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Arduino Forum Can a RF signal be replicate from an audio capture ?
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  • capture
  • signal
  • audio
  • rf
  • data
  • decode
Related

Can a RF signal be replicate from an audio capture ?

redgreenblue
redgreenblue over 8 years ago

Hi guys,

 

I'm still trying to decode a 433mhz / (16 channel DIP switch) remote signal.  I got 3 remote to control many devices (up to 16), it's anoying cuz I have to get track of all 3 remote to use 3 devices. Chances are high to fail, cuz everybody lost a TV remote once in a while, just imagine with 3 tv remotes!!

 

My goal is to capture the 16 channel and embedded them into a single arduino remote.

 

image

 

Bassicailly this remote came from China and I cannot get the signal code decoded by RF24 module and Arduino Uno but thanks to Neil I've decoded all the other remotes!!!

 

Becuz I don't have any Oscillator, the only way I can 'capture' the signal is with a 1/8 audio jack and a audio recording software. It work and I can see that each channels have differents 'sound/signal modulation. I've seen this on many forum but I haven't been able to decode my audio channel, since it don't seem like anything people are getting on thoses forums...

Decoding RF link using a PC soundcard | Hackaday

 

Here a waveform exemple, I got.

image

 

 

 

If this method is right, what are the next step to convert theses audio informations to arduino data ?

 

Best regards.

Seb

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  • redgreenblue
    redgreenblue over 8 years ago

    Here the spectral view from Audition, this should be the way to do it. Still I'm not sure...

    I've been trying to do pretty much the same as that but without the USB dongle or without an Oscillator.

     

    H4ck33D – hacking a 433MHz Remote Control | Mighty Devices

     

    image

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  • redgreenblue
    redgreenblue over 8 years ago

    Here the spectral view from Audition, this should be the way to do it. Still I'm not sure...

    I've been trying to do pretty much the same as that but without the USB dongle or without an Oscillator.

     

    H4ck33D – hacking a 433MHz Remote Control | Mighty Devices

     

    image

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