I have already made two signals humidity and light shown in payload_fields in debug message, how can I seperate them into two independent value or two topics? Because after the MQTT IN node, I need to display two signals in the chart which need the real value of the signals.
Another one is I only have one topic now which is /devices//up of ttn, how can I make this topic into /devices//up/humidity or /devices//up/light, because now if I set the topic into /devices//up/humidity,there will be nothing shown in debug window.
Thanks so much!