LED1秒間隔で点灯/消灯しつつシリアルエコー
char led_pin = 13; boolean led_stat = true; void setup(){ Serial.begin(9600); pinMode(led_pin, true); } void loop(){ delay(1000); digitalWrite(led_pin, led_stat = !led_stat); Serial.print("led: "); if(led_stat) Serial.println("on"); else Serial.println("off"); if(Serial.available()){ Serial.print("echo: "); while(Serial.available()) Serial.write(Serial.read()); Serial.println(""); } }