esphome/tests/component_tests/binary_sensor/test_binary_sensor.yaml

---
esphome:
  name: test
  platform: ESP8266
  board: d1_mini_lite

binary_sensor:
  - platform: gpio
    id: bs_1
    name: test bs1
    internal: true
    pin:
      number: D0
  - platform: gpio
    id: bs_2
    name: test bs2
    internal: false
    pin:
      number: D1