Topic: Infrared Transmitters Work
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What is infrared transmitter?
( ¦in·frə¦red tranz′mid·ər ) (electronics) A transmitter that emits energy in the infrared spectrum; may be modulated with intelligence signals. Read More »
Source: http://www.answers.com/topic/infrared-transmitter
Why use a 555 IC to power an infrared transmitter?
The 555 is a timer and oscillator chip capable of sourcing and sinking 200 milliamperes, and is useful for pulsing an infrared LED to power an infrared transmitter. It can be pulse width modulated or otherwise controlled via the various con... Read More »
Source: http://wiki.answers.com/Q/Why_using_IC_555_for_IR_Transmitter
How do you fix infrared transmitter interference from LCD TV?
I have a LG tv that I had to turn the back-light above 70 to use a remote near it. In order to use the remote with the back-light set at 20 for a dark room, all I needed was to lay a piece of paper over the IR receiver of the device that wa... Read More »
Source: http://wiki.answers.com/Q/How_do_you_fix_infrared_transmitter_int...
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Infrared Transmitters Work
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The transmitter needs a audio cable run from the trans. input to the TVs audio line out connectors A diagram for this should be in the packaging.
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Source: http://wiki.answers.com/Q/How_do_I_hook_up_a_Radio_Shack_wireless...
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Source: http://answers.yahoo.com/question/index?qid=20091027224033AArNkSr
They have nothing to do with modems. All they are are an IR LED on a bit of cord, to a 3.5mm plug, usually anode to tip, cathode to sleeve. They are used for remote extender systems to re-transmit the IR to what they control, or for standal...
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Source: http://answers.yahoo.com/question/index?qid=20111109095204AAiXuN3
You probably want to use an RF transmitter, rather than IR. You likely want to make your own pedometer. They are really just a stride sensor and pulse counter. You could code the latter in a micro, and have it programmed to send a pulse or ...
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Source: http://answers.yahoo.com/question/index?qid=20110928075103AA1pvxg
Three reasons: 1. There is a lot of dc background IR (e.g. from the sun, from incandescent lamps). So by using a frequency, you can use a frequency-selective filter to respond only when that frequency is detected. The frequency serves as a ...
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Source: http://answers.yahoo.com/question/index?qid=20090911203700AAYPQoH
It depends on how the transmitter and receiver are oriented. If they face in the same direction (e.g. DigiKey part no. 475-1115-1-ND), that would be a retro-reflective sensor (which has been already mentioned above). They are also often cal...
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Source: http://answers.yahoo.com/question/index?qid=20081215150803AAqzjsb
