remove mega328 from default build env list

GITHUB_SHA.h

@@ -1 +1 @@
-#define GITHUB_SHA "devel-stm32EC 202401280047Z"
+#define GITHUB_SHA "devel-stm32EC 202402041220Z"

WiThrottle.cpp

@@ -187,6 +187,7 @@ void WiThrottle::parse(RingStream * stream, byte * cmdx) {
       }
       break;
     case 'N':  // Heartbeat (2), only send if connection completed by 'HU' message
+      sendIntro(stream);
       StringFormatter::send(stream, F("*%d\n"), heartrateSent ? HEARTBEAT_SECONDS : HEARTBEAT_PRELOAD); // return timeout value
       break;
     case 'M': // multithrottle
@@ -498,6 +499,8 @@ void WiThrottle::getLocoCallback(int16_t locoid) {
 }
 
 void WiThrottle::sendIntro(Print* stream) {
+  if (introSent) // sendIntro only once
+    return;
   introSent=true; 
   StringFormatter::send(stream,F("VN2.0\nHTDCC-EX\nRL0\n"));
   StringFormatter::send(stream,F("HtDCC-EX v%S, %S, %S, %S\n"), F(VERSION), F(ARDUINO_TYPE), DCC::getMotorShieldName(), F(GITHUB_SHA));

platformio.ini

@@ -12,7 +12,6 @@
 default_envs = 
 	mega2560
 	uno
-	mega328
 	unowifiR2
 	nano
 	samd21-dev-usb

version.h

@@ -3,10 +3,11 @@
 
 #include "StringFormatter.h"
 
-#define VERSION "5.2.27stm32ECvfmdns"
-// 5.2.XX - Fix Ethernet cable disconnected message, wait for DHCP
-// 5.2.XX - MDNS Generic library integration for Ethernet
-// 5.2.XX - Variable frequency for DC mode
+#define VERSION "5.3.4"
+// 5.3.4  - Bugfix: WiThrottle sendIntro after initial N message as well
+// 5.3.3  - Fix Ethernet cable disconnected message, wait for DHCP
+// 5.3.2  - MDNS Generic library integration for Ethernet
+// 5.3.1  - Variable frequency for DC mode
 // 5.2.27 - Bugfix: IOExpander memory allocation
 // 5.2.26 - Silently ignore overridden HAL defaults
 //        - include HAL_IGNORE_DEFAULTS macro in EXRAIL