I connected my computer via the USB to my Arduino UNO R3 as per instructions. the green light went on, but also a yellow flashing light went on (next to the "L" on the circuit board).....what does it mean? Did I do something wrong?
Thanks.
The Arduino is preloaded with a program called "blink" that blinks the LED on pin 13 at speed of one second.
All is right.
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