Thermostat Controller

tasmota/my_user_config.h

@@ -668,6 +668,35 @@
 //#define USE_HRE                                  // Add support for Badger HR-E Water Meter (+1k4 code)
 //#define USE_A4988_STEPPER                        // Add support for A4988/DRV8825 stepper-motor-driver-circuit (+10k5 code)
 
+// -- Thermostat control ----------------------------
+//#define USE_THERMOSTAT                             // Add support for Thermostat
+  #define THERMOSTAT_CONTROLLER_OUTPUTS         1         // Number of outputs to be controlled independently
+  #define THERMOSTAT_SENSOR_NAME                "DS18B20" // Name of the local sensor to be used
+  #define THERMOSTAT_RELAY_NUMBER               1         // Default output relay number for the first controller (+i for following ones)
+  #define THERMOSTAT_SWITCH_NUMBER              1         // Default input switch number for the first controller (+i for following ones)
+  #define THERMOSTAT_TIME_ALLOW_RAMPUP          300       // Default time in seconds after last target update to allow ramp-up controller phase in minutes
+  #define THERMOSTAT_TIME_RAMPUP_MAX            960       // Default time maximum ramp-up controller duration in minutes
+  #define THERMOSTAT_TIME_RAMPUP_CYCLE          1800      // Default time ramp-up cycle in seconds
+  #define THERMOSTAT_TIME_SENS_LOST             30        // Maximum time w/o sensor update to set it as lost in minutes
+  #define THERMOSTAT_TEMP_SENS_NUMBER           1         // Default temperature sensor number
+  #define THERMOSTAT_TIME_MANUAL_TO_AUTO        60        // Default time without input switch active to change from manual to automatic in minutes
+  #define THERMOSTAT_TIME_ON_LIMIT              120       // Default maximum time with output active in minutes
+  #define THERMOSTAT_TIME_RESET                 12000     // Default reset time of the PI controller in seconds
+  #define THERMOSTAT_TIME_PI_CYCLE              30        // Default cycle time for the thermostat controller in minutes
+  #define THERMOSTAT_TIME_MAX_ACTION            20        // Default maximum thermostat time per cycle in minutes
+  #define THERMOSTAT_TIME_MIN_ACTION            4         // Default minimum thermostat time per cycle in minutes
+  #define THERMOSTAT_TIME_MIN_TURNOFF_ACTION    3         // Default minimum turnoff time in minutes, below it the thermostat will be held on
+  #define THERMOSTAT_PROP_BAND                  4         // Default proportional band of the PI controller in degrees celsius
+  #define THERMOSTAT_TEMP_RESET_ANTI_WINDUP     8         // Default range where reset antiwindup is disabled, in tenths of degrees celsius
+  #define THERMOSTAT_TEMP_HYSTERESIS            1         // Default range hysteresis for temperature PI controller, in tenths of degrees celsius
+  #define THERMOSTAT_TEMP_FROST_PROTECT         40        // Default minimum temperature for frost protection, in tenths of degrees celsius
+  #define THERMOSTAT_TEMP_RAMPUP_DELTA_IN       4         // Default minimum delta temperature to target to get into rampup mode, in tenths of degrees celsius
+  #define THERMOSTAT_TEMP_RAMPUP_DELTA_OUT      2         // Default minimum delta temperature to target to get out of the rampup mode, in tenths of degrees celsius
+  #define THERMOSTAT_TEMP_PI_RAMPUP_ACC_E       200       // Default accumulated error when switching from ramp-up controller to PI in hundreths of degrees celsius
+  #define THERMOSTAT_TIME_OUTPUT_DELAY          180       // Default output delay between state change and real actuation event (f.i. valve open/closed)
+  #define THERMOSTAT_TEMP_INIT                  180       // Default init target temperature for the thermostat controller
+  #define THERMOSTAT_TIME_MAX_OUTPUT_INCONSIST  3         // Default maximum time where the input and the outpus shall differ (for diagnostic) in minutes
+
 // -- End of general directives -------------------
 
 /*********************************************************************************************\

tasmota/support_features.ino

@@ -560,8 +560,10 @@ void GetFeatures(void)
 #ifdef USE_OPENTHERM
   feature6 |= 0x00000200;  // xsns_69_opentherm.ino
 #endif
+#ifdef USE_THERMOSTAT
+  feature6 |= 0x00000400;  // xdrv_39_heating.ino
+#endif
 
-//  feature6 |= 0x00000400;
 //  feature6 |= 0x00000800;
 
 //  feature6 |= 0x00001000;

tasmota/tasmota.h

@@ -319,9 +319,9 @@ enum DevGroupShareItem { DGR_SHARE_POWER = 1, DGR_SHARE_LIGHT_BRI = 2, DGR_SHARE
 
 enum CommandSource { SRC_IGNORE, SRC_MQTT, SRC_RESTART, SRC_BUTTON, SRC_SWITCH, SRC_BACKLOG, SRC_SERIAL, SRC_WEBGUI, SRC_WEBCOMMAND, SRC_WEBCONSOLE, SRC_PULSETIMER,
                      SRC_TIMER, SRC_RULE, SRC_MAXPOWER, SRC_MAXENERGY, SRC_OVERTEMP, SRC_LIGHT, SRC_KNX, SRC_DISPLAY, SRC_WEMO, SRC_HUE, SRC_RETRY, SRC_REMOTE, SRC_SHUTTER,
-                     SRC_MAX };
+                     SRC_THERMOSTAT, SRC_MAX };
 const char kCommandSource[] PROGMEM = "I|MQTT|Restart|Button|Switch|Backlog|Serial|WebGui|WebCommand|WebConsole|PulseTimer|"
-                                      "Timer|Rule|MaxPower|MaxEnergy|Overtemp|Light|Knx|Display|Wemo|Hue|Retry|Remote|Shutter";
+                                      "Timer|Rule|MaxPower|MaxEnergy|Overtemp|Light|Knx|Display|Wemo|Hue|Retry|Remote|Shutter|Thermostat";
 
 const uint8_t kDefaultRfCode[9] PROGMEM = { 0x21, 0x16, 0x01, 0x0E, 0x03, 0x48, 0x2E, 0x1A, 0x00 };