The answer is one of the options below please solve carefully and circle the correct option Please write clear . On or Off???
The answer is one of the options below please solve carefully and circle the correct option Please write clear . On or Off???
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
The answer is one of the options below please solve carefully and circle the correct option Please write clear .
On or Off???
Transcribed Image Text:Consider the button code below.
int ledPin 5;
int buttonApin
byte leds = 0;
void setup()
{
}
void loop()
{
}
pinMode(ledPin, OUTPUT);
pinMode (buttonApin, INPUT_PULLUP);
= 9;
if (digitalRead (buttonApin)
{
}
}
if (digitalRead (buttonApin)
{|
digitalWrite(ledPin, HIGH);
digitalWrite(ledPin, LOW);
=
on
=
LOW)
HIGH)
Will the LED on pin 5 be on or off when the button A is pressed?
off
Expert Solution
Step 1
ledpin is the OUTPUT pin
buttonApin is the switch
setup function basically defines ledpin as OUTPUT
buttonApin as INPUT and it is HIGH initially.
As buttonApin is initially HIGH so when button is pressed it becomes low.
so as per loop function ledpin is now HIGH.
So led will turn on when button A is pressed.
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