#include "LEDControl.h" 
#include "ButtonControl.h" 

void setup() {
  Serial.begin(9600); // Initialize serial communication at 9600 baud rate for data exchange between the Arduino and the computer
  Serial.println("Popescu Nichifor FAF-212 lab1.1"); 
  Serial.println("Serial Monitor ");
  Serial.println("---------------------------------"); 
  setupLED(); // function that initialize the LED pin as an output
  setupButton(); // function to initialize the button pin as an input
}

void loop() {
  if (Serial.available() > 0) { // if there is data available to read from the Serial buffer
    String command = Serial.readStringUntil('\n'); 
    if (command == "led on") { 
      turnOnLED(); 
    } else if (command == "led off") { 
      turnOffLED(); 
    } else if (command == "toggle") { 
      toggleLED(); 
    } else { 
      Serial.println("Invalid command. Use 'led on', 'led off', or 'toggle'."); 
    }
  }
  
  if (checkButton()) { 
    toggleLED(); 
  }
}

sketch.ino

# Wokwi project

This is a Wokwi project. Please edit this README file and add a description of your project.

## Usage

1. Add parts by clicking the blue "+" button in the diagram editor
2. Connect parts by dragging wires between them
3. Click the green play button to start the simulation


README.md

diagram.json

#ifndef ButtonControl_h
#define ButtonControl_h

#include <Arduino.h>

#define BUTTON_PIN 7 // Define the button pin number

byte lastButtonState = LOW; //To store the last button state, initialized to HIGH assuming pull-up resistor

// Function to initialize the button pin
void setupButton() {
  pinMode(BUTTON_PIN, INPUT); 
}

// check the button state without debouncing
bool checkButton() {
  byte currentButtonState = digitalRead(BUTTON_PIN); 
  if (currentButtonState != lastButtonState) {
    lastButtonState = currentButtonState; // Update the last button state
    // Check if the button is pressed (assuming active low configuration)
    if (currentButtonState == LOW) {
      return true;
    }
  }
  return false; 
}

#endif

ButtonControl.h

#ifndef LEDControl_h 
#define LEDControl_h 

#include <Arduino.h> 

#define LED_PIN 8 // Define the LED_PIN as 8, assigning the LED to digital pin 8 on the Arduino

byte ledState = LOW; // a variable to store the current state of the LED, initialized to LOW (off)

// Initialize the LED pin as an output
void setupLED() {
  pinMode(LED_PIN, OUTPUT); 
}

// Toggle the LED state and print the new state
void toggleLED() {
  ledState = !ledState; 
  digitalWrite(LED_PIN, ledState); 
  Serial.print("LED is now "); Serial.println(ledState ? "ON" : "OFF");
}

// Turn on the LED and print a confirmation message
void turnOnLED() {
  ledState = HIGH; 
  digitalWrite(LED_PIN, ledState); 
  Serial.println("LED turned ON"); 
}

// Turn off the LED and print a confirmation message
void turnOffLED() {
  ledState = LOW; 
  digitalWrite(LED_PIN, ledState); 
  Serial.println("LED turned OFF"); 
}

// Get the current state of the LED (either HIGH or LOW)
bool getLEDState() {
  return ledState; 
}

#endif 