Graphing Sensor Data with Grafana

To view trending sensor data, I installed collectd (with the "sensors" plugin enabled), InfluxDB, and Grafana. For some series, Grafana displayed wierd graphs with what looked like two values for one interval. I worked around this by changing the Influx query from

SELECT "value" FROM "sensors_value" WHERE ("type" = 'temperature') AND $timeFilter GROUP BY "type_instance"


SELECT median("value") FROM "sensors_value" WHERE ("type" = 'temperature') AND $timeFilter GROUP BY time(10s), "type_instance"

This seemed to smooth out the line quite a bit.