Senzor MQ4 folosit pentru detectarea gazelor naturale si a metanului.
Specificatii:
Senzorul de gaz este Dioxidul de Staniu (SnO2) cu conductivitate scazute in aerul curat.
Tensiune alimentare: 5VDC, 150mA
Concentratie detectata: 300 - 10000ppm
Output: Pin Digital sau pin Analogic
Iesire Analogica: 0 - 5V; voltajul creste sau scade in functie de concentratia detectata
Iesire Digitala TTL
Exemplu cod citire analogica:
void setup() {
// initialize serial communication at 9600 bits per second:
Serial.begin(9600);
}
// the loop routine runs over and over again forever:
void loop() {
// read the input on analog pin 0:
int sensorValue = analogRead(A0);
// print out the value you read:
Serial.println(sensorValue);
delay(1); // delay in between reads for stability
}
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