If I want to make my own long serial cable, can I use cat 5 and what pins are needed for basic servo control? I take it connection is pin to pin. IE Pin 1 to pin 1 etc.
Just got my board and I could buy a serial cable, but why buy a cable I will ultimately not be able to use.
Thx for the help.
Did some research and looked at the board. Looks like only pin 3 data send and pin 4 data terminal ready and likely ground which looks like it is the case of the connector is all that is involved. If I can get a confirmation on this, I have a nice long cable I can modify.
I was looking at the pinout as it relates to the male connector. So pin 2 and 3 ? Looks like send and receive?
The BB2 uses pins 2,3,4 and 5, so that’s the pins you should probably support. You might get up to 50’, depending on the drivers. As the Atom chip uses some simple transistors to implement level conversion, I’d expect that you’d get much less then 50’.
For max distances, convert to RS-422 or one of it’s relatives. Twisted pairs also help.
Alan KM6VV
For basic servo control, you probably need only two wires, a tx and a ground. I use cat3 four conductor telephone wire.
2 for a very minimum might work, if you don’t have to send an ACK back for the COM. The RTS line or whatever it is would be needed for programming. Programming might be more difficult with a long wire.
Alan KM6VV
