LED Lab Exercise
For this assignment, I created a blinking LED display by running a simple circuit through a single LED light from an Arduino UNO board. I used a provided code sketch to cause the light to blink on and off in intervals of one second, then modified the code (see below) to create a sequence of two short blinks and one long blink.
Components used:
1 Arduino UNO Board
1 Breadboard
1 220-ohm resistor
1 LED light
1 USB Power Supply
Code:
/*
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
This example code is in the public domain.
*/
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13;
// 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(150); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(100); // wait for a second
digitalWrite(led, HIGH);
delay (150);
digitalWrite(led, LOW);
delay (200);
digitalWrite(led, HIGH);
delay (600);
digitalWrite(led, LOW);
delay (80);
}
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