The video (not mine!) explains the settings of a similar system I am using. For more info, go to http://openenergymonitor.org/emon/ Other sites where I publish live data: http://daturach.github.io/ http://emoncms.org/daturach
Hands-on activity of Internet of Things course in Politecnico di Milano
This channel monitors the air and water temperature of my 10ft pool.
Monitoring of a solar installation with 24V 50W panel, LS1024B PWM controller, 3S10P 33Ah 18650 battery. Used Raspberry Pi3 to decode controller data and ESP8266 module to communicate with ThingSpeak
Home linux box as per http://community.thingspeak.com/2014/05/official-tutorial-monitoring-linux-server-statistics/