KC868-A8 with Motion Sensor HC-SR501

[vijjav]

I need help connecting pir motion sensor with A8 board. Should i connect with DI 1-8 or s2, s3 terminals? 

Here is the code part I am currently using. 

Code:

switch:
  - platform: gpio
    name: "Study Room PIR"
    id: a8_study_room_pir
    pin:
      pcf8574: pcf8574_hub_out_1
      number: 7
      mode: OUTPUT
      inverted: false

binary_sensor:
  - platform: gpio
    name: "a8_study_room_pir"
    device_class: motion
#    on_press:
#      then:
#        - switch.toggle: a8_study_room_pir
    pin:
      pcf8574: pcf8574_hub_in_1
      number: 7
      mode: INPUT
      inverted: false