Working with two LEDs and two PUSH BUTTONs

This project illustrates the use of two PUSH BUTTONS to operate two LEDs

Apr 24, 2019

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97964 views

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19 respects

learning

starter

beginner

Components and supplies

Resistor 1k ohm

Arduino UNO

LED (generic)

Jumper wires (generic)

Tactile Switch, Top Actuated

Breadboard (generic)

Apps and platforms

Arduino IDE

Project description

Code

Two LEDs and Two Push Buttons with opposite effect

arduino

Two LEDs and Two Push Buttons with opposite effect

1const int BUTTON1 = 2;
2const int BUTTON2 = 4;
3const int LED1 = 8;
4const  int LED2 = 12;
5int BUTTONstate1 = 0;
6int BUTTONstate2 = 0;
7
8void setup()
9{
10  pinMode(BUTTON1, INPUT);
11  pinMode(BUTTON2, INPUT);
12  pinMode(LED1, OUTPUT);
13  pinMode(LED2, OUTPUT);
14}
15
16void loop()
17{
18  BUTTONstate1 = digitalRead(BUTTON1);
19  if (BUTTONstate1 == HIGH)
20  {
21    digitalWrite(LED1, HIGH);
22  } 
23  else{
24    digitalWrite(LED1, LOW);
25  }
26  BUTTONstate2 = digitalRead(BUTTON2);
27  if (BUTTONstate2 == HIGH)
28  {
29    digitalWrite(LED2, LOW);
30  } 
31  else{
32    digitalWrite(LED2, HIGH);
33  }
34}
35

const int BUTTON1 = 2;
const int BUTTON2 = 4;
const int LED1 = 8;
const  int LED2 = 12;
int BUTTONstate1 = 0;
int BUTTONstate2 = 0;

void setup()
{
  pinMode(BUTTON1, INPUT);
  pinMode(BUTTON2, INPUT);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
}

void loop()
{
  BUTTONstate1 = digitalRead(BUTTON1);
  if (BUTTONstate1 == HIGH)
  {
    digitalWrite(LED1, HIGH);
  } 
  else{
    digitalWrite(LED1, LOW);
  }
  BUTTONstate2 = digitalRead(BUTTON2);
  if (BUTTONstate2 == HIGH)
  {
    digitalWrite(LED2, LOW);
  } 
  else{
    digitalWrite(LED2, HIGH);
  }
}

Downloadable files

Breadboard Diagram

Make connections as shown in the figure.

Breadboard Diagram

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