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Arduino's via USB hub


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Hi,

 

I have 4 arduino mega's running through a usb hub. When i try and add them through the add arduino script, it returns a 'cannot communicate with device' error.

 

If i plug only one arduino into the hub at any time i can communicate with each.

 

Each has its own tty device assinged on the raspberry. pi

 

Any ideas please?

 

Thanks,

 

Neil.

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Is the hub self powered or powered from the pi?  If the hub is not self powered, the pi may not have enough current to run the hub and 2 or more Arduinos.

 

If you don't have a power problem, could you copy the Script line that works and the ones that don't into your next message?

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