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ESPHome devices

Tuya Smart Weather Station: ESPHome

Tuya Smart Weather Station (other devices, RTL87XX): GPIO pinout and a starter ESPHome config with relays, buttons, LED. Local Home Assistant control with no cloud.

Type
Other devices
Chip
RTL87XX
Region standard
GLOBAL

Pinout

PinFunction
PA13UART RX (Connects to TuyaMCU TX)
PA14UART TX (Connects to TuyaMCU RX)
PA12Connected to the board, unknown functionality

Find it in shops: AliExpress

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Starter ESPHome config

Built from the pinout above. Keys and the Wi-Fi password come from secrets.yaml in ESPHome. Check the pins against your hardware revision before flashing: one model can ship with different boards.

substitutions:
  name: tuya-smart-weather-stati

esphome:
  name: ${name}
  friendly_name: "Tuya Smart Weather Station"

rtl87xx:
  board: generic-rtl8710bn-2mb-788k  # check your module

logger:
api:
  encryption:
    key: !secret api_key
ota:
  - platform: esphome
    password: !secret ota_password
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap: {}
captive_portal:

# Other pins from the pinout:
#   PA13: UART RX (Connects to TuyaMCU TX)
#   PA14: UART TX (Connects to TuyaMCU RX)
#   PA12: Connected to the board, unknown functionality

How to flash

  • Most devices are flashed over UART: a 3.3 V USB-TTL adapter to RX, TX, GND and 3V3, holding GPIO0 to ground at power-on (ESP8266/ESP32). Mains power disconnected.
  • Beken (BK72xx) and Realtek chips are flashed with ltchiptool, or with cloudcutter without opening the case if the firmware allows it.
  • Details and board photos: the device page in the ESPHome database.

A config from scratch: ESPHome generator. Which pins are safe: pinout.

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