Arduino数字输入输出 Blink I Arduino 0021 ⊙回囵四圖 Blnk§ Blink Turns on an LED on for one second, then off for one second, repeatedly This example code is in the public domain void setup // initialize the digital pin as an output l Pin 13 has an LEd connected on most arduino boards: pinMode(13, OUTPUT) void loop i digitalWrite (13, HIGH); / set the LED on delay(1000) 1, wait for a second digitalWrite(13, LOW); // set the LED off delay(1000); // wait for a second6 Arduino数字输入输出