Display imported CSV file as time series

Grafana Time Series Panel
1

Hello Forum,

Am completely new to Grafana and can not figure out how to display sensor data on a graph in Grafana Cloud.

Have an embedded IoT device that measures voltage at a constant sampling rate (10ms interval), the MCU outputs a CSV file. The CSV does not contain any timestamps, just voltage values like that:

image
image736×727 14.8 KB

This is best practice to reduce file size (very important aspect in IoT) and as sampling rate is constant, this should not have any drawbacks.

My problem is that i can not find a way to display the contents of my CSV file as a graph or time series within Grafana. Is there any way i could tell Grafana what was the sampling rate and let Grafana draw the graph based on that info?

2

Welcome to the Grafana forums.

I do not think you can display in Grafana a CSV that contains only values, but no timestamps. Time series visualizations are, of course, what most people use Grafana for. If you know the sampling rate of your measurements, then I am afraid you will have to find a way to insert those timestamps and the voltage reading into a timeseries database that Grafana plays nice with.

Good luck!