Feature: make power meter polling intervals configurable

this change makes the respective setting accessible from the web UI.

include/PowerMeterHttpJson.h

@@ -20,6 +20,7 @@ public:
     bool init() final;
     void loop() final;
     float getPowerTotal() const final;
+    bool isDataValid() const final;
     void doMqttPublish() const final;
 
     using power_values_t = std::array<float, POWERMETER_HTTP_JSON_MAX_VALUES>;

include/PowerMeterHttpSml.h

@@ -15,6 +15,7 @@ public:
 
     bool init() final;
     void loop() final;
+    bool isDataValid() const final;
 
     // returns an empty string on success,
     // returns an error message otherwise.

include/PowerMeterProvider.h

@@ -23,9 +23,9 @@ public:
 
     virtual void loop() = 0;
     virtual float getPowerTotal() const = 0;
+    virtual bool isDataValid() const;
 
     uint32_t getLastUpdate() const { return _lastUpdate; }
-    bool isDataValid() const;
     void mqttLoop() const;
 
 protected:

include/PowerMeterSerialSdm.h

@@ -22,6 +22,7 @@ public:
     bool init() final;
     void loop() final;
     float getPowerTotal() const final;
+    bool isDataValid() const final;
     void doMqttPublish() const final;
 
 private:

src/PowerMeterHttpJson.cpp

@@ -124,6 +124,12 @@ float PowerMeterHttpJson::getPowerTotal() const
     return sum;
 }
 
+bool PowerMeterHttpJson::isDataValid() const
+{
+    uint32_t age = millis() - getLastUpdate();
+    return getLastUpdate() > 0 && (age < (3 * _cfg.PollingInterval * 1000));
+}
+
 void PowerMeterHttpJson::doMqttPublish() const
 {
     mqttPublish("power1", _powerValues[0]);

src/PowerMeterHttpSml.cpp

@@ -36,6 +36,12 @@ void PowerMeterHttpSml::loop()
     gotUpdate();
 }
 
+bool PowerMeterHttpSml::isDataValid() const
+{
+    uint32_t age = millis() - getLastUpdate();
+    return getLastUpdate() > 0 && (age < (3 * _cfg.PollingInterval * 1000));
+}
+
 String PowerMeterHttpSml::poll()
 {
     if (!_upHttpGetter) {

src/PowerMeterSerialSdm.cpp

@@ -43,6 +43,12 @@ float PowerMeterSerialSdm::getPowerTotal() const
     return _phase1Power + _phase2Power + _phase3Power;
 }
 
+bool PowerMeterSerialSdm::isDataValid() const
+{
+    uint32_t age = millis() - getLastUpdate();
+    return getLastUpdate() > 0 && (age < (3 * _cfg.PollingInterval * 1000));
+}
+
 void PowerMeterSerialSdm::doMqttPublish() const
 {
     std::lock_guard<std::mutex> l(_mutex);

webapp/src/locales/de.json

@@ -554,8 +554,9 @@
         "PowerMeterConfiguration": "Stromzähler Konfiguration",
         "PowerMeterEnable": "Aktiviere Stromzähler",
         "VerboseLogging": "@:base.VerboseLogging",
-        "PowerMeterParameter": "Power Meter Parameter",
         "PowerMeterSource": "Stromzählertyp",
+        "pollingInterval": "Abfrageintervall",
+        "seconds": "@:base.Seconds",
         "typeMQTT": "MQTT",
         "typeSDM1ph": "SDM mit 1 Phase (SDM120/220/230)",
         "typeSDM3ph": "SDM mit 3 Phasen (SDM72/630)",
@@ -598,7 +599,7 @@
         "headerKeyDescription": "Optional. Ein benutzerdefinierter HTTP header kann definiert werden. Nützlich um z.B. ein (zusätzlichen) Authentifizierungstoken zu übermitteln.",
         "headerValue": "HTTP Header - Wert",
         "timeout": "Zeitüberschreitung",
-        "milliSeconds": "ms"
+        "milliSeconds": "Millisekunden"
     },
     "powerlimiteradmin": {
         "PowerLimiterSettings": "Dynamic Power Limiter Einstellungen",

webapp/src/locales/en.json

@@ -556,8 +556,9 @@
         "PowerMeterConfiguration": "Power Meter Configuration",
         "PowerMeterEnable": "Enable Power Meter",
         "VerboseLogging": "@:base.VerboseLogging",
-        "PowerMeterParameter": "Power Meter Parameter",
         "PowerMeterSource": "Power Meter type",
+        "pollingInterval": "Polling Interval",
+        "seconds": "@:base.Seconds",
         "typeMQTT": "MQTT",
         "typeSDM1ph": "SDM for 1 phase (SDM120/220/230)",
         "typeSDM3ph": "SDM for 3 phases (SDM72/630)",
@@ -600,7 +601,7 @@
         "headerKeyDescription": "Optional. A custom HTTP header key-value pair can be defined. Useful, e.g., to send an (additional) authentication token.",
         "headerValue": "HTTP Header - Value",
         "timeout": "Timeout",
-        "milliSeconds": "ms"
+        "milliSeconds": "Milliseconds"
     },
     "powerlimiteradmin": {
         "PowerLimiterSettings": "Dynamic Power Limiter Settings",

webapp/src/views/PowerMeterAdminView.vue

@@ -51,6 +51,14 @@
                         :text="$t('powermeteradmin.SDM')"
                         textVariant="text-bg-primary"
                         add-space>
+
+                    <InputElement :label="$t('powermeteradmin.pollingInterval')"
+                        v-model="powerMeterConfigList.serial_sdm.polling_interval"
+                        type="number"
+                        min=1
+                        max=15
+                        :postfix="$t('powermeteradmin.seconds')" />
+
                     <div class="row mb-3">
                         <label for="sdmaddress" class="col-sm-2 col-form-label">{{ $t('powermeteradmin.sdmaddress') }}:</label>
                         <div class="col-sm-10">
@@ -70,6 +78,14 @@
                             v-model="powerMeterConfigList.http_json.individual_requests"
                             type="checkbox"
                             wide />
+
+                        <InputElement :label="$t('powermeteradmin.pollingInterval')"
+                            v-model="powerMeterConfigList.http_json.polling_interval"
+                            type="number"
+                            min=1
+                            max=15
+                            :postfix="$t('powermeteradmin.seconds')"
+                            wide />
                     </CardElement>
 
                     <div class="alert alert-secondary mt-5" role="alert">
@@ -156,6 +172,13 @@
                             textVariant="text-bg-primary"
                             add-space>
 
+                        <InputElement :label="$t('powermeteradmin.pollingInterval')"
+                            v-model="powerMeterConfigList.http_sml.polling_interval"
+                            type="number"
+                            min=1
+                            max=15
+                            :postfix="$t('powermeteradmin.seconds')" />
+
                         <HttpRequestSettings :cfg="powerMeterConfigList.http_sml.http_request" />
                     </CardElement>