Sonoff BASIC R4 v1.0

Sonoff BASIC R4 is upgraded with esp32c3 and a new 'magic mode switch' feature that can be enabled with custom component by @ssieb.

Pinouts and pictures are taken from digiblur's website

GPIO Pinout

Pin	Function
GPIO4	Relay
GPIO5	Pin for 'Magic Switch Mode'
GPIO6	Blue LED
GPIO9	Button

PCB

Basic Configuration

esphome:
  name: basic-r4
  friendly_name: basic-r4
  platformio_options:
    board_build.mcu: esp32c3
    board_build.variant: esp32c3

esp32:
  variant: ESP32C3
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf
    sdkconfig_options:
      CONFIG_BT_BLE_50_FEATURES_SUPPORTED: y
      CONFIG_BT_BLE_42_FEATURES_SUPPORTED: y
      CONFIG_ESP_TASK_WDT_TIMEOUT_S: "10"
# Would not boot with the stock ESP32-C3 ESPHome 2023.9 default YAML config until I added/change the settings above for ESP32C3
web_server:

mdns:

logger:

captive_portal:

api:
  password: !secret api_password

ota:
  password: !secret ota_password

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

#magic switch mode
external_components:
  - source:
      type: git
      url: https://github.com/ssieb/esphome_components
    components: [magic_switch]
    refresh: 1min

magic_switch:
  pin: 5
  on_switch:
    - switch.toggle: switch_1

esp32_ble_tracker:
  scan_parameters:
    active: true
    interval: 1100ms
    window: 1100ms

bluetooth_proxy:
  active: true

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO9
      mode:
        input: true
        pullup: true
      inverted: true
    id: button_1
    on_press:
      then:
        - switch.toggle: switch_1

switch:
  - platform: gpio
    name: Tomada
    id: switch_1
    pin:
      number: 04
    restore_mode: ALWAYS_OFF

status_led:
  pin:
    number: GPIO6
    inverted: yes