ESPHome Configuration for a ZigBee-Coordinator on ZB-GW03 hardware. Condensation of https://github.com/syssi/esphome-zb-gw03 into one file with some changes.

zigbee-coord.yaml

---
# https://gist.github.com/gretel/e7f2aa35206679c62b40aa95dd111d04
# based on https://github.com/syssi/esphome-zb-gw03 
substitutions:
  devicename: 'hallzigbee'
  area: 'Hall'
  logger_level: 'INFO'
  domain: '.jitter.local'
  enable_ipv6: False

esphome:
  name: ${devicename}
  comment: 'https://zigbee.blakadder.com/eWeLink_ZB-GW03.html'
  project:
    name: 'gretel.crs'
    version: '0.2025.11.08'
  min_version: 2025.10.0
  area: ${area}
  on_boot:
    priority: 600
    then:
      - switch.turn_off: download_mode
      - switch.turn_on: zigbee_reset

esp32:
  board: esp-wrover-kit
  framework:
    type: esp-idf

external_components:
  #- source: github://oxan/esphome-stream-server@master
  - source: github://tube0013/esphome-stream-server-v2

logger:
  level: ${logger_level}

network:
  enable_ipv6: ${enable_ipv6}
  min_ipv6_addr_count: 2

ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  power_pin: GPIO16
  clk:
    pin: GPIO17
    mode: CLK_OUT
  phy_addr: 1
  domain: ${domain}

ota:
  - platform: esphome
    password: !secret ota_key

time:
  - platform: homeassistant
    id: homeassistant_time

api:
  reboot_timeout: 0s # disable
  encryption:
    key: !secret zigbee_key

status_led:
  pin:
    number: GPIO15 # Red LED
    inverted: True

mdns:
  services:
    - service: "_zigbee-coordinator"
      protocol: "_tcp"
      port: 6638
      txt:
        version: 1
        name: "ZB-GW03"
        radio_type: "ezsp"
        serial_number: !lambda 'return esphome::get_mac_address();'

i2c:
  - id: i2c_bus
    sda: GPIO33
    scl: GPIO32
    scan: False

uart:
  id: uart_zigbee
  rx_pin: GPIO4
  tx_pin: GPIO2
  baud_rate: 115200

stream_server:
  id: sserver
  uart_id: uart_zigbee
  port: 6638

sensor:
  - platform: internal_temperature
    name: "Core Temperature"
    update_interval: 15s

  - platform: uptime
    name: "Uptime"
    update_interval: 15s
    icon: "mdi:clock-start"

binary_sensor:
  - platform: status
    name: "Status"

  - platform: stream_server
    name: "Stream Server Status"
    stream_server: sserver

text_sensor:
  - platform: version
    name: "Version"
    icon: "mdi:exponent-box"

  - platform: ethernet_info
    ip_address:
      name: "IP Address"
      address_0:
        name: "IP Address 0"
      address_1:
        name: "IP Address 1"
      address_2:
        name: "IP Address 2"
      address_3:
        name: "IP Address 3"
      address_4:
        name: "IP Address 4"
    dns_address:
      name: "DNS Address"
    mac_address:
      name: "MAC Address"

button:
  - platform: restart
    name: "Restart"
    icon: "mdi:restart"

switch:
  - platform: template
    id: zigbee_reset
    name: "Zigbee Reset"
    turn_on_action:
      - switch.turn_on: zigbee_rst
      - delay: 10ms
      - switch.turn_off: zigbee_rst

  - platform: gpio
    id: zigbee_rst
    pin: GPIO13 # nRST
    name: "Zigbee nRST"
    inverted: True
    internal: True
    restore_mode: ALWAYS_OFF

  - platform: gpio
    id: download_mode
    pin: GPIO12 # PA00
    name: "Zigbee Download Mode"
    inverted: True
    restore_mode: ALWAYS_OFF

  - platform: template
    id: zigbee_pairing_mode
    name: "Zigbee Pairing mode"
    turn_on_action:
      - switch.turn_on: download_mode
      - delay: 5s
      - switch.turn_off: download_mode

light:
  - platform: monochromatic
    name: "Green LED"
    output: output0

output:
  - platform: ledc
    pin: GPIO14
    id: output0
    inverted: True