Hi guys, Can anyone explain this code and the output?

Question

const int buzzerPin = 5;
const int flamePin = 2;
int Flame = HIGH;

void setup()
{
pinMode(buzzerPin, OUTPUT);
pinMode(flamePin, INPUT);
Serial.begin(9600);
}

void loop()
{
Flame = digitalRead(flamePin);
if (Flame== LOW)
{
Serial.println("Fire is Detected");
digitalWrite(buzzerPin, HIGH);
}
else
{
Serial.println("No Fire is Detected");
digitalWrite(buzzerPin, LOW);
}

Answer 1

This is not java, but Arduino.

Two constants and one variable are globally declared here, which will be used in two functions: setup() and loop().
In setup() the function is set to the fifth pin of the output signal of the arduino module, and to the second pin of the input signal and connects a monitor with a default data transfer rate of 9600 to the module (it was possible not to write).
The loop() function checks the presence of a digital signal on the second pin of the Arduino module an infinite number of times, if it is not there, then the inscription "Fire detected" is displayed on the monitor and a signal (logical 1) is sent to the fifth pin, if there is a signal, then the text "No fire detected" is displayed on the monitor and the fifth pin is removed signal (the logical 0 remains).

Answer 2

The code is not valid Java, and it seems to be incomplete anyway (where are the LOW and HIGH values coming from?)
You have to give more context, and specify the language.
It would be best to save your full code in the playground and give a link.
I appreciate if it would not run on Sololearn because it seems to involve serial communication.

Answer 3

Presumably, setup() gets called once to initialize the data and hardware. It sets up a digital I/O port so that buzzerPin (pin 5) is an output data line, and flamePin (pin 2) is an input data line. It opens the serial port at 9600 baud so that it can send messages to the monitoring display - perhaps a computer, serial printer, or serial monitor of some sort.

Presumably loop() gets called periodically to check and report the status of the flamePin signal. As long as the signal voltage is high (e.g., +5 VDC), it reports there is no fire and it silences the buzzer by setting the buzzer pin to low. If the fire signal goes low (e.g., 0 VDC) then it reports that a fire was detected and sounds a buzzer by setting the buzzerPin high.

Answer 4

This is an Arduino code for fire alarm (I think) , I can explain it but with my native language Arabic