Ohh, okay.. let me try to explain
i see i need the resistors, i have tougt of em, just forgot to draw em.. i reached a conclusion, that about 100 ohm on each LED was appropriate..
But, what i basicly want is to make my Z5500 speaker system 2 way controlable by my HTPC through my arduino, like:
HTPC -> Arduino -> Speakers
Speakers -> Arduino -> HTPC.
I honestly didnt think about how many mA my IR receiver can deliver..? so a transistor in between the IR and Optos?
I dont know if there is a better way than this, if.. please do share?
Also, the reason of the optos is, that i needed a way to do this, where the speaker system would remain working if i remove the arudino from the equation.. also it gives me a way to control the speakers through the "BASE" without backfiring anything into my IR-receiver..? is that the wrong way to do this?