The arduino receives temperature in °C through serial.

The serial command to control it:

0,20; // for 20 °C

The first '0' is constant. The next number is the tempetature.

If the temperature is less than MIN_TEMP, the LEDs blink in blue. They blink in red if the temperature is more than MAX_TEMP.

For exemple :

80 °C

0,80;

-1 °C

0,-1;

30 °C

0,30;