I have an Intel Edison with the mini breakout board. I have connected a USB cable to the J3 connector and I see the serial device, FT232R USB UART, on my computer. But when I try to connect using screen /dev/tty.usbserial-A502LTL3 115200 -L I get a blank screen. It seems like the Edison is not on.
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robertjd
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You need to connect a USB cable to the J16 connector as well. The J16 USB port provides power to the Edison board. The other one, J3, is only for serial access - it does not power the board.
robertjd
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