I'm not at all familiar with opto isolation components. Does anyone have a recommendation for optically isolating signals between a PC and uC using:
standard rs232 (I am using you would isolate before something like a max232 chip)
I have a FTDI usb to ttl level cable I have been playing around with. It outputs 0v or 5v instead of the rs232 voltages. What could/would you use to opto isolate this?