Arduino程序结构: setup o Blink I Arduino 0021 ⊙回回四國圖 Bnk§ Blink Turns on an LED on for one second, then off for one second, repeatedly This example code is in the public domain 上电后seup函数执行一次 void setupof // initialize the digital pin as an output // Pin 13 has an LED connected on most Arduino boards: pinMode (13, OUTPUT); void loops digitalWrite(13, HIGH); / set the LED on deay(1880; 1/ wait for a second digitalWrite(13, LOW ): / set the LED off de lay (1000); // wait for a second4 Arduino程序结构：setup() 上电后setup()函数执行一次