How to log to my own log file?

[tom_l]

There’s the file notifier integration. I used to use it to log CSV data before I had InfluxDB set up.

File

How do I create a CSV file and append values to it?

Use the file notification service: notify: - name: write_to_csv platform: file filename: my_csv_file.csv In use: action: - service: notify.write_to_csv data: message: "some,csv,data,to,write,here" You can use templates in the message, e.g. action: - service: notify.write_to_csv data: message: "{{ now(),states('sensor.temperature'),states('sensor.humidity') }}"