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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97 views

Beam Angle vs Viewing Angle

I am looking at the product specs for an IR light and see that it has: Beam Angle: 50 deg Viewing Angle: 25 deg What is the ...
2
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1answer
51 views

Converting Pronto hex codes to raw on/off pulses

I'm really just getting my feet wet when it comes to IR protocols and IR codes in general, so my knowledge and understanding may be a bit shaky here. I am a programmer and am trying to create a tool ...
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2answers
174 views

Transistor Ohms

I've built the circuit in the schematic below to control my TV, the D1 and D2 LEDs are the two mini LEDs from this IR Extender: I've cut it below the female headphone jack and I'm using my ...
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0answers
65 views

Maximum Ohms for IR LED and transistor

I bought a cheap IR extender and I'm trying to use the small sticky cases to control my TV using a Raspberry Pi. The extender has two "heads" with a small IR LED in it and they were connected to the ...
0
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2answers
81 views

Why is IR Transceiver transmitting/receiving rubbish?

I am trying to interface two microcontrollers wirelessly using IR transceivers. The microcontroller I'm using is ATMega164PA running on a 3.3V supply at 8MHz and the transceiver is TFDU4101-TR3. I am ...
0
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1answer
37 views

Micro Controllers to control Solenoid valves upon receiving signal from PIR Motion Sensor

I am using a PIR Sensor of Sparkfun(Model 8630) to detect human's presence in washroom. If there is no human presence in an interval of 30 minutes, the Solenoid Valve connected to pipe line in the ...
4
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2answers
417 views

Robot following you; what's the best way?

I built a human-sized robot that can follow anyone wearing an IR beacon. It works quite well indoors and it's quite precise, but outdoors it is completely blind due to sunlight infrared. I have a ...
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1answer
66 views

Can an IR camera be used in broad daylight?

I am wondering if it is at all possible to have an IR camera that can be faithfully used in broad daylight. I have already seen this question here, but I am looking to understand if a full blown ...
2
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2answers
91 views

Can I use this IR Transceiver for communication and obstacle avoidance?

I am building two robots. For communication and obstacle avoidance I am using Infrared. I bought this IR transceiver TFDU4101-TR3 (http://www.farnell.com/datasheets/1675739.pdf)which I thought I could ...
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0answers
82 views

Poor man's IR obstacle sensor make sense(improve) from signal under daylight

I'm talking about this kind of sensor: Question and then long description: can I do something to improve their blindness in front of window? At least for detection of object in front of the robot, ...
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1answer
53 views

Need Superbright Infrared Emitter [closed]

I need a superbright infrared emitter(800nm to 1000nm) with a 90 degree horizontal and 4 degree vertical field of view that will be clearly visible 100 meters away. And it needs to have a rise/fall ...
0
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1answer
47 views

Which schematic should I use with CNY 70?

I have tried this three schematics (pictures below), and they all seem to be working mostly the same. So I can't choose which one to use, and what are the advantages/disadvantages. Any ideas ? P.s. I ...
0
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1answer
46 views

What is the wavelength of an Itron C1S IR LED?

I'm trying to find an appropriate IR Phototransistor for an Itron Centron C1S Meter. But I can't figure out exactly what is the wavelength of the IR transistor used by Itron. Do meters have standard ...
0
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1answer
88 views

Use a photoresistor to read an IR LED from an Itron energy meter

I want to read my meter at home with an Arduino board. My meter, an Itron C1S, has an IR emitter that pulses once (10ms width) every Wh. I want to know if it is theoretically possible to use a ...
0
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2answers
96 views

IR proximity sensor

I have built an IR proximity sensor using a normal 940nm IR LED, Tsop 4856 kHz IR photodiode. I have used 555 timer to generate pulses to the IR led. the circuit is working correctly as far as I know. ...
0
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1answer
49 views

3 Pin IR Reciever Schematic

I have been looking for this on google and couldn't find it, what does the schematic look like for a 3 pin IR reciever (ground, +5v, out)?
2
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3answers
278 views

Sequence multiple IR remote commands (button presses)

A bit of a story here: I would like to be able to quickly and easily turn on/off captioning on the cable TV box. Normally this would require 10(!) button presses. It's hard to be sure, but I expect ...
1
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1answer
45 views

Detecting ball moving between IR pair and handling ambient light changes

I plan to use the SEN-00241 IR Emitter and Detector pair to detect a ping pong ball moving fast between them. I understand I could watch for voltage changes to detect this passing object, however how ...
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1answer
52 views

Difference between infrared heating tube coatings?

I'm converting a toaster oven to a SMD reflow oven and have found the thermal momentum of the resistive elements to be a problem (standard dark-grey type). So I've been searching online for some ...
2
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1answer
44 views

IR receiver part interchange

I've got an old stereo that doesn't have a remote control. There was a model that did, and after looking at the service manual it looks like I just need to populate a PCB with an IR receiver to add ...
1
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1answer
139 views

IR proximity sensor for automatic spraying

I am a beginner in field of circuits, so excuse me for my amateur questions. Let me explain my task: I have to build a low cost proximity sensor for a sense and spray device. I have read various ...
2
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0answers
110 views

Helicopter rotor blade system detection approaching objects

I am working on this project to detect anything that is entering the zone of RC helicopter blades (around 10cm diameter) region and stop the rotor. It needs to detect any solid object so metal or ...
2
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2answers
86 views

Creating a large motion sensing plane

I want to try and create a "motion sensing plane" where users can have contact points (their hands) detected when it passes through an invisible plane. Think of it like a giant tablet touch screen, ...
0
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1answer
85 views

Positioning a quadcopter using IR signal

I need to get an autonomous quadcopter above a bucket (60x40 Cm) and deliver a payload inside. The idea is to get near the bucket using the GPS. Then guide the copter by putting some IR emitters ...
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1answer
108 views

Make sure that this circuit is safe

I am going to feed 5V unresisted in through pin 3, ground out pin 2, and then read the output from pin 1. Would that be correct for this IR sensor? Also is this analog or digital output signal?
0
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1answer
84 views

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? [closed]

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, ...
0
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1answer
111 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 ...
0
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1answer
73 views

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

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 ...
0
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1answer
66 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
90 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 ...
0
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2answers
40 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
96 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 ...
0
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2answers
184 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
144 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
85 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
74 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
88 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 ...
0
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2answers
61 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. ...
0
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1answer
115 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
105 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 ...
0
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1answer
53 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 ...
1
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1answer
147 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 ...
1
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1answer
358 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
91 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
98 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
80 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
223 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
790 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 ...
10
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2answers
380 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 ...
0
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0answers
99 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 ...