 
 
 
-          OTV0P2BASE::serialPrintlnAndFlush("!TX not impl"); // FAIL
+          OTV0P2BASE::serialPrintlnAndFlush(F("!TX not impl")); // FAIL
 #endif // !defined(ENABLE_OTSECUREFRAME_ENCODING_SUPPORT) 
           }
         }

      oldDropped = dropped;
      }
#endif
#if 0 && defined(DEBUG) && !defined(ENABLE_TRIMMED_MEMORY)
    // Filtered out messages are not an error.
    const uint8_t filtered = PrimaryRadio.getRXMsgsFilteredRecent();
    static uint8_t oldFiltered;


  // If still waiting for a poll after a boost request,
  // arrange to send extra alerts about once every two minutes,
  // no closer together than every about every 8 seconds,
  // randomly so as to minimise collisions with other regular traffic.
  if(waitingForPollAfterBoostRequest && (sec == (OTV0P2BASE::randRNG8() & 0x38)))
    { sendCC1AlertByRFM23B(); }

  return(false); // No human interaction this tick...
