Added support for 32 chars RT.

TEF6686_ESP32.ino

@@ -2670,7 +2670,7 @@ void readRds() {
     RDSstatus = radio.rds.hasRDS;
     ShowRDSLogo(RDSstatus);
     if (RDSstatus == 0 && screenmute == false) {
-      tft.setTextColor(PrimaryColor);
+      tft.setTextColor(SecondaryColor);
       tft.setFreeFont(FONT14);
       if (advancedRDS) tft.drawString(PIold, 244, 66, GFXFF); else tft.drawString(PIold, 244, 183, GFXFF);
       tft.setFreeFont(FONT14);
@@ -3160,24 +3160,24 @@ void showRadioText() {
     if (millis() - rtticker >= 350) {
       xPos -= charWidth;
       if (advancedRDS) {
-        if (xPos < -tft.textWidth(radio.rds.stationText) + (charWidth * 14)) xPos = 6;
+        if (xPos < -tft.textWidth(radio.rds.stationText + " " + radio.rds.stationText32) + (charWidth * 14)) xPos = 6;
         sprite2.setFreeFont(FONT7);
         sprite2.setTextDatum(ML_DATUM);
         sprite2.fillSprite(BackgroundColor);
         sprite2.setTextColor(PrimaryColor);
-        sprite2.drawString(radio.rds.stationText, xPos, 4, GFXFF);
+        sprite2.drawString(radio.rds.stationText + " " + radio.rds.stationText32, xPos, 4, GFXFF);
         sprite2.pushSprite(35, 222);
       } else {
-        if (xPos < -tft.textWidth(radio.rds.stationText) + (charWidth * 24)) xPos = 6;
+        if (xPos < -tft.textWidth(radio.rds.stationText + " " + radio.rds.stationText32) + (charWidth * 24)) xPos = 6;
         sprite.setFreeFont(FONT7);
         sprite.setTextDatum(ML_DATUM);
         sprite.fillSprite(BackgroundColor);
         sprite.setTextColor(PrimaryColor);
-        sprite.drawString(radio.rds.stationText, xPos, 4, GFXFF);
+        sprite.drawString(radio.rds.stationText + " " + radio.rds.stationText32, xPos, 4, GFXFF);
         sprite.pushSprite(1, 222);
       }
       rtticker = millis();
-      RTold = radio.rds.stationText;
+      RTold = radio.rds.stationText + " " + radio.rds.stationText32;
       cleanup = true;
     }
   } else if (cleanup == true) {
@@ -3203,6 +3203,7 @@ void showRadioText() {
   tft.drawLine(0, 239, 320, 239, FrameColor);
 }
 
+
 void BuildMenu() {
   advancedRDS = false;
   tft.setFreeFont(FONT7);

src/TEF6686.cpp

@@ -436,7 +436,7 @@ void TEF6686::readRDS(bool showrdserrors)
 
         case RDS_GROUP_2A: {
             if (showrdserrors || rds.correct) {
-              // RT decoder
+              // RT decoder (64 characters)
               rds.hasRT = true;
               rds.rtAB = (bitRead(rds.rdsB, 4));                                                  // Get AB flag
 
@@ -464,6 +464,32 @@ void TEF6686::readRDS(bool showrdserrors)
             }
           } break;
 
+        case RDS_GROUP_2B: {
+            if (showrdserrors || rds.correct) {
+              // RT decoder (32 characters)
+              rds.hasRT = true;
+              rds.rtAB = (bitRead(rds.rdsB, 4));                                                  // Get AB flag
+
+              if (rds.rtAB != rtABold) {                                                          // Erase old RT, because of AB change
+                for (byte i = 0; i < 33; i++) {
+                  rt_buffer32[i] = 0x20;
+                }
+                rt_buffer32[33] = '\0';
+                rtABold = rds.rtAB;
+              }
+
+              offset = (rds.rdsB & 0xf) * 2;                                                      // Get RT character segment
+              rt_buffer32[offset + 0] = rds.rdsD >> 8;                                            // First character of segment
+              rt_buffer32[offset + 1] = rds.rdsD & 0xff;                                          // Second character of segment
+
+              wchar_t RTtext[33] = L"";                                                           // Create 16 bit char buffer for Extended ASCII
+              RDScharConverter(rt_buffer32, RTtext, sizeof(RTtext) / sizeof(wchar_t), true);      // Convert 8 bit ASCII to 16 bit ASCII
+              rds.stationText32 = convertToUTF8(RTtext);                                          // Convert RDS characterset to ASCII
+              rds.stationText32 = extractUTF8Substring(rds.stationText32, 0, 32, true);           // Make sure RT does not exceed 32 characters
+              rds.stationText32 += "    ";                                                        // Add extra spaces
+            }
+          } break;
+
         case RDS_GROUP_3A: {
             // RT+ init
             if (rds.rdsD == 0x4BD7) {                                                             // Check for RT+ application
@@ -636,6 +662,7 @@ void TEF6686::clearRDS (bool fullsearchrds)
   uint8_t i;
   rds.stationName = "";
   rds.stationText = "";
+  rds.stationText32 = "";
   rds.RTContent1 = "";
   rds.RTContent2 = "";
   rds.PTYN = "";
@@ -647,6 +674,7 @@ void TEF6686::clearRDS (bool fullsearchrds)
     PTYNtext[i] = L'\0';
   }
   for (i = 0; i < 65; i++) rt_buffer[i] = 0;
+  for (i = 0; i < 33; i++) rt_buffer32[i] = 0;
   for (i = 0; i < 18; i++) rds.stationType[i] = 0;
   for (i = 0; i < 6; i++) rds.picode[i] = 0;
 

src/TEF6686.h

@@ -97,6 +97,7 @@ typedef struct _rds_ {
   byte MS;
   String stationName;
   String stationText;
+  String stationText32;
   String RTContent1;
   String RTContent2;
   String PTYN;
@@ -214,6 +215,7 @@ class TEF6686 {
     bool rt_process;
     char rt_buffer[65];
     char rt_buffer2[65];
+	char rt_buffer32[33];
     bool useRTPlus = true;
     bool ABold;
     char stationTextBuffer[65];