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ESPHome devices

M5Stack Fire: ESPHome

M5Stack Fire (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
GPIO39Button A
GPIO38Button B
GPIO37Button C
GPIO34Microphone Pin
GPIO25Speaker Pin 1
GPIO26Speaker Pin 2
GPIO22GROVE A SCL
GPIO21GROVE A SDA
GPIO36GROVE B SCL
GPIO26GROVE B SDA
GPIO16GROVE C RXD
GPIO17GROVE C TXD
GPIO15SIG Pin

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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-fire

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

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: GPIO39
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 1"  # Button A
  - platform: gpio
    pin:
      number: GPIO38
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 2"  # Button B
  - platform: gpio
    pin:
      number: GPIO37
      mode: INPUT_PULLUP
      inverted: true
    name: "Button 3"  # Button C

# Other pins from the pinout:
#   GPIO34: Microphone Pin
#   GPIO25: Speaker Pin 1
#   GPIO26: Speaker Pin 2
#   GPIO22: GROVE A SCL
#   GPIO21: GROVE A SDA
#   GPIO36: GROVE B SCL
#   GPIO26: GROVE B SDA
#   GPIO16: GROVE C RXD
#   GPIO17: GROVE C TXD
#   GPIO15: SIG Pin

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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