Merge branch 'MoonModules:mdev' into mdev

wled00/data/index.js

@@ -1951,6 +1951,18 @@ function readState(s,command=false)
 	if (s.error && s.error != 0) {
 	  var errstr = "";
 	  switch (s.error) {
+		case  1:
+			errstr = "Denied!";
+			break;
+		case  3:
+			errstr = "Buffer locked!";
+			break;
+		case  8:
+			errstr = "Effect RAM depleted!";
+			break;
+		case  9:
+			errstr = "JSON parsing error!";
+			break;
 		case 10:
 		  errstr = "Could not mount filesystem!";
 		  break;
@@ -1963,6 +1975,9 @@ function readState(s,command=false)
 		case 13:
 		  errstr = "Missing ir.json.";
 		  break;
+		case 14:
+		  errstr = "Missing remote.json.";
+		  break;
 		case 19:
 		  errstr = "A filesystem error has occured.";
 		  break;

wled00/improv.cpp

@@ -50,6 +50,7 @@ void handleImprovPacket() {
   uint8_t rpcCommandType = 0;
   char rpcData[128];
   rpcData[0] = 0;
+  if (!Serial) return; // WLEDMM avoid reading from unconnected USB-CDC
 
   while (!timeout) {
     if (Serial.available() < 1) {

wled00/wled_serial.cpp

@@ -42,6 +42,7 @@ void updateBaudRate(uint32_t rate){
 // RGB LED data return as JSON array. Slow, but easy to use on the other end.
 void sendJSON(){
   if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut) {
+    if (!Serial) return; // WLEDMM avoid writing to unconnected USB-CDC
     uint16_t used = strip.getLengthTotal();
     Serial.write('[');
     for (uint16_t i=0; i<used; i++) {
@@ -55,6 +56,7 @@ void sendJSON(){
 // RGB LED data returned as bytes in TPM2 format. Faster, and slightly less easy to use on the other end.
 void sendBytes(){
   if (!pinManager.isPinAllocated(hardwareTX) || pinManager.getPinOwner(hardwareTX) == PinOwner::DebugOut) {
+    if (!Serial) return; // WLEDMM avoid writing to unconnected USB-CDC
     Serial.write(0xC9); Serial.write(0xDA);
     uint16_t used = strip.getLengthTotal();
     uint16_t len = used*3;