Hi to every one,
I am very amateur in Arduino Programming,
I have an Arduino uno, a relay and a DS18B20 sensor probe.
Temperature as T
Relay as R.
For T>=27 R=ON (the digital output will be HIGH) //In that moment a cooling system will cool the probe
While T>=25 the Relay will be ON (HIGH)
For T<25 R=OFF (the digital output will be LOW) //In that moment the cooling system will stop
While T<27 the Relay will be OFF (LOW)
Summing, for temperatures higher or equal to 27 I want the cooling system to cool the probe until to reach 25 Celsius. When the temperature is below 25 I want to stop and start again for temperatures >=27 Celsius.
P.S. I have already the code for sensor to read the temperature and I miss only this part.
Thanks in advance