@mfalkvidd Thanks for the assistance!

@lozzer65 I'm playing with node red and a mock TCP gateway at the moment and looking at your code I think the problem is that rather than msg.payload.nodeId it should be msg.nodeId and msg.payload.childSensorId should be msg.childSensorId. I realise you've moved on to MQTT but thought I'd mention it in case others come looking.

This might offer some ideas:

http://cactus.io/projects/weather/arduino-weather-station-shelter