Refactored error logger to reduce memory footprint

src/helper.hpp

@@ -28,13 +28,17 @@ SOFTWARE.
 #include <main.hpp>
 
 #define ERR_FILENAME "/error.log"
-#define ERR_COUNT 15
+#define ERR_FILENAME2 "/error2.log"
+#define ERR_FILEMAXSIZE 250
 
 #define RUNTIME_FILENAME "/runtime.log"
 
 // tcp cleanup
 void tcp_cleanup();
 
+// Error logging
+void writeErrorLog(const char *format, ...);
+
 // Sleep mode
 void deepSleep(int t);
 
@@ -67,16 +71,6 @@ class SerialDebug {
   static Logging* getLog() { return &Log; }
 };
 
-class ErrorFileLog {
- private:
-  String _errors[ERR_COUNT];
-
- public:
-  ErrorFileLog();
-  void addEntry(String error);
-  void save();
-};
-
 class FloatHistoryLog {
  private:
   String _fName;