Innovation Lab #6: Switch Two LEDs ON/OFF

A Bongilcheon High School Innovation Lab project.

BeginnerShowcase (no instructions)10 minutes6,255

Innovation Lab #6: Switch Two LEDs ON/OFF

Things used in this project

Hardware components

Arduino UNO

Breadboard (generic)

Slide Switch

LED (generic)

Software apps and online services

Arduino IDE

Story

Innovation Lab (170816)

I learned how to create a switch so that one LED turns on as another LED turns off. I did not have a switch, so I experimented with a direct wire.

Code

Switch_LED

const int switchPin = 3;
const int led1Pin = 12;
const int led2Pin = 13;

void setup() {
  pimMode(switchPin, INPUT);
  pimMode(led1Pin, OUTPUT);
  pimMode(led2Pin, OUTPUT);
}

void loop() {
  int switchVal;
  switchVal = digitalRead(switchPin);
  
  if (switchVal == HIGH) {
    digitalWrite(led1Pin, HIGH);
    delay(500);
    digitalWrite(led2Pin, LOW);
    delay(500);
  }
  
  else {
    digitalWrite(led2Pin, HIGH);
    delay(500);
    digitalWrite(led1Pin, LOW);
    delay(500);
  }
}