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Write a program in to interface on LED, buzzer and button with Arduino: modify the program to make the buzzer to go on for 1 minute and led glow for 45 seconds, whenever the button is pressed.
To interface LED/Buzzer with Arduino/Raspberry Pi and write a program to turn ON LED for 1 sec after every 2 seconds.
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To interface LED/Buzzer with Arduino/Raspberry Pi and write a program to turn ON LED for 1 sec after every 2 seconds.

Last Updated : 31 Jul 2025 Jul 24, Jan 24, Jul 23, Jan 22

Solution: 

void setup() {
    pinMode(11, OUTPUT);  // Set pin 11 as an output for the LED
}

void loop() {
    digitalWrite(11, HIGH);  // Turn the LED on
    delay(1000);             // Wait for 1 second (1000 milliseconds)
    digitalWrite(11, LOW);   // Turn the LED off
    delay(2000);             // Wait for 2 seconds (2000 milliseconds)
}

Output Description:
LED Behavior:
    The LED connected to pin 11 will turn ON for 1 second.
    It will then turn OFF for 2 seconds.
This cycle repeats indefinitely.

Code Explaination:

Setup() Function:

  • pinMode(11, OUTPUT);: Sets pin 11 as output for the LED.

Loop() Function:

  • digitalWrite(11, HIGH);: Turns the LED on.
  • delay(1000);: Waits 1 second.
  • digitalWrite(11, LOW);: Turns the LED off.
  • delay(2000);: Waits 2 seconds.
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