OK, I guess this is because I don't modulate my 1s at 38KHz... 2011/7/24 Sebastien Lelong <[email protected]>
> Hi guys, > > Some progress, but more questions... I've been able to decode IR signals > using TSOP4838, I can clearly identify my two distinct IR codes. I uses INT1 > and 16-bits TMR3 to measure IR length. Values are stored in a array (only > high bytes -- MSB -- values from the 16-bits timer, I think low bytes aren't > relevant, they change on each try). > > Now I'd like to play back these IR codes. I have IR LEDs in my box, I think > I need to add a transistor to drive these IR LEDs. From previous step, I > have a table with TMR3 recorded values. I was thinking about loading back > these values on TMR3 (max value - recorded value) and drive an IR LED on/off > with interrupts. Well, doesn't seem to work, I guess this is again about > modulation ? > > Do you have some more guidelines ? > > TIA > Cheers, > Seb > > > > 2011/6/18 William <[email protected]> > >> Hi Seb, >> >> You're probably seeing the carrier - around 40KHz, so using a device >> that demodulates the carrier would definitely help. They are cheap, >> for example the PNA4612M. >> >> Have fun! >> >> William >> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]. >> For more options, visit this group at >> http://groups.google.com/group/jallib?hl=en. >> >> > > > -- > Sébastien Lelong > > > -- Sébastien Lelong -- You received this message because you are subscribed to the Google Groups "jallib" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/jallib?hl=en.
