classDiagram
Inputs <|-- Control
Outputs <|-- Control
Sntp <|-- Control
Inputs <|-- Safety
Outputs <|--|> Safety

Inputs <|-- Metrics
Outputs <|-- Metrics
Control <|-- Metrics
Safety <|-- Metrics
Sntp <|-- Metrics

    class Inputs{
        +initInputs()
        -taskInput()
        +getChamberTemperature()
        +getOutdoorTemperature()
        +getInletFlowTemperature()
        +getReturnFlowTemperature()
        +getBurnerError()
    }

    class Outputs{
        +initOutputs()
        +getCirculationPumpState()
        +setCirculationPumpState()
        +getBurnerState()
        +setBurnerState()
        +getSafetyControlState()
        +setSafetyControlState()
    }

    class Control{
        +taskControl()
        -timetable
    }

    class Safety{
        +initSafety()
        -taskSafety()
        -setSafeState()
        -checkSensorSanity()
        +getSensorSanityStates()
        +getSafetyState()
    }


    class Wifi{
        +initWifi()
    }

    class Sntp{
        +initSntp()
        +getSntpState()
    }

    class Metrics{
        +initMetrics()
        -taskMetrics()
        -metrics
        +event_handler()
        +connect_wifi()
        +setMetrics()
    }

Hardware

Function	ESP32	PLC ES32C14
Output CirculationPump	IO27	Relay 1 NO1
Output Burner Fire Signal	IO14	Relay 2 NC2
Output Safety Contact (powers Burner)	IO12	Relay 3 NC2
Input Burner Fault	IO19	Digital Input IN1
Input Temperature DS10B20	IO04	1-Wire