// 20W LED strobelight project by einyaa // Feel free to use anyway you want int LED = 13; void setup() { pinMode(LED, OUTPUT); } void loop() { for (int i = 0; i < 4; i++) // Number of flash in a sequence (3 in this example) { digitalWrite(LED, HIGH); // Turn LED on delay(10); // Time in mS for LED on digitalWrite(LED, LOW); // Turn LED off delay(100); // Time in mS between strobes in a sequence } delay(800); // Time in mS between strobe sequences }