From d2981dc8b1cd33dcd406c5adf2afe0e750f1fb6b Mon Sep 17 00:00:00 2001
From: wellenvogel <andreas@wellenvogel.de>
Date: Thu, 9 Dec 2021 17:17:27 +0100
Subject: [PATCH] avoid initial crash in handleBoatSpeed

---
 lib/nmea2kto0183/N2kDataToNMEA0183.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/nmea2kto0183/N2kDataToNMEA0183.cpp b/lib/nmea2kto0183/N2kDataToNMEA0183.cpp
index a7802f0..41c95ed 100644
--- a/lib/nmea2kto0183/N2kDataToNMEA0183.cpp
+++ b/lib/nmea2kto0183/N2kDataToNMEA0183.cpp
@@ -259,7 +259,7 @@ private:
             updateDouble(boatData->STW, WaterReferenced);
             unsigned long now = millis();
             double MagneticHeading = (boatData->Heading->isValid(now) && boatData->Variation->isValid(now)) ? boatData->Heading->getData() + boatData->Variation->getData() : NMEA0183DoubleNA;
-            if (NMEA0183SetVHW(NMEA0183Msg, boatData->Heading->getData(), MagneticHeading, WaterReferenced,talkerId))
+            if (NMEA0183SetVHW(NMEA0183Msg, boatData->Heading->getDataWithDefault(NMEA0183DoubleNA), MagneticHeading, WaterReferenced,talkerId))
             {
                 SendMessage(NMEA0183Msg);
             }