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79 Threads found on Infra And Red
hi actually i am doing a project in which when an obstacle comes in between infra red rays it should activate a micro controller. the micro controller in turn activates a video camera and a gsm module. the camera takes a video for 10 seconds and the gsm module needs to send this 10 sec video clip to 3 mobile numbers. this is (...)
can I use a 940nm infrared led detector with the 850nm and 880nm emitter infrared led ?
This all sounds very answer to your questions is
Do you mean the peak power of the infra red? Measure the power going into the diode, look up the manufacturers spec. Compensate for any focussing optics and you have your answer. Frank
I see a Wireless Tachometer. Also an infra-red Tachometer. Both on Ebay. What 'pickup' do they have? I thought I'd make one, if it's not too complex. Thanks for any advice (other than buying one) that I may use.
i want to make wireless IR sensor using 8051 and zigbee can any one help me in circuit and coding ,, i am going to develop an parking slot detector using IR sensors for this project i decide to use 8051 ,zigbee , . there is an zigbee connected with computer which is used to get status of other sensors and than computer will updat
usually ultrasonic sensors are used for this purpose , but i guess infra red can be used too . check this sample code an di helps it would help
They look very much like the infra red photo diode you see in some mice, except they have a clear case and the infra red ones are black. I think that they are definitely photo diodes though.
I think you will use the 555 as Pulse Width Modulator and put modulation into pin 5 of the 555, and yes you could do it with small fm tx/rx or maybe infra red or any analog transmitter from any audio source..just have to couple pin 5 and some level adjustment
Hello sir i want to know about the effect of infra red rays over house flies mosquito etc etc Are they come close to that or try to leave the area of effect ?
Eight channels you could try Googling TV remote control or Radio Control models circuits (and drive an infra red LED rather then a transmitter). Frank
Hello, my project is to communicate with microcontroller by uart protocol through ir.I succeed in it quite nicely.But the distance is very small,like 6 inches. So how can I increase the distance.I am using 16f73 for remot (tx) & 16f877a for Rx.I am also confused about selecting perfect boud rate,currently using 9600.I am sending characters,i.e. '
Hi, How can I test an enfra red remote control receiver (3 pins: - + S)?
Hello, I wish to use this inductor on our PCB, but the pad is "underneeath" it, and we won't be able to hand solder the you think it will be ok if i extend the pads so that they appear outside of the inductor body so that i can hand solder them. We dont have infra-red soldering equipment here. (...)
I have this infrared Signal that is +280 dBm and I can receive it anywhere on Earth, anytime during the day, but you might have a hard time generating this level. It is called the Sun. So you must consider all sources of noise your signal level, bandwidth and received signal after inverse square loss (...)
My infra red sensor looks similar to this Okay. Got it. I should be using a breadboard.. Hi, Don't forget to use the Arduino site / Playground / Forum - they have an amazing array of proven projects and
jam that wave, I thought i will send infra red radiation from a LED continuously so that it may interrupt the signal that was sent by the tv remote... To jam IR TV remote, you should generate 38KHz pulse and drive IR LEDs. Continuously powering IR LED wont jam the signal.
Hi guys, I have a question regarding infra red. What is the distance of infra red transmission depend on? Because device like mobile phone's infra red is just a few cm of distance but the infra red for car locking system can be a few (...)
Hello friends , Can I sense fire using infra red receiver ? Is there any fire sensor with two Pin ?
I have Made light dimmer with 89C52 using RC5 infra red remote VOL+ and VOL- key. RC5 IR interrupt is External Int. 0 timer0 interrupt for RC5 command processing. Zero Crossing interrupt is External Int 1 Timer1 interrupt for trigger TRIAC I am firing TRIAC with PIN 2_7. My program works OK, till the timer1 (...)
You guys are all way over my head in this stuff. I once had a Wireless head set for the TV. I think it was infra-red. It was a pain thought. I wonder now, if there is such a thing as Wireless Headset for the PC? I have a Dell Inspironone. with the small .3 mm Stereo plug. I'm curious because I'm up so late and the wife is (...)
Visit the following links. 3-Channel IR Relay Controller infra red Switch
usually these two are famous protocols 1. RC5 2. SIRCS (Sony infra-red Remote Control) check this DIY remote control based on PIC
there is an IC called HT 12A for encoding and HT 12D for decoding the infra red. search for the datasheet, you can get all the information related to the components u need.
The term "infrared sensors" isn't particularly specific, referring to at least two decades of wavelength and many different sensor types. You should give additional hints about your region of interest.
you need to say what type of receiver. Most are high impedance, you will need a circuit around them. google "infra-red proximity detectors" should find you a bunch. I have personally done one using IR 3-terminal receiver (as found in TV's for remote) and IR LED pulsed at 30-40kHz. These especially don't work with a "DC" level of (...)
hi i am doing my project and developing a remote control, i am using a infra red emiting diode to transmit and a 38kHz infrared receiver module with automatic gain control but the funcional range is about two feet can any one give me a pointer to what the problem might be.
Hello Friends, I have a circuit of a infra red Receiver controlling 1 relay at a time but i want a circuit that will control about 4 relays at a time which can be started/stopped with linked 4 buttons on a infra red Remote. The Circuit and Software(HEX file in text format) for the PIC (...)
ive red few articles about oximeter , I assembled the schematic which i attached here (ox_1.png). It's working but i get strange results after i compared it to other people's results. red LED output and infra red output in attachments. red LED peak wavelength 660nm (...)
dude,go for rf(radio frequency) module based wireless transmission..infra red ,,its old now.. nowadays,projects are mostly based on rf or wifi... google about that.learn simple projects based on them.. experience matters in any field
I read something a while back on using IR filter with a webcam as I was thinking of designing a security camera as someone broke into my shed and stole my lawnmower :-(. The website is infra red Webcam . There are other hobbyist projects in the internet that employ this method.
infra red will be easier and cheaper Nandhu (still you use short hand)
I have this infra red door monitor project and i don't know if anybody have any modification n hand. I was not able to see the right reciever with 3 pins. I was able to see the ones with 2 pins. I f anybody can help me out
Could anyone provide some help on programming PIC 16F 883 microchip to transmit a modulated pulse infra red(IR) LED light with carrier frequency of 38Khz and the data rate of 5 Hz. On the receiving end, the other 16f883 microchip will have to decode and read the infra red pulses. I am (...)
Hi, I have very basic and fundamental question about the TSOP infra red decoder. My question is, what demodulation technique does it use? Is it ON-OFF keying? As I understand a TSOP1738 decoder would demodulate a 38 Khz carrier. But how does it expect the carrier to be modulated? Does presence of carrier mean 1 (...)
Hello I'm developing a photoplethysmograph(PPG). It is very similar to pulse oximeter, but use only the infra red led. I would buy a finger clip probe that i can use in my project. At this moment i'm using a simple IR led and phototransistor for acquire my photoplethysmograph signal but i have very problems. This problems are mainly the (...)
Look at the RC5 infra red data format. That is Manchester encoding. More info here:
no. solid state array's such as CMOS absorb light (visible and invisible), which is converted into photo-electrons; the charge is stored on a capacitance and then read out. Blue light through to infra red works quite well, ultraviolet doesn't work so well. You could use two motorised filters to remove (...)
Can any one help me in making an infra red remote control project using At89s51 microcontroller and sony remot. Please give me the detail decoding of sony remot protocol. a example program written in Keil c51 will be highly appriciated. regards
What is a PIR sensor? What controller will u be using? PIR Passive infra red Sensor Shakeel
I think you can also detect fire with infra-red detectors as well.
Hi..nw i am doing final year project in university technology of malaysia (utm).. my project title is smart traffic light system using fuzzy logic.. my traffic light system is control by PIC (16F877a) microcontroller..and im using infra-red sensor to detect the vehicles.. is it possible i can get the circuit design for this
I want to use infra red remote control to cotrol my room light. I am not expert in programming microcontroller. Can some one help me. Thanks
need help to analysing my project. i make a wireless printer through infra red using AT89S51. this is the program: a. Take the data from the PC and send it through infra red $MOD51 ROM equ 0000H kodepapererror equ 01H kodepaperready equ 02H stb equ P3.2 Busy equ P3.3 ack equ P3.4 pe equ (...)
infrared (IR) radiation is electromagnetic radiation of a wavelength longer than that of visible light, but shorter than that of radio waves. The name means "below red" (from the Latin infra, "below"), red being the color of visible light of longest wavelength. infrared (...)
Hi, I want to do an infrared forwarding, in transmission circuit I used NE555 and I had a signal 30Khz and 1.8V when I mesured it arround infrared diode. I used TSOP1730 to receive the signal, but I did'nt receive anything. What is the problem? It's can be in receiver (...)
here is de circuit for an infra-red jammer and explanation... hope it will be usefull... :D Added after 49 seconds: her is de attachment...
Just to inform you people of how to modify the above webcam to near infra red. I took the webcam apart, and unscrewed the lens holder from the pcb and then removed a small square filter glass from inside the pcb end of the said lens holder and BINGO.... I now have a webcam thats near infra (...)
Please take a look at and How to build a simple but cool IR (infra red) receiver or visit
hi everyone, Does anyone knows were to start searching for developing IR Gas Detecion equipments? Thanks Luiz

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