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ESPHome devices

KinCony KC868-A4S: ESPHome

KinCony KC868-A4S (relays, ESP32): GPIO pinout and a starter ESPHome config with relays, buttons, LED. Local Home Assistant control with no cloud.

Type
Relays
Chip
ESP32
Region standard
GLOBAL

Pinout

PinFunction
GPIO36ANALOG_A1
GPIO39ANALOG_A2
GPIO34ANALOG_A3
GPIO35ANALOG_A4
GPIO4IIC_SDA
GPIO16IIC_SCL
GPIO5DS18B20/DHT11/DHT21/LED strip-1
GPIO14DS18B20/DHT11/DHT21/LED strip-2
GPIO23ETH_MDC
GPIO18ETH_MDIO
GPIO33RS485_RXD
GPIO32RS485_TXD
GPIO13GSM_RXD
GPIO15GSM_TXD

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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: kincony-kc868-a4s

esphome:
  name: ${name}
  friendly_name: "KinCony KC868-A4S"

esp32:
  board: esp32dev

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:

status_led:
  pin:
    number: GPIO5
    inverted: false  # DS18B20/DHT11/DHT21/LED strip-1

# Other pins from the pinout:
#   GPIO14: DS18B20/DHT11/DHT21/LED strip-2
#   GPIO36: ANALOG_A1
#   GPIO39: ANALOG_A2
#   GPIO34: ANALOG_A3
#   GPIO35: ANALOG_A4
#   GPIO4: IIC_SDA
#   GPIO16: IIC_SCL
#   GPIO23: ETH_MDC
#   GPIO18: ETH_MDIO
#   GPIO33: RS485_RXD
#   GPIO32: RS485_TXD
#   GPIO13: GSM_RXD
#   GPIO15: GSM_TXD

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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