esphome:
  on_boot:
    then:
      - output.esp8266_pwm.set_frequency:
          id: out
          frequency: 100Hz
      - output.esp8266_pwm.set_frequency:
          id: out2
          frequency: !lambda return 200.0f;

output:
  - platform: esp8266_pwm
    id: out
    pin: 4
    frequency: 50Hz
  - platform: esp8266_pwm
    id: out2
    pin: 5