ESPHome Configuration for Nedis WIFIP121FWT

WIFIP121FWT.yaml

esphome:
  name: nedis-esp-004

substitutions:
  device_name: nedis_esp_004
  friendly_name: Nedis ESP 004

# Nedis WIFIPO121FWT with bk7231N
# Nedis WIFIPO120FWT with bk7231N chip has markings "10T40 and µ" on it's label
# Nedis WIFIPO120FWT with bk7231T chip has no those markings on it's label
# Create HA input Helper (example 0-7200 seconds) with device friendly_name for pulsetime Function
# DISCLAIMER: The Rear Lights Warranty is on. Use at your own risk!
bk72xx:
  board: generic-bk7231n-qfn32-tuya

logger:

web_server:

captive_portal:

ota:
  password: !secret ota_password
  
mdns:

api:
  encryption:
    key: "Generate API-key: https://esphome.io/components/api.html?highlight=randomly%20generated"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:
    ssid: "${friendly_name} Fallback Hotspot"
    password: !secret ap_password


text_sensor:
  - platform: libretiny
    version:
      name: ${device_name} LibreTiny Version

binary_sensor:
  - platform: gpio
    id: ${device_name}_binary_switch_1
    pin:
      number: P7
      inverted: false
      mode: INPUT_PULLUP
    on_press:
      then:
        - switch.toggle: ${device_name}_switch_1

switch:
  - platform: gpio
    id: ${device_name}_switch_1
    name: ${friendly_name} Relay 1
    pin: P8
    on_turn_on:
      - light.turn_on: ${device_name}_red_light_status
      - script.execute: pulsetime # Initialize pulsetime script
    on_turn_off:
      - light.turn_off: ${device_name}_red_light_status
      - script.stop: pulsetime # Initialize pulsetime script

light:
  - platform: status_led
    id: ${device_name}_blue_light_status
    pin:
      number: P10
      inverted: false
  - platform: status_led
    id: ${device_name}_red_light_status
    pin:
      number: P6
      inverted: false
      
sensor:
  - platform: hlw8012
    model: BL0937
    cf_pin:
      number: P26
      inverted: true
    cf1_pin:
      number: P24
      inverted: true
    sel_pin:
      number: P11
      inverted: true
    current:
      name: ${friendly_name} Current
      id: ${device_name}_current
    voltage:
      name: ${friendly_name} Voltage
      id: ${device_name}_voltage
      filters:
      # Map from sensor -> measured value
        - calibrate_linear:
          - 0.0 -> 0.0
          - 579.0 -> 235.7   
    power:
      name: ${friendly_name} Power
      id: ${device_name}_power
      filters:
        - calibrate_linear:
          - 0.0 -> 0.0
          - 717.11688 -> 265.8
    energy:
      name: ${friendly_name} Energy
      id: ${device_name}_energy
    voltage_divider: 1881 # 4 * 470K resistors upstream and 1k resistor downstream for voltage divider (4 x 470 000 + 1000) / 1000
    current_resistor: 0.001 ohm
    update_interval: 60s      

  # Example configuration entry with 2 sensors and filter

  - platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
    name: "${friendly_name} WiFi Signal dB"
    id: ${device_name}_wifi_signal_db
    update_interval: 60s
    entity_category: "diagnostic"

# Input helper as sensor for pulsetime script
  - platform: homeassistant
    name: "${friendly_name} Pulsetime"
    id: ${device_name}_pulsetime
    entity_id: input_number.${device_name}_pulsetime #The entity of input_number in HA    

# Tasmota like pulsetime script
script:
  - id: pulsetime
    then:
      - if:
          condition:
            lambda: 'return id(${device_name}_pulsetime).state > 0;'
          then:
            - delay: !lambda |-
                return id(${device_name}_pulsetime).state * 1000; 
            - switch.turn_off: ${device_name}_switch_1

Yes, noticed that after getting readings of 550volt.
Used a cheap "kill-a-watt" and this https://esphome.io/components/sensor/hlw8012.html#hlw8012-power-sensor wedsite, so if anyone find this in the future then know where to look for help on that too :)