// Pin D7 has an LED connected on FLORA. // give it a name: int led = 7; // the setup routine runs once when you press reset: void setup() { // initialize the digital pin as an output. pinMode(led, OUTPUT); } // the loop routine runs over and over again forever: void loop() { digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level) delay(1000); // wait for a second digitalWrite(led, LOW); // turn the LED off by making the voltage LOW delay(1000); // wait for a second }
If you're using a Windows computer, it will be named COMsomething, but not COM1 or COM2 (so it will be whatever comes after those two if they exist, such as COM3 or COM4).