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
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
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
Hi I have a PU9716 Infrared Spectrophotometer and want to sell it. I am not sure what it's worth or when it was made, but I am told its in working condition. I got it for free from some people for whom it did not provide accurate enough readings. I got some info of the plate on it: serial number: 371261 part number:9423 297 16151 program number:4013 172 55513 Made in England Any help is appreciated.
Topic by dkedr | last reply
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
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
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
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
I want to make infrared remote control for dc motor using a tv remote. Please help me!!!!
Question by RUDR | last reply
Hey all science-type people, I've seen invisible ink pens and things for sale that contain ink that show up in infrared, instead of ultraviolet light. That's really appealing to me for a number of project ideas because digital cameras pick up IR exteremely well (especially with their filter removed). The problem is I think I'm going to want a lot of it, and those dumb little pens are crazily expensive. So any of you chemistry buffs out there have a secret formula I could make? I'd prefer something invisible in regular light, but hey, whatever you've got. :) Thanks in advance for your help, -Kurt
Topic by PS118 | last reply
Hi. Firstly, I'm a software man, never done an electronics project but I own a multimeter and can use a soldering iron. So here's the problem: for my son's wedding in May (that's him in the pic), he's rented an ancient barn with a beautiful timber roof going up to 5 metres. They want to decorate it with coloured paper lanterns, hanging on invisible fishing line. I suggested lighting each lantern with cheap battery operated 10 LED strings. Problem is how to turn them on/off from ground level, say 4 metres away. So I'm thinking infrared triggered switches. There's going to be about 30 lanterns so the receivers must be cheap on components. Here's a possible example of the LED's http://mobile.festive-lights.com/battery-lights/10-warm-white-led-indoor-battery-fairy-lights-clear-cable.html Voltage can be 3 or 4.5v DC depending if 2 or 3 battery model is chosen. I don't know the current of the LED strings, I'm thinking I'll need to insert the receiver switch inbetween the battery pack and the LED load. Hopefully the receiver won't drain the batteries too much in "standby" as we might need to rig the lanterns 4-5 days before the wedding and it's not practical to get up to the lights again. So, long explanation... I've seen a couple of projects on this site which look nearly right but my knowledge isn't enough to make adjustments. Can anyone give me a solution from which I can build a prototype? I'm hoping I can use an old TV remote as the transmitter. Thanks in advance for your help
Topic by juskat | last reply
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
Could someone please tell or show me a fairly inexpensive way to throw an infrared beam across my office and once it's tripped by an intruder an outside alarm or siren (I mean the loud ones-like you can hear several blocks away)would go off. I'm so impressed by the quality of minds on this website. I know someone can probably help. Bless You All.Thank You So Far!
Topic by ropor | last reply
Question by XOIIO | last reply
Question by tejasai95 | last reply
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?
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
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
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
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
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? www.ocinside.de/go_e.html
Question by colton.asu | last reply
I was looking at the brand name model Eden Pure Infrared heater
Question by bullit224 | last reply
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
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, http://www.allelectronics.com/make-a-store/category/340250/LEDs/Infrared/1.html )--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 http://led.linear1.org/led.wiz 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
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
Question for you sensor experts... I'm looking to do a project that would involve detecting when an item passes through a doorway near ground level (~6 inches above ground level). Doing a bit of research it looks like a reflective infrared sensor would do the trick ... only issue I have come across is that there seem to be a slew of these sensors with detection capability of about 15mm max and then another class of these (home security grade) that have detection capability for several 10's of feet. Any ideas on a RIR sensor (links appreciated!) that has capability ~2-3 feet? Another caveat is I'd like to string up multiple of these sensors in a close proximity, each with the sensor observing a 2-3 ft area right in front of it. Thanks! Nick
Topic by NickF73 | last reply
I want to set up a short distant IR sensor(<1"). I just want it to register when something is between the two items. Its a pretty simple circuit I just have no experience with optical receivers. Any help would be greatly appreciated, thanks
Topic by stino66 | last reply
An article in Science News today shows an infrared image of HR 8799 with three roughly Jupiter-sized planets around it! The speckling in the center (around the "+") is the star.The same article shows two Hubble images of Fomalhaut taken 18 months apart. The two images show directly the orbital motion of a previously detected planet, Fomalhaut b.Update (10:12 pm PST 13 Nov 2008): I've attached the two pictures from the SN article. The first is the IR composite of the three-planet system HR 8799; the second is Fomalhaut, showting the offset of Fomalhaut b between 2004 and 2006. I encourage you to read the actual article to get the details of how the data was obtained, and to judge for yourselves its veracity.Update (12:05 pm PST 14 Nov 2008): The two articles are out in today's ''Science'' along with a news article and editorial (requires subscription).HR 8799: Morois, et al.Fomalhaut: Kalas, et al.
Topic by kelseymh | last reply
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 http://i.stack.imgur.com/Qhoy8.jpg 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
Question by Pavlex4 | last reply
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
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 controller...my operating system is window xp pro
Question by sora | last reply
I want to buld a ir detector. Would this curket work?
Question by David97 | last reply
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
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
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
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 http://www.fairchildsemi.com/ds/QS/QSC112.pdf http://www.fairchildsemi.com/ds/QE/QEC123.pdf 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
I'm making a modification of the Table for Electronic Dreams (https://www.instructables.com/id/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
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