Index: firmware/App/Drivers/TemperatureSensors.c
===================================================================
diff -u -rf14371c9c14b461a50d7b08336e2e5fbed16f360 -re12eefac42a3806a34f3ddac6df30bbb5ca51f6f
--- firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision f14371c9c14b461a50d7b08336e2e5fbed16f360)
+++ firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision e12eefac42a3806a34f3ddac6df30bbb5ca51f6f)
@@ -34,6 +34,8 @@
 
 // ********** private definitions **********
 
+#define USE_PT_100                                              1                                               ///< flag to check PT100 use in calculations
+
 #define PRIMARY_HEATER_TEMP_SENSORS_GAIN                        8U                                              ///< Primary heater temperature sensors gain.
 #define PRIMARY_HEATER_TEMP_SENSORS_REF_RESISTANCE              20000                                           ///< Primary heater temperature sensors reference resistance.
 #define PRIMARY_HEATER_TEMP_SENSORS_0_DEGREE_RESISTANCE         1000U                                           ///< Primary heater temperature sensors zero degree resistance.