IR Remote Control - MWFTR

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IR Remote Control - MWFTR

IR Remote Control - MWFTR

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Sony Protocol –Bit Reading Scheme“1” : 1200us“0”: 600 usSequence1. Detect <strong>IR</strong> for LOW (START)2. Wait until <strong>IR</strong> goes to HIGH (Separator)3. Wait until IT goes to LOW4. Wait for 120us5. Check <strong>IR</strong> if it goes to HIGH⌧If Not, Increase a counter by 1 and go to 4⌧If High• Count8: “1”• Go to 3 (to read next bit information)9

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<strong>IR</strong> connection DiagramPORTB: OutputPORTD: OUTPUTPORTC: INPUT8

Sony Protocol –Bit Reading Scheme“1” : 1200us“0”: 600 usSequence1. Detect <strong>IR</strong> for LOW (START)2. Wait until <strong>IR</strong> goes to HIGH (Separator)3. Wait until IT goes to LOW4. Wait for 120us5. Check <strong>IR</strong> if it goes to HIGH⌧If Not, Increase a counter by 1 and go to 4⌧If High• Count8: “1”• Go to 3 (to read next bit information)9

Page 1 and 2: EECE416: MicrocomputerFundamentals
Page 3 and 4: Simple IR ApplicationIR Remote Cont
Page 5 and 6: IR ModulationModulation: To make si
Page 7: 12-Bit of InformationSONY Protocol5
Page 11: IR Coding Structure11