Server Room Temperature Monitor - Full Code

fullCode.ino

#include <PietteTech_DHT.h>


#define DHTTYPE  DHT22
#define DHTPIN   D4

PietteTech_DHT DHT(DHTPIN, DHTTYPE);

double serverTempMax = 81;
double serverHumidityMax = 60;
double serverTemp;
double serverHumidity;
bool overheatDetected = false;
bool tooHumid = false;

void setup()
{
  Serial.begin(9600);
  Particle.variable("serverTemp", &serverTemp, DOUBLE);
  Particle.variable("serverHumidity", &serverHumidity, DOUBLE);
}

void loop()
{
  int result = DHT.acquireAndWait(2000);
  
  serverTemp = DHT.getFahrenheit();
  serverHumidity = DHT.getHumidity();
  
  if(serverTemp>=serverTempMax && !overheatDetected){
      Particle.publish("server_temp", "overheat");
      overheatDetected = true;
  }
  else if(serverTemp<serverTempMax && overheatDetected){
      Particle.publish("server_temp", "normal");
      overheatDetected = false;
  }
  
  if(serverHumidity>=serverHumidityMax && !tooHumid){
      Particle.publish("server_humidity", "tooHumid");
      tooHumid = true;
  }
  else if(serverHumidity<serverHumidityMax && tooHumid){
      Particle.publish("server_humidity", "normal");
      tooHumid = false;
  }
  
  delay(10000);
}