Description
I used an Arduino with a red LED. I changed the code to light up in a “hi” pattern using Morse Code (… ..). The lights would blink 4 times rapidly (1/5 second on, 1/5 a second off) with a second pause, followed by blinking twice rapidly (1/5 second on, 1/5 second off). I uploaded the code and made sure that it has changed.
Components
- 1 Arduino
- 1 LED
- 1 Resistor (220Ω)
- 1 Breadboard
- 1 Macbook Pro
- 2 jumper cables
Photo
Code
modified 31 Aug 2016 by Sasha Volkov */ // 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 to spell out "hi" in Morse Code void loop() { digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level) delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, HIGH); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, HIGH); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, HIGH); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW - long pause delay(1000); digitalWrite(13, HIGH); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, HIGH); // turn the LED off by making the voltage LOW delay(200); digitalWrite(13, LOW); // turn the LED off by making the voltage LOW - long pause delay(1000); }