Add delays for stability.

src/wordclock_esp8266.cpp

@@ -46,9 +46,6 @@
 #include "wordclock_constants.h"
 #include "render_functions.h"
 
-// DEBUG
-uint32_t dbg_counter = 0; // TODO RM
-
 const String state_names[] = {"Clock", "DiClock", "Spiral", "Tetris", "Snake", "PingPong", "Hearts"};
 // PERIODS for each state (different for stateAutoChange or Manual mode)
 const uint16_t PERIODS[2][NUM_STATES] = {{PERIOD_TIME_VISU_UPDATE, // stateAutoChange = 0
@@ -110,6 +107,8 @@ NightModeTimes_st night_mode_times = {
     NIGHTMODE_END_HR,
     NIGHTMODE_END_MIN};
 
+uint32_t heartbeat_counter = 0;  // for heartbeat on-time in seconds
+
 // ----------------------------------------------------------------------------------
 //                                        SETUP
 // ----------------------------------------------------------------------------------
@@ -292,65 +291,48 @@ void loop()
     static unsigned long last_state_change = 0;    // time of last state change
 
     handleOTA(); // handle OTA
-    yield();
 
     webserver.handleClient(); // handle webserver
-    yield();
 
     // send regularly heartbeat messages via UDP multicast
     if ((current_time_ms - last_heartbeat) > PERIOD_HEARTBEAT)
     {
-        Serial.printf("a");
-        Serial.println();
         send_heartbeat(); // send heartbeat update
         last_heartbeat = CURRENT_TIME_MS;
-        yield();
-        Serial.printf("A");
     }
 
     if (!night_mode && ((current_time_ms - last_animation_step) > PERIODS[state_auto_change][current_state]) && ((current_time_ms - last_led_direct) > TIMEOUT_LEDDIRECT))
     {
-        Serial.printf("b");
         handle_current_state(); // handle current state
         last_animation_step = CURRENT_TIME_MS;
-        yield();
-        Serial.printf("B");
+        delay(10);
     }
 
     if ((current_time_ms - last_matrix_update) > PERIOD_MATRIX_UPDATE)
     {
-        Serial.printf("c");
         update_matrix(); // update matrix
         last_matrix_update = CURRENT_TIME_MS;
-        yield();
-        Serial.printf("C");
+        delay(10);
     }
 
     handle_button(); // handle button press
 
     if (!night_mode && state_auto_change && (current_time_ms - last_state_change > PERIOD_STATE_CHANGE))
     {
-        Serial.printf("d");
         update_state_machine(); // handle state changes
         last_state_change = CURRENT_TIME_MS;
-        yield();
-        Serial.printf("D");
     }
 
     if ((current_time_ms - last_ntp_update) > PERIOD_NTP_UPDATE)
     {
-        Serial.printf("e");
         ntp_time_update(&last_ntp_update); // ntp time update
-        yield();
-        Serial.printf("E");
+        delay(10);
     }
 
     if ((current_time_ms - last_nightmode_check) > PERIOD_NIGHTMODE_CHECK)
     {
-        Serial.printf("f");
         check_night_mode(); // check night mode
         last_nightmode_check = CURRENT_TIME_MS;
-        Serial.printf("F");
     }
 }
 
@@ -468,8 +450,10 @@ void update_matrix()
 void send_heartbeat()
 {
     logger.log_string("Heartbeat, state: " + state_names[current_state] + ", FreeHeap: " + ESP.getFreeHeap() +
-                      ", HeapFrag: " + ESP.getHeapFragmentation() + ", MaxFreeBlock: " + ESP.getMaxFreeBlockSize() + "\nCounter: " +
-                      dbg_counter + " , Hours: " + (float)(dbg_counter) / 3600.0 + "\n"); // TODO CHANGE
+                      ", HeapFrag: " + ESP.getHeapFragmentation() + ", MaxFreeBlock: " + ESP.getMaxFreeBlockSize() + 
+                      "\nCounter: " + heartbeat_counter + ", Hours: " + (float)(heartbeat_counter) / 3600.0 + "\n");
+    heartbeat_counter++;
+
     // Check wifi status
     if (WiFi.status() != WL_CONNECTED)
     {
@@ -477,7 +461,6 @@ void send_heartbeat()
         led_matrix.grid_add_pixel(0, 5, colors_24bit[1]);
         led_matrix.draw_on_matrix_instant();
     }
-    dbg_counter++; // TODO RM
 }
 
 /**