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Fix valueNoSendCompare: DPT Conversion Fail Resulted in Setting KO to 0

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Cornelius Köpp 2024-11-01 19:28:25 +01:00
parent 84a0ce3c22
commit 9a7b6a5e80
1 changed files with 7 additions and 1 deletions
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8
src/knx/group_object.cpp
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@ -301,7 +301,13 @@ bool GroupObject::valueNoSendCompare(const KNXValue& value, const Dpt& type)
// convert new value to given dtp
uint8_t newData[_dataLength];
memset(newData, 0, _dataLength);
KNX_Encode_Value(value, newData, _dataLength, type);
const bool encodingDone = KNX_Encode_Value(value, newData, _dataLength, type);
if (!encodingDone)
{
// value conversion to DPT failed
// do NOT update the value of the KO!
return false;
}
// check for change in converted value / update value on change only
const bool dataChanged = memcmp(_data, newData, _dataLength);