I’m logging my central heating floor distribution unit. There are 12 groups, i’m Measuring the in and return temperature. So in total 24 sensors reading temps every 30 seconds.
I use ds18b20 sensors connected to a rpi with node red. Node red also calculates the delta temps and sends the readings over MQTT. Besides that node red converts the serial number of the sensor to a meaningful name.
Running for 7 months now without any problems.
It’s not hard to setup.
The node-red flow is faily simple:
