safe_mode is its own component (ref):
ota:
- platform: esphome
password: !secret ota_password
safe_mode:
dallas becomes one_wire like this (ref):
one_wire:
- platform: gpio
pin: D7
and the sensors change to dallas_temp (ref) (for temperature sensors like DS18B20) including the update_interval here rather than under one_wire:
sensor:
- platform: dallas_temp
update_interval: 30s
address: ...