AVATTO S06 WiFi IR Universal Remote Controller (No Temp/No Humidity)

General Notes
There's two hardware iterations of this particular IR blaster: the older version documented here that uses an ESP01 module, and a newer one that uses a CB3S module (a Beken BK7231N module in the same form factor as the older ESP01). Outwardly, both appear identical.
GPIO Pinout
| Pin | Function | 
|---|---|
| GPIO4 | Blue Status LED | 
| GPIO14 | Remote Transmitter | 
| GPIO5 | Remote Receiver | 
| GPIO13 | Reset Button | 
Getting it up and running
This device needs very likely to be flashed manually. Tuya-convert didn't worked for me. I have powered the device with a mobile charger during the flashing procedure, as the used serial cable sets to logic level based on the input voltage. Which is 3.3V in this case.
| Serial | ESP | 
|---|---|
| RX | TX | 
| TX | RX | 
| RTS | RESET | 
| 3.3V | 3.3V | 
| GND | GND | 
| GPIO0 (GND) | 
Flashing
# Create a backup of the original firmware
esptool.py -p /dev/ttyUSB0 -b 460800 read_flash 0x00000 0x100000 avotta_s06_original_firmware.bin
# Erase the flash
esptool.py -p /dev/ttyUSB0 erase_flash
# Upload the esphome firmware
esptool.py -p /dev/ttyUSB0 write_flash -fs 1MB 0x0 ir_remote.bin
Hardware Hack
If you want to wake the device via the reset button on the bottom from deep sleep. You need to solder a peace of wire between the GPIO13 and the RESET pin of the ESP8266 MCU.
Configuration
# Basic Config
---
# https://esphome.io/devices/esp8266.html
esphome:
  name: ir_remote
esp8266:
  board: esp01_1m
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:
captive_portal:
# Enable logging
logger:
  level: DEBUG # Default
# Enable Home Assistant API
api:
  encryption:
    key: !secret api_encryption_key
ota:
  password: !secret ota_password
# https://esphome.io/components/status_led.html
status_led:
  pin: 4
# https://esphome.io/components/remote_receiver.html
remote_receiver:
  id: rcvr
  pin:
    number: 5
    mode: INPUT_PULLUP
    inverted: True
# https://www.esphome.io/components/remote_transmitter.html
remote_transmitter:
  id: tamtr
  pin: 14
  carrier_duty_percent: 50%
# https://esphome.io/components/climate/ir_climate.html
climate:
  - platform: toshiba
    id: ac
    name: AC'
    receiver_id: rcvr
    transmitter_id: tamtr
switch:
  - platform: template
    name: "AC Preset"
    id: ac_preset
    icon: mdi:cached
    turn_on_action:
      - climate.control:
          id: ac
          mode: COOL
          target_temperature: 24°C
          fan_mode: AUTO
          swing_mode: VERTICAL
    # https://esphome.io/components/switch/shutdown.html
  - platform: shutdown
    name: "IR Remote Shutdown"
    id: ir_remote_shutdown