I need to connect my Raspberry Pi to a Viessmann heater, it uses an Optolink-interface (using 2 LEDs for sending and receiving IR-light for data-transmission) which is RS232 as far as I understand it. Is there any prob to drive the LEDs directly through the GPIO pins? I use this circuit:
I don't use the 5V regulator part though, obviously.
Can I use the generic (documented) way to open the interface in Raspian?