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No reaction after plugging board via usb to PC

Question asked by kupicki.andrzej on Aug 1, 2013
Latest reply on Aug 1, 2013 by kupicki.andrzej
Hi, I have tried to measure the real output voltage on 5V pins so I'd know for sure I won't burn my servo, but after doing so all LEDs went of, nothing happens after connecting board to USB and now on the 5v pin I have 2V output not 4,7V as I measured it earlier. I'm pretty sure the board is gone, but I want some assurance. Maybe there is something I can do?

UPDATE: I have no idea what I have done, but empowering the board via usb doesn't work, but when I enpower the board with external source battery it works and when I plug it to the computer, port COM is ON and communication is fine. Any ideas?

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