Feature: Set/obtain DPL upper power limit via MQTT

hoylabs · Jun 15, 2024 · 1f6fdb7 · 1f6fdb7 · ButterBetzi · Aug 19, 2024
1 parent 5a007e5
commit 1f6fdb7
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/include/MqttHandlePowerLimiter.h b/include/MqttHandlePowerLimiter.h
@@ -23,7 +23,8 @@ class MqttHandlePowerLimiterClass {
         VoltageStartThreshold,
         VoltageStopThreshold,
         FullSolarPassThroughStartVoltage,
-        FullSolarPassThroughStopVoltage
+        FullSolarPassThroughStopVoltage,
+        UpperPowerLimit
     };
 
     void onMqttCmd(MqttPowerLimiterCommand command, const espMqttClientTypes::MessageProperties& properties, const char* topic, const uint8_t* payload, size_t len, size_t index, size_t total);

diff --git a/src/MqttHandlePowerLimiter.cpp b/src/MqttHandlePowerLimiter.cpp
@@ -44,6 +44,7 @@ void MqttHandlePowerLimiterClass::init(Scheduler& scheduler)
     subscribe("threshold/voltage/full_solar_passthrough_start", MqttPowerLimiterCommand::FullSolarPassThroughStartVoltage);
     subscribe("threshold/voltage/full_solar_passthrough_stop", MqttPowerLimiterCommand::FullSolarPassThroughStopVoltage);
     subscribe("mode", MqttPowerLimiterCommand::Mode);
+    subscribe("upper_power_limit", MqttPowerLimiterCommand::UpperPowerLimit);
 
     _lastPublish = millis();
 }
@@ -75,6 +76,8 @@ void MqttHandlePowerLimiterClass::loop()
 
     auto val = static_cast<unsigned>(PowerLimiter.getMode());
     MqttSettings.publish("powerlimiter/status/mode", String(val));
+
+    MqttSettings.publish("powerlimiter/status/upper_power_limit", String(config.PowerLimiter.UpperPowerLimit));
 
     MqttSettings.publish("powerlimiter/status/inverter_update_timeouts", String(PowerLimiter.getInverterUpdateTimeouts()));
 
@@ -174,6 +177,11 @@ void MqttHandlePowerLimiterClass::onMqttCmd(MqttPowerLimiterCommand command, con
             MessageOutput.printf("Setting full solar passthrough stop voltage to: %.2f V\r\n", payload_val);
             config.PowerLimiter.FullSolarPassThroughStopVoltage = payload_val;
             break;
+        case MqttPowerLimiterCommand::UpperPowerLimit:
+            if (config.PowerLimiter.UpperPowerLimit == intValue) { return; }
+            MessageOutput.printf("Setting upper power limit to: %d W\r\n", intValue);
+            config.PowerLimiter.UpperPowerLimit = intValue;
+            break;
     }
 
     // not reached if the value did not change