Index: firmware/App/Drivers/TemperatureSensors.c
===================================================================
diff -u -r2e89a75592087ba15cae7070a92173e9f1efa8fe -r2c61c4a7037fd5a22ecbcd5732d91d3166ef8c5b
--- firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision 2e89a75592087ba15cae7070a92173e9f1efa8fe)
+++ firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision 2c61c4a7037fd5a22ecbcd5732d91d3166ef8c5b)
@@ -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.