atom-lite-stream-server.yaml

substitutions:
  name: ***
  display_name: ***

esphome:
  name: $name
  friendly_name: $display_name

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:
  level: INFO
  baud_rate: 0

# Enable Home Assistant API
api:
  encryption:
    key: !secret api_key
mqtt:
  broker: !secret mqtt_broker
  username: !secret mqtt_username
  password: !secret mqtt_password

ota:

web_server:
  port: 80
  include_internal: false

external_components:
  - source: github://oxan/esphome-stream-server
uart:
  id: uart_bus
  baud_rate: 9600
  tx_pin: 19
  rx_pin: 22
  debug:
    direction: BOTH
    after:
      timeout: 100ms
    sequence:
      - lambda: UARTDebug::log_hex(direction, bytes, ' ');
      - output.turn_on: red_led
      - delay: 50ms
      - output.turn_off: red_led
      - delay: 50ms


stream_server:
  uart_id: uart_bus

binary_sensor:
  - platform: stream_server
    connected:
      name: $display_name Connected
      id: connected

sensor:
  - platform: stream_server
    connection_count:
      name: $display_name Number of connections
    
  - platform: wifi_signal
    name: "$display_name WiFi Signal Sensor"
    update_interval: 60s

text_sensor:
  - platform: wifi_info
    ip_address:
      name: "$display_name IP Address"
  - platform: version
    name: "$display_name ESPHome Version"

light:
  - platform: fastled_clockless
    chipset: WS2812B
    pin: 27
    num_leds: 1
    rgb_order: GRB
    id: rgb_led
    restore_mode: ALWAYS_OFF
    default_transition_length: 0ms
  - platform: status_led
    id: _status_led
    output: red_led

number:
  - platform: template
    name: Brightness
    id: brightness
    min_value: 0
    max_value: 1
    step: 0.1
    optimistic: true
    initial_value: 0.5


output:
  - platform: template
    id: red_led
    type: binary
    write_action:
      - if:
          condition:
             lambda: return state > 0;
          then:
            - light.turn_on:
                id: rgb_led
                red: 1.0
                green: 0.0
                blue: 0.0
                brightness: !lambda "return id(brightness).state;"
          else:
            - light.turn_on:
                id: rgb_led
                red: 0.0
                green: 0.0
                blue: 0.0
                brightness: 0%
  - platform: template
    id: green_led
    type: binary
    write_action:
      - if:
          condition:
             lambda: return state > 0;
          then:
            - light.turn_on:
                id: rgb_led
                red: 0.0
                green: 1.0
                blue: 0.0
                brightness: !lambda "return id(brightness).state;"
          else:
            - light.turn_on:
                id: rgb_led
                red: 0.0
                green: 0.0
                blue: 0.0
                brightness: 0%
  - platform: template
    id: blue_led
    type: binary
    write_action:
      - if:
          condition:
             lambda: return state > 0;
          then:
            - light.turn_on:
                id: rgb_led
                red: 0.0
                green: 0.0
                blue: 1.0
                brightness: !lambda "return id(brightness).state;"
          else:
            - light.turn_on:
                id: rgb_led
                red: 0.0
                green: 0.0
                blue: 0.0
                brightness: 0%

interval:
  - interval: 3s
    then:
      - if:
          condition:
            wifi.connected:
          then:
            if:
              condition:
                api.connected
              then:
                - output.turn_on: blue_led
                - delay: 0.25s
                - output.turn_off: blue_led
                - delay: 0.25s
                - output.turn_on: blue_led
                - delay: 0.25s
                - output.turn_off: blue_led
                - delay: 0.25s
              else:
                - output.turn_on: blue_led
                - delay: 0.5s
                - output.turn_off: blue_led
                - delay: 0.5s
          else:
            - output.turn_off: blue_led
      - if:
          condition:
            binary_sensor.is_on: connected
          then:
            - output.turn_on: green_led
            - delay: 0.5s
            - output.turn_off: green_led
            - delay: 0.5s
          else:
            - output.turn_off: green_led

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: $display_name
    password: !secret fallback_password

captive_portal:

This is an ESPhome config file for using an M5Stack Atom Lite as a serial to ip adapter.