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Originally Posted by Tom Bottiglieri
Yes, you can do that. And then you can wire up the power in and ttl serial lines to un used pins on the db-9 connector. Then splice a serial cable, and solder on PWM cables to the other end to connect to PWM out, and the ttl serial converter.

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Yes in fact thats what we did we have everything going through a DB15 connector..........However the calibration part does not work when connected to the computer through the "custom cable". We have triple checked the wiring. And we have also unplugged the ttl serial converter from the robot controller when trying to calibrate through that. Yet it still doesn't work........everything else works fine. Also, it works when we use the DB9 cable that came in the kit.