Diagram to connect the Big Dome Pushbutton to Arduino

Sensors
1

Hello, I want to connect this big pushbutton to Arduino Mega 2560 Rev3. Could you please provide a diagram on how to connect it to the Arduino? It seems that I might also need to put some kind of resistor somewhere. Thank you

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2

Which push button? Do you have any link or picture?

3

The 10k resistor can be used between the digital pin and GND; see https://www.instructables.com/Big-dome-push-button-LinkIt-basics-PART-1/

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4

Thank you!

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5

Here are the detailed instructions:

Connecting the Big Dome Push Button to Arduino Mega 2560 Rev 3 with LED Indicator
Parts Needed

  • Arduino Mega 2560 Rev 3
  • Big Dome Push Button
  • Breadboard
  • Jumper Wires
  • LED
  • Resistor (220-1kΩ)

Connection Diagram

  1. Connect the Big Dome Push Button to the breadboard.
  2. Connect one leg of the push button to Digital Pin 2 on the Arduino Mega.
  3. Connect the other leg of the push button to GND (Ground) on the Arduino Mega.
  4. Connect the LED to Digital Pin 13 on the Arduino Mega.
  5. Connect the resistor to the LED.
  6. Use jumper wires to connect the push button legs, LED, and resistor to the Arduino.

Complete and Functioning Code

c++
// Define the push button pin
const int buttonPin = 2;

// Define the LED pin
const int ledPin = 13;

// Variable to store the button state
int buttonState = 0;

// Variable to store the previous button state
int previousButtonState = 0;

void setup() {
  // Initialize the push button pin as an input
  pinMode(buttonPin, INPUT);

  // Initialize the LED pin as an output
  pinMode(ledPin, OUTPUT);

  // Initialize the serial communication
  Serial.begin(9600);
}

void loop() {
  // Read the state of the push button
  buttonState = digitalRead(buttonPin);

  // Check if the button state has changed
  if (buttonState != previousButtonState) {
    // Update the previous button state
    previousButtonState = buttonState;

    // Check if the button is pressed
    if (buttonState == HIGH) {
      // Code to run when the button is pressed
      Serial.println("Button pressed!");
      digitalWrite(ledPin, HIGH); // Turn on the LED
    } else {
      // Code to run when the button is not pressed
      Serial.println("Button not pressed!");
      digitalWrite(ledPin, LOW); // Turn off the LED
    }
  }

  // Delay for 50 milliseconds
  delay(50);
}

How the Code Works

  1. Debouncing Mechanism: The code uses a simple debouncing mechanism to ensure that the button press is registered only once, even if the button is pressed multiple times in quick succession.
  2. LED Indicator: The code turns on the LED when the button is pressed and turns it off when the button is released.
  3. Button State Detection: The code reads the state of the push button using digitalRead() and stores it in the buttonState variable.
  4. Previous Button State Comparison: The code compares the current button state with the previous button state to detect changes.
  5. Serial Communication: The code prints messages to the serial monitor indicating whether the button is pressed or not.
  6. Delay: The code delays for 50 milliseconds using delay() to prevent excessive serial communication.

I hope this helps in any way and if it didn’t please let me know since I designed it with a blindfold on

Best regards
Joel Roman
joelroman497@gmail.com

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6

I haven’t seen the systems setup though this is just a rough estimate based on the information provided and a little bit of creative thinking.