From 1115418ce14231891b1adf90cec9598204553938 Mon Sep 17 00:00:00 2001
From: Thomas Basler <thomas@familie-basler.net>
Date: Sun, 22 Sep 2024 18:46:56 +0200
Subject: [PATCH] Publish temperature only if its not NAN

---
 src/MqttHandleDtu.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/MqttHandleDtu.cpp b/src/MqttHandleDtu.cpp
index 6c8c38c..df025f1 100644
--- a/src/MqttHandleDtu.cpp
+++ b/src/MqttHandleDtu.cpp
@@ -35,7 +35,6 @@ void MqttHandleDtuClass::loop()
     MqttSettings.publish("dtu/uptime", String(millis() / 1000));
     MqttSettings.publish("dtu/ip", NetworkSettings.localIP().toString());
     MqttSettings.publish("dtu/hostname", NetworkSettings.getHostname());
-    MqttSettings.publish("dtu/temperature", String(CpuTemperature.read()));
     MqttSettings.publish("dtu/heap/size", String(ESP.getHeapSize()));
     MqttSettings.publish("dtu/heap/free", String(ESP.getFreeHeap()));
     MqttSettings.publish("dtu/heap/minfree", String(ESP.getMinFreeHeap()));
@@ -44,4 +43,9 @@ void MqttHandleDtuClass::loop()
         MqttSettings.publish("dtu/rssi", String(WiFi.RSSI()));
         MqttSettings.publish("dtu/bssid", WiFi.BSSIDstr());
     }
+
+    float temperature = CpuTemperature.read();
+    if (!std::isnan(temperature)) {
+        MqttSettings.publish("dtu/temperature", String(temperature));
+    }
 }