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 -- 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.
