see youve made use of my code lol. ive never used the alarm on the ds20,
i just read sensor every 15 minutes, ie
sensors.requestTemperatures();
if(readTemp(insideThermometer)=>20)
digitalWrite(pin, HIGH); // swicth Fan On
else
digalWrite( pin , LOW);
if(readTemp(insideThermometer)=<10)
digitalWrite(pin, HIGH); // switch heater ON
else
digalWrite( pin , LOW);
Temp should be between 18c and 24c if youre growing what i think youre growing lol
Humidity 45 to 60;