From 53214097279c7f7a2f8444c797ad0ccf7cab6fac Mon Sep 17 00:00:00 2001
From: Fabian Schlenz <mail@fabianonline.de>
Date: Thu, 30 May 2019 13:09:38 +0200
Subject: [PATCH] Added support for reporting for freeHeap via MQTT.

---
 include/my_mqtt.h | 2 ++
 src/mqtt.cpp      | 8 ++++++++
 src/pitrix.cpp    | 6 ++++++
 3 files changed, 16 insertions(+)

diff --git a/include/my_mqtt.h b/include/my_mqtt.h
index 973172b..6c4261f 100644
--- a/include/my_mqtt.h
+++ b/include/my_mqtt.h
@@ -12,4 +12,6 @@ void mqtt_setup();
 
 void mqtt_loop();
 
+void mqtt_publish(const char* topic, int number);
+
 #endif // mqtt_H
diff --git a/src/mqtt.cpp b/src/mqtt.cpp
index 0a25415..cd24519 100644
--- a/src/mqtt.cpp
+++ b/src/mqtt.cpp
@@ -69,3 +69,11 @@ void mqtt_loop() {
     mqtt_client.loop();
   }
 }
+
+void mqtt_publish(const char* topic, int number) {
+    char t[127];
+    sprintf(t, MQTT_TOPIC "%s", topic);
+    char b[32];
+    sprintf(b, "%d", number);
+    mqtt_client.publish(t, b);
+}
diff --git a/src/pitrix.cpp b/src/pitrix.cpp
index c51f5b6..f01aeb0 100644
--- a/src/pitrix.cpp
+++ b/src/pitrix.cpp
@@ -68,6 +68,12 @@ void loop() {
     FastLED.show();
   }
 
+  EVERY_N_SECONDS(5) {
+      if (REPORT_FREE_HEAP) {
+          mqtt_publish("free_heap", ESP.getFreeHeap());
+      }
+  }
+
 
   if (MONITOR_LOOP_TIMES && millis()-loop_started_at>=MONITOR_LOOP_TIME_THRESHOLD) {
     LOG("Core * Loop took "); LOG(millis()-loop_started_at); LOGln("ms.");