I hope someone can explain to me the bold part: Why doesn't my sketch start when I power up or reset the Arduino board? Most likely because you are sending serial data to the board when it firsts turns on. During the first few seconds, the bootloader (a program pre-burned onto the chip on the boa…

Sketch after Arduino Uno power off

system May 6, 2011, 9:10am 9

Actually the Blink sketch runs after powering down my board and powering again.

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