int baselineTemp = 0; int celsius = 0; int fahrenheit = 0; void setup() { pinMode(A0, INPUT); Serial.begin(9600); pinMode(2, OUTPUT); pinMode(3, OUTPUT); pinMode(4, OUTPUT); pinMode(7, OUTPUT); }
Can you help me put comments in every line of the code below. It's a c++ language. I used this in arduino.
int baselineTemp = 0;
int celsius = 0;
int fahrenheit = 0;
void setup()
{
pinMode(A0, INPUT);
Serial.begin(9600);
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(7, OUTPUT);
}
void loop()
{
baselineTemp = 40;
celsius = map(((analogRead(A0) - 20) * 3.04), 0, 1023, -40, 125);
fahrenheit = ((celsius * 9) / 5 + 32);
Serial.print(celsius);
Serial.print(" C, ");
Serial.print(fahrenheit);
Serial.println(" F");
if (celsius < baselineTemp) {
digitalWrite(2, LOW);
digitalWrite(3, LOW);
digitalWrite(4, LOW);
}
if (celsius >= baselineTemp && celsius < baselineTemp + 10) {
digitalWrite(2, HIGH);
digitalWrite(3, LOW);
digitalWrite(4, LOW);
}
if (celsius >= baselineTemp + 10 && celsius < baselineTemp + 20) {
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, LOW);
}
if (celsius >= baselineTemp + 20 && celsius < baselineTemp + 30) {
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
tone(7, 220, 100);
delay(100);
}
if (celsius >= baselineTemp + 30) {
digitalWrite(2, HIGH);
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
tone(7, 220, 100);
delay(100);
}
delay(1000);
}
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