Only update on output change, for more stabilityHEADmaster

Some sporadic error would flip the order of lines, and print chars in
the clear spaces. Print more infrequently to mitigate the issue

1 files changed, 11 insertions, 6 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 4809d0f..bb43886 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -13,6 +13,7 @@ HTTPClient http;
 unsigned long aPIPreviousMillis = 0;
 const long aPIInterval = 600000; // call API every 10 minutes
 String weatherText = "";
+String previousOutputText = "";
 
 String weatherDescription(int code, bool isDay) {
   switch(code) {
@@ -188,10 +189,12 @@ void setup() {
 }
 
 void loop() {
+  String outputText = "";
   if (millis() - aPIPreviousMillis >= aPIInterval) {
     aPIPreviousMillis = millis();
     callAPI();
   }
+  outputText = weatherText + "\n\r";
 
   // Get Unix epoch timestamp
   /*char buffer [3];
@@ -201,14 +204,16 @@ void loop() {
   Serial.print(truncatedEpoch);
   Serial.print(" ");*/
 
-  Serial.print(weatherText);
-  Serial.println();
-
-  delay(50);
   // https://github.com/ropg/ezTime#getting-date-and-time
   // 16:36:15 Sat 16 Aug
-	String time_formatted = CopenhagenTime.dateTime("H:i:s D d M");
-  Serial.println(time_formatted);
+  String time_formatted = CopenhagenTime.dateTime("H:i:s D d M");
+  outputText += time_formatted;
+
+  if (outputText != previousOutputText)
+  {
+    Serial.println(outputText);
+    previousOutputText = outputText;
+  }
 
   events(); // Run NTP
 }