Questions tagged [infrared]

IR is electromagnetic radiation with longer wavelengths than those of visible light at 0.74 micrometres (µm) to 300 µm, which is extends the nominal red edge of the visible spectrum.

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RoboCup Junior IR Ball detection

RoboCup Junior uses an IR ball which emits pulsing infrared light (before this it was a steady beam which sensors could not differentiate from environmental sources). A presentation outlining the ...
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336 views

Infrared ranging

I've been taking a look at these swarm robots and am very impressed. There is, however, one aspect of the robots I'm confused about, which is the infrared ranging they use. The robots have a wide ...
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702 views

Remote Control Design

I am want to design a remote control. All I need is the appropriate IR LED and the Receiver to use, that will yield optimal performance. i need real practical experience here. What is the best ...
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438 views

Converting an analog signal of varying maximum and minimum values to a series of pulses

I have a situation where I need to convert an analog waveform into a series of pulses. The generated signal will be coming from an IR LED/photo-transistor pair that will output a signal whose maximum ...
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585 views

Creating an IR sensor

Is a PIR sensor as easy as just a receiver? Rather than use some pre-canned device I was planning to just hook up an IR LED to my microcontroller and then read the IR sensor/receiver for a threshold ...
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IR Led Strobe - Arduino

I need to modify the schematic below to accommodate for the change from 6 5mm IR Leds to a single 5w LED star. Previous 5mm LEDs High output infrared LED 5mm 1.2VDC 100mA 940nm New 5w ...
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What are the relevant parameters for a reverse-biased LED light sensor?

Following this appnote (PDF) on using photodiodes, I'm connecting an IR LED as a light sensor and emitter, configured like this: To emit light, I pull PIN1 high ...
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Cheap effective proximity sensors for detecting people?

I'm building a small device that will be mounted on the ceiling (along with many other identical ones), facing downwards. I'd like to detect when someone walks underneath it. Due to the constraints of ...
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Is a class I infra red laser range finder with range 30-40 metres possible?

For our warehouse, we need to build a range finder for monitoring purposes. We have the following constraints: Use infra red lasers only Range should be at least 30 metres Only class 1 lasers ...
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power source affecting my IR receiver

I have an arduino with a simple 3-pin IR receiver like you would find at radio shack. The receiver works fine when the power supply to the arduino is 6 AA batteries, but not when the power supply is a ...
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1answer
560 views

Transmit data without microcontroller?

I am working on a remote-controlled (IR) lightswitch. This is pretty easy with an Arduino; you just do serial I/O with an IR receiver/transmitter to read "ON" and "OFF" signals. I want to know if ...
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What is the other name for the 276-640? [closed]

I remember from reading on a website that Radio Shack parts are known by another name. For example the 276-038 is a 1458 and a 900-6298 is a 353. I would like to know what the 276-640 is so that I can ...
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502 views

Using a 276-640 instead of a tsop 1236

I'm trying to use a 276-640 instead of a tsop 1236. I heard that it will still work. I can't find any datasheets for the 276-640. In the tsop 1236 datasheet, is the picture below. Does this apply to ...
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Which infrared bulb should I use with a photodiode?

I'm currently using a photodiode (found here) along with the appropriate emitter to send data between mobile robots. I'd like to the sensor to optionally be used as an ambient light sensor using a ...
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4answers
7k views

How to receive IR signal in PIC18F

I need to receive signal from IR transmitter LED. I am not sure how to program the microcontroler. I am looking for some concept, how to do that. Whether I have to use A/D conversion? How to ...
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1answer
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interface IrDA with encoder

We have a pair of IrDA and its encoder/decoder. After reading the datasheet, we still dont know how to interface IrDA with En/Decoder. Here is our current connection: When using BAUD rate 9600, we ...
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Choosing The Right IR Emitter for a Photodiode

I am working with the following IR photodiode http://www.mouser.com/catalog/specsheets/bpv22nf.pdf However, I am having some trouble figuring out what sort of IR emitter I can use with this. I am ...
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2 Way IR communication for my robot

My next robotics project is a "1 cubic inch robot" and I am planning to add a 2 way wireless communication between my robot and a computer. Since for that size Power is a big bottleneck the best I ...
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Understanding the IR Emitter / Detector I pulled off of an inkjet printer

Long Story Short It's a "linear/rotary optical encoder," or, "incremental encoder," like this one, which costs about \$6: http://www.mouser.com/Search/ProductDetail.aspx?R=AEDS-9641-...
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Moving PIR sensor (or IR camera), aka Predator like alien scanner

To avoid public transport and the car, I decided to go to work on foot everyday but I have to pass a small, but dark (in the evening) and scaring wood. Even if I use flashlights, I'd like to have a ...
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3answers
7k views

Best way of making a trip-wire type device?

I'm wanting to make a type of electronic "trip wire". My basic idea is to have like a laser and basically when the laser is interrupted then it sends some signal to a microprocessor. I'm not tied ...
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2answers
867 views

How would I make an IR beacon system

I'd like to make a beacon system for robots where the beacon will have some IR LEDs around it pulsing at some known frequency. The module that hooks up to the robot will have a few IR ...
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Best wavelength for IR LEDs to be used with a hacked up IR camera?

So, I recently saw this question and thought it looked simple enough. Instead of a webcam though i used an actual (but old, 3MP) digital camera. The camera was a bit broken anyway(always exposed with ...
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Test if webcam picks up infrared

I know the good old-fashioned way of shining a remote at a camera to see if it picks up infrared, but I'd like to know if there's any code that does it for you. That'd be much more professional.
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How can I use a Integrated IR Receiver IC in a sensor circuit without microprocessors?

I am asked as a term project to design a circuit that is somewhat similar to a park sensor. Let me first say that I am a 2nd year undergrad student, and we are very newly beginning to get into the ...
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Interfacing TSOP IR Receiver with Arduino

How do I send signals from a 38 kHz Vishay's TSOP series IR receivers to an Arduino and make the Arduino act accordingly(eg. move a motor)?
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Using 38 KHz IR receivers to measure distance

Can I somehow use Vishay's TSOP series IR receivers and IR LEDs to measure the distance from an object? Has anyone done that before or has any idea how one could do it(clever programming or circuitry, ...
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824 views

Design for a simple IR-Receiver for PC

I need to control my PC with an IR remote control. The piece of software I think I can use is WinLIRC. Or can someone can suggest something else? Please can someone give me the simplest hardware ...
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5answers
438 views

Simplest remote IR?

What I need is: when I turn on a IR led, a receiver circuit in the other side would have 5V or 0V depending on the state of the transmitter. Simple. I have a IR transmitter and a photo-diode for ...
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6answers
470 views

Keeping those IR LEDs

For all the other stupid things I often do, I've found ways to boobytrap myself. For example keeping my wallet on the floor where the door opens - I can't help but stumble on it when I leave the ...
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3answers
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How to build an IR Repeater?

I have a digital cable box that lives in a wooden cabinet under my tv. I would like to use the remote with the doors to the cabinet closed. It looks like an IR Repeater runs about $30+. Can one be ...
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Wii remote as ir signal detector

Hi am currently looking at creating an IR remote control for a robot but i need something that i can use to monitor the signal so i was think that a wii remote has a IR cam in it so i can use that to ...
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Confused by IR pulses

I'd like to decode some IR signals from a TV remote control. I scavenged a 3 pin IR receiver from some old junk and hooked it up. From what I've read about RC-5, I was expecting to see a start bit ...
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How to use an audio output to generate IR frequencies

I have an idea for a project but need some help on achieving what I want to do. I want to create a device which will insert into the audio jack of my iPhone which will emit IR signals to control my ...
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Components for a WiFi enabled IR controller

I don't have any experience with electronics really but I do have experience in programming. I'm interested in writing a program to control my stereo, TV etc. To achieve this I'll need a piece of ...
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4answers
670 views

How can I generate a logic pulse from a broken IR beam?

I would like to trigger a [7]555 timer when a phototransistor stops receiving light from an IR led, more precisely when the (expected to be smallish) signal from the light-sensitive voltage divider, ...
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2answers
417 views

IR Connector for Sharp

I bought one of these, and forgot to get the connector. http://www.sparkfun.com/commerce/categories.php?c=139 Now I need to buy a hall effect sensor and was thinking/looking at mouser, Does anyone ...
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1answer
632 views

Problem regarding Stephen Hobley's lib for Pixart Sensor

I wonder whether anyone here would have actively worked with the Stephen Hobley library for Pixart Sensor here. I used the same hardware configuration as mentioned in Stephen's website. However, I run ...
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2answers
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IR LED Detector question

I need to buy some IR LED Detectors but I am having a hard time finding anything except for the 940nm. It seems that there are only three types of IR LED emitters and detectors sold. 850nm, 880nm &...
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446 views

Light Modulation and Detection

IR light is the mainstay frequency for optical communication systems. How could I experiment with UV frequencies doing the same thing? Ideally I want to set up a serial link just as is often done with ...
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1answer
404 views

How to make a picaxe service remote for a pioneer ir controller for a DVR - 660H and DVP 540H DVD recorder

How to make a picaxe service remote for a pioneer ir controller for a DVR - 660H and DVP 540H DVD recorder
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2answers
405 views

Distance sensor IR

I am building a distance sensor..I have the ucontroller portion done. I was going to use IR to reflect a beam and get a proportional analog voltage to estimate distance but...it has no range Any ...
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low voltage motion sensor

I am looking for a motion sensor device that can track person/animal walking by it and record time/date of the event(s). It needs to be able to run on a small battery or two (maybe 2 AA's or a 9 volt)...
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IR Remote code for Arduino

I've just hidden away our entertainment centre electronics including our Infrared controlled DVD Player, Amp and Mac Mini . I was wondering if there is any IR Remote code for Arduino, that I can use ...