How I did it - Parallellportinterface to RS232

[Nagy]

Just wanted to tell the way I did it.
The parallellport connection didn´t work out to well.
I am not the only person who has this experience, it seems.

So I put the simple connection with a 680 kOhm resistor and a 4.7V zenerdiod to a RS-232 serial plug. The connection was almost the same, but with the difference that ground was connected to pin 5 and the signal to pin 9.

It works superb with no ripple at all.

The drawback is that this might not work on all computers, it depends on the hardware status on the serial port itself.

It was told that this connection should not harm the computer or the RC but I´m not deep into electronics so please could someone with more knowledge confirm this?

Anyway it works fine for me and could be worth trying if you´re desperat enough.

Regards