that would let the user shock himself.

I remember that it was mounted on a block of wood, and had a metal plate attached to one side with holes in it.  It used a D battery and a copper wire coil.  A rectangular piece of copper with a copper probe attached was held by the user.  You would try to pass the probe through the holes in the metal plate; if you touched the plate, you were shocked. Does anyone have directions for something like this?

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


paracord weaving?

I would like to know how to use 550 paracord to weave a ball at the end of the cord. basically making a billy jack club. thanks

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


How to make smart Distribution power box? Answered

Hello folks i am student of final year . I am doing a project in final year named as "Smart Distribution Power Box" . Its electronics and IOT based project . i just have an idea about it . but don't know how to start it what steps i follow to take it forward . Actutall i 'm trying to make the device something like TED Spyder here is the link of this device you can get idea from this link what i m trying to say .. (       https://www.youtube.com/watch?v=UKCsDD4is_Y      )    Its a smart home energy monitor .  first o have to measure phase voltages and currents , then have to calculate real ,reactive and apparent powers power factor,current voltages at rated load ,load varriations,  then i have to make a soft interface to show it in graphical and well as numerical forms on a smart device .  Please like to suggest something how i can move on and how i can make it. I will be very thankful to you if you help me :-)  Thanks 

Asked by MubeenS1 1 year ago  |  last reply 1 year ago


How To Create Frequency Specific Microcurrent?

Curious if some of the electronic gurus might have the answer to this. I am looking to build a two channel (A/B) microcurrent (allowing from 20 - 600 microamps) with selectable frequencies ranging from 3 to 970 Hz). This is based on a medical device that I'm looking to replicate. I've figured out some of this but again, considering the wealth of knowledge here I'm sure some would know the best way to build this. Oh yeah, I figure using a rechargeable battery which could be whatever voltage is best recommended. So what do you think???

Asked by pletchman 3 years ago  |  last reply 19 days ago


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.

Asked by Faizan Hamayun 7 years ago  |  last reply 7 years ago


how to build a G- Force measurer?

I recently seen on Tv where you built one of these and measured G-force on a rollercoaster ....got the end of it and don't what it was called. on diract Tv sat the 28th march 2009.

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


need simple innovative answer for conveying someone in standing position up and down 12 steps, 3ft wide.?

Live in 1st floor flat. partner housebound. cant use communal stairs. spine problem. stairlift not allowed due to h/s regulations for other residents. amove to ground floor offered but too much for her to move. evacuation chairs tried but jolting and sitting position terrible.device cant be a fixture.something put in place when used. thought of a motorized step raiser that goes up to height of next step and you then step on another flat raiser which goes up, and i bring the other one in front for the next step and so on. was told would cost a fortune. motorized car jacks take 2 mins to elevate - no good. housebound for a year. desparate situation. any helpful ideas like amotorized step device that goes down and up, would be a lifesaver and greatly appreciated. thanks.

Asked by 9 years ago  |  last reply 9 years ago


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.

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



Anyone have links to DIY electronic stimulation devices? Maybe a suggestion on what components'll be needed, etc.? Answered

I suffer from severe RLS and I'm always researching [experimenting on myself] ways to get relief without meds. I'd like to build a simple electronic stimulation device. If it works well (on the RLS), I may incorporate removable electrodes, pot, timer, lights, etc... All I need's a nudge in the right direction. Any information would be greatly appreciated. Thanks in advance.

Asked by Sovereignty 9 years ago  |  last reply 2 years ago


How to create a barcode Scanner device?

Please help.. i want to create a barcode scanner device (the actual device itself, not the program.).. can anyone help me?

Asked by vpuato 6 years ago  |  last reply 6 years ago


Can I capture the data from a device it's way to the display, after it has been delt with by the circuitry?

I am looking to hack a complex device, so let's start with something simple...I want to take a pulse oximeter that measures blood oxygen levels and pulse rate, and use this data with my arduino.  Is it possible to capture the data from the pins going to the display and use that? Any help would be appreciated, I don't even know where to start, except testing for voltage on pins and frying things.

Asked by anfractuosities 7 years ago  |  last reply 6 years ago


How to make small elec. shock device? Answered

I saw the the project of Plasmana but I have problem that from where the battery is to be connected, because I lost track while dismantling the camera. Also I doubt that one or the other component in my circuit is damaged and is not working, I have a multi-meter but I don't know how to check those components, so help me with these problems. Thank you.

Asked by Kunal Gehlot 3 years ago  |  last reply 3 years ago


playback sound system.

Hi , im new in this , i want some help. i have an amplifier , how do i attach a microphone with it to make it a play back device? like i speak in mic and the voice will come out loud from amplifier.

Posted by Syed MajidA 2 years ago  |  last reply 2 years ago


how to generate the 2.4 GHz frequency ?

I am designing the anti drone device which can jam the drone in operating condition and make it inoperable. but i am struct with the problem that how to generate the 2.4 GHz frequency using voltage controlled oscillator.

Asked by AbhinavD9 1 year ago  |  last reply 1 year ago


I will pay you to make my Idea!

So basically I want a very simple device which is just a little buzzer and either some kind of laser sensor or even bits of string. I want something that can be worn that makes a noise when the wear slips out of good posture. I am sure this could be easily done. All quotes will be received and considered.

Posted by moogle123 6 years ago  |  last reply 1 year ago


How to make a mini EMP deivice with capacitors?

Hey guys, I'm really trying hard to make a small EMP device so I can at least turn off a calculator or something. I have 4 capacitors in parallel , and four 9V batteries , but I can't figure out the wirei part, how do I wrap it, and what do I have to put inside of it? I would really appreciate your help...If you find some photos it would be awesome.

Asked by Drake140 6 years ago  |  last reply 6 years ago


want to make Clicker my self, with a piece of tin.but, dont knw the how to. be kind to guide

Hi mates, well, for the purpose of training my tiels, i want to get the clicker device. unfortunately it is not available in my area.but, i had experienced before few years.and know that, it is so simple to make ourself.but dont knw the proper procedures. be kind to help to make a clicker my self. and sure that, will get guided by some one here.coz, that much experts are here. thanking you in advance

Posted by shinojmahe 10 years ago  |  last reply 9 years ago


usb 5lb digital scale from stamps.com

Link to website stamps.com 5 lb scale model 510 hello might be the wrong place to ask this question but ... i have picked up a stamps.com usb digital scale from a garage sale ..... anyone have a instructable of what to do with it as far as software to use with it instead of the stamps.com software or dose anyone have any ideas what to do with it beside using it with the stamps.com software / thanks mike m?

Asked by modifiedsoul 8 years ago  |  last reply 5 months ago


Indoor invisible pet fence idea - need help

I need to keep a cat out of a room that has a 12 foot wide opening. I was wondering if a strand of wire or a coil of wire could be installed under the carpet across the 12 foot opening such that when the cat, wearing a collar fitted with a magnet came close, a current change would be created in the wire or coil and an alarm could be generated that would scare the cat away? Would this work and if so, would someone like to help me make it happen? Thanks

Posted by in0v8 4 years ago  |  last reply 4 years ago


Hiding non-present devices?

Hi, It gets extremely annoying when there is multiple drives in my computer but they aren't in use. Does anyone know how to only show present devices or do I just have to live with the multiple devices?

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


Recommendations for lipo cutoff device

I've been looking for a device similar to a battery alarm for 4s lipos that can cut off the power when any one of the cells drops below a certain voltage instead of just sounding an alarm, i've been told that i can get a bms circuit which should be able to do this and that i should try to find the best one i can but i don't really know exactly what to search for. can someone recommend a small and affordable bms please? i won't be charging through it as i have a separate balance charger, i want it purely as a cut off device for when the batteries are in use...

Posted by ambientvoid 2 months ago  |  last reply 2 months ago


Mobile Virtual Presence Device? Answered

Right, so in "The Big Bang Theory" there is an episode where Sheldon makes an rc stand with a monitor on, and it has live footage of his face on it.  There are ways to do this, but they all seem to point to using an rc car with a 10 metre range and 30 minutes battery.  The flaw with this, is that if you want to be at work using one, or at someone's house with it, then you're gonna need a lot more than 10 metres!  How can you make it so that you can control it anywhere, either using wifi or just connecting somehow?  (I'm sorry, I'm really bad at electronics, so excuse my poor understanding.)  As an example, you don't need wifi to text someone, so do you need it to control an rc vehicle?  Ideally, I'd like to make one at about £300-£400, and as like the one from the big bang theory as possible, so not just a tiny stand that people have to keep charging and you have to crane your neck to see.  I'd be happy to use a £60 tablet with skype for the video, but what I'm mainly concerned about is how to control the rc stand/vehicle from a distance away. Thanks a lot! -Finzaz

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


how to make bluetooth device?

How to make bluetooth device?

Asked by Stingat9 9 years ago  |  last reply 3 years ago


Is it possibe for a device to be 100% effecient???

Is it possibe for a device to be 100% effecient???

Asked by west49rules 9 years ago  |  last reply 4 months ago


how to build bluetooth device?

I wanted to turn on/off the LED light from my bluetooth enabled cell phone and building cost can be around $10, not above $10 :) . Is it possible?

Asked by chandan45600 7 years ago  |  last reply 8 weeks ago


Variable wave laser devices? Answered

Are there any lasers available to the general public capable of changing wavelength? If so, where can I get one? Is there an easy way to make one?

Asked by DIY Emilio 7 years ago  |  last reply 7 years ago


Device for touching a touch screen? Answered

I need a type of solenoid/servo device capable of moving a few millimeters at a fast speed. I am building a device that will tap a touchscreen for me via an electric signal (In this case, and arduino.) they need to be relatively cheap and small. I will have four of them evenly spaced over four inches (They need to be no wider than an inch, would much prefer they be less than a half inch in width. Height isn't important, and length should also be under an inch.) They also need to be fairly weak, i dont want one of them punching a hole in my tablets screen by accident. Doesn't need to be controlled by PWM, either off (Not touching) or on (Touching) will work fine. Please do leave links along with the name of the device/part.

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


wind up timer device

Hi all can someone help me find out a way to make a wind up timer? - all it needs to do is manually wind up by hand, unwind through a series of gears slowly.....but needs to have a strength of about 2kg/cm torque. something to unwind for about 30 minutes would be perfect is there anything out there which can be used..or a simple way to make using spur gears and a coil spring? many thanks

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


microcurrent frequency specific device?

How To Create Frequency Specific Microcurrent? I am looking to build a two channel (A/B) microcurrent (allowing from 20 - 600 microamps) with selectable frequencies ranging from 3 to 970 Hz). This is based on a medical device that I'm looking to replicate. I've figured out some of this but again, considering the wealth of knowledge here I'm sure some would know the best way to build this. here are specifications Description Device Specs Frequency Range: 0.1 – 999.9 Hz programmable Wave Form: Square pulses Duty Cycle: 50% Current Intensity:  20μA to 400μA Constant current generator Output Polarity: Programmable alternating, positive or negative Output Load Resistance 0 to 100K ohm Output Channels: Two fully independent channels Output Connection: 3.5 mm mono phone jacks Programming Port: micro-USB Memory: Professional-up to 999 programmable protocols; Patient: up to 99 programmable protocols Power Supply: (2) AA alkaline batteries Dimensions: 5.1 x 3.2 x 1.2 inches Weight: 6.42 oz here is the link i am following https://mendtechnology.com/product/mend-professional-package/

Asked by kedarg2 1 year ago  |  last reply 6 weeks ago


A device to log power from a outlet?

Hello everyone, I am not sure if this is the best section for this. Would anyone know of a device that a novice could plug into a power outlet and it would monitor the power usage to see if there were any drops in power at certain times? I know there are high end AC/DC voltage meters but I need something I could send someone and have them just plug it in to the outlet and it would log everything. Then someone could read those results later. I would image something used in some form of solar setup would achieve this. I appreciate any help I can get on this. Thanks, Jester

Posted by Jester_boy2 5 years ago  |  last reply 5 years ago


How do I convert an AC device to run on a battery pack?

I have a device that runs on ac (110-120 Vac - 180w). I want to make it portable so that it can run off a battery pack such as AA or 9 Volt or even a custom battery. Is this too much of a power requirement to make it possible??? thanks in advance for your help.

Posted by gadgetcrazy 10 years ago  |  last reply 3 months ago


Can I build a gps tracking device small enough to fit into other electronics?

I just bought a house and I have heard some troublesome things about the nearby neighbors. I was wondering if it would be possible to build and wire in a gps tracking device into my electronics (TVs, Comp, Monitor, ect...). I have looked all over online no one makes one. I would like to wire it in direct from the power source inside the tv or what ever all have 110v-120v direct feed. I am good with wiring soldering ect just dont know much about gps and circuit boards but would be willing to give it a try or pay someone to do it for me. Thanks,      Jonathan

Asked by j-rhod24 5 years ago  |  last reply 3 years ago