Esphome example blink
You would think that blinking an LED is a no-brainer, but in ESPHome there are many methods that you can use to blink an LED on a GPIO port.
The most complex is to use a PWM output, but I just wanted to blink an LED.
# Blink the green LED on D5 (GPIO14) output: - platform: gpio pin: number: D5 mode: output id: greenLED interval: - interval: 500ms then: - output.turn_on: greenLED - delay: 250ms - output.turn_off: greenLED