HTTP Error Bad Gateway - any data source

This is my first attempt to use Grafana. I installed Grfana on a raspberry Pi following this link Install Grafana on Raspberry Pi. Now I login to Grafana to add data sources. But no matter which data source I pick it gives same error "HTTP Error Bad Gateway "

Any solution to this.

Hi @rdxtfc ,
If you followed that tutorial, then you have only installed Grafana. That’s a great start, but you still need to install a datasource.

I would try installing Prometheus and Node Exporter on your Pi. With that setup, you can add Prometheus as a datasource and then monitor your Pi. I’ll have to poke around for a good guide on that…