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.
-2
votes
0answers
22 views
Building an Arduino Universal IR Receiver [duplicate]
I am trying to build a universal IR receiver on Arduino. I was thinking of using this external IC for demod+filtering of signal.
http://www.datasheetcatalog.org/datasheets/208/301092_DS.pdf
However, ...
0
votes
0answers
37 views
Infra-Red with arduino [closed]
Good Day,
I am trying to build a universal receiver transmitter with an arduino. Basically, I want to understand first how the IR protocol works on normal remotes. Is the signal transmitted modulated ...
3
votes
2answers
82 views
Point-to-point range measurement using an IR receiver
I am interested in using an IR receiver (as opposed to a standalone PIN photodiode or phototransistor) to measure distance/range. I thought I had found an appropriate match in Vishay's TSSP4P38 ...
2
votes
2answers
57 views
Arduino IR practice vs. application circuit on 1838 datasheets
There is an explanation of wiring up IR remote controllers for beginners at arduino-info.wikispaces.com/IR-RemoteControl, which suggests wiring the output pin directly into an Arduino pin. I've tried ...
4
votes
2answers
61 views
How should I wire up the circuit to connect a TSOP4838 (Radio Shack 276-64) infrared receiver to an Arduino?
Beginner question on datasheets basically.
I have this part, and am working from a tutorial for the code here, but am unsure exactly how to wire up the circuit and what risk I might be at for ...
1
vote
1answer
134 views
How to amplify 3.3 volts to 8-9v?
I'm a total newbe in electronics but I like to make things up. All I want is to turn on a "black box" of leds (that operates at 8-9v) when my motion sensor is activated. The problem I've got is that ...
0
votes
0answers
54 views
11Khz IR receiver
I would like to make a receiver for this controller
http://hardware.segakore.fr/en/controller_18.html
I placed the controller in front of a photodiode, and it seems that the carrier is 11KHz instead ...
2
votes
1answer
92 views
Can I electronically trigger a PIR motion sensor?
I would like to trigger a PIR sensor using an infrared LED. Is that possible? My goal is to simulate motion in front of the PIR, when there otherwise is none. I tried using a handheld remote ...
0
votes
1answer
154 views
ATTiny 85 + shift register + ir sensor
I had the ATtiny working with the shift register, but when I added the IR receiver to the code the shift register did not work as desired.
I have a shift register connected to 8 LEDs and controled by ...
1
vote
0answers
60 views
ATtiny85 + shift register + IR demodulator [duplicate]
I had the ATtiny working with the shift register, but when I added the IR receiver to the code the shift register did not work as desired.
I have a shift register connected to 8 LEDs and controled by ...
1
vote
0answers
431 views
Arduino IR Transmitter & Receiver w/ LEDs Flickering Issue (What's wrong with this circuit?)
I have an Arduino Uno connected to two IR transmitters and respective receivers. Basically, when one of the receivers detects a beam break, I have a strand of LEDs display a pattern. This all works in ...
2
votes
2answers
67 views
Realizing an flexible, but fault tolerant, infrared communication chain
The task fell on me to realize a wireless, daisy chained communication system. The communication must be wireless, esp. via infrared diodes. The end of the chain is connected to a PC (wired).
The ...
0
votes
1answer
122 views
Wrist-based Pulse Oximeter
I'm quite new to EE. I'm trying to design a wrist-based Pulse Oximeter. I have looked through a lot of literature and short listed these:
PhD thesis using 6 LEDs
A Single-Chip Pulsoximeter Design ...
0
votes
2answers
113 views
IR Remote, use a relay to send on and off pulses
I have a little problem. I'm using the raspberry pi to send a output signal from the GPIO pins to activate / deactivate the relay. I have a IR remote, when i short the two "connectors" on (for example ...
1
vote
1answer
151 views
IR remote output signal without IR Led and TSOP
I have IR receiver module based on AVR + TSOP, it gets IR signal from remote and passes it to RF tranceiver.
Now I want to make some improvements and try to connect output (IR Led pins) of IR remote ...
2
votes
2answers
112 views
Is there any circuit like “Burglar alarm ” or “Proximity dector” with a range of 100 meters
I am in search of a circuit which works with
IR or RF wave with a range of 100 meter to detect proximity or burglar.
I need this to detect the presence of human or animals
One thing important is i ...
1
vote
1answer
164 views
How to test if a Near Infrared Emitter and Photodiode still working?
I suspect that my NIR emitter and Photodiode are not working.
Emitter http://www.thorlabs.com/thorproduct.cfm?partnumber=LED1450E
Photodiode http://www.thorlabs.com/thorproduct.cfm?partnumber=FGA20
...
0
votes
1answer
516 views
IR Arduino Transmit n Receive
I am using digital IR Receiver Module and digital IR Transmitter Module connected each with different Arduino Uno. How can I transmit data like "1234" to the receiver and display data on LCD? This is ...
0
votes
3answers
115 views
Making a flashing LED magnetic earring
I am interested in finding out if it is possible to take a simple flashing LED magnetic earring (sold as novelties all over) and either converting it or using the housing to then power an infrared LED ...
1
vote
1answer
131 views
How to choose an IR receiver?
I am working on a project that requires an IR receiver module to detect particular buttons pressed from a SONY Stereo Remote. I have a regular kind IR receiver that looks like this:
The problem ...
1
vote
2answers
113 views
using the Wii Sensor bar in a project
I'd rather not destroy any of my Wii kit, so I'm wondering if anyone knows what voltage I should drive the Wii Sensor bar with if I wanted to use it as an IR transmitter for a project.
If you're ...
1
vote
1answer
199 views
Arduino infrared problem with universal remote
I am playing with Arduino and Ken Shirriff's IR library. I am trying to control Sony audio receiver using codes I found on the net.
Everything works OK, I am able to control the device by sending IR ...
1
vote
0answers
125 views
Is there an IR receiver with external IR diode?
I need an IR receiver that can directly be used with a microprocessor - the TSOP series from Vishay seems to fit well and there are enough tutorials and software libraries to make use of it. ...
1
vote
1answer
107 views
AIC1863: How to use this MC to detect the presense of IR transmission?
I have build simple prototype on STM32 ARM Cortex microcontroller trying to understand the usage of AIC1863 IR Preamplifier for Remote Control System (see the handmade PCB on the breadboard).
MCU ...
2
votes
2answers
139 views
IR Reflectance Sensor for a Wheel Encoder - Analog or Digital?
I'm in the process of building wheel encoders for my robot and have come across 2 different IR Reflectance sensors.
Analog
Digital
I'm trying to find out what the potential benefits or drawbacks ...
-2
votes
1answer
148 views
Design of a system to measure the speed of a falling simulated raindrop
I would like to know if using an IR emitter and a photo-transistor would do the job. Here are the specs of the photo-transistor.
Also I'm using the Arduino Uno board; any tips on how to program it ...
0
votes
1answer
253 views
Arduino beacon for IR Seeker v2 (Mindstorms NXT Sensor) - Pulse IR at 38Khz Carrier and 1200 Frequency
I hate to ask a question like this, that is kinda just like "give me the code" but seriously. I've tried reading up on it everywhere, and I just don't seem to get a thing of having both a carrier ...
-3
votes
1answer
151 views
What wavelength do I need for a IR pen?
For building a wiimote whiteboard what wavelength should my IR LED be? Would a 940nm one be okay?
I am planning on using this software: http://www.uweschmidt.org/wiimote-whiteboard
P.S. My specs ...
-1
votes
1answer
197 views
Should I use a resistor in this scenario?
I am building a IR pen and wondering if I need a resistor for this. Here is my specifications for my IR LED:
Forward Voltage: 1.2 V
Forward Current 100 mA
So on and so on. I am powering it with a ...
-3
votes
1answer
183 views
LED Array Resistor Size + Power Source [duplicate]
Possible Duplicate:
Calculating resistor value and power rating for LED driving
Infra Red LEDs - Voltage Advice
I need to make an array of IR LEDs, just want to check what size resistors ...
3
votes
1answer
671 views
IR Audio Receiver and Transmitter
Let me start by saying that I am a newbie on this, trying to do some hobby stuff. I am a software professional trying to interface with hardware (maybe getting into Arduino).
Using this information ...
2
votes
2answers
245 views
IR rays over carrier frequency of 34Khz?
How is IR rays that have carrier frequency of ~1014 Hz generated by GaAs in remote control carried over carrier frequency of 34Khz to the sensor?
5
votes
2answers
378 views
Underwater distance measurement/Sensing
I am working on a project from University which includes a ROV. I am trying to come up with an easy way to create a Distance Sensing system, which doesn't require a lot of work. something very simple ...
2
votes
4answers
277 views
Infrared spotlight project, need x50 resistors. How many ohms what type to use?
Infrared spotlight project.
I have a PCB BOARD set up for 150x 5mm IR LED
1.5-1.6 forward voltage.
Forward current is 60 mA
150 LED’s are divided into 50 groups (3 LEDs each + 1 resistor)
What ...
3
votes
2answers
568 views
Reading an IR signal and running one of 5 motors
Before you judge me, I'm fairly new to electronics besides the very basics, so be gentle. However, I'm quite proficient with computers at a high level; I'm decent at writing code, and have experience ...
2
votes
1answer
76 views
Why is it only one of four batteries (Li Ion) is drained?
I have a programmable TV remote control ( a Marantz I've had since 1999 or longer if it matters), it uses 4 AA batteries. I often find (at least when I use Li-Ion, non-rechargeables) that when the ...
0
votes
2answers
112 views
why could i see IR light in a camera? [closed]
Usually we are not able to see infrared rays with our naked eyes.
But we could see it when we watch it through a digital camera (or mobile camera).
Why it happens?
2
votes
1answer
217 views
IR Thermometer Design
I'm working on an IR contact-less thermometer. I am using Diana Friedman's paper as a general guide. I'm planning on using a circuit similar to the one presented in figure 10.
I'm planning on using ...
0
votes
2answers
205 views
IR LED (VSMY7850x01) 850nm to 750nm
Currently I am using VSMY7850x01 IR LED which is 850 nm this IR LED works perfectly for my project however I want to change 750 nm for optimal quantum efficiency of my lens which is in the 750 nm, I ...
0
votes
1answer
46 views
Connect TSOP to prolifc serial
I have a prolifc USB to serial cable that I want to use to recieve infrared signals coming from a TSOP Sensor
I saw it is possible to connect a classic rs232 connector with TSOP here.
How can I ...
-1
votes
1answer
110 views
Motion Detection Sensor [closed]
I want to create a simple Arduino-based motion detection sensor system. I'd like to put it behind some sort of covering for protection from everything going on around it. What type of sensors and ...
1
vote
1answer
345 views
IR-Receiver signal almost constant
I have followed the tutorial from Makezine about an Infrared heart-beat sensor, and I have essentially used the same components listed on the video (that is, the same resistors and the same IR Emitter ...
1
vote
1answer
132 views
Unexpected pulses in the output signal from IR Detector
I have a Sharp GP1UX311QS IR detector connected to a msp430 launchpad. I wrote a small bit of code to read the output signal from the detector and print the on/off times. However, without emitting any ...
0
votes
2answers
831 views
IR LED - phototransistor problem
Pardon my noobness. I'm trying to set up a simple IR LED - Phototransistor pair but am having difficulties. My setup is just as in the following link, except my resistor values are 1K.
...
1
vote
1answer
184 views
How to re-generate a previously saved SIRC protocol waveform?
I am trying to replicate the remote control for my Sony home theater system. I started with anaylzing the demodulated signal of power on button using a TSOP1738 IR demodulator. It looks like this:
...
0
votes
0answers
278 views
Arduino Infrared Problem
I just got an Arduino Uno board a few days ago and bought the Parallax IR receiver part # 350-00014 and connected it exactly how it says on this other forum. Now when I get the serial monitor open I ...
0
votes
2answers
114 views
Buspirate Logic Analyzer Mode Issue
I am new to the logic analyzer mode of Bus Pirate, so to play with it i connected channel 3(MOSI) line to the output of an TSOP1708 IR decoder to see if the capture came through.
However when I ...
2
votes
2answers
321 views
How does the Microsoft Surface table detect objects?
I saw that the Surface table (now called PixelSense) detect objects.
The strange thing is that it's basically an IR screen with LCD on bottom.
How does it "scan" them then?
Here's a video
...
10
votes
6answers
535 views
Ideas to measure 2D position of an object constrained to X-Y plane
I am working on a project, and an aspect has come up where I would like to measure (track continuously) the X and Y position of an object across a 2D plane. The object is moved by a person, with the ...
1
vote
1answer
114 views
Wirelessly activate devices using light weight and low-power solution
I have several circuits which I need to turn on and off wirelessly.
The rules are:
They are placed inside a transparent small box (about 50x50x50 cm)
The control unit\transmitter can be placed ...
