YAML Ain’t Markup Language, some believe it to be Yet Another Markup Language, but the official acronym is recursive.
YAML is a human friendly data serialisation standard for all programming languages.
# comment function: - item 1 data: - item 1a - item 1b - item 2 data
Below is a real Home Assistant example, which will be covered in detail later in the guide, but shows the YAML to add a basic IP webcam.
# old android phone android_ip_webcam: - host: 192.168.10.100 port: 8080 name: 'Cam 1' sensors: - battery_level - battery_temp switches: - torch - video_recording
YAML is a little picky on the formatting and the right number of spaces is required. Luckily, Home Assistant Configurator shows a red warning exclamation (!) mark to depict invalid formatting and a green tick for valid.
The Server Controls in Configuration also allows to run a ‘Configuration validation’ check to confirm all configuration files are valid in formatting and expected values.
Next: Step 4: Looks