parser_ping: add parseError signal

Remove 'noise' errors for irrelevance

Author: jaxxzer

src/protocol/parsers/parser_ping.h

@@ -45,16 +45,13 @@ class PingParser : public Parser
             if (byte == 'B') {
                 parseBuf.append(byte);
                 state++;
-            } else {
-                errors++;
             }
             break;
         case WAIT_HEADER:
             if (byte == 'R') {
                 parseBuf.append(byte);
                 state++;
             } else {
-                errors++;
                 parseBuf.clear();
                 state = WAIT_START;
             }
@@ -99,6 +96,7 @@ class PingParser : public Parser
             PingMessage msg((uint8_t*)parseBuf.data(), parseBuf.length());
             if (!msg.verifyChecksum()) {
                 errors++;
+                emit parseError();
             } else {
                 emit newMessage(msg);
                 parsed++;
@@ -119,4 +117,5 @@ class PingParser : public Parser
 
 signals:
     void newMessage(PingMessage msg);
+    void parseError();
 };