This dashboard can be used with any DB engine of Amazon RDS including MySQL, Aurora etc.
It uses 60s resolution and shows an average over each datapoint. An exception is “CPU Credit Usage” graph which has 5 min. average and interval length.
Add CloudWatch datasource to Grafana choosing any region, the rest of the fields can be left blank.
Create IAM user and attach the managed policy
CloudWatchReadOnlyAccess. Then put the credentials in the file
[default] aws_access_key_id = youraccesskeyid aws_secret_access_key = yoursecretaccesskey
Import this dashboard, select your region, instance and see the graphs.