Description:
The assignment was to make an LED blink by programming the Arduino controller. I used 2 LEDs in parallel to make it more fun. Also I made the sequence with 3 different blinking on and off times so the LEDs went on and off in a particular sequence. There were 3 time delays i used in decreasing order. So the LEDs blink faster as the sequence proceeded and looped back from start.
Components Used:
1- Arduino Uno microcontroller
1- 220 Ω Resistor
1- Breadboard
2- Light Emitting Diode (LED)
Connecting wires
Code:
/*
Blink
Turns on LEDs on for one second, then off for one second, then on for half a second and off for half a second, then on for 1/10th a second and off for 1/10th a 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(1000); // wait for a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(500); // wait for half a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(500); // wait for half a second
digitalWrite(led, HIGH); // turn the LED on (HIGH is the voltage level)
delay(100); // wait for one tenth a second
digitalWrite(led, LOW); // turn the LED off by making the voltage LOW
delay(100); // wait for one tenth a second
}
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