Interface RS232 to 12 Volt One Wire
I am interested in a circuit to interface an RS232 to a special 12 volt ONE-WIRE circuit. It is special because it is an controller used in industry. So I have a MAX3232 to convert my Arduino to RS232 levels, but that will get me to 2 wires. I need to be able to make that into a ONE-Wire at 12 volt levels (not 3-5 etc) . I see the MAXIM circuit (attached) for converting to one-wire at lower levels, but can't find anything to utilize a 12 volt one-wire level. Hope I am being clear and thanks for your assistance.