Pregunta: Hi!! Thank you in advance for your time and your response :) My question is, for the following arduino code, do I need a relay? And if the answer is yes, what part of the code does the relay help with? const int sensorHumedadPin = A0;const int bombaAguaPin = 8;const float pendiente = 399.6;const float interseccion = 123;const int umbralBomba = 50;void

Hi!! Thank you in advance for your time and your response :) My question is, for the following arduino code, do I need a relay? And if the answer is yes, what part of the code does the relay help with?

const int sensorHumedadPin = A0;

const int bombaAguaPin = 8;

const float pendiente = 399.6;

const float interseccion = 123;

const int umbralBomba = 50;

void setup() {
pinMode(sensorHumedadPin, INPUT);
pinMode(bombaAguaPin, OUTPUT);
digitalWrite(bombaAguaPin, LOW);
Serial.begin(9600);
}

void loop() {
int lecturaHumedad = analogRead(sensorHumedadPin);
int tiempoActivacion = constrain((lecturaHumedad * pendiente) + interseccion, 0, 2000);
Serial.print("Humedad: ");
Serial.print(lecturaHumedad);
Serial.print(", Tiempo de Activación: ");
Serial.print(tiempoActivacion);

if(lecturaHumedad < umbralBomba) {
activarBomba(tiempoActivacion);
}
delay(15000);
}

void activarBomba(int tiempoActivacion) {
digitalWrite(bombaAguaPin, HIGH);
delay(tiempoActivacion);
digitalWrite(bombaAguaPin, LOW);
}