Making a 9-pin programming adaptor

micrometal

New Member
I have bought one of the Versabot kits that are on sale. I have just begun to look at it and discovered that it expects a 9-pin D-connector programming cable, which I do not have. I do have an AXE091 Experimenter Board and an associated USB Download cable, and a 9-pin D-connector in my bits box.

I am wondering what is the easiest way to load programs onto the Versabot. I imagine that building an adapter with a phono socket and a 9-pin plug would be the simplest path but I don't know where to find a wiring diagram. There may be one on the forum but I have not found anything.
 
Check out section 2.6 of your Versabot manual

Your kit should have included a small dark blue board labelled "ROBOT ADAPTER"
It has a D9 connector and a 3.5mm stereo socket, with a 1K resistor between the two

Check the box carefully and hopefully you will find this adapter

-------------------------------------------------

Code:
TRS to D9 BOT adapter

PC            3.5               D9         BOT 232 IC

1 in          nc        nc      1
2 in  rx      S         1k      2 Tx out   inverted via MAX232
3 out tx      R         R       3 Rx in    inverted via MAX232
4 out DTR     nc        T       4 gnd MCLR inverted
5 gnd         T gnd     T       5 gnd gnd
6 in  DSR     nc                6 nc
7 out RTS     nc                7 nc
8 in  CTS     nc                8 nc
9 in  RS      nc                9 nc
 
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Yes - you are right. It is much neater than anything that I could have made.

Thanks for the quick reply.
 
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