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ESPHome devices

KMP PRODINo ESP32EX: ESPHome

KMP PRODINo ESP32EX (other devices, ESP32): GPIO pinout and a starter ESPHome config with relays, buttons, LED. Local Home Assistant control with no cloud.

Type
Other devices
Chip
ESP32
Region standard
GLOBAL

Pinout

PinFunction
GPIO16TX RS485
GPIO4RX RS485
GPIO2flow_controll RS485
GPIO0WS2812B RBG Status LED
GPIO32mcp23s08_hub

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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: kmp-prodino-esp32ex

esphome:
  name: ${name}
  friendly_name: "KMP PRODINo ESP32EX"

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: GPIO0
    inverted: true  # WS2812B RBG Status LED

# Other pins from the pinout:
#   GPIO16: TX RS485
#   GPIO4: RX RS485
#   GPIO2: flow_controll RS485
#   GPIO32: mcp23s08_hub

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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