tronicgr wrote:Perhaps you can use these big capacitor type battery along your normal PSU for the motors.
http://www.newegg.com/Product/Product.a ... 49X1M61362
after re-wiring everything with no luck, I have considered trying each PSU with both JRKs to see if the behavior changes and it changed.
one of the PSUs was able to handle both motors with no disconnects much as I was happy to test
so it seems I had a faulty PSU.even if it seemed to work properly, it also seemed to be sensitive to certain current pull from the motor while changing direction. now it works great with only one PSU. these are Chinese 12V30A LED, identical with the exception that one of them handles the motors better than the other.
the conclusion is that even if the PSU seemed to be the issue (as pointed initially by RacingMat), the only part affected by the behavior is still the USB module. I don't know what exactly the PSU was not doing properly that would affect the USB module in this manner. I'd still go for a serial interface for communication with the JRKs and those using Kangaroo with TTL will probably never have this problem.
now I know that motor noise isn't the issue.
any recommendations regarding PSUs? I've seen that using a car battery in parallel with a PSU is a way to go but I'm not sure I understand why and I'd rather simplify the set-up than adding a car battery to it.
cheers
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