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ESPHome devices

M5Stack NanoC6: ESPHome

M5Stack NanoC6 (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
GPIO1Grove I2C SCL
GPIO2Grove I2C SDA
GPIO3Infrared LED
GPIO7Blue LED
GPIO9Button
GPIO19RGB Power
GPIO20RGB LED

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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: m5stack-nanoc6

esphome:
  name: ${name}
  friendly_name: "M5Stack NanoC6"

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:

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO9
      mode: INPUT_PULLUP
      inverted: true
    name: "Button"  # Button

status_led:
  pin:
    number: GPIO3
    inverted: false  # Infrared LED

# Other pins from the pinout:
#   GPIO7: Blue LED
#   GPIO20: RGB LED
#   GPIO1: Grove I2C SCL
#   GPIO2: Grove I2C SDA
#   GPIO19: RGB Power

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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