add control status

README.md

@@ -40,6 +40,7 @@ Sntp <|-- Metrics
     class Control{
         +taskControl()
         -timetable
+        +getControlState()
     }
 
     class Safety{
@@ -71,7 +72,56 @@ Sntp <|-- Metrics
     }
 ```
 
-### Hardware
+### Prometheus Metrics
+`curl http://X.X.X.X:9100/metrics`
+#### Example
+```
+burner_fault_pending 1
+circulation_pump_enabled 0
+burner_enabled 1
+safety_contact_enabled 1
+chamber_temperature 21.812500
+chamber_temperature_avg10 21.837500
+chamber_temperature_avg60 21.825521
+inlet_flow_temperature 22.437500
+inlet_flow_temperature_avg10 22.437500
+inlet_flow_temperature_avg60 22.434896
+outdoor_temperature 21.937500
+outdoor_temperature_avg10 21.937500
+outdoor_temperature_avg60 21.933594
+return_flow_temperature 22.375000
+return_flow_temperature_avg10 22.375000
+return_flow_temperature_avg60 22.375000
+chamber_temperature_state 0
+outdoor_temperature_state 0
+inlet_flow_temperature_state 0
+return_flow_temperature_state 0
+safety_state 0
+control_state 5
+sntp_state 0
+system_unixtime 1734814285
+uptime_seconds 90
+wifi_rssi -63
+```
+
+#### Status Encoding
+##### Digital Themperatur Sensor DS10B20
+ - chamber_temperature_state
+ - outdoor_temperature_state
+ - inlet_flow_temperature_state
+ - return_flow_temperature_state
+
+| Enum eSensorErrorState  in [safety.h](main/safety.h) | Value  | Description          |
+|------------------------------------------------------|--------|----------------------|
+| SENSOR_NO_ERROR                                      | 0      |                      |
+| SENSOR_TOO_HIGH                                      | 1      |  Sanity check failed |
+| SENSOR_TOO_LOW                                       | 2      |  Sanity check failed |
+| SENSOR_UNCHANGED                                     | 3      |  Sanity check failed |
+| SENSOR_NOT_FOUND                                     | 4      |  No Communication    |
+
+
+
+## Hardware
 
 | Function                              | ESP32 | PLC ES32C14               |
 |---------------------------------------|-------|---------------------------|
@@ -80,3 +130,5 @@ Sntp <|-- Metrics
 | Output Safety Contact (powers Burner) | IO12  | Relay 3 NC2               |
 | Input Burner Fault                    | IO19  | Digital Input IN1         |
 | Input Temperature DS10B20             | IO04  | 1-Wire                    |
+
+