infrared switch

I was wondering if they make infrared activated switches, so its like wireless. if they do where can I get them, I've seen those 10x things but they don't really appeal to me.

Topic by Jordo   |  last reply

Infrared detector help? Answered

I have 2 infrared detectors (like the one in picture) with 3 pins and want to make a simple detector to turn power on and off. The reason is that I want to make a line following robot. I only need to be able to put enough power through it to power a relay on or a transistor. Please help I need to know what all of the pins do and how to use them. Or even better a curket dyagram that turns power on and off by infrared without using micro processors.

Question by David97   |  last reply

Infrared transmitter and receiver

I want to make a gadget which sends a few kb of data via infrared and also receives data via infrared with a timestamp. However, I am stuck as I have only used arduinos before and I have to design a circuitboard which I have never done before, with PIC microcontrollers (must be cheap ones). I need help a) choosing a microcontroller and b) assembling all the components into a circuitboard (ir transmitter, receiver, microusb port to transfer data to pc, battery). Gadget will eventually be portable so make everything light. Thanks Khalid

Topic by khabro   |  last reply

Infrared Sauna wiring?

Well, I bought a used infrared sauna the other day for real cheap because it "just stopped working all at once". Figuring its just a fuse or something, I took it. Well now I cant figure it out for the life of me.What seems to be the problem is that no power is getting to the primary transformer. That would be on the second small circuit board to the right. It is getting to the secondary transformer fine. Heres a pic of whats goin on. Those things on the sides are fuse holders, (no not burnt out).

Question by LiquidLightning   |  last reply

Infrared Variable Output? Answered

I am trying to wire some infrared LEDs to an Arduino. Problem is, the signal from the infrared LEDs has to be able to change variably, like from a potentiometer. What I mean is, I am aware you can read an ouput from an IR LED, then use the Arduino to replicate this and consequently control things, but what if I wanted to ouput a signal that changed, like a potentiometer? Basically, I would like to be able to control some motors speed through PWM by a potentiometer, but wirelessly. I'm not sure if this is possible, and if it is, is there some information I could look into? Any help is greatly appreciated.

Question by Adum24   |  last reply

TFDU4100 (PC infrared serial connection)?

I have this infrared transceiver module tfdu411 : data-sheet here the recommended circuit is here well, this circuit is for motherboard with built-in IRDA port , and sure mine does not have one so , can i built this connect this circuit and connect it directly to the serial 9 pins port ? if not , is there any way to connect this module the the PC and build an infrared transceiver ? thank in advance

Question by lu2a 

How to build a infrared transmitter & receiver ? Answered

I am on a build to make a led display for my room , i want to toggle it on/off  using a infrared remote & that is the part i have no idea how to do ( I am not good at IR circuit's ), Googled it but was unable to understand them. I would be greatly thankful  if someone could help me on how to make it  , & the part's that would be required ( or simply link to any good instructable ) Have a nice day guy's Regards Bobblehead Einstein

Question by Bobblehead Einstein   |  last reply

How to use a television remote to on/off a DC motor?

I want to make infrared remote control for dc motor using a tv remote. Please help me!!!!

Question by RUDR   |  last reply

USB Infrared Receiver for PC

 I have been wanting to build a USB Infrared Receiver because I do not have a serial port, and I do not want to use a USB to serial. What do you all think of this idea?

Topic by colton.asu 

IR (infrared) tripwire (arduino)? Answered

How can i build an infrared tripwire for my arduino bored i have a IR photo transistor and a IR led, What i want to do with this is control a relay which turns my light on when i enter the room and off when i exit. Thanks

Question by Daniel Deacon   |  last reply

I need to remotely turn on and off 55 tvs in school classrooms. How can I build an IR system for this? Thanks, RM

I want to build a hardwired IR network in the school building to each of the tvs. What all components would be needed and how to assemble these components?

Question by    |  last reply

How can I turn a Sony Handycam w/nightvision into a Thermal Imaging cam with temp?

I want to View Electrical Wiring and motors for hot spots and lose connections. I have a Sony Handycam with the night vision that I can use. It is going to be used in a Vocational High School for Teaching Students electricity

Question by electricproff   |  last reply

IR heaters?

Hi all, So I've been searching / reading up on IR heaters and I can easily find IR bulbs /heaters, at 30W+ but the bulb's are pretty big (in regards to what I want). Is there not any smaller-scale /electronic componets for producing IR heat? I know there are IR LEDs but is that the same thing? I'm a bit lost and I swear I came across something before that had an array of small scale IR heating componets, but quite frankly I dont really know what I'm searching for, in regards to a correct name etc... Thanks in advance :)

Topic by lukus001   |  last reply

IR Switch. Will this work? Answered

Hi Guys & Girls Obviously, i am new to this and my electronics knowledge is very limited. Let me first explain what my desired outcome is and then proceed with the questions i have. In the schematic below i connected two circuits that i found. One is a infrared receiver and the other a flip flop. With that, the following needs to happen : when the user presses a button on a IR transmitter aimed at the receiver circuit in the schematic it is sent through pin 3 to the flip flop circuit which in turn puts the relay in a (permanent) ON state. When the user presses the same button again, the process is repeated and puts the relay in a (permanent) OFF state. So bottom line a 1 button/channel IR press on press off switch to switch my 12v circuit on/off. Here are my questions: 1. Is the receiver circuit correct as i have drawn it i.e. will it work? 2. Is the flip flop circuit correct as i have drawn it i.e. will it work? 3. Where i have the red circle : 1. Is the connection between the receiver and flip flop circuit there correct? 2. Do i need another resistor there? 4. Do i need a “floating resistor” as a R5 around the relay and how does the practical application of this look (on all the diagrams i look at it’s drawn around the relay going from an input to an output on the same wire......does that mean that on the pcb it will run parallel between the “pos+ and neg-“ going into the relay?) 5. Is my relay connection correct within the blue circle? 6. All and all, put together will my circuit work as expected? I know there are probably a whole bunch of ways to achieve the result i am looking for and being a noob, this might be the most impractical(i don’t know), but the reason i went this route is because i have these components available to me and if at all possible, i would not want to go and buy other components. Thanks in advance for any help provided. I find it much easier to learn by building the circuits and then seeing with a multi meter etc. what the effects of each component is than reading through all these books and trying to cram everything into this thick skull of mine  Schematic Component Values : R1 = 220k ; R2 = 100k ; R3 = 10k ; R4 = 10k ; R5 = ? C1 = 1uf ; C2 = 0.01uf ; C3 = 10u Rx1 = Any tsop/similar U1 & U2 = 555 timers

Question by GhengisKhan1981   |  last reply

IR (infrared) "motion detector" of sorts, need help please

I am looking to build a sort if motion detector that works with 2 IR emitters, 2 IR receivers and a motor, the emitters and receivers would be  in 2 seperate circuits and lined up with eachother  (the emitters constantly on) and when the link to the receivers was severed (for example by someone standing between the emitter and receiver) the motor would rotate, if the left emitter-receiver combo was disrupted it would apply positive voltage to the motor and if the right emitter-receiver combo was dusrupted it would apply negative voltage, is this even remotely possible? Firezone

Topic by firezone   |  last reply

Infrared heating devices, has anyone made there owne ?

I was looking at the brand name model Eden Pure Infrared heater

Question by bullit224   |  last reply

would this Infrared extender diagram work? Answered

I am wondering if this diagram would work or not. i am needing it to run off of 3(ish)volts and it needs to be small so i can put it on my palm zire 31 as a ir extender running off of sd card slot power. would this work? or would the other IR detector work? please help, anyone! thanks in advance, z247 ps: i didn't boher with + and -, but i do know how to hook it up

Question by zack247   |  last reply

Bluetooth remote?

I really really really hate infrared remote controls. When I'm sitting comfortably, I always have trouble pointing it just right. Of course I realize this is probably an issue with my setup, but it wouldn't be an issue if the remote used Bluetooth. So I figured I'll write an Android remote control app that pairs with a little Bluetooth box that has an infrared led pointing right at the decoder. Thing is, the programming is no issue, but I haven't built anything more involved than an AV-switch box in the last decade. So I'm hoping someone can give me some guidance on using off-the-shelf components to pair/send/receive Bluetooth commands and decode them so I can flash the little infra-red LED. I'm perfectly happy to handle storage and all the other requirements on the phone.

Topic by KingCoder   |  last reply

Resistors are too warm

Hello,I am building a multi-touch surface using the FTIR method and after the surface is powered for about 10 minutes there is a heated smell in the room, I have noticed that the resistors are very warm and that a couple have started to brown or burn. I really need this table to be able to be safely powered at least 18 hours a day.Here are my specs:LED's:I am using 88 Infrared LED's (T 1 3/4 INFRARED LED, )--8 LED's per series--forward voltage of 1.5v --forward current of 100mAResistors:I am using 2, 10 ohm 1/4 watt resistors parallel (so 5 ohms) with each of the 11 series'Power Supply:The power supply output's 12 volts DC and 1.2 ampsWhen I calculate using it says I only need 1ohm 1/4 watt resistors, I haven't tried this yet but it doesn't seem to me that this would rectify the situation. My guess was that I need 1 watt resistors, but the calculator didn't seem to agree.Any thoughts as to what my problem is? is it safe to go with 1 ohm 1/4 watt resistors? or do I need 1 watt resistors? Any help would be very appreciated, thank you!

Topic by hapticdata   |  last reply

Human Detector

I'm trying to come up with a small, cheap, simple circuit that will detect a human. I plan to use a grid of luxeon rebel OLEDs and whatever detector I come up with embedded in my ceiling to light up only when you are under them. I've looked into passive infrared, but it's fairly expensive for the components I could find. Any leads for circuits, ideas, or parts? I'd use parts from cheap security lights, but they tend to be around $10 each and I would probably need around12-18 ... kinda painful on the pocketbook. Thanks in advance for any help!

Topic by homba   |  last reply

What do you think of this USB Infrared Receiver idea? Will it work?

I have been wanting to build a USB Infrared Receiver because I do not have a serial port, and I do not want to use a USB to serial. What do you all think of this idea?

Question by colton.asu   |  last reply

using TSOP4838 in anti-collision line follower

i want to use IR sensors with emitter part ( IR led ) - calibrated with an IC timer to give 38KHZ IR signal - mounted side by side - not face to face like the counter module - to the receiver part ( TSOP4838 ) which will turn on once something reflect the IR signal back to the receiver. [ the default is that IR signals will go straight forever without being seen by the receiver ]. I've followed the steps of a circuit using IR sensor in an object counter module it included transistors to be triggered instantly as described the problem is that it gives an instant pulse to trigger the 7-segment display. but in here i don't need it to be instant. how could i implement it to make the LED bright as long as i block the path [ not instantly ]. and to be off whenever there's no object in front of the robot

Question by superdz 

controlling computer with a infrared remote program?

I have a dell latitude d410, it has a infrared port, i want to know is there is a freeware program that lets me take a universal remote and use it on my computer as a media remote or a dvd remote on my computer... i have a ''on Intel(R) 82801FBM LPC Interface Controller - 264"infrared operating system is window xp pro

Question by sora   |  last reply

Infrared detector curket. Would this work? Answered

I want to buld a ir detector. Would this curket work?

Question by David97   |  last reply

Passive Infrared Detector (PIR) Issue

Hi folks.  I have a 6000 Series PIR originally manufactured by GE security.  The sensor is wired to a OMRON MK2P-S 8 pin relay.  The relay controls an audio alarm. Everything worked fine for a while but now it no longer triggers the relay, despite the LED indicating it should.  I can physically disconnect the COM connection and it will force the relay to trip and perform the desired alarm message.  The voltage to the PIR is 13.5v (specifications indicate 10v-16v is the acceptable range).  I have set the jumper for 2 and 3 pulse with no difference in behavior.  Any troubleshooting ideas?  Thanks in advance.

Question by mhammer99   |  last reply

How to make a camcorder see Infrared light? Answered

Hi, I have an old JVC GR-AX280 camcorder that I would like to turn into night vision.I know it has a filter that makes it so you can't see infrared light.How do I replace the filter with something so you can see infrared light from a infrared LED light board? I have another camcorder and I removed the filter and lost it.The camera doesn't have very good picture now,almost nothing.Looks like I need to have something to take the filters place to get better picture again. Any ideas? Cheers

Question by luther303   |  last reply

How can I replace a single wire with an infrared link?

I just want to have a digital communication interface become infrared. I have data going both directions, so I need to have the system be two-way. If possible, I would prefer using radio of some sort. For infrared, would it be as simple as an IR LED and NPN phototransistor at each end? EDIT: Bad news. The system needs 2 wires to transfer data. Since IR would mix together, I need to use 2 different radio frequencies. Does anyone know how to send and receive simple pulses of radio waves?

Question by 4lifenerdfighter   |  last reply

Help with a learn to solder project using infrared LEDs

Hi, Recently my company remodeled our EE lab and was going to throw out a huge amount of electronic components, since they didn't care I took all of them instead.  Next spring I am likely going to teach a small class on basic soldering. I can solder well enough to teach others, but I can't design circuits at all. I'm looking for some kind of project that could use some of the parts. The coolest parts are infrared LEDs and Phototransisters. I have thousands of these Fairchild QSC113 and QEC122 I also have around 30 small piezio sounders/buzzers no part number A couple hundred red and green short leg LED (Can't do a cube matrix as the legs are short for a angled board level mount) Lots of small switches I know I have 3904 transistors as well as many other flavors but I don't have the numbers in front of me I also should have any small caps, resistors, diodes, and zener diodes I know I also had several 555 timers and lots of resonators and crystals in various speeds Circuit goals Through hole only No Surface mount Able to be made in 1-2 hours by new solderers Class will be limited likely to less then 10 attendees depending on # of soldering irons I can find Circuit has to do something with an effect like sound or light so they feel like they created something I would like any extra costs to be under $40 for the whole class as I will likely have to pay for it Each circuit needs to be able to be taken home Ages will be from about 14 to 75+ I do not have have most of my extra parts sorted but I do know a general "type" of the parts so feel free to use a part and I'll see if i have something similar. If I like your circuit I'd be glad to send you 250 of each of the infrared LED/phototransiters The class will be taught at Hoosier Recreation Workshop -Steve

Topic by nevets_mcd   |  last reply

Can IR light from an Infrared LED pass through semi-opaque acrylic?

I'm making a modification of the Table for Electronic Dreams ( and want to expand it with white LED's that turn on and get brighter as an object above it gets closer to the surface of the table (I'll be replacing the LED's in the original instructable with blues).The only (and thus, the cheapest) way I can think of sensing this distance without cutting holes in the upper piece of acrylic is to use an IR transceiver on the circuit board and connect this to the white LED. Would this work? I'll be using .25-inch white acrylic if that makes a difference.Any assistance that you can provide is greatly appreciated.

Question by SJBarag   |  last reply

IR Led Sources

Anyone have a source for near-infrared LED's? I want to build a night light for my video surveillance system. Maybe NIR wouldn't alert "strangers" until they are captured on camera. Thanks.

Topic by doctek   |  last reply

Wiimote Whiteboard help?

So i have a wii remote and i made an infrared led pen and i want to do this project, but the software aspect really confuses me. i went to Johnny Lee's website to download the software but the windows visual thing you need to download has so many different options and i dont know which one to pick and some other links on his site, when i click them, it just downloads a folder and i dont know what to do with it. Can anybody help me out here?

Question by texpert   |  last reply

IR Beam issues.

So I have been working on an airsoft tripwire type thing. I have the circuit entirely finished. I am using an infrared photoresistor and the one problem I am having is that I can't seem to focus the beam from the IR leds very well. I have three of these ( at my disposal. The IR leds are a pain to line up with the resistor on the circuit. So I ask you, what do you think I could do? Ideas on better ways to focus the beam as well as perhaps ideas for replacing the photoresistor are appreciated. The IR photoresistor came from radioshack. I'm pretty sure this is it:

Question by DesChamos 

Is there anyway to fix my remote?

So I just got a new TV for Christmas (yay me), but the remote is fubar'd. If the remote and receiver are offset by more than a few degrees, it stops working. It's working far worse than a normal TV/remote does. It's a normal IR remote. Any ideas of how to fix it? Thanks!

Question by dedgerton   |  last reply

How can i make Remote Controlled Projector Platform?

I made a small platform that holds my projector. I use a battery and motor to make it go up and down. How would i go about make a remote control interface for this using IR? what would i need? appreciate any help i get!

Question by liverguts99   |  last reply

How can I use the native IR port on my Dell to capture IR TV remote signals?

I liked this article about capturing IR signals, but what if I already have an IR device on the side of my Dell Latitude (D610, if it matters)? Is there some software that can tell the port to listen for remote control signals and save them as raw data?

Question by V-Man737   |  last reply

Laser diode driver question

I'm planning on building an on building an IR light source for a DIY night vision setup. to do thus I'm using a 300 mw IR laser diode. the diode needs to be powered by 2.2 volts. I'll be using a LM317T to adjust to voltage but my question lies in the current needed. I'm familiar with powering LED's but not with diodes. since the power is 300 mw and the voltage is 2.2 V would i be powering it using about 130 mA? in addition to that how would I achieve this? I know the LM317 can be used as a current regulator but how is this done? any help would be appreciated, thanks.

Question by senortaco   |  last reply

How to send numbers over IR with Arduino

Hey! When I buy a cheap remote from the store, and I run a IR receiving sketch, every time I push a button I get a series of numbers e.g. 1259575. Now I now how to receive IR. But how do I transmit a number through IR? Every where I go it is outdated and doesn't work. All of Ken Sheriff's stuff is sending special Sony, Panasonic and othercompany's codes. I just want to send a number. I just want to hook up an IR LED to Arduino and have it flash a number! Simple, right? Thanks!

Topic by HavocRC   |  last reply

Any good Transparent & IR through (not reflect it) Cheap Material?

Hello. I am trying to make a setup with using Kinect to see through the transparent projection screen. For cheap material, I used a transparent plastic vinyl (Greenhouse Covering) But the Kinect won't see through much of the transparent screen. Also I think the plastic screen reflects some IR light from Kinect. BTW, the screen is quite big. 10ft wide, 6ft high I tried with small solid plastic (CD case), and it worked perfectly, see through IR and no reflection. I don't know why this transparent vinyl sheet won't work... Is there any cheaper material that is applicable for IR through and less reflective? Or should I add extra bigger IR illuminator? Please help.

Question by toshi182   |  last reply

How can I boost current to multiple IR LEDs

Hi, I've been working on a project with an arduino to use it as a TV-B-gone, now i know this has already been done and I have found lots of helpful documentation and code so far. I've wired up a matrix of LEDs in a 4x5 pattern exactly like this one taken from this project . The design works, but with the setup I have now, i'm just supplying whatever current the arduino is outputting to the LEDs, I know I need some resistors and a transistor and thats what I need help with. I did also buy a 2N3904 transistor like the one in the project however, when I wire it up, nothing works. The lowest resistor I have is 220 ohms and I've tried wiring that up in various places throughout the circuit. Does anyone have any tips that would help me maximize the range for this LED matrix? thanks, ill be taking circuit classes next semester so one day ill be able to figure this out myself.

Topic by jcouch1227   |  last reply

What is the best code approach to add infrared control to an existing program?

I designed a scrolling message board that is PIC based. I have also written separate code to decode an infrared signal. What is the best way to add the infra code to the message board software. Should it be interrupt the scrolling message every time a character is receiver by the IR receiver? The are 32 bits that need to be decoded each time a key is hit on the IR transmitter.

Question by bronx68 

What kind of lense do I need to see infrared with my eyes? Answered

What kind of lense do I need to see infrared with my eyes? I want to take pictures and see inrared with my eyes through a lense or filter of some sort. What kind of filter do you recomend? Can I see IR with a IR filter? (def. of a filter: blocks certain wavelenghts of light). Thanks

Question by QuickTime   |  last reply

How to guide a vehicles with two infrared sensors?

I have a robotics project where I need to guide a few robots to specific circles that are at a random distances. On the day it is due I will be given the distance to the middle of the circle and can adjust what ever guidance system I have. There is a budget cap on the project so i would like to use just one or two controlling things for every robot. Now what I was thinking was to set up some sort of IR beacon in the starting square. If I placed two beacons, one at each corner or the square (each circle is a certain distance from each side of the square) I could have an arduino to remotely control them. I hope that makes sense so if you have any ideas or questions that would welcome both. Thanks in advance, Zootsuitman

Question by zootsuitman   |  last reply

IR Jammer Kit - Infrared Remote Control Jammer

If you are looking for an inexpensive kit to learn some soldering and have some fun with the project this kit is for you. All of the parts are through hole and the kit is cheap at under 15 bucks! The IR Jammer is a fun project that provides a bit of safe, non-destructive fun. The Infrared Remote Control Jammer allows you to render all IR remote controls inoperative! The microcontroller in this design allows for all 6 of the main IR frequencies to be targeted making this unit universal. It works by corrupting the data that is being sent by your normal remote controls. Instructables Page. Go to Project Page. Purchase the project in the online store. Go to the dedicated kit page.

Topic by abbtech 

Does anyone know if speed cameras have Infrared Filters?

Just curious, do speed cameras have IR filters.. is kind of a hard one to test this one, it would involve me driving through them and copping fines to see the pictures. I have a project in mind that relies on them not have a Filter or a slight filter....

Question by grimgroper   |  last reply

DIY Infrared range disappointing, TV left wanting more...

I have constructed what I like to call a circuit...and maybe therein lies the problem. The folks over at have been gracious enough to post the schematic to the hardware that they also sell in the store. I have followed this as close as I could, however I have gone astray in 3 areas. PROBLEM The unit works, my television turns off/on but only if I am within 3ft from it. The website states that their device works at over 10 meters (18+ miles right?...I'm kidding, just a little Imperial system humor). 3 known differences 1. R5 calls for 1k2, I don't have one...I used a 1k and a 330 in series. 2. C4 and C5 call for 10uF, I used 10uF for both. However, one of them is 16v and the other is 50v. 3. I don't have a 6v battery, so I have tried 5v, 9v, and 12v with the same results in each case. Would any of these 3 mistakes cause my range to be 10x less than the site claims? 

Question by earthtown   |  last reply