Troubleshooting: Binary Sensor Entities Not Appearing

[engrezk]

Why aren't binary_sensor entities for mini server appearing even though I followed the same tutorial in the video 

https://www.youtube.com/watch?v=J5GRh7Gk...KinConyIoT

and used the provided codes as shown ?
I kindly request assistance in using these entities

Code:

switch:
  - platform: rpi_gpio
    switches:
      - port: 5
        name: "CM4 relay1"
      - port: 22
        name: "CM4 relay2"
      - port: 17
        name: "CM4 relay3"
      - port: 4
        name: "CM4 relay4"
      - port: 6
        name: "CM4 relay5"
      - port: 13
        name: "CM4 relay6"
      - port: 19
        name: "CM4 relay7"
      - port: 26
        name: "CM4 relay8"
       
binary_sensor:
  - platform: rpi_gpio
    sensors:
      - port: 18
        name: "CM4 IN1"
        invert_logic: true
      - port: 23
        name: "CM4 IN2"
        invert_logic: true
      - port: 24
        name: "CM4 IN3"
        invert_logic: true
      - port: 25
        name: "CM4 IN4"
        invert_logic: true
      - port: 12
        name: "CM4 IN5"
        invert_logic: true
      - port: 16
        name: "CM4 IN6"
        invert_logic: true
      - port: 20
        name: "CM4 IN7"
        invert_logic: true
      - port: 21
        name: "CM4 IN8"
        invert_logic: true