ESP32 connected keypad in ESPHome adding single digit and code sensor to HA

keypad01.yaml

esphome:
  name: keypad01
  platform: ESP32
  board: esp32dev
  includes:
    - keypad_textsensor.h
    - keypad_sensor.h
  libraries:
    - "Keypad"

wifi:
  ssid: "[Your SSID]"
  password: "[Your WIFI password]"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Keypad01 Fallback Hotspot"
    password: "elXNfB19fgJw"

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:

text_sensor:
  - platform: custom
    lambda: |-
      auto my_sensor = new KeypadTextSensor();
      App.register_component(my_sensor);
      return {my_sensor};
    
    text_sensors:
      name: "Keypad01 Code sensor"

sensor:
  - platform: custom
    lambda: |-
      auto my_sensor = new KeypadSensor();
      App.register_component(my_sensor);
      return {my_sensor};
    
    sensors:
      name: "Keypad01 Key sensor"

The keypad is connected to the ESP32 using the pins as per the code.
Then this configuration is compiled and loaded into the ESP32.
When the ESP32 is running it connects to ESPHome and appears as two sensors in HA.
One sensor that update with the value on each key pressed and another sensor that update it's value when you press # (i believe), with all keys pressed.

See video in danish here: https://www.facebook.com/esbenrr/videos/10158740941943209
Video coming up on YouTube later: https://www.youtube.com/channel/UCbPhGaepiG7M858RctCgQuQ