frequency of IR reciever

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bhuvaneshnick
 
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frequency of IR reciever

Post by bhuvaneshnick »

i am working on arduino.My remote control works on 40khz and it send 12 bit of information.So does 40khz mean i can send (approx)40000 bit per second,am i right or wrong.Thank you in advance

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adafruit_support_bill
 
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Re: frequency of IR reciever

Post by adafruit_support_bill »

Not sure which receiver you are referring to. The receiver we stock is designed to detect a modulated 38KHz signal: http://www.adafruit.com/products/157

It does not receive data at 38K bits/second. See this tutorial for details on how these sensors work: http://learn.adafruit.com/ir-sensor

bhuvaneshnick
 
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Re: frequency of IR reciever

Post by bhuvaneshnick »

yes,we modulating the signal.Right.i have an obscure vision on mudulation ever since i heard that term.Actually,instead of on IR light for certain time to indicate one.we are on and off the IR light.MY question is for ON it should blink for 600us means,how many clyces on and off ,does it take for 38khz .does it take completely 38 cyles for one on and off.please explain me.Thank you

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adafruit_support_bill
 
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Re: frequency of IR reciever

Post by adafruit_support_bill »

Please read the tutorial: http://learn.adafruit.com/ir-sensor
It explains how the 38KHz IR signal is modulated.

bhuvaneshnick
 
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Re: frequency of IR reciever

Post by bhuvaneshnick »

thanks now i understand

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