IR remote control information

[wakaka]

Hi guys, I've found this IR receiver
https://kitsrus.com/pdf/k58.pdf
But wat i need to know is how it actually can receive ANY signal from any remote control??
Wat is the standard freq for these remotes?
I thought different remotes have different IR signal freq. And wat IR receiver module should be use??
Thanks....

 

[budhy]

Re: IR receiver

The article already answer your question:

All modern IR remote control devices produce a continuous coded stream of pulses at 37.9 kHz when any button on the module is pressed. These IR pulses are detected and decoded by a receiver (your TV, VCR etc.) and the appropriate function activated. In our Kit the coded stream is converted into a single pulse and that single pulse is used to toggle a relay on & off. The coded information is lost. Only the fact that a button was pressed on your remote control unit is detected.

The circuit only detect the infrared pulses stream with frequency around 37.9 KHz.
Different remote use almost same frequency, but very different code information modulated on that infrared pulse stream.

 

[wakaka]

IR receiver

icic.....but if i wan to know the modulated info, i need a decoder chip rite? Problem is which decoder is for which remote??How can i find out that?

 

[budhy]

Re: IR receiver

wakaka,
You can get all about IR remote control information here:
https://www.epanorama.net/links/irremote.html