4 . Push Button LED

What is the primary function of a push button in an Arduino circuit?

• To control the flow of current

• To provide power to the circuit

• To control the brightness of the LED

• To act as a switch that sends an input signal to the Arduino

Which Arduino pin mode is used to read the state of a push button?

• OUTPUT

• INPUT_PULLUP

• ANALOG

• PWM

What we can call this position ?

• Button released

• Button is ON

• Button not pressed

• Button is hold

• Push button is not connected properly

• Ground is not connected

• Led connection is wrong

• resistor is positioned in wrong place

which two are connected in pushbutton?

• 1 & 3 are connected,

  2&4 are connected

• 1&2 are connected,

  4&3 are connected

• 1&4 are connected,

  2&3 are connected

• 4&3 are connected,

  2&1 are connected

Which function is used to set up the initial state of pins in an Arduino sketch?

• • digitalWrite()

• pinMode()

• loop()

• init()

choose the correct option to control led using pushbutton .

• int buttoninfo = digitalRead(pushbutton);

  if(buttoninfo == 0){

  digitalWrite(led, HIGH); }

  if(buttoninfo == 1){

  digitalWrite(led, HIGH);}

• int buttoninfo = digitalRead(pushbutton);

  if(buttoninfo == 0){

  digitalWrite(led, LOW); }

  if(buttoninfo == 1){

  digitalWrite(led, HIGH);}

• int buttoninfo = digitalRead(pushbutton);

  if(buttoninfo == 0){

  digitalWrite(led, LOW); }

  if(buttoninfo == 1){

  digitalWrite(led, LOW);}

• int buttoninfo = digitalRead(pushbutton);

  if(buttoninfo == 0){

  digitalWrite(led, HIGH); }

  if(buttoninfo == 1){

  digitalWrite(led, LOW);}

Choose the correct option

• A

• B

• Both are correct

• Both are wrong

In which case the LED turns ON ?

• 
• 
• Both cases are correct

• All are wrong

Pick the Real time example for a push button

• 
• 
• 
•