Sensor have no value in HA after restart (no retain)

[gericho]

Thank you very much for this piece of software, this is awesome!
Just to understand, if it is possible to send the MQTT with the retian flag so after a Home Assistant restart, it'll show the last value instead of waiting half an hour in order to retrieve the new one. Is that possible?

Thank you

[XMaarten]

You can solve this by adding true to the client.publish, like this:
client.publish((baseTopic + "temperature").c_str(), buffer, true);