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Repost from O Level Previous paper
M4-R5 Practical πππ Marks-25
Q(2) Write a program to interface Button and LED ,so that LED blinks/glow when button is pressed .
Repost from O Level Previous paper
M4-R5 Practicalπππ Marks-25
Q.(1) Write a program to Blink default Light Emitting Diode (LED) on Arduino board with the delay of 2 sec π
Repost from O Level Previous paper
M4-R5 Practical Questions-ππ
Write a program for sequence LED On-OFF
Repost from O Level Previous paper
Q(3) Write a program to interface LCD with Arduino board and display 'Hello word' on it.π
Repost from O Level Previous paper
Q(2) Write a program to interface buzzer with Arduino board to buzz on/off with the delay of 1 sec
Const int buzzer=9; //buzzer to Arduino pin 9
Void setup ()
{
PinMode ( buzzer, Output); // set
buzzer -pin 9 as an output
}
Void loop (){
tone (buzzer,1000);. //Send 1 KHZ sound signal
delay (1000);. / / For 1 sec
noTone(buzzer); // Stop sound
delay (1000);// for 1sec
}
Repost from O Level Previous paper
M4-R5 Practical πππ Marks-30
Q(3) Write a program to interface LEDs on pin no 10,11,12,13 and Blink alternative at the delay of 1 sec
Ans - //Multiple LED blinking with delay of 1 sec .
int led 1= 13;
int led 2= 12;
int led3 = 11;
int led4= 10;
//The setup routine runs once when you press reset:
Void setup()
{
//initalize the digital pin as an output.
PinMode(led1, OUTPUT);
PinMode(led2, OUTPUT);
PinMode(led3, OUTPUT);
PinMode(led4, OUTPUT);
}
//The loop routine runs over again forever:
Void loop()
{
digital Writer (led, HIGH);. //turn the LED on(HIGH is the voltage level)
delay (1000);.// Wait for a second
digitalWrite(led1,Low);//turn the
LED off by making the voltage Low
delay(1000);
{
digital Writer(led2,HiGH);
delay (1000);
digital Writer(led2,LOW);
delay (1000);
}
{
digital Writer (led3, HIGH);
delay (1000);
digital Writer (led3, LOW);
delay (1000);
}
{
digital Writer (led4, HIGH);
delay (1000);
digital Writer (led3, LOW);
delay (1000);
}
//Wait for a second
}
