Description
A blinking LED that starts at with a given number of blinks and then doubles the number of blinks progressively. Example: 1 blink, pause, 2 blinks, pause, 4 blinks, pause, 8 blinks, …, all the way to 100 blinks.
Components
1 Arduino
1 LED
1 220 Ohm Resistor
1 Breadboard
3 wires
Code
/* Blink Turns on an LED 1 time, pauses, turns on an LED 2 times quickly, pauses, turns on an LED 4 times quickly, pauses, etc., doubling the number of quick blinks each time. */ // the setup function runs once when you press reset or power the board void setup() { // initialize digital pin 13 as an output. pinMode(13, OUTPUT); } // the loop function runs over and over again forever void loop() { int blinkCount = 1; //initialize the first number of blinks in a series while (blinkCount < 100) { //max number of blinks in a series for (int i = 0; i < blinkCount; i++) { digitalWrite(13, HIGH); //turn on LED delay(100); //time LED is on digitalWrite(13, LOW); //turn off LED delay(100); //time LED is off } delay(2000); //delay between blinking series blinkCount = blinkCount + blinkCount; //double the length of the series } }
Image