Hi Kiste, Thanks for your great explanation. Some TSOP are on their way, I hope to decypher my towel warmer very soon :)
Cheers, Seb 2011/6/18 Oliver Seitz <[email protected]> > > *I'm using a photo transistor, not a IR receiver like TSOP4838, so I guess > my troubles could come from this.** > > * > > Difinetly. It is not about accuracy, but about modulation. IR signals are > modulated by a frequency between usually 32 and 56 kHz, 36-38 kHz being most > common. > > TSOP receivers have a demodulated output that only gives a signal if such a > modulated IR signal is received. This modulation is used to mask out ambient > light that could otherwise give a signal, making reception impossible. This > demodulation should be done in the analog part of a receiver circuit, it > would be almost useless to implement that in the µC. > > Greets, > Kiste > > * * > > -- > 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.
