Explain the following code? const int analogPin = A0; const int ledCount = 10; int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; void setup() { for (int thisLed=0; thisLed< ledCount; thisLed++) { pinMode(ledPins[this Led], OUTPUT); } } void loop() { int sensorReading = analogRead(analogPin); // map the result to a range from 0 to the number of LEDs: int ledLevel = map(sensorReading, 0, 1023, 0, ledCount); for (int thisLed = 0; thisLed< ledCount; thisLed++) { if (thisLed < ledLevel) { digitalWrite(ledPins[thisLed], HIGH); } } else { digitalWrite(ledPins[thisLed], LOW); }

Explain the following code? const int analogPin = A0; const int ledCount = 10; int ledPins[] = { 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; void setup() { for (int thisLed=0; thisLed< ledCount; thisLed++) { pinMode(ledPins[this Led], OUTPUT); } } void loop() { int sensorReading = analogRead(analogPin); // map the result to a range from 0 to the number of LEDs: int ledLevel = map(sensorReading, 0, 1023, 0, ledCount); for (int thisLed = 0; thisLed< ledCount; thisLed++) { if (thisLed < ledLevel) { digitalWrite(ledPins[thisLed], HIGH); } } else { digitalWrite(ledPins[thisLed], LOW); }

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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Concept explainers

Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

Question

Explain the following code?
const int analogPin = A0;
const int ledCount = 10;
int ledPins[] = {
2, 3, 4, 5, 6, 7, 8, 9, 10, 11
};
void setup() {
for (int thisLed = 0; thisLed < ledCount; thisLed++) {
pinMode(ledPins[thisLed], OUTPUT);
}
}
void loop() {
int sensorReading = analogRead(analogPin);
// map the result to a range from 0 to the number of LEDs:
int ledLevel = map(sensorReading, 0, 1023, 0, ledCount);
for (int thisLed = 0; thisLed <ledCount; thisLed++) {
if (thisLed < ledLevel) {
digitalWrite(ledPins[thisLed], HIGH);
}
}
}
else {
digitalWrite(ledPins[thisLed], LOW);
}

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