[P073] Correct wrong content shown on 74HC595 displays

src/_P073_7DGT.ino

@@ -42,6 +42,13 @@
 //
 
 /** History
+ * 2026-08-06 tonhuisman: Move display specific code in separate derived structs from P073_data_struct, and deduplicate code where possible
+ * 2026-07-27 tonhuisman: Restructure plugin_struct source into separate files per supported display model for maintainability
+ *                        Some minor code optimization for 74HC595 displays
+ * 2026-07-25 tonhuisman: Use Arduino pin initialization as some ESPs don't properly set up their pins with DIRECT_GPIO_OUTPUT
+ * 2026-07-24 tonhuisman: Fix 7dn and 7dt commands for 74HC595 to show data correctly for display setups with less than 8 digits
+ *                        Improve update speed for 74HC595 by using DIRECT_GPIO library for all GPIO commands (also for TM1637 and MAX7219)
+ * 2026-07-21 tonhuisman: Fix wrong content displayed on 74HC595 displays (multiple fixes)
  * 2026-01-17 tonhuisman: Revert to using 'regular' Arduino GPIO functions for TM1637 displays on ESP8266
  * 2026-01-12 tonhuisman: Fix initialization of number of digits when upgrading to 20260108 build,
  *                        formatted source with new Uncrustify config
@@ -308,21 +315,28 @@ boolean Plugin_073(uint8_t function, struct EventStruct *event, String& string)
 
     case PLUGIN_INIT:
     {
-      initPluginTaskData(event->TaskIndex, new (std::nothrow) P073_data_struct());
-      P073_data_struct *P073_data =
-        static_cast<P073_data_struct *>(getPluginTaskData(event->TaskIndex));
-
-      if (nullptr != P073_data) {
-        P073_data->init(event);
+      P073_data_struct *P073_data = nullptr;
 
+      switch (P073_CFG_DISPLAYTYPE)
+      {
+        case P073_TM1637_4DGTCOLON:
+        case P073_TM1637_4DGTDOTS:
+        case P073_TM1637_6DGT:
+          P073_data = new (std::nothrow) P073_TM1637(event);
+          break;
+        case P073_MAX7219_8DGT:
+          P073_data = new (std::nothrow) P073_MAX7219(event);
+          break;
         # if P073_USE_74HC595
-
-        if (P073_data->is74HC595Matrix()) {
-          Scheduler.setPluginTaskTimer(10, event->TaskIndex, 0);
-        }
+        case P073_74HC595_2_8DGT:
+          P073_data = new (std::nothrow) P073_74HC595(event);
+          break;
         # endif // if P073_USE_74HC595
+      }
 
-        success = true;
+      if (nullptr != P073_data) {
+        initPluginTaskData(event->TaskIndex, P073_data);
+        success = P073_data->init(event);
       }
       break;
     }
@@ -375,7 +389,7 @@ boolean Plugin_073(uint8_t function, struct EventStruct *event, String& string)
         success = P073_data->plugin_fifty_per_second(event);
 
         if (success) {
-          Scheduler.setPluginTaskTimer(0, event->TaskIndex, 0);
+          Scheduler.setPluginTaskTimer(5, event->TaskIndex, 0);
         }
 
         // success = false; // Don't send out to (not configurable) Controllers or Rules