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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Can infrared cameras be used in the presence of light or is it compulsory it has to be used in the dark, to get a thermal image of the desired object? [on hold]

The question I asked could seem silly but I was wondering if there was a way of capturing the heat signatures of objects or people even during the day time. Also if we were to use an infrared camera, ...
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0answers
44 views

Decode an infrared signal with an IR demodulator inside a microphone jack

I was looking at this tutorial about how to decode an infrared signal. One of the posts says For the scoped challenged (like me), a PC microphone jack works great for reverse engineering IR ...
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1answer
53 views

Make sure this equipment can do what I want (infrared decoding) [on hold]

I'm CS but took a digital electronics physics class at my old university and found it really interesting so I wouldn't mind having my own small EE workshop. For my main project I just want to decode ...
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1answer
57 views

How do car remote lock works? [closed]

How do car remote control work? On what medium do they communicate? How do the transmitter and receiver communicate? Is it blue tooth, infrared or any other kind technology?
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1answer
35 views

MilesTag IR communication protocol

I'm making my own laser tag and I was checking out existing open source solutions. The MilesTag protocol uses 600us as the basic pulse length. This however limits the maximum rounds per minute to ...
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2answers
31 views

Infrared Signals w/ Arduino

I am working on a project that uses infrared LEDs to send signals at certain intervals. The arduino I was planning to use would've been sending data @ 9600 mbps, and sent a signal, such as "hi" every ...
3
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1answer
64 views

Circuit Board Design Help (Novice) [closed]

I would like to see if the project that I am currently working on is something that can be done. Any help I can get would be much appreciated. I hope I am providing enough information. I am looking ...
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2answers
97 views

Why was a resistor and capacitor used in this IR receiver circuit

The circuit shows an IR receiver whose output pin is interfaced with a PIC. Can you explain why a resistor and capacitor were used and why those values were picked.
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1answer
55 views

Multiple infrared proximity sensors and Arduino

I am wondering if it's possible to connect multiple infrared proximity sensors as this one http://www.adafruit.com/products/1568 to an arduino uno. I would need to connect 5 of them pointing in ...
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3answers
65 views

Datasheet's frequency vs. real-world frequency for IR LED

I am very new to calculating frequencies, but here goes... The datasheet for an infrared LED states that it can handle a current of up to 1A when the voltage is pulsed at 300 pulses per second and a ...
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0answers
58 views

How many IR LEDs needed to get accurate remote control signals around room

I'm trying to make a stationary TV remote control and I'm not noticing the difference between using 12 IR LEDs and 1 IR LED. I still can't get the TV (for example) to get the IR message if the LEDs ...
1
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1answer
54 views

IR sensor not showing result on serial monitor [closed]

I am trying to display the value received by an IR sensor on the serial monitor. The sensor blinks the led when I press a button but does not show anything on the serial monitor. I am using my own ...
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2answers
48 views

Problem with Optek OP265AA infrared LED

I can't seem to get the op265AB infrared LED from OPTEK to light up. I'm using my phone's camera to look for light. This works with Radio Shack part 276-0142 but the OP265AB just isn't lighting up. ...
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0answers
78 views

Distance sensing with comparator

I want to implement a alert system using a comparator circuit. The circuit will alert the user when he is a certain distance away from an object of interest. The comparator circuit will comprise of an ...
0
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0answers
78 views

Minimal infra-red communication distances

I am having a problem establishing a practical IrLed communication transmission/reception distance in low ambient light levels with devices: IrLed TSAL6200 IR Remote Reciever TSOP38238 I am ...
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1answer
46 views

Infrared LED intensity

I'm trying to make a stationary remote control that doesn't have to move. Basically I need to use a high intensity IR LED (I think). I'm assuming if the LED is not facing the TV etc. it will bounce ...
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1answer
101 views

how do I connect a BN59-01006A samsung rc to an Arduino Uno IR receiver module

I have this remote control (BN59-01006A): and this IR receiver brick(Keyes IR receiver): I managed to connect the IR brick to my Arduino Uno. I downloaded this library and used a basic Arduino ...
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1answer
190 views

Keyes IR receiver with Arduino

I'm trying to learn how to connect an IR Receiver to an Arduino Uno. I got this IR receiver as a gift, and I'm having a hard time finding a spec. sheet anywhere online. The module looks like this: ...
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2answers
80 views

How can I toggle a astable 555?

I'm using a NE555 running at 37KHz to generate a carrier frequency for transmitting IR. Now I need to modulate it using OOK, I know that are various ways to toggle it. The most obvious way is to ...
2
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1answer
83 views

Convert TV Remote To NMT Remote

I've got a 4 year old LG TV remote control, which I recently took apart. I've also got a Popcorn Hour A-100, without the original remote. So my question is - given that I don't care about the ...
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1answer
62 views

got a too low VCE on a Infrared Phototransistor

I used an Infrared Light Emitting Diode QED123(VF=1.7V) and an Infrared Phototransistor QSD123 in pair. I learnt from QSD123's datasheet that its VCE(SAT) under IC=0.5mA is 0.4V max. But the VCE I ...
4
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3answers
169 views

Reverse-engineering IR check bits/CRC

I'm trying to build a simple Arduino-based IR remote control for a cheap toy IR-controlled helicopter (same as this one - it's called "Diamond Gyro" or "Diamond Force"). I've decoded the IR protocol ...
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1answer
378 views

How do IR sensors detect color? [closed]

I'm trying to make a line following robot using Arduino. I have searched the Internet for information on how to build it, but a few questions remain: How does an IR sensor detect colors? What ...
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2answers
318 views

Help with or hints for decoding an IR protocol

Some time ago I bought a simple and cheap little IR-controlled toy helicopter (same as this one - it's called "Diamond Gyro" or "Diamond Force"). For fun, I've been looking into controlling it via an ...
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67 views

Want to convert IR audio from in car system to bluetooth

In my car (Renault Espace) I have a DVD entertainment system. This system uses wireless headphones with a 2 channel IR audio technology. I want to connect the audio from the DVD entertainment system ...
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1answer
41 views

How IC encoder ΤΧ-2, encodes signals?

I 'm trying to figure out the way IC encoder ΤΧ-2, encodes signals. The procedure, if I am correct, is: Receives input data (DC signals). Generates digital pulses, via an internal oscillator. a. in ...
4
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2answers
173 views

Is it feasible to use fiber optics to increase the detection area of an infrared photodetector array?

I'm working with an infrared emitter/detector system based on an Osram SFH 4545 IR LED collimated through a 40mm dia, 120mm fl lens and a sensor array based on three separate sets of three Vishay TSOP ...
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1answer
85 views

Identifying and correctly using this component

I have the two components, which are in the picture below. I have a couple of questions. The first one is, how do I make sure that the IR LED detector is working? I tried searching for specs, but the ...
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4answers
486 views

PIR sensor (with open collector) + Arduino - anomalous results

I'm attempting to get a PIR sensor working with an Arduino Duemilanove. Nothing fancy yet, just attempting to get accurate high or low values from it first. The PIR sensor was bought from Cool ...
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0answers
68 views

IR transistor requires 1 Megohm resistor

I have an IR transistor to detect reflected light from an IR LED. This is in a voltage divider configuration. The problem is that to get a reasonable sensitivity I have to use a 1 MOhm resistor(!) ...
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2answers
788 views

Wiring an IR phototransistor

I'm a beginner at electronics. I'm trying to use this Infrared phototransistor and my Arduino together: http://www.maplin.co.uk/infrared-transmitter-and-receiver-10379 I'm using the popular library ...
5
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2answers
286 views

Low cost and accurate Sensor technology for detecting objects at short distances (<5m)

I am interested in a project which aims to detect any object within short distances, at various directions. Hence, the sensor should be highly directional, fairly accurate and if possible, compact. ...
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390 views

IRDA Through Audio Jack

I'd like to know if it is theoretically and/or practically possible to enable a smartphone (iOS or Android) to communicate with another device via IrDA (IrCOMM) using a simple infrared transceiver ...
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1answer
48 views

Best cover for IR proximity sensor?

What would be the best type of cover/front panel for a circuit board that has an IR proximity sensor consisting of an IR LED and an IR photdiode? Would regular plastic/plexiglass work or would that ...
5
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1answer
145 views

Detect Hama IR Remote Protocol

I'm working on an universal receiver and I'm not able to detect what protocol is used by the Hama VRC-1100 MCE Remote. The signal is this: The Time/Div is set to 2 mS and the distance between a ...
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2answers
57 views

IR confirmation

I want a system to send a signal by IR, to turn on a TV. I need to check if the TV is really on by receiving a confirmation. Is there a way to send the signal, and send an other signal from the TV to ...
1
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0answers
112 views

Replace TSOP 1738 with 3.5mm jack [closed]

I am trying to use Lirc on Ubuntu to control XBMC. I need an IR Reciever and found this: Serial Port Receivers. How could I replace the IR Receiver with a 3.5mm jack so that I can directly plug it ...
0
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1answer
115 views

Record and recognise IR Code independently from Protocol

I'm trying to build a device that is able to learn the code sent from an IR Remote when a button is pushed and that is able to subsequently recognize it when received. I need my device to be ...
3
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1answer
141 views

Universal IR Receiver for TV Remotes

I'm trying to build a device that is able learn a command from a TV IR Remote and recognise when this command is sent to it. I've see that the most common protocols used are NEC and Philips and that ...
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3answers
131 views

555 Timer Triggering Too Easily

I've got a 555 timer being powered by a 5v rail that is isolated from the 3v rail running a motor driver, which runs a motor. The 555 is only supposed to fire when it gets the signal from a 38khz ...
0
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1answer
96 views

Detecting Multiple Lasers

I'm looking to design a game where players fire a gun at a target using LASERS or IR. The target only registers a hit when a certain amount of players (say 3) are hitting the target consistantly for ...
3
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2answers
141 views

tsop348 infrared receiver

Why do they tell that • Burst length should be 10 cycles/burst or longer. After each burst which is between 10 cycles and 70 cycles a gap time of at least 14 cycles is necessary whereas I ...
4
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1answer
291 views

Can I use a 940nm laser diode for a remote control?

Most TV remotes use 940-950nm LEDs. The TV-B-Gone uses a combination of short ranged, wide output and long ranged, narrow output LEDs, to have a combination of easy mark hitting and longer range. Say ...
2
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1answer
858 views

How to get consistent codes from IR receiver module TSOP1738

I'm doing some experiments with a TSOP1738 receiver module. I picked up a small 'remote control' (aka an IR transmitter) from my car audio system and I'm trying to send some command over to a robot. I ...
1
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3answers
492 views

How to make a wired input IR demodulator?

Objective: I'm trying to make a wired infrared input for a microcontroller. Incoming signal would come from a remote control device that has an IR emitter output jack. I believe that all I need is ...
2
votes
1answer
300 views

Arduino IR remote NEC control

I'm trying to build a generic IR remote controlling device using an arduino. I've done some investigation to discover the IR protocol used by my NAD SR8 remote controller. I've connected a simple ...
3
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1answer
262 views

PIR Detector Controller IC

Honestly, I have a good deal of questions so this may not be for the faint of heart. I will do my best to ask them in a logical order with specific language. I really appreciate the helpful ...
0
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1answer
58 views

Implement IR protocol using only one timer

I want to implement the transceiving part of an IR protocol for my Samsung remote on an nRF54822, using an ARM Cortex M0 core. The protocol is very much like the NEC Protocol, and is using a carrier ...
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0answers
176 views

Create own bluetooth device: do I need a micro? + others

I'm in the design stages of a bluetooth device I want to create but I have a few questions. I'm a BIT(literally 1 bit, 01) familiar with electronics, I can program though so keep that in mind. My ...
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2answers
309 views

Infra-Red via Arduino (Two IR Leds)

Good Day, I am trying to build an IR system that works via the Arduino. So far, it works great. However, I want to have one IR Led on the back of my device and one in the front. However, the Arduino ...