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RC5 Philips protocol Generation and Reception

Discussion in 'General Electronics Discussion' started by AmitK, May 12, 2010.

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  1. AmitK


    May 12, 2010
    Hey Pals,
    My aim is to control TV (RC5 compatible) using microcontroller 89C61X2....
    I tried...

    1. Generating Code using Controller and carrier of 36 KHz using IC 555. I could generate the theoretical waveform but TV is not responding.

    2. when I saw remote Control waveforms on DSO.. i couldnt see the carrier.. why ? how could it be possible.

    3. I studied the IC PCA8521.. but couldnt really understand.. how command and device selection is done..

    Is there any other way I can do it.... any IC or ckt.... PLZ help me GUYS....
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  2. LTX71CM


    May 23, 2010
    With an onboard timer of your uC generate the carrier signal and gate it with the control code for your make/model of TV.

    When I scoped an RC5 signal I had to use one timebase to see the RC5 data and a smaller one to see the carrier, try that.

    A schematic and/or source code would help to give you a more specific answer.
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