Loading normal BME280 sensor value to external component code

ESPHome
1

Hi, I’ve spent many hours trying to figure out how exactly the new external component works, but I am in a dead spot.

I have forked an external component that creates a Climate Thermostat to manage Toshiba Air Conditioners that use the AB protocol. I’ve changed a couple of things to suit my ducted system and slightly improve some bits, and so far it works. I have also redesigned the original project board with and ESP12 and eliminated the need for usb power. Which I plan to publish when this is finished.

The project is here:
https://github.com/makusets/esphome-tcc-link/tree/main

However, my unit does not report the room temperature from the wall remote, instead it reports the return duct intake air temperature. And that is what I see in the thermostat element.

To correct that, I have included a BME280 I2C sensor on the board, which is working fine and reporting the temperature as a separate entity.

Now, my problem, I want to be able to access the BME sensor reported temperature from my external component, so that I can use it to fill the thermostat room temp variable. I don’t know how to do that. I am not sure how am I suppose to put that in the py file and how to access it later from the cpp file.

This is my YAML file:

esphome:
  name: toshibaab-wifi-link
  friendly_name: ToshibaAB_wifi_link

esp8266:
  board: esp12e

# Enable logging
logger:
  baud_rate: 0  #disable hardware UART log
  level: DEBUG
# Enable Home Assistant API
api:
  encryption:
    key: "****"

ota:
  password: "****"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ap_timeout: 180s
    ssid: "Toshibaab-Wifi-Link"
    password: "****"

captive_portal:

i2c:
  sda: GPIO2
  scl: GPIO14
  scan: True

external_components:
  - source:
      type: git
      url: https://github.com/makusets/esphome-tcc-link
    refresh: 0s 

uart:
  tx_pin: GPIO15
  rx_pin: GPIO13
  baud_rate: 2400
  parity: EVEN

climate:
  - platform: tcc_link
    name: "Toshiba AC"
    id: toshiba_ac
    connected:
      name: "Toshiba AC Connected"
    failed_crcs:
      name: "Toshiba AC Failed CRCs"
    vent:
      name: "Toshiba AC Vent Switch" 
    on_data_received:
      - lambda: |-
          ESP_LOGD("TU2C", "Data received: %d bytes", x.size());

sensor:
  - platform: bme280_i2c
    temperature:
      name: "Toshiba Temperature"
      id: esp_sensor_temp
      oversampling: 1x
    pressure:
      name: "Toshiba Pressure"
      id: toshiba_pressure
      accuracy_decimals: 0
      oversampling: 1x
    humidity:
      name: "Toshiba Humidity"
      id: toshiba_humidity
      accuracy_decimals: 0
      oversampling: 2x
    address: 0x76
    update_interval: 30s

The sensor I want to be able to access is esp_sensor_temp

I have been playing around with the python file, but I couldn’t figure it out.

Any suggestions would be greatly appreciated.

Miquel