Just bought a new Uno board. Out of the box the surface mount LED next to pin 13 blinks continuously when plugged into USB port. I wired up an external diode to output 13 and it also blinks at the same time. When I hit the reset button and the blinking momentarily stops and then starts blinking ag…

Pin 13 blinks continuously

Coding_Badly July 20, 2011, 4:35am 4

When you connect the Uno to the computer, does the computer play the "device insertion" sound?

When you disconnect the Uno, does the computer play the "device removal" sound?

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